Corelle Brands, LLC is an American kitchenware products maker and distributor based in Downers Grove, Illinois .
83-641: The company began as the Corning Consumer Products Company , a division of the glassmaker Corning Inc. , and was also known as " World Kitchen " from 2000 until 2018. The company began as an unincorporated consumer products division of Corning, Inc. in 1915 with the invention of heat-resistant glass bakeware sold under the Pyrex brand. It was incorporated as the Corning Consumer Products Company (CCPC) in
166-428: A gel of tetraethylorthosilicate and trimethoxyboroxine. When this gel is exposed to water under proper conditions, a dynamic reaction ensues, which results in the nanoparticles. Borosilicate (or "boro", as it is often called) is used extensively in the glassblowing process lampworking ; the glassworker uses a burner torch to melt and form glass, using a variety of metal and graphite tools to shape it. Borosilicate
249-559: A mica disc and contained in a borosilicate glass gas discharge tube (arc tube) and a metal cap. They include the sodium-vapor lamp that is commonly used in street lighting. Borosilicate glass usually melts at about 1,650 °C (3,000 °F; 1,920 K). Borosilicate glass was first developed by German glassmaker Otto Schott in the late 19th century in Jena . This early borosilicate glass thus came to be known as Jena glass . After Corning Glass Works introduced Pyrex in 1915,
332-548: A cash transaction approximately $ 900 million. Acquisition closed during 2018; 3M Communication Market Division became part of Corning Optical Communications business unit. As of 2024 : Borosilicate glass Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 K at 20 °C), making them more resistant to thermal shock than any other common glass. Such glass
415-453: A chemically hardened outer layer, and its manufacture incorporated an ion exchange and a "fusion process" in special furnaces that Corning built in its Christiansburg, Virginia facility. Corning developed it as an alternative to laminated windshields with the intention of becoming an automotive industry supplier. After being installed as side glass in a limited run of 1968 Plymouth Barracudas and Dodge Darts, Chemcor windshields debuted on
498-643: A clear view of the arc in situations where visibility is limited. Borosilicate glass is offered in slightly different compositions under different trade names: It was initially thought that borosilicate glass could not be formed into nanoparticles , since an unstable boron oxide precursor would prevent successful forming of these shapes. However, in 2008 a team of researchers from the Swiss Federal Institute of Technology at Lausanne were successful in forming borosilicate nanoparticles of 100 to 500 nanometers in diameter. The researchers formed
581-439: A component of high-quality products such as implantable medical devices and devices used in space exploration . Virtually all modern laboratory glassware is made of borosilicate glass. It is widely used in this application due to its chemical and thermal resistance and good optical clarity, but the glass can react with sodium hydride upon heating to produce sodium borohydride , a common laboratory reducing agent. Fused quartz
664-678: A cranberry tinted version was available from 1992 until 2004. A white variation was available primarily in Europe as "White Vision" and in the US in limited supply under the name "Pyromax". Visions was temporarily unavailable in the United States from 2004 until 2006 but has otherwise been produced non-stop for nearly 40 years. In 1930 Chicago Cutlery was incorporated by Alfred Paulson. Initially it focused on knife conditioning before making its main business manufacture of kitchen cutlery. Chicago Cutlery
747-529: A decade, losing 30 million dollars over the previous five years. In February 2011, Corning acquired MobileAccess Networks, an Israeli company that develops Distributed antenna systems , which are often used by universities, stadiums and airports to ensure seamless wireless coverage throughout a facility. MobileAccess Networks became part of Corning's telecommunications business unit. In July 2017, Corning acquired SpiderCloud Wireless . In December 2017, Corning acquired all of 3M Communication Market Division, in
830-459: A fiber with only 4 dB/km, using germanium oxide as the core dopant . Such low attenuations made fiber optics practical for telecommunications and networking . Corning became the world's leading manufacturer of optical fiber. In 1977, considerable attention was given to Corning's Z Glass project. Z Glass was a product used in television picture tubes. Due to a number of factors, the exact nature of which are subject to dispute, this project
913-450: A glass workshop at Pepperdine College, with instructor Margaret Youd. A few of the students in the classes, including Suellen Fowler, discovered that a specific combination of oxides made a glass that would shift from amber to purples and blues, depending on the heat and flame atmosphere. Fowler shared this combination with Paul Trautman, who formulated the first small-batch colored borosilicate recipes. He then founded Northstar Glassworks in
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#1732776391581996-403: A high-purity fused silica employed in microlithography systems, a low expansion glass utilized in the construction of reflective mirror blanks, windows for U.S. Space Shuttles , and Steuben art glass . The number of Corning facilities employing the traditional tanks of molten glass has declined over the years, but it maintains the capacity to supply bulk or finished glass of many types. Corning
1079-492: A lampworking shop to manufacture and repair their glassware. For this kind of "scientific glassblowing", the specifications must be exact and the glassblower must be highly skilled and able to work with precision. Lampworking is also done as art, and common items made include goblets, paper weights, pipes, pendants, compositions and figurines. In 1968, English metallurgist John Burton brought his hobby of hand-mixing metallic oxides into borosilicate glass to Los Angeles. Burton began
1162-645: A long history of community development and has assured community leaders that it intends to remain headquartered in its small upstate New York hometown. Corning Glass Works was founded in 1851 by Amory Houghton , in Somerville, Massachusetts , originally as the Bay State Glass Co. It later moved to Williamsburg, Brooklyn , and operated as the Brooklyn Flint Glass Works. The company moved again to its ultimate home and eponym,
1245-415: A particular way. Apart from the highly resistant varieties (B 2 O 3 up to a maximum of 13%), there are others that – due to the different way in which the boric oxide is incorporated into the structural network – have only low chemical resistance (B 2 O 3 content over 15%). Hence we differentiate between the following subtypes. The B 2 O 3 content for borosilicate glass is typically 12–13% and
1328-601: A partnership with bottle maker Owens-Illinois , which formed the company known today as Owens Corning . Owens Corning was spun off as a separate company in 1938. The company had a history of science-based innovations following World War II and the strategy by management was research and "disruptive" and "on demand" product innovation. In 1962, Corning developed Chemcor, a new toughened automobile windshield designed to be thinner and lighter than existing windshields, which reduced danger of personal injury by shattering into small granules when smashed. This toughened glass had
1411-427: A pristine surface quality. Other typical applications for different forms of borosilicate glass include glass tubing, glass piping , glass containers, etc. especially for the chemical industry. In addition to about 75% SiO 2 and 8–12% B 2 O 3 , these glasses contain up to 5% oxides of alkaline earth metal and alumina (Al 2 O 3 ). This is a subtype of slightly softer glasses, which have thermal expansions in
1494-452: Is a transparent cookware line created by Corning France in the late 1970s. In 1983, it was introduced in the US and became the number one selling cookware set for a number of years. Visions is made of a transparent version of Pyroceram glass-ceramic, occasionally referred to as Calexium. However, its lids have typically been made out of Pyrex (both Borosilicate and Soda-lime glass ) in the US and Asia. Originally introduced in an amber color,
1577-491: Is about 330 °F (180 °C), whereas soda–lime glass can withstand only about a 100 °F (55 °C) change in temperature. This is why typical kitchenware made from traditional soda–lime glass will shatter if a vessel containing boiling water is placed on ice, but Pyrex or other borosilicate laboratory glass will not. Optically, borosilicate glasses are crown glasses with low dispersion ( Abbe numbers around 65) and relatively low refractive indices (1.51–1.54 across
1660-447: Is also a major manufacturer of ceramic emission control devices for catalytic converters in cars and light trucks that use gasoline engines. The company is also investing in the production of ceramic emission control products for diesel engines as a result of tighter emission standards for those engines both in the U.S. and abroad. In 2007, Corning introduced an optic fiber, ClearCurve , which uses nanostructure technology to facilitate
1743-533: Is also a material of choice for evacuated-tube solar thermal technology because of its high strength and heat resistance. The thermal insulation tiles on the Space Shuttle were coated with a borosilicate glass. Borosilicate glasses are used for immobilisation and disposal of radioactive wastes . In most countries high-level radioactive waste has been incorporated into alkali borosilicate or phosphate vitreous waste forms for many years; vitrification
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#17327763915811826-563: Is also found in some laboratory equipment when its higher melting point and transmission of UV are required (e.g. for tube furnace liners and UV cuvettes ), but the cost and manufacturing difficulties associated with fused quartz make it an impractical investment for the majority of laboratory equipment. Additionally, borosilicate tubing is used as the feedstock for the production of parenteral drug packaging, such as vials and pre-filled syringes , as well as ampoules and dental cartridges . The chemical resistance of borosilicate glass minimizes
1909-424: Is an established technology. Vitrification is a particularly attractive immobilization route because of the high chemical durability of the vitrified glass product. The chemical resistance of glass can allow it to remain in a corrosive environment for many thousands or even millions of years. Borosilicate glass tubing is used in specialty TIG welding torch nozzles in place of standard alumina nozzles. This allows
1992-429: Is approximately 80% silica , 13% boric oxide , 4% sodium oxide or potassium oxide and 2–3% aluminium oxide . Though more difficult to make than traditional glass due to its high melting temperature, it is economical to produce. Its superior durability, chemical and heat resistance finds use in chemical laboratory equipment, cookware, lighting, and in certain kinds of windows. The manufacturing process depends on
2075-423: Is built. The temperature, along with various coatings ( Kapton tape , painter's tape, hair spray, glue stick, ABS+acetone slurry, etc.), ensure that the first layer may be adhered to and remain adhered to the plate, without warping, as the first and subsequent layers cool following extrusion. Subsequently, following the build, the heating elements and plate are allowed to cool. The resulting residual stress formed when
2158-400: Is commonly used in the glassblowing form of lampworking and the artists create a range of products such as jewelry , kitchenware , sculpture , as well as for artistic glass smoking pipes. Lighting manufacturers use borosilicate glass in some of their lenses. Organic light-emitting diodes (OLED) (for display and lighting purposes) also use borosilicate glass (BK7). The thicknesses of
2241-505: Is created by combining and melting boric oxide , silica sand, soda ash , and alumina. Since borosilicate glass melts at a higher temperature than ordinary silicate glass , some new techniques were required for industrial production. In addition to quartz , sodium carbonate , and aluminium oxide traditionally used in glassmaking , boron is used in the manufacture of borosilicate glass. The composition of low-expansion borosilicate glass, such as those laboratory glasses mentioned above,
2324-500: Is engaged in research and development on green lasers , mercury abatement, microreactors , photovoltaics, and silicon on glass. Through its Life Sciences division, the company offers products to support life science research, including stem-cell culture products. In September 2019, Apple announced that it would invest $ 250 million in Corning, in an effort to develop and manufacture the glass needed for many of its products, including
2407-414: Is even better in this respect (having one-fifteenth the thermal expansion of soda–lime glass); however, the difficulty of working with fused quartz makes quartzware much more expensive, and borosilicate glass is a low-cost compromise. While more resistant to thermal shock than other types of glass, borosilicate glass can still crack or shatter when subjected to rapid or uneven temperature variations. Among
2490-461: Is involved in two joint ventures : Dow Corning and Pittsburgh Corning. The company completed the corporate spin-offs of Quest Diagnostics and Covance (now Fortrea ) in January 1997. Corning is one of the main suppliers to Apple Inc. Since working with Steve Jobs in 2007, to develop the iPhone ; Corning develops and manufactures Gorilla Glass , which is used by many smartphone makers. It
2573-516: Is not workable until it reaches over 538 °C (1,000 °F). That means that in order to industrially produce this glass, oxygen/fuel torches must be used. Glassblowers borrowed technology and techniques from welders. Borosilicate glass has become the material of choice for fused deposition modeling (FDM), or fused filament fabrication (FFF), build plates. Its low coefficient of expansion makes borosilicate glass, when used in combination with resistance-heating plates and pads, an ideal material for
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2656-534: Is one of the few still capable of producing glass-ceramic products. In 1888, Edward Katzinger founded the Edward Katzinger Company in Chicago to manufacture baking pans. In 1945, the company went public under the new name EKCO Products Company. Throughout its history, the company grew both organically and with acquisitions until it was the largest non-electric housewares manufacturer in the US by
2739-566: Is one of the world's biggest glassmakers. Corning won the National Medal of Technology and Innovation four times for its product and process innovations. Corning continues to maintain its world headquarters at Corning, N.Y. The firm also established one of the first industrial research labs there in 1908. It continues to expand the nearby research and development facility, as well as operations associated with catalytic converters and diesel engine filter product lines. Corning has
2822-403: Is referred to as "hard glass" and has a higher melting point (approximately 3,000 °F / 1648 °C) than "soft glass", which is preferred for glassblowing by beadmakers. Raw glass used in lampworking comes in glass rods for solid work and glass tubes for hollow work tubes and vessels/containers. Lampworking is used to make complex and custom scientific apparatus; most major universities have
2905-656: Is subjected to less thermal stress and can withstand temperature differentials without fracturing of about 165 °C (300 °F). It is commonly used for the construction of reagent bottles and flasks , as well as lighting, electronics, and cookware. For many other applications, soda-lime glass is more common. Borosilicate glass is sold under various trade names, including Borosil , Duran , Pyrex , Glassco, Supertek, Suprax, Simax, Bellco, Marinex (Brazil), BSA 60, BSC 51 (by NIPRO), Heatex, Endural, Schott , Refmex , Kimax, Gemstone Well, United Scientific, and MG (India). Single-ended self-starting lamps are insulated with
2988-413: Is used for some measuring cups, featuring screen printed markings providing graduated measurements. Borosilicate glass is sometimes used for high-quality beverage glassware, particularly in pieces designed for hot drinks. Items made of borosilicate glass can be thin yet durable, or thicker for extra strength, and are microwave - and dishwasher-safe. Many high-quality flashlights use borosilicate glass for
3071-439: The 1970 model year Javelins and AMXs built by American Motors Corporation (AMC) . As there were no mandatory safety standards for motor vehicle windshields, the larger automakers had no financial incentive to change from the cheaper existing products. Corning terminated its windshield project in 1971, after it turned out to be one of the company's "biggest and most expensive failures." However, like many Corning innovations,
3154-799: The BK7 glass substrates are usually less than 1 millimeter for OLED fabrication. Due to its optical and mechanical characteristics in relation with cost, BK7 is a common substrate in OLEDs. However, depending on the application, soda–lime glass substrates of similar thicknesses are also used in OLED fabrication. Many astronomical reflecting telescopes use glass mirror components made of borosilicate glass because of its low coefficient of thermal expansion. This makes very precise optical surfaces possible that change very little with temperature, and matched glass mirror components that "track" across temperature changes and retain
3237-425: The Corning Consumer Products Company. The consumer affairs magazine Consumer Reports investigated the issue, in January 2011, confirming that borosilicate glass bakeware was less susceptible to thermal shock breakage than tempered soda-lime bakeware. However, the organization admitted its testing conditions were "contrary to instructions" provided by the manufacturer. Statistical Assessment Service (STATS) analyzed
3320-894: The Pyrex Charleroi plant in March 2024. On September 4, 2024 Anchor Hocking (a Centre Lane Partners company) announced that they will be closing the Pyrex Manufacturing Plant in Charleroi, PA Corelle Brands products were typically sold in supermarkets in the USA , and by some high-end retailers catering to upper class consumers in parts of Asia , Europe , and South America . In China, its goods enjoy limited distribution and products are sold through TV Home Shopping channels and in shopping malls. Corelle Brands also had outlet stores Corningware, Corelle and More throughout
3403-499: The SiO 2 content over 80%. High chemical durability and low thermal expansion (3.3 × 10 K ) – the lowest of all commercial glasses for large-scale technical applications – make this a versatile glass material. High-grade borosilicate flat glasses are used in a wide variety of industries, mainly for technical applications that require either good thermal resistance, excellent chemical durability, or high light transmission in combination with
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3486-414: The United States. Corelle Brands manufactures products under names such as: On June 1, 2004, WKI Holding Company, Inc., which operates principally through its subsidiary World Kitchen, Inc., announced that it had completed the sale of OXO International to Helen of Troy Limited for over $ 273 million in cash. In 2018, Corelle Brands discontinued production of Revere Ware and Bakers Secret. Visions
3569-543: The challenge of fabricating the required optic for his Palomar project. A previous effort to fabricate the optic from fused quartz had failed. Corning's first attempt was a failure, the cast blank having voids. Using lessons learned, Corning was successful in the casting of the second blank. After a year of cooling, during which it was almost lost to a flood, in 1935, the blank was completed. The first blank now resides in Corning's Museum of Glass. In 1935, Corning formed
3652-522: The characteristic properties of this glass family are: The softening point (temperature at which viscosity is approximately 10 poise ) of type 7740 Pyrex is 820 °C (1,510 °F). Borosilicate glass is less dense (about 2.23 g/cm ) than typical soda–lime glass due to the low atomic mass of boron. Its mean specific heat capacity at constant pressure (20–100 °C) is 0.83 J/(g⋅K), roughly one fifth of water's. The temperature differential that borosilicate glass can withstand before fracturing
3735-410: The chemical resistance; in this respect, high-borate borosilicate glasses differ widely from non-alkaline-earth and alkaline-earth borosilicate glasses. Among these are also borosilicate glasses that transmit UV light down to 180 nm, which combine the best of the borosilicate glass and the quartz world. Borosilicate glass has a wide variety of uses ranging from cookware to lab equipment, as well as
3818-525: The city of Corning, New York , in 1868, under leadership of the founder's son, Amory Houghton, Jr. In 1915, Corning created an improved heat resistant glass formula and launched Pyrex, the first-ever consumer cooking products made with temperature-resistant glass, in 1915. The California Institute of Technology 's 200-inch (5.1 m) telescope mirror at Palomar Observatory was cast by Corning during 1934–1936, out of low expansion borosilicate glass. In 1932, George Ellery Hale approached Corning with
3901-530: The company sold its appliance business ("Instant" branded products) to Centre Lane Partners. On December 22, 2023 the sales agreement to Centre Lane for Consumers houseware including Pyrex and the Charleroi Pyrex Manufacturing plant was terminated due to: not being able to obtain requisite regulatory approvals. The company emerged from bankruptcy on February 27, 2024 under the previous Corelle Brands moniker. Anchor Hocking took over
3984-420: The company’s products in those regions. Corning spun-off CCPC in 1998 and sold the division to Borden . It acquired General Housewares and Ekco in 1999. As part of the sale to Borden, the company was required to shed the Corning name within three years. The World Kitchen name was adopted in 2000. In 2002 the company filed for bankruptcy under Chapter 11 and underwent financial reorganization. As of 2004, it
4067-505: The data available and found that the most common way that users were injured by glassware was via mechanical breakage, being hit or dropped, and that "the change to soda lime represents a greater net safety benefit." Corning Inc. Corning Incorporated is an American multinational technology company that specializes in specialty glass , ceramics , and related materials and technologies including advanced optics , primarily for industrial and scientific applications. The company
4150-416: The deal have not been disclosed. On June 2, 2020, the company announced Ben Gadbois as the replacement for Kenneth Wilkes, who retired but will continue to serve on the board of directors. On January 28, 2021, CEO Ben Gadbois announced Corelle Brands would change its global parent company name to Instant Brands. On June 12, 2023 Instant Brands filed for chapter 11 bankruptcy. During bankruptcy proceedings,
4233-414: The dot-com market had a major impact on the company, and Corning stock plummeted to $ 1 per share. However, as of 2007 the company had posted five straight years of improving financial performance. The turning point for Corning came when Apple approached it to develop a robust display screen for its upcoming iPhone . Later, other companies also adopted its Gorilla Glass screen. In 2011, Corning announced
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#17327763915814316-458: The early 1990s as part of a larger reorganization and Corning contributed or licensed to the company substantially all of its assets used in the existing consumer division. In November 1994, Corning and the CCPC sold its European , Russian , Middle Eastern and African consumer products businesses to Newell . A major competitor at the time, they would serve as the exclusive distributor for a number of
4399-476: The equivalent, are used to make " crown-glass " eyeglass lenses. Ordinary lower-cost borosilicate glass, like that used to make kitchenware and even reflecting telescope mirrors, cannot be used for high-quality lenses because of the striations and inclusions common to lower grades of this type of glass. The maximal working temperature is 268 °C (514 °F). While it transitions to a liquid starting at 288 °C (550 °F) (just before it turns red-hot), it
4482-644: The expansion of existing facilities and the construction of a Gen 10 facility co-located with the Sharp Corporation manufacturing complex in Sakai, Osaka , Japan. The LCD glass substrate is produced without heavy metals. Corning is a leading manufacturer of the glass used in liquid crystal displays . The company continues to produce optical fiber and cable for the communications industry at its Wilmington and Concord plants in North Carolina. It
4565-438: The heated build platform onto which plastic materials are extruded one layer at a time. The initial layer of build must be placed onto a substantially flat, heated surface to minimize shrinkage of some build materials ( ABS , polycarbonate , polyamide , etc.) due to cooling after deposition. Depending on the material used, the build plate will cycle from room temperature to between 50 °C and 130 °C for each prototype that
4648-463: The iPhone, Apple Watch, and iPad. Though not confirmed by either company, the investment could be used to develop new products in the future. Apple had already invested $ 200 million in Corning in 2017. In November 2024, The European Commission announced that Corning Inc. was under investigation for potential antitrust violations related to exclusive supply agreements with mobile phone manufacturers and raw glass processors, which may hinder competition in
4731-414: The late 1990s during the dot-com boom, and Corning expanded its fiber operations significantly through the acquisition of telecommunications company Oak Industries and building several new plants. The company also entered the photonics market, investing heavily with the intent of becoming the leading provider of complete fiber-optic systems. Failure to succeed in photonics and the collapse in 2000 of
4814-443: The lens. This increases light transmittance through the lens compared to plastics and lower-quality glass. Several types of high-intensity discharge (HID) lamps, such as mercury-vapor and metal-halide lamps , use borosilicate glass as the outer envelope material. New lampworking techniques led to artistic applications such as contemporary glass marbles . The modern studio glass movement has responded to color. Borosilicate
4897-537: The mid-1960s. The company was sold to the conglomerate American Home Products (AHP) in 1965. AHP later split its housewares division into Ekco Products Inc., Ekco Housewares Co., and The Prestige Group Limited; Ekco Housewares was sold to the investment firm Gibbons, Green, Van Amerongen in 1984. The company was sold again to Centronics Corp. in 1987, which then re-branded itself as Ekco Group, Inc. Corning Consumer Products Co. purchased Ekco along with General Housewares Inc. in 1999. Pyrex-branded glass products have been
4980-809: The mid-1980s, the first factory devoted solely to producing colored borosilicate glass rods and tubes for use by artists in the flame. Trautman also developed the techniques and technology to make the small-batch colored boro that is used by a number of similar companies. In recent years , with the resurgence of lampworking as a technique to make handmade glass beads, borosilicate has become a popular material in many glass artists' studios. Borosilicate for beadmaking comes in thin, pencil-like rods. Glass Alchemy, Trautman Art Glass, and Northstar are popular manufacturers, although there are other brands available. The metals used to color borosilicate glass, particularly silver, often create strikingly beautiful and unpredictable results when melted in an oxygen-gas torch flame. Because it
5063-423: The migration of sodium ions from the glass matrix, thus making it well suited for injectable-drug applications. This type of glass is typically referred to as USP / EP JP Type I. Borosilicate is widely used in implantable medical devices such as prosthetic eyes, artificial hip joints, bone cements, dental composite materials (white fillings) and even in breast implants . Many implantable devices benefit from
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#17327763915815146-570: The name became synonymous with borosilicate glass in the English-speaking world (since the 1940s, a sizable portion of glass produced under the Pyrex brand has also been made of soda–lime glass ). Borosilicate glass is the name of a glass family with various members tailored to completely different purposes. Most common today is borosilicate 3.3 or 5.0x glass such as Duran, Corning33, Corning51-V (clear), Corning51-L (amber), International Cookware's NIPRO BSA 60, and BSC 51. Borosilicate glass
5229-491: The next four years to update its Corning plant and expand its workforce. On March 4, 2019, the company announced it had entered into a merger agreement with Instant Brands , maker of the Instant Pot kitchen appliance, and Corelle’s chief executive would become the chief executive of the merged company while Instant Brands founder Robert Wang would become the merged company’s "chief innovative officer". Financial details of
5312-532: The optical system's characteristics. The Hale Telescope's 200 inch mirror is made of borosilicate glass. The optical glass most often used for making instrument lenses is Schott BK-7 (or the equivalent from other makers, such as the Chinese crown glass K9 ), a very finely made borosilicate crown glass . It is also designated as 517642 glass after its 1.517 refractive index and 64.2 Abbe number . Other less costly borosilicate glasses, such as Schott B270 or
5395-515: The plastic contracts as it cools, while the glass remains relatively dimensionally unchanged due to the low coefficient of thermal expansion , provides a convenient aid in removing the otherwise mechanically bonded plastic from the build plate. In some cases the parts self-separate as the developed stresses overcome the adhesive bond of the build material to the coating material and underlying plate. Aquarium heaters are sometimes made of borosilicate glass. Due to its high heat resistance, it can tolerate
5478-610: The primary mirror in the Hubble Space Telescope . In 1982, Corning launched Chameleon ® Sunglasses and Serengeti ® sunglasses at retail, featuring the exclusive combination of Photochromic and Spectral Control ® technologies in the lenses. In July 2008, Corning announced the sale of Steuben Glass Works to Steuben Glass LLC, an affiliate of the private equity firm Schottenstein Stores Corporation . Steuben Glass had been unprofitable for more than
5561-478: The product geometry and can be differentiated between different methods like floating , tube drawing , or molding . The common type of borosilicate glass used for laboratory glassware has a very low thermal expansion coefficient (3.3 × 10 K ), about one-third that of ordinary soda–lime glass. This reduces material stresses caused by temperature gradients, which makes borosilicate a more suitable type of glass for certain applications (see below). Fused quartzware
5644-478: The range (4.0–5.0) × 10 K . This is not to be confused with simple borosilicate glass-alumina composites. Glasses containing 15–25% B 2 O 3 , 65–70% SiO 2 , and smaller amounts of alkalis and Al 2 O 3 as additional components have low softening points and low thermal expansion. Sealability to metals in the expansion range of tungsten and molybdenum and high electrical insulation are their most important features. The increased B 2 O 3 content reduces
5727-562: The significant temperature difference between the water and the nichrome heating element . Specialty glass smoking pipes for cannabis and tobacco can be made from borosilicate glass. The high heat resistance makes the pipes more durable. Some harm reduction organizations also give out borosilicate pipes intended for smoking crack cocaine , as the heat resistance prevents the glass from cracking, causing cuts and burns that can spread hepatitis C . Most premanufactured glass guitar slides are made of borosilicate glass. Borosilicate
5810-845: The small radius bending found in FTTX installations. Gorilla Glass, an outgrowth of the 1960s Chemcor project, is a high-strength alkali- aluminosilicate thin sheet glass used as a protective cover glass offering scratch resistance and durability in many touchscreens. According to the book Steve Jobs by Walter Isaacson, Gorilla Glass was used in the first iPhone released in 2007. On October 25, 2011, Corning unveiled Lotus Glass , an environmentally friendly and high-performance glass developed for OLED and LCD displays. Corning invests about 10% of revenue in research and development , and has allocated US$ 300 million towards further expansion of its Sullivan Park research facility near headquarters in Corning, New York. Corning Incorporated manufactures
5893-424: The specialty glass market. Corning employs roughly 61,200 people worldwide and had sales of $ 14.08 billion in 2021. The company has been listed for many years among Fortune magazine's 500 largest companies, and was ranked #297 in 2015. Although the company has long been publicly owned, James R. Houghton , great-great-grandson of the founder, served as chairman of the board of directors from 2001 to 2007. Over
5976-421: The subject of urban legends and safety concerns. Beginning in the 1980s, production of clear Pyrex glass bakeware was switched from a more thermally resistant borosilicate glass to mechanically stronger soda-lime glass. The concern stems from the fact that soda-lime glass is more susceptible to breaking when exposed to sudden temperature differences. This change received greater attention after Corning, Inc. spun-off
6059-447: The unique advantages of borosilicate glass encapsulation. Applications include veterinary tracking devices , neurostimulators for the treatment of epilepsy, implantable drug pumps, cochlear implants , and physiological sensors. During the mid-20th century, borosilicate glass tubing was used to pipe coolants (often distilled water ) through high-power vacuum-tube –based electronic equipment, such as commercial broadcast transmitters. It
6142-438: The unique process to manufacture this automotive glass was resurrected and is today the basis of their very profitable LCD glass business. In the fall of 1970, the company announced that researchers Robert D. Maurer, Donald Keck, Peter C. Schultz, and Frank Zimar had demonstrated an optical fiber with a low optical attenuation of 17 dB per kilometer by doping silica glass with titanium . A few years later they produced
6225-407: The visible range). For the purposes of classification, borosilicate glass can be roughly arranged in the following groups, according to their oxide composition (in mass fractions ). Characteristic of borosilicate glasses is the presence of substantial amounts of silica (SiO 2 ) and boric oxide (B 2 O 3 , >8%) as glass network formers. The amount of boric oxide affects the glass properties in
6308-530: The years Houghton family ownership has declined to about 2%. Wendell P. Weeks has been with the company since 1983 and as of March 2013 was chairman, chief executive officer, and president. Over its 160-year history Corning invented a process for rapid and inexpensive production of light bulbs , including developing the glass for Thomas Edison 's light bulb. Corning was the glass supplier for lightbulbs for General Electric after Edison General Electric merged with Thomson-Houston Electric Company in 1892. It
6391-573: Was a subsidiary brand of Corelle Brands. Originally introduced in 1958, Corning Ware was made in the US from a glass-ceramic material called Pyroceram which was able to withstand temperatures as high as 850 °C. Due to its high thermal shock resistance, Corning Ware could be used to store food in a freezer and then taken directly to a stove, placed under a broiler or in an oven (both conventional and microwave). Lids have typically been made out of Pyrex (both Borosilicate and Soda-lime glass ) though some versions were also created out of Pyroceram. It
6474-418: Was also used for the envelope material for glass transmitting tubes which operated at high temperatures. Borosilicate glasses also have an application in the semiconductor industry in the development of microelectromechanical systems (MEMS), as part of stacks of etched silicon wafers bonded to the etched borosilicate glass. Cookware is another common usage for borosilicate glass, including bakeware. It
6557-413: Was an early major manufacturer of glass panels and funnels for television tubes, invented and produced Vycor (high temperature glass with high thermal shock resistance). Corning invented and produced Pyrex , CorningWare and Visions Pyroceram glass-ceramic cookware, and Corelle durable glass dinnerware. Corning manufactured the windows for US crewed space vehicles , and supplied the glass blank for
6640-575: Was considered a steep loss in profit and productivity. The following year the project made a partial recovery. This incident has been cited as a case study by the Harvard School of Business. In 1998, the kitchenware division of Corning Inc. responsible for the development of Pyrex spun off from its parent company as Corning Consumer Products Company, subsequently renamed Corelle Brands. Corning Inc. no longer manufactures or markets consumer products, only industrial ones. Company profits soared in
6723-516: Was discontinued in 2003, replaced by a stoneware line of bakeware made in China under the same name. In December 2008, the company released CorningWare StoveTop. It reintroduced the original Pyroceram product, this time made in France alongside Visions, and made available for purchase through its outlet stores and retail website. The factory in France, which produces both CorningWare StoveTop and Visions,
6806-497: Was named Corning Glass Works until 1989. Corning divested its consumer product lines (including CorningWare and Visions Pyroceram -based cookware, Corelle Vitrelle tableware, and Pyrex glass bakeware) in 1998 by selling the Corning Consumer Products Company subsidiary (later Corelle Brands ) to Borden . As of 2014 , Corning had five major business sectors: display technologies, environmental technologies, life sciences, optical communications, and specialty materials. Corning
6889-596: Was privately held. Kenneth Wilkes was named president and CEO in August 2017, following a change in control in April to private equity firm Cornell Capital. that was preceded by a long period of organizational changes and operational restructuring. On February 5, 2018, the company announced it had changed its name to "Corelle Brands" in order to take advantage of one of its most recognizable trademarks. In August 2018, Corelle Brands announced it would be investing $ 50 million over
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