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GE began production under the name Lexan in 1960, creating the GE Plastics division in 1973. [29] After 1970, the original brownish polycarbonate tint was improved to "glass-clear". Polycarbonate recycling code PC on the bottom of a 5 gallon water jug made by Greif, Inc.
Dr. Daniel W. Fox and LEXAN polycarbonate. Dr. Daniel W. Fox (May 14, 1927 – February 15, 1989) was an American polymer chemist who is often regarded as the father of LEXAN. LEXAN is the flagship product of SABIC Innovative Plastics (formerly GE Plastics) and is used in everything from CDs and
Lexan: Polycarbonate resin thermoplastic glass SABIC [149] Liquid Paper: Correction fluid: Newell Brands: A white liquid applied with a brush used to hide mistakes, written or typed, with ink so they can be overwritten. (Australia, see also Wite-Out in the US Tipp-Ex in the UK and Ireland) [150] Mace: Pepper spray: Mace Security International ...
A polycarbonate is an oxocarbon dianion consisting of a chain of carbonate units, where successive carbonyl groups are directly linked to each other by shared additional oxygen atoms. That is, they are the conjugate bases of polycarbonic acids , the conceptual anhydrides of carbonic acid , or polymers of carbon dioxide .
Although single layer polycarbonate sheeting is more flexible than polycarbonate in twinwall configuration, it still retains significant advantages over alternative materials, including glass. A typical 6mm sheet has a density of 0.72 g/cm^2 [6] and a thermal insulation R value of 0.3 m^2°C/W, while allowing 80% of visible light pass through. [7]
Solvent bonding differs from other plastic welding processes in that heating energy is generated by the chemical reaction between the solvent and thermoplastic, and cooling occurs during evaporation of the solvent. [5] Solvent bonding can be performed using a liquid or gaseous solvent.
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