摘要:
The invention relates to thermoplastic molding compositions comprisingA) from 30 to 98% by weight of a graft copolymer comprisinga.sub.K) from 30 to 90% by weight of an elastomeric graft core,a.sub.S) from 10 to 70% by weight of a graft shell comprisinga.sub.S /1) from 50 to 100% by weight of a styrene compound or a C.sub.1 -C.sub.8 -alkyl acrylate or methacrylate, or a mixture thereof, anda.sub.S /2) from 0 to 50% by weight of one or more other monomers,B) from 1 to 50% by weight of a thermoplastic polymer andC) from 1 to 70% by weight of an elastomeric block copolymer prepared by anionic polymerization of the monomers with addition of a potassium compound soluble in non-polar solvents (Step 1) followed by hydrogenation of all or virtually all the olefinic double bonds of the polymer obtained in Step 1, as described in greater detail herein.
摘要:
Thermoplastic molding materials compriseA) from 30 to 98% by weight of a graft polymer ofa.sub.K) from 30 to 90% by weight of an elastomeric graft core, obtainable by copolymerization ofa.sub.K /1) from 80 to 99.99% by weight of a C.sub.1 -C.sub.10 -alkyl ester of acrylic acid,a.sub.K /2) from 0.01 to 20% by weight of a crosslinking monomer anda.sub.K /3) from 0 to 40% by weight of one or more further monomers, anda.sub.S) from 10 to 70% by weight of a graft shell ofa.sub.S /1) from 50 to 100% by weight of a styrene compound of the general formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or C.sub.1 -C.sub.8 -alkyl, and/or of a C.sub.1 -C.sub.8 -alkyl ester of acrylic acid or methacrylic acid, anda.sub.S /2) from 0 to 50% by weight of one or more further monomers,B) from 1 to 50% by weight of a thermoplastic polymer ofb.sub.1) from 50 to 100% by weight of styrene and/or .alpha.-methylstyrene,b.sub.2) from 0 to 50% by weight of acrylonitrile andb.sub.3) from 0 to 50% by weight of one or more further monomers, andC) from 1 to 70% by weight of a copolymer ofc.sub.1) from 30 to 90% by weight of styrene and/or .alpha.-methylstyrene,C.sub.2) from 10 to 70% by weight of butadiene andC.sub.3) from 0 to 30% by weight of one or more further monomers,in which all or virtually all of the olefinic double bonds have been hydrogenated.
摘要:
Thermoplastic molding materials of A) from 30 to 98% by weight of a graft polymer of a.sub.c) from 30 to 90% by weight of an elastomeric graft core and a.sub.s) from 10 to 70% by weight of a graft shell, B) from 1 to 50% by weight of a thermoplastic polymer, C) from 1 to 70% by weight of an elastomeric block copolymer, and D) from 0 to 30% by weight of a polymer having a star-like structure.
摘要:
Thermoplastic molding compositions comprising A) a graft polymer comprising 1) an elastomeric graft core, obtainable by copolymerization of one or more C1-C10-alkyl acrylates, and a monomer with crosslinking effect, and 2) a graft shell comprising a styrene compound or a C1-C8-alkyl acrylate or methacrylate, or a mixture of the styrene compound and the C1-C8-alkyl acrylate or methacrylate, and B) a thermoplastic polymer comprising C) an elastomeric block copolymer in which all or virtually all of the olefinic double bonds have been hydrogenated, comprising at least one block A, which forms a hard phase and contains, in its polymer chain, units of a vinylaromatic monomer, and/or a block B, which forms a first elastomeric (soft) phase and contains diene monomers, and at least one elastomeric block B/A, which forms a soft phase, and contains, randomly in its polymer chain, units of both a vinylaromatic monomer and a diene, where the glass transition temperature Tg of the block A is above 25° C. and that of the block B/A is below 25° C. and the phase-volume ratio of block A to block B/A is chosen so that the proportion of the hard phase in the entire block copolymer is from 1 to 40% by volume and the proportion by weight of the diene is less than 50% by weight.
摘要:
The present invention relates to thermoplastic molding compositions comprising a mixture of (A) from 30 to 69% by weight, based on the sum of components (A), (B) and (C), of a methyl methacrylate polymer, (B) from 30 to 69% by weight, based on the sum of components (A), (B) and (C), of a copolymer obtainable by polymerizing a styrenic monomer and a vinyl cyanide, and (C) from 1 to 40% by weight, based on the sum of components (A), (B) and (C), of a graft copolymer obtainable from (C1) from 60 to 90% by weight, based on (C), of a core obtainable by polymerizing a 1,3-diene and a styrenic monomer, (C2) from 5 to 20% by weight, based on (C), of a first graft shell, and (C3) from 5 to 20% by weight, based on (C), of a second graft shell composed of an alkyl (meth)acrylate polymer, with the proviso that the ratio of (C2) to (C3) is in the range from 2:1 to 1:2, the essence of the invention being that the first graft shell (C2) is obtainable by polymerizing a monomer mixture consisting of (C21) from 30 to 39% by weight, based on (C2), of a styrenic monomer, (C22) from 61 to 70% by weight, based on (C2), of a C1-C8-alkyl ester of methacrylic acid and (C23) from 0 to 3% by weight, based on (C2), of a crosslinking monomer, and also to processes for producing these molding compositions, to their use and to the moldings obtainable therefrom.
摘要:
Molding materials containA) from 5 to 97.9% by weight of at least one polycarbonate having a weight average molecular weight (M.sub.w) of from 10,000 to 64,000 g/mol,B) from 1 to 93.9% by weight of at least one graft copolymer,C) from 1 to 93.9% by weight of at least one copolymerc.sub.1) at least one vinylaromatic compound of the general formula I ##STR1## where R is hydrogen or C.sub.1 -C.sub.8 -alkyl, R.sup.1 is C.sub.1 -C.sub.8 -alkyl and n is an integer from 0 to 3, or of a C.sub.1 -C.sub.8 -alkyl acrylate, a C.sub.1 -C.sub.8 -alkyl C.sub.1 -C.sub.8 -alkylacrylate or a mixture thereof and c.sub.2) acrylonitrile, C.sub.1 -C.sub.8 -alkylacrylonitrile or a mixture thereof,D) from 0.01 to 10% by weight of at least one polyhydroxyether of at least one aliphatic or aromatic diol with epihalohydrin,E) from 1 to 25% by weight of at least one halogen-free phosphorus compound andF) from 0 to 50% by weight of additives.
摘要:
Graft copolymers are obtainable by reactingA) polyarylene ethers,B) polyamides andC) copolymers which contain cyclic, .alpha.,.beta.-unsaturated dicarboxylic anhydridesand are used for the preparation of thermoplastic molding materials or as compatibilizers for polymer blends based on polyarylene ethers and polyamides.
摘要:
Thermoplastic molding compositions are made from A) from 20 to 98% by weight of a particulate graft polymer and a non-elastomeric graft shell B) from 0.5 to 78.5% by weight of a thermoplastic styrene polymer or copolymer C) from 1 to 79% by weight of a second styrene copolymer and D) from 0.5 to 30% by weight of an isobutene polymer.
摘要:
Thermoplastic molding compositions, comprising (A) from 20 to 99% by weight of at least one graft copolymer, (B) from 1 to 80% by weight of a copolymer obtained from at least one alpha-olefin and from at least one polar comonomer, with the proviso that the monomers used are not vinyl acetate or any vinylaromatic monomer, and (C) from 0 to 80% by weight of a thermoplastic polymer, obtained by polymerizing a monomer mixture, of (c1) from 50 to 100% by weight of at least one vinylaromatic monomer and/or of a C1-C8-alkyl (meth)acrylate, and (c2) 0 to 50% by weight of at least one monofunctional comonomer, and (D) from 0.5 to 30% by weight of a (co)polymer made from (d1) from 50 to 100% by weight of isobutene and (d2) from 0 to 50% by weight of one or more other monomers, process of preparing same and their uses.
摘要:
Thermoplastic molding masses made of thermoplastic polymers obtained by mixed graft polymerization and having a glass transition temperature above 20 C., and of special rubber-elastic block copolymers, are characterized by a balanced spectrum of properties.