Abstract: Process for the removal of residual monomers from ABS polymers prepared by emulsion polymerization, wherein from 0.1 to 10% by weight, based on the solids content in the latex, of an electrolyte such as an acid or a salt are added to a latex containing an ABS polymer, and the mixture is at the same time heated to a temperature of from 55.degree. to 120.degree. C. while the residual monomer and part of the water are removed by distillation.

Abstract: The toughness of polybutylene terephthalate can be considerably improved by the addition of an ABS-graft copolymer having a relatively high content of graft base and a closely defined particle size; the typical properties of polybutylene terephthalate, such as its high dimensional heat stability, hardness and rigidity, are not substantially reduced. The products show an excellent multiaxial impact strength.

Abstract: Thermoplastic moulding compositions of(1) 75 to 99 parts by weight of vinyl chloride polymers containing from 1 to 10% by weight of ethylene vinyl ester copolymers, and(2) 1 to 25 parts by weight of graft polymers of styrene and/or methyl methacrylate or of styrene and acrylonitrile and, optionally, methyl methacrylate on an ethylene-propylene terpolymer rubber.

Abstract: Thermoplastic moulding compositions of(A) 20 to 99 parts by weight of a vinyl chloride homopolymer or copolymer containing at least 80% by weight of vinyl chloride and having K-values of from 50 to 80,(B) 80 to 1 part by weight of a graft polymer produced by the solution polymerization in an organic solvent of(a) styrene and/or methyl methacrylate or(b) styrene and acrylonitrile and, optionally, methyl methacrylatein the presence of an EPDM rubber.

Abstract: Thermoplastic moulding compositions with improved notched impact strength consisting of a polyamide and a graft product of polybutadiene or copolymers of butadiene as graft substrate and of a mixture of an ester of (meth)acrylic acid, (meth)acrylonitrile and/or (meth)acrylamide as graft monomers.

Abstract: Mixtures of(1) 99 to 1% of one or more segment copolymers of alternating linear or branched segments A and B wherein A are polymer blocks of aromatic vinyl compounds with Tg>20.degree. C. (hard segment) and B are polymer blocks containing polymerized conjugated dienes with Tg>0.degree. C. (soft segment), and(2) 1 to 99% of one or more aromatic polycarbonates in which the linear chains consist to an extent of at least 50% of structural units of the formula ##STR1## wherein X=C.sub.1 -C.sub.5 alkylene or alkylidene.

Abstract: A thermoplastic moulding composition comprising:(1) 80 to 20 parts by weight of a thermoplastic polycarbonate based on a dihydroxy diarylalkane,(2) 0 to 60 parts by weight of a graft copolymer of a(2.2) monomer mixture of(2.2.1) 95 to 50% by weight of styrene, methyl methacrylate or a mixture thereof; and(2.2.2) 50 to 5% by weight of acrylonitrile, methacrylonitrile or a mixture thereof,polymerized onto(2.1) a rubber which has a glass temperature below -20.degree. C., and which contains less than 30 C.dbd.C-double bonds per 1,000 carbon atoms, the moulding composition containing from 0 to 35% by weight of the rubber (2.1), and(3) 5 to 75 parts by weight of a copolymer which is chemically uniform in structure and comprises:(3.1) 95 to 50% by weight of styrene, methyl methacrylate or a mixture thereof;(3.2) 40 to 5% by weight of acrylonitrile, methacrylonitrile or a mixture thereof; and(3.3) 2 to 30% by weight of maleic acid anhydride, the sum of 3.1, 3.2 and 3.3 being equal to 100% by weight.

Abstract: A thermoplastic moulding composition comprising a polymer mixture of (A) 25 to 95% by weight of a graft polymer of 70 to 30% by weight of a mixture of styrene (95 to 50% by weight) and acrylonitrile (5 to 50% by weight) on 30 to 70% by weight of polybutadiene or a butadiene-styrene copolymer, and (B) 5 to 75% by weight of a terpolymer containing 10 to 30 parts by weight of acrylonitrile, 7.5 to 15 parts by weight of maleic acid anhydride, and 82.5 to 55 parts by weight of styrene in copolymerized form.

Abstract: A thermoplastic molding composition having improved flow, toughness. and heat distortion comprising a polymer mixture of (A) 25 to 95% by weight of a graft polymer of 70 to 30% by weight of a mixture of styrene (95 to 50% by weight) and acrylonitrile (5 to 50% by weight) on 30 to 70% by weight of an EPDM-rubber, and (B) 50 to 75% by weight of a terpolymer of acrylonitrile, maleic acid anhydride and styrene, the terpolymer containing 10 to 30 parts by weight of acrylonitrile, 7.5 to 15 parts by weight of maleic acid anhydride, and 82.5 to 55 parts by weight of styrene in copolymerised form.

Abstract: Thermoplastic moulding compositions ofA. 65 to 95% by weight polyvinyl chloride or vinyl chloride copolymer having K-values of 50 to 80,B. 2 to 25% by weight of a chlorinated polyolefin or of a chlorinated olefin copolymer with a chlorine content of 20 to 80% by weight,C. 3 to 30% by weight of a graft polymer produced by grafting styrene or styrene and acrylonitrile and optionally copolymerizable monomers onto an EPDM rubber as graft base.

Abstract: Moulding compositions based on ABS-graft polymers, containing:A. 5 to 70 parts, by weight of a graft polymer obtained by grafting 20 to 60 parts by weight of a mixture of styrene and acrylonitrile in a ratio, by weight, of 95 : 5 to 60 : 40 onto 80 to 40 parts, by weight, of polybutadiene or a butadiene copolymer with a butadiene content of > 30% with an average particle diameter of 0.26 to 0.65 .mu. and a grafting degree of 0.15 to 0.7;B. 0 to 50 parts, by weight, of a graft polymer obtained by polymerizing 40 to 60 parts, by weight, of a mixture of styrene and acrylonitrile in a ratio, by weight, of 95 : 5 to 60 : 40 onto 60 to 40 parts, by weight, of polybutadiene or a butadiene copolymer with a butadiene content of more than 30%, with an average particle diameter of from 0.05 to 0.25 .mu. and a grafting degree of 0.4 to 0.9; andC. 25 to 95 parts, by weight, of a copolymer of styrene and/or .alpha.

Abstract: Moulding compositions containingA. 6 to 30 parts by weight of graft polymer obtained by grafting 20 to 60 parts by weight of a mixture of styrene and acrylonitrile in a ratio by weight of 95 : 5 to 60 : 40 onto 80 to 40 parts by weight of polybutadiene or a butadiene copolymer with a butadiene content of at least 30% with an average particle diameter of 0.26 to 0.65.mu. and a grafting degree of 0.15 to 0.7;B. 14 to 45 parts by weight of a graft polymer obtained by polymerizing 40 to 60 parts by weight of a mixture of styrene and acrylonitrile in a ratio by weight of 95 : 5 to 60 : 40 onto 60 to 40 parts by weight of polybutadiene or a butadiene copolymer with a butadiene content of at least 30%, with an average particle diameter of 0.05 to 0.25.mu. and a grafting degree of 0.4 to 0.9; andC. 25 to 80 parts by weight of a copolymer of styrene and/or .alpha.

Abstract: A transparent moulding composition comprising a bisphenol polycarbonate having a low refractive index due to a content of alkyl substitution and a rubber and/or a resin.