Patent GB-960506-A (GB)
Title: Vinyl chloride polymer compositions
Inventor: GOULD REX WILLIAM
IPC: C08K5/02
Filed: 1962-04-12
Abstract: Flexible and compatible compositions suitable for extrusion or moulding comprise (i) a copolymer of vinyl chloride with 1 to 15% by weight of the copolymer of copolymerizable monomeric material, (ii) as plasticizer a compatible amount of a chlorinated aliphatic substantially straight chain hydrocarbon containing 12 to 22 carbon atoms per molecule and at least 40% by weight of chlorine, or a mixture of aliphatic substantially straight chain hydrocarbons having an average number of carbon atoms in the range 12 to 22 and in which essentially all the hydrocarbons contain at least 9 carbon atoms and which has been chlorinated to a chlorine content of at least 40% by weight, (iii) 0 to 20% by weight of the chlorinated hydrocarbons of a substance which is normally a plasticizer for the vinyl chloride copolymer and (iv) 0 to 100% by weight of the copolymer of a filler. Preferred chlorinated hydrocarbons contain 12 to 20 carbon atoms, especially 13 to 17 carbon atoms, and 50 to 55% by weight of chlorine. Specified comonomers are vinyl and isopropenyl alkyl ethers, vinylidene chloride, methyl acrylate, ethyl acrylate, methyl methacrylate, dimethyl maleate, diethyl maleate, dimethyl fumarate, diethyl fumarate, vinyl acetate, vinyl caproate and vinyl stearate. Specified conventional plasticizers are phthalates, adipates, azelates, sebacates, phosphates, epoxidised oils and epoxy resins. Specified fillers are chalk, clay, chopped glass fibres, metals, metal oxides, carbon black and wood flour. The compositions may also comprise stabilizers, pigments, lubricants and mould release agents. Examples describe compositions comprising chlorinated hydrocarbons and (I) a vinyl chloride-vinyl acetate copolymer and barium/cadmium laurate; (II) a vinyl-chloride-vinylidene chloride copolymer, barium/cadmium stabilizer, epoxidised soya bean oil, stearic acid and carbon black; (III) a vinyl chloride-ethyl acrylate copolymer, cadmium stearate, epoxidised soya bean oil and cadmium red pigment; (IV) a vinyl chloride-vinyl acetate copolymer, calcium carbonate, basic lead carbonate, calcium stearate, titanium dioxide and carbon black; (V) a vinyl chloride-vinyl acetate copolymer, diisooctyl sebacate, chalk basic lead carbonate and calcium stearate; (VI) and (VII) a vinyl chloride-vinyl acetate copolymer, basic lead carbonate, calcium stearate and paraffin wax; (VIII) a vinyl chloride-vinyl acetate copolymer, barium/cadmium laurate and epoxidised soya bean oil; (IX) a vinyl chloride-vinyl acetate copolymer, chalk, basic lead carbonate and calcium stearate; (X) a vinyl chloride-vinylidene chloride copolymer, di C7-9 alkyl sebacate, basic lead carbonate, calcium stearate, titanium dioxide and phthalocyanine blue; (XII) a vinyl chloride-vinyl acetate copolymer, barium/cadmium stabilizer and epoxidised soya bean oil; (XIII) a vinyl chloride-vinyl acetate copolymer, chalk, lead stabilizer, calcium stearate and paraffin wax; and (XIV) a vinyl chloride-ethyl acrylate copolymer and calcium stearate.  The compositions may be extruded or injection moulded, used in plastisols, for slush moulding and rotational casting and knife-coating.  They may be used to make shoes, channeling, pipes and hoses, cable insulation, decorative belting, draught excluders, sachets for shampoos, collapsible tubes, torch cases, grommets and leather cloth.