摘要:
Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether sulfone(C) from 0.1 to 30% by weight of a polymeric component having hydroxyl groupsand in addition(D) from 0 to 50% by weight of a rubber impact modifier and(E) from 0 to 60% by weight of reinforcing fillers.
摘要:
Impact-resistant thermoplastic molding materials based on a resin A containing one or more vinylaromatic monomers are prepared by reacting the resin A (component A) with one or more monomers from the group consisting of the .alpha.,.beta.-unsaturated dicarbonyl compounds (component B) by a process in which the reaction is carried out in a melt of A in the presence of B and in the absence of initiators, and the resin A used is one which contains from 3 to 50% by weight, based on A, of one or more elastomers a.sub.1 (rubber) and has been prepared in a conventional manner by polymerizing one or more vinylaromatic monomers of 8 to 12 carbon atoms in the presence of the elastomer a.sub.1 are used for the production of moldings.
摘要:
The invention concerns laminates comprising a filled polyolefin layer and a thermoplastic decorative layer, a process for the preparation of these laminates and the use of the laminates for the production of moldings. Between the outer, polyolefin, layer and the decorative layer the novel laminates contain an adhesion-providing layer comprising a fiber-blend web or fabric containing two or more fusible types of fibers, of which one type welds to one of the outer layers to give a good bond, and another type welds to the other outer layer. If one outer layer of the laminate is a polyolefin, one of the fibers of the web can be polypropylene, and if the other outer layer is PVC, one of the fibers can be PVC. The preferred embodiment is a laminate of polypropylene and PVC, with the web or fabric consisting of polypropylene fibers and PVC fibers.
摘要:
Reinforced thermoplastic molding materials containing, as essential components,(A) from 40 to 94 parts by weight of a polymer component of(a.sub.1) from 10 to 90% by weight of polyphenylene ether and(a.sub.2) from 10 to 90% by weight, based in each case on A, of a styrene polymer toughened with an acrylate rubber or with an unhydrogenated or hydrogenated polymer of a conjugated diene,(B) from 1 to 20 parts by weight of a copolymer of(b.sub.1) from 70 to 99.9% by weight of a monomer from the group consisting of styrene, .alpha.-methylstyrene and styrene alkylated in the nucleus or a mixture of these monomers,(b.sub.2) from 0.1 to 30% by weight of one or more compounds from the group consisting of tert-butyl acrylate and tert-butyl methacrylate, or one or more compounds from the group of compounds of the general formula I ##STR1## where R.sup.1 is hydrogen or methyl and R.sup.2, R.sup.3 and R.sup.4 are each an alkyl or alkoxy group of not more than 4 carbon atoms, or of the general formula II ##STR2## where n is an integer from 1 to 4 and R.sup.5, R.sup.6 and R.sup.7 are each one of the radicals stated for R.sup.2 or are each --O(CH.sub.2 --CH.sub.2 --O).sub.m R.sup.8, where R.sup.8 is C.sub.1 -C.sub.4 -alkyl and m is 1, 2, 3 or 4, and(b.sub.3) from 0 to 10% by weight, based on the copolymer, of a further ethylenically unsaturated monomer which is copolymerizable with b.sub.1 and b.sub.2, and(C) from 5 to 50 parts by weight of a reinforcing agent, the number of parts by weight being based on 100 parts by weight of the sum of A, B and C,are prepared and used for the production of moldings.
摘要:
In microelectronic components and thick-film hybrid circuits, the multilayer substrates of the said components and the substrates of the said circuits are produced using liquid crystalline polymers which can be processed by a thermoplastic method.
摘要:
Fully aromatic thermotropic polyesters based on(A) from 30 to 60 mol % of 4-hydroxybenzoic acid,(B) from 20 to 35 mol % of a mixture of(B.sub.1) terephthalic acid,(B.sub.2) isophthalic acid and(B.sub.3) from 0.5 to 5 mol % of a dicarboxylic acid of the general formula I ##STR1## where X is --O--, --S--, --SO.sub.2 --, --CO--, --CH.sub.2 -- or --C(CH.sub.3).sub.2 --, n is 0 or 1 and the two imide nitrogen atoms are meta or para to X, or their C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or bromine derivatives which are substituted in the nucleus,the molar ratio of B.sub.1 to B.sub.2 being from 1.04:1 to 19:1, and(C) from 20 to 35 mol % of a mixture of(C.sub.1) hydroquinone and(C.sub.2) 4,4'-dihydroxydiphenyl,the molar ratio of C.sub.1 to C.sub.2 being from 0.1:1 to 2.67:1 and the molar ratio of B to C being from 0.9:1 to 1.1:1.
摘要:
Graft polymers of(A) a polyphenylene ether as a base polymer and(B) a half ester of an unsaturated dicarboxylic acid of the general formula ##STR1## as a graft monomer, where R.sup.1 is C.sub.1 -C.sub.25 -alkyl, C.sub.2 -C.sub.25 -alkylene or aryl, R.sup.2 and R.sup.3 are each H, Br, Cl or one of the radicals R.sup.1, and Q is H or an alkali metal, an alkaline earth metal or an ammonium cation,with or without(C) further olefinically unsaturated monomers,and their preparation.
摘要:
Fully aromatic thermotropic polyesters are based on(A) from 30 to 60 mol % of 4-hydroxybenzoic acid,(b) from 20 to 35 mol % of a mixture of(B.sub.1) terephthalic acid and(B.sub.2) isophthalic acid, the molar ratio of B.sub.1 to B.sub.2 being from 1.04:1 to 19:1, and(C) from 20 to 35 mol % of a mixture of(C.sub.1) hydroquinone,(C.sub.2) 4,4'-dihydroxydiphenyl and(C.sub.3) from 0.5 to 5 mol % of(C.sub.31) 2,7-dihydroxynaphthalene and/or(C.sub.32) 1,3-dihydroxybenzene and/or(C.sub.33) and aromatic dihydroxy compound of the general formula I ##STR1## where X is --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --S--, --SO.sub.2 --, --O-- or --CO--, and/or(C.sub.34) a compound of the general formula II ##STR2## where Y is NH.sub.2 or OH, the molar ratio of C.sub.1 to C.sub.2 being from 0.1:1 to 2.67:1 and the molar ratio of B to C being from 0.9:1 to 1.1:1.
摘要:
Self-extinguishing thermoplastic polyester molding materials containing linear aromatic polyesters, polyphenylene ethers and additives containA. from 20 to 50% by weight of polyethylene terephthalate and/or polybutylene terephthalate, as much as 20 mol % of which may be modified with other dicarboxylic acids and/or diols,B. from 10 to 40% by weight of one or more polyphenylene ethers,C. from 5 to 15% by weight of one or more alkali metal or alkaline earth metal phosphates, high-boiling phosphoric acid esters, phosphorous acid esters, phosphinic acid esters or phosphonous acid esters or organic phosphine oxides,D. from 5 to 30% by weight of framework-forming fillers,E. from 0 to 30% by weight of one or more aromatic polycarbonates,F. from 0 to 30% by weight of glass fibers,G. from 0 to 20% by weight of one or more elastomeric polymers,H. from 0 to 20% by weight of one or more styrene polymers, the percentages of components A to H summing to 100, andI. if required, additives in effective amounts.
摘要:
Conductive molding materials contain(A) from 29 to 76% by weight of one or more linear thermoplastic nylons,(B) from 20 to 50% by weight of finely divided calcined kaolin and/or finely divided calcium metasilicate, which are coated with organosilanes as coupling agents,(C) from 4 to 6% by weight of conductive carbon black having a BET specific surface area >900 m.sup.2 /g and a DBP absorption >300 ml/100 g and, if required,(D) from 0 to 15% by weight of conventional additives in effective amounts,the percentages of A to D summing to 100.