Abstract: 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.

Abstract: Polymer mixtures ofa. 10 to 60 parts by weight of a graft polymer,b. 10 to 50 parts by weight of a partially cross-linked, rubber like copolymer of from 5 to 40% by weight of acrylonitrile, styrene, alkyl methacrylate or mixtures thereof and from 95 to 60% by weight of alkyl acrylate having a gel content of from 20 to 99% by weight,c. 5 to 40 parts by weight of an uncross-linked polymer of styrenes, .alpha.-methyl styrenes, acrylonitrile, methacrylonitrile, esters of acrylic acid or methacrylic acid, vinyl C.sub.1 to C.sub.4 carboxylic acids or mixtures of these monomers having Staudinger Indices (.eta.) (determined in dimethyl formamide at 23.degree. C.) of from 0.3 to 1.5 dl/g andd. 1 to 45 parts by weight of a polymer of a cyclic aliphatic ester or of an aliphatic cyclic ester and an aliphatic cyclic carbonate.

Abstract: Thermoplastic molding compositions comprising mixtures ofa) 1-99 wt. % of a specific polycarbonate based on dihydroxydiphenylcycloalkanes,b) 1-99 wt. % of other polycarbonate, in particular those based on bisphenol A, andc) 1-95 wt. % of a silicone rubber, in particular silicone graft rubbers,having improved thermal resistance and being suitable for the preparation of shaped articles, and a process for their preparation are being disclosed.

Abstract: Stabilizing, synergistically acting mixtures of phenolic antioxidants and sulphur-containing elastic-thermoplastic graft products having terminal thioalkyl groups.

Abstract: The subject of the invention is flameproofed, non-dripping polyamide moulding compounds which contain specific amounts of the following:A) Phosphinic acid esters of polyphenols based on phenolaldehyde/ketone condensates,B) Anti-dripping agents (such as polyfluoroethylene polymers or aramides),C) Zinc borate,D) Thermoplastics with a predominantly aromatic main chain and a high thermal deflection temperature (Vicat B.gtoreq.180.degree. C.),and, if applicable, reinforcing agents and other additives for flameproofing and processing.

Abstract: The invention relates to powder-form polymer mixtures of silicone resins (B) and thermoplastic polymers (A), to their production and to their use for the modification of thermoplatics.

Abstract: Reaction products of 1 mol of a cycloaliphatic diol corresponding to formula IHO--R--OH Iwith 2 mols cycloaliphatic carboxylic anhydrides corresponding to formulae II and/or III ##STR1## in which R is a cycloaliphatic hydrocarbon radical having 6 to 20 carbon atoms onto which the hydroxy groups are bonded directly or via methylene groups and X represents ##STR2## chemical bond --obtainable obtainable by fusion of the cycloaliphatic diol and the cycloaliphatic carboxylic anhydride in an inert gas atmosphere at temperatures of from 100.degree. C. to 250.degree. C., and the alkali and ammonium salts of these reaction products, and their use as emulsifiers.

Abstract: Copolymers of blocks of polymers of cyclic aliphatic carbonates, cyclic aliphatic esters or cyclic aliphatic carbonates and cyclic aliphatic esters on the one hand and blocks of polymers of cyclic aromatic carbonates on the other hand and a process for their production by multistage polymerization, in which a block polymer is initially prepared from the aliphatic monomer and the aromatic polymer is produced in the presence of this block.

Abstract: Thermoplastic moulding compounds containingA. 5 to 99 parts by weight of aromatic, high deflection temperature poly(ether sulphone),B. 5 to 95 parts by weight of alpha-methylstyrene polymer andC. 1 to 95 parts by weight of graft polymer of resin-forming monomers on a rubber,a process for their production and their use for the production of mouldings.

Abstract: Thermoplastic block copolymers of the idealized formulae (I)A--B--A; B--A--B or (A--B).sub.x (I)in whichx=1 to 40,and whereinA is the radical of a homopolymer of styrene, vinylnaphthalene, butadiene and isoprene, andB the radical of a homopolymer of a cyclic polycarbonate or lactone,the average molecular weight of blocks A and B being greater than 800, and a process for the preparation of these blocks copolymers in several reaction stages.

Abstract: Reaction products of 1 mol of a cycloaliphatic diol corresponding to formula IHO--R--OH Iwith 2 mols cycloaliphatic carboxylic anhydrides corresponding to formulae II and/or III ##STR1## in which R is a cycloaliphatic hydrocarbon radical having 6 to 20 carbon atoms onto which the hydroxy groups are bonded directly or via methylene groups andX represents ##STR2## chemical bond obtainable by fusion of the cycloaliphatic diol and the cycloaliphatic carboxylic anhydride in an inert gas atmosphere at temperatures of from 100.degree. C. to 250.degree. C., and the alkali and ammonium salts of these reaction products, and their use as emulsifiers.

Abstract: This invention relates to thermostable thermoplastic moulding compounds consisting of a thermoplastic aromatic polycarbonate resin, a graft polymer and optionally a thermoplastic vinyl polymer wherein the graft or vinyl polymer is emulsion polymerized with an emulsifier which is the reaction product of 2 mols of certain carboxylic anhydrides and 1 mole of certain diols.

Abstract: Thermoplastic moulding compounds composed of99.8-95% by weight of A) 0-100% by weight of a graft polymer B) 100-0% by weight of a thermoplastic polymer of vinyl monomers and0.2 to 5% by weight of a polyalkylene ether which has been grafted with a polymer of C.sub.1 -C.sub.6 alkyl acrylates, cycloalkyl acrylates or methacrylates and optionally styrene or .alpha.-methyl styrene.

Abstract: This invention relates to aliphatic polycarbonates including sequential copolymers based on cyclic aliphatic carbonates and esters and block copolymers of blocks of polymerised cyclic aliphatic carbonates and blocks of polymerised vinyl compounds stabilized against thermal degradation containing 0.01 to 3.0% by weight, based on polymer, of a compound of trivalent phosphorus.

Abstract: The invention relates to polycarbonate molding compounds consisting of halogen-free polycarbonates, graft polymers, phosphorus compounds, tetrafluoroethylene polymers and, optionally, copolymers and/or, optionally, other additives known per se and a process for their production.

Abstract: Thermoplastic moulding compositions composed ofI) 99.8-95% by weight of(A) 0-100% by weight of one or more graft polymers comprise the monomers styrene, .alpha.-methyl styrene, methyl methacrylate or a mixture of 95-50% by weight of styrene, .alpha.-methyl styrene, ring substituted styrene, methyl methacrylate or mixtures thereof with 5-50% by weight of methacrylonitrile, acrylonitrile, maleric acid anhydride, N-substituted malerimides or mixtures thereof, grafted onto a rubber substrate, andB) 100 to 0%, by weight of one or more thermoplastic vinyl polymers, andII) 0.2 to 5% by weight of a polyalkylene ether modified by a radical former which can be compounds conventionally used as an initiator for radical polymerization such as peroxides.

Abstract: This invention relates to flexible, soft polymer mixtures which are suitable for the production of sheets with a leather-like appearance and can be worked up by calendering and deep drawing and to a process for their preparation.

Abstract: This invention relates to a process for the preparation of high molecular weight aromatic polyethersulphones from diphenols and dihalogenoaryls, characterized in that N-alkylated acid amides are used as solvents and at the same time for the azeotropic removal of the water of reaction.

Abstract: Dispersions of stabilizers for plastics in water which contain special reaction products of diols and carboxylic acid anhydrides as auxiliary emulsifiers, and which are characterized by simple preparation, stability and good effectiveness in chemical materials.

Abstract: Elastic-thermoplastic or thermoplastic powder-form moulding compositions having uniform particles size and improved thermal stability and processes for their manufacture.