| 摘要 |
<p>1,237,521. Aluminium laminates. GENERAL ELECTRIC CO. 17 Jan., 1969 [19 Jan., 1968], No. 2789/69. Heading B5N. [Also in Division C3] Sheet materials, e.g. of aluminium, are laminated by interposing between the sheets and heating under pressure a curable composition comprising 100 parts by weight of a vinyl or vinylidene polymer and 0À1 to 50 parts by weight of a reaction product of an unsaturated monocarboxylic acid of formula where R<SP>1</SP> is H, C 1-8 alkyl, halogen or an aromatic radical, R<SP>11</SP> is C 1-3 alkylene and m is 0 or 1, and an epoxy resin, optionally together with organic peroxide curing agents, fillers and pigments, stabilizers and lubricants. Specified components include polyethylene, polypropylene, polyisobutylene, polystyrene, ethylene/ propylene and ethylene/propylene/butylene copolymers, polyvinyl chloride, polyvinylidene chloride and polyvinyl acetate; reaction products of acrylic, methacrylic, α-phenylacrylic, α- chloroacrylic and vinylacetic acids with condensates of epichlorohydrin with Bisphenol A, 4,4<SP>1</SP> - dihydroxydiphenylsulphone, 4,4<SP>1</SP> - dihydroxydiphenyl, 4,4<SP>1</SP> - dihydroxydiphenylmethane, 2,2<SP>1</SP> - dihydroxydiphenyloxide, novolac resins and tetraphenylol ethane, dicyclohexane diepoxide carboxylate, vinyl cyclohexene dioxide, and dipentene dioxide; and ground ceramics, titanium dioxide, silica, mica, clays, carbon black, calcium carbonate, fibrous magnesium silicate, quartz, cryolite, Portland cement and iron, copper and aluminium powders. In examples sand-blasted, degreased aluminium sheets, which may be treated with a release agent, are laminated with compositions comprising (2, 4, 8 and 12) polyethylene, titanium dioxide and methacrylic acid reaction products with epichlorohydrin/Bisphenol A condensate (MAEP), together with (5, 6, 10 and 14) dicumyl peroxide; (15) ethylene/butene copolymer, crushed quartz and MAEP, together with (16) dicumyl peroxide; (17) ABS terpolymer, crushed quartz and MAEP, together with (18) dicumyl peroxide; (21) ethylene/propylene/ hexadiene-1,4 terpolymer, titanium dioxide and MAEP, together with (22) dicumyl peroxide; (24 and 25) polyethylene, polyvinyl chloride, MAEP and dicumyl peroxide; (26-29) polyethylene, crushed quartz and MAEP; (31) ethylene/butene copolymer, titanium dioxide, MAEP and dicumyl peroxide; acrylic acid/ epoxy novolac condensate, dicumyl peroxide and (32) polyethylene and titanium dioxide and (33) polyvinyl chloride and chlorinated polyethylene; (34) polyethylene, acrylic acid/ dicyclohexane diepoxide carboxylate condensate, titanium dioxide and dicumyl peroxide; and MAEP, dicumyl peroxide and (36) polyvinyl chloride and (38) polyethylene.</p> |
