PROTECTION OF ORGANIC SUBSTANCES AGAINST UV RADIATION
1,244,785. Ultraviolet stabilization of polymers. FARBENFABRIKEN BAYER A.G. 30 Sept., 1969 [4 Oct., 1968], No. 48057/69. Heading C3R. Synthetic organic polymers are stabilized against the effects of ultraviolet light by incorporating up to 5% by weight of a compound of formula in which R individuall...
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Zusammenfassung: | 1,244,785. Ultraviolet stabilization of polymers. FARBENFABRIKEN BAYER A.G. 30 Sept., 1969 [4 Oct., 1968], No. 48057/69. Heading C3R. Synthetic organic polymers are stabilized against the effects of ultraviolet light by incorporating up to 5% by weight of a compound of formula in which R individually denotes an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical and the ring A may contain further substituents, including halogen, alkyl or alkoxy radicals. Polymers mentioned include polystyrene, polyacrylonitrile, polyacrylates and their copolymers, polydienes, e.g. polybutadiene, polyvinyl chloride, polyvinylidene chloride, polypropylene, polyethylene polyesters, e.g. polyethylene terephthalate, polycarbonates, polyamides, e.g. polycaprolactam, polyurethanes, polyethers and polysulphones. |
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