| abstract |
1313132 Thermoplastic resin compositions MONSANTO CO 13 Sept 1971 19071/69 Headings C3F C3G C3P and C3R Thermoplastic resin compositions comprise a thermoplastic material which is a vinyl aromatic resin, a polymer including units of butadiene and acylonitrile, a vinyl halide polymer, a nylon, a polycarbonate resin, polyvinyl acetate, a cellulose ether, a cellulose ester of a C 2 -C 4 organic acid, a polymer of a C 2 -C 24 alpha mono-olefin or a polymer of methyl methacrylate, and substantially uniformly dispersed through the thermoplastic material, as a lubricant additive, an acrylic polymer that is a liquid at 30 C. and which is either (a) a homopolymer of a C 1 -C 24 -alkyl acrylate or (b) a copolymer of (i) 95-5% by weight of a C 3 -C 24 -alkyl acrylate and (ii) 5-95% by weight of a dissimilar C 1 -C 12 -alkyl acrylate, the acrylic polymer being present in an amount of from 0À001 to 4À0 parts by weight per 100 parts by weight of thermoplastic material. The compositions can be formed into shaped articles by calendering, blow moulding, injection moulding, casting or extrusion and may optionally contain additives such as other polymers, glass fibres, ground asbestos, mica, dyes, pigments, plasticizers, reinforcing materials and stabilizers. In examples the following thermoplastic materials are used: polyvinyl chloride, acrylonitrile-butadiene-divinylbenzene copolymer, styrene copolymers, ethylene - propylene - 1 - ethylidene norbornene copolymer, ethylene copolymers, polystyrene, polyethylene, graft copolymer of vinyl chloride on chlorinated polyethylene, vinyl chloride copolymers, cellulose acetate butyrate, polymethyl methacrylate, polycarbonates of bis-(4-hydroxyphenyl)-propanes or -cyclohexane, polyvinyl acetate, ethyl cellulose, cellulose propionate, polypropylene, polyhexamethylene adipamide, polycaprolactam, methyl methacrylate copolymers, poly - (alpha - methyl styrene), poly- (4-methylpentene-1) and poly-(octadecene-1). |