摘要:
Polymer mixtures of a special graft polymer based on acrylate rubber, a special rubbery acrylate copolymer, resin-type vinyl polymers and polyesters containing carbonate groups and their use in manufacturing flexible (leather-type) sheets.
摘要:
Graft polymers having graft shells of copolymers of styrenes, .alpha.-methyl styrenes, acrylonitrile, C.sub.1 -C.sub.4 vinyl carboxylic acids, C.sub.1 -C.sub.8 alkyl acrylates and/or alkyl methacrylates, maleic acid derivatives, vinyl(idene) chloride and mixtures thereof on the one hand and monomers corresponding to formula I ##STR1## in which R.sup.1 =H, CH.sub.3,R.sup.2 =C.sub.1 -C.sub.8 alkylene,R.sup.3 =C.sub.1 -C.sub.4 alkylon the other hand andgraft bases of particulate diene and/or acrylate rubbers having particle diameters (d.sub.50) of from 80 to 800 nm, and thermoplastic molding compounds containing these graft polymers.
摘要:
The present invention is directed to a thermoplastic composition which is a blend of A) a thermoplastic polyurethane and B) an at least partly crosslinked alkyl acrylate copolymer of a C.sub.1-6 alkyl acrylate and a monomer selected from the group consisting of acrylonitrile, styrene, vinyl acetate, C.sub.1-6 alkyl methacrylates and mixtures thereof. The preferred compositions also contain copolymer selected from the group consisting ofC1) a thermoplastic graft product of a rubber component having a glass transition temperature below 0.degree. C., which serves as the graft base, and at least one graft monomer selected from the group consisting of styrene, .alpha.-methyl styrene, acrylonitrile an C.sub.1-6 alkyl methacrylate,C2) a rubber-free resin copolymer of styrene or .alpha.-methyl styrene with acrylonitrile,C3) mixtures thereof.
摘要:
Polymer mixtures of acrylate graft rubbers, certain special acrylate copolymers and optionally resinous vinyl polymers, containing special oxetanyl group-containing phosphites, have improved thermostability and are suitable inter alia for the fabrication of films.
摘要:
Process for the preparation of mixtures of thermoplastic polymers in powder form from aqueous emulsions ofa) particulate, partly crosslinked rubber-like copolymers of a C.sub.2 -C.sub.8 -alkyl acrylate and/or butadiene with (based on the copolymer) up to 40 wt. % acrylonitrile, styrene or C.sub.1 -C.sub.4 -alkyl methacrylate,b) a thermoplastic resin, and if appropriatec) a rubber-rich graft polymer of styrene, .alpha.-methylstyrene, acrylonitrile, methyl methacrylate and/or alkyl acrylate on a diene or alkyl acrylate rubber having a rubber content of 50 to 95 wt. %,wherein aqueous emulsions of a) and b) and if appropriate c) having polymer contents of 15 to 50 wt. % are mixed with a coagulate solution simultaneously, but in separate streams, continuously or semi-continuously at 20.degree. to 100.degree. C., the polymers a) and b) and if appropriate c) being coagulated, the streams are combined and the polymer mixture is then separated off.
摘要:
A film-forming composition comprises from 0.1-8% by weight of an oligomeric polyglycidyl ether or ester and a polymer mixture ofa) a graft polymer prepared by polymerizing a monomer mixture of acrylonitrile, and alpha-methylstyrene and/or an alkylmethacrylate; or methylmethacrylate optionally with other monomers, onto cross-linked alkylacrylate rubber particles;b) a partially cross-linked rubber-like copolymer derived from an alkylacrylate and other monomers;c) an uncross-linked polymer of styrenes, (meth)acrylonitrile, (meth)acrylic acid esters and/or vinyl carboxylic acids; and optionallyd) a graft polymer obtained from the polymerization of a mixture of acrylonitrile, and styrenes and/or an alkylmethacrylate; or methylmethacrylate optionally with other monomers, onto cross-linked alkylacrylate rubber particles.
摘要:
Polymer alloys containing resin-like polymers of monomers corresponding to formula (I) ##STR1## in which R.sup.1 =H, CH.sub.3,R.sup.2 =C.sub.1-8 alkylene,R.sup.3 =C.sub.1-4 alkyl,and, optionally, other typical vinyl monomers and thermoplastic polymers or graft polymers.
摘要翻译:含有对应于式(I)的单体的树脂状聚合物的聚合物合金其中R 1 = H,CH 3,R 2 = C 1-8亚烷基,R 3 = C 1-4烷基和任选地其它典型的乙烯基 单体和热塑性聚合物或接枝聚合物。
摘要:
A polymer mixture of(a) 45 to 50 parts by weight of a graft product of a mixture of 25 to 40 parts by weight acrylonitrile and 75 to 60 parts by weight styrene, .alpha.-methylstyrene, alkylmethacrylate or mixtures thereof on a particulate, highly crosslinked diene rubber having a rubber content of 20 to 40% by weight,(b) 45 to 10 parts by weight of a graft product of a mixture of 20 to 35 parts by weight acrylonitrile and 80 to 65 parts by weight styrene or .alpha.-methylstyrene on a particulate, highly crosslinked diene rubber having a rubber content of 50 to 75% by weight, the graft yield being greater than 60% by weight,(c) 10 to 50 parts by weight of a particulate, partially crosslinked, rubber-like copolymer of a C.sub.2 -C.sub.8 alkylacrylate and/or butadiene containing up to 40% by weight (based on copolymer) acrylonitrile which has an average particle diameter (d.sub.50) of from 0.1 to 0.3 .mu.m and a gel content of 40 to 99% by weight and(d) optionally up to 5 parts by weight of a high molecular weight, uncrosslinked copolymer of styrene or methylmethacrylate and up to 40% by weight acrylonitrile having an intrinsic viscosity [.eta.] (in dimethylformamide at 20.degree. C. of >4 dl/g,a process for its production and its use as an additive in polyvinyl chloride molding compositions.
摘要:
Polymer blends of(a) graft polymers of vinyl monomers on an alkyl acrylate rubber(b) a partly crosslinked acrylate-based copolymer rubber(c) a resin-like copolymer(d) an ethylene/vinyl acetate copolymer,a process for their production and their use as thermoplastic molding compounds.