Abstract: Copolycondensate molding materials are obtainable by polycondensation offrom 2 to 98 mol % of 2,2-di-(4'-hydroxyphenyl)-propane (A),from 2 to 98 mol % of 4,4'-dihydroxydiphenyl sulfone (B) andfrom 0 to 96 mol % of (C) ##STR1## where R.sup.1 and R.sup.2 are each H, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy, X is a chemical bond, --S--, --O--, --CO--, CR.sup.3 R.sup.4 (where R.sup.3 and R.sup.4 are different when n and p are each 0), or SO.sub.2 -- only when n or p is 0), R.sup.3 and R.sup.4 are each H, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, aryl or halogen-substituted alkyl of 1 to 4 carbon atoms, m is 0 or 1, and n and p are each 0, 1, 2, 3, or 4,with from 1 to 100 mol % of (D) ##STR2## where R.sup.5 and R.sup.6 have the same meaning as R.sup.1 and R.sup.2, and v and w are each 0, 1, 2, 3 or 4, and from 0 to 99 mol % of (E) ##STR3## where R.sup.7 -R.sup.10 are each Cl or F or have the same meanings as R.sup.1 and R.sup.2, q is 0 or 1, r, s, t and n are each 0, 1, 2, 3 or 4, Z.sub.

Abstract: Copolycondensate molding materials are obtainable by polycondensation offrom 2 to 98 mol % of 2,2-di-(4'-hydroxyphenyl)-propane (A),from 2 to 98 mol % of 4,4'-dihydroxydiphenyl sulfone (B) andfrom 0 to 96 mol % of (C) ##STR1## where R.sup.1 and R.sup.2 are each H, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy, X is a chemical bond, --S--, --O--, --CO--, CR.sup.3 R.sup.4 (where R.sup.3 and R.sup.4 are different when n and p are each 0), or SO.sub.2 -- (only when n or p is not 0), R.sup.3 and R.sup.4 are each H, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, aryl or halogen-substituted alkyl of 1 to 4 carbon atoms, m is 0 or 1, and n and p are each 0, 1, 2, 3 or 4, withfrom 1 to 100 mol % of (D) ##STR2## where R.sup.5 and R.sup.6 have the same meanings as R.sup.1 and R.sup.2, and v and w are each 0, 1, 2, 3 or 4, and from 0 to 99 mol % of (E) ##STR3## where R.sup.7 -R.sup.10 are each Cl or F or have the same meanings as R.sup.1 and R.sup.2, q is 0 or 1, r, s, t and n are each 0, 1, 2, 3 or 4, Z.sub.

Abstract: Thermoplastic polyester molding materials having low-temperature impact strength essentially consist of(A) from 20 to 79 parts by weight of one or more aliphatic polyesters of an aromatic dicarboxylic acid having a relative viscosity of from 1.2 to 1.8,(B) from 20 to 79 parts by weight of one or more aromatic polycarbonates having a relative viscosity of from 1.2 to 1.5,(C) from 1 to 40 parts by weight of an elastomer blend consisting of1. from 5 to 95% by weight of an ethylene copolymer composed of(a) from 40 to 99% by weight of ethylene and(b) from 1 to 60% by weight of one or more comonomers containing carboxyl groups and/or derivatives of carboxyl groups, and2. from 5 to 95% by weight of an elastomeric graft polymer which is prepared by emulsion polymerization and composed of(a) from 70 to 95% by weight of a substantially crosslinked grafting base having a glass transition temperature T.sub.g below -20.degree. C.

Abstract: Highly heat-resistant polyaryl ether ketones are composed of(A) from 50 to 100 mol % of repeat units of the general formula I ##STR1## or a ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivative thereof and(B) from 0 to 50 mol % of repeat units, different from I, of the general formulae II and/or III ##STR2## or a ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivative thereof, where Q, Q', Y, Y', T, T', Z and Z' are each --O--, --CO-- or a chemical bond, one or more of these substituents is a --CO-- group, and s, t and u are each 0 or 1.

Abstract: Polyaryl ether ketones are prepared by reacting aromatic dihydroxy compounds with aromatic dihalogen compounds in polar aprotic solvents in the presence of alkali metal carbonates, in particular by reacting aromatic dihydroxy compounds I ##STR1## or ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivatives thereof, n and m each being 0 or 1, with aromatic dihalogen compounds ##STR2## or ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivatives thereof, r and s each being 0 or 1, A being oxygen or a chemical bond and X being chlorine or fluorine.

Abstract: Aryl ether ketones of the general formula I ##STR1## where n is from 0 to 5,X is ##STR2## and Y is tert-butyl, acetyl, benzyl, benzoyl, tert-butoxycarbonyl or, in the case of n=0, H,and the ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivatives thereof are useful for preparing highly heat-resistant polyaryl ether ketones.

Abstract: 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.

Abstract: Fiber-reinforced materials are produced by a process in which a heat-stable thermoplastic aromatic polyether A containing reactive groups, preferably nitrile groups and/or sulfur bridges and/or arylthio or alkylthio groups, if required together with a heat-stable thermoplastic polymer B which does not contain any reactive groups, is applied onto reinforcing fibers, the resulting semi-finished product is shaped, and the plastic matrix in the molding obtained is crosslinked so that there is virturally no increase in its glass transition temperature although the amount of soluble material is decreased to less than 60%, determined by extraction in boiling dichloromethane for one hour.

Abstract: High temperature resistant molding materials containing(A) 5-95 mol % of blocks having the structural unit I ##STR1## (B) 5-95 mol % of blocks having the structural unit II ##STR2## (C) 0-80 mol % of blocks having the structural unit III ##STR3## the molecular weight of the blocks being within the range 2000-20,000, where X is --O--, --S--, ##STR4## (only if a or b.noteq.0), ##STR5## (R.sup.7 =R.sup.8 =CH.sub.3 only if a or b.noteq.O) or a chemical bond, R.sup.7 and R.sup.8 are each alkoxy or alkyl of 1-6 carbon atoms, aryl or hydrogen, Q and W are each ##STR6## Z is --O-- or a chemical bond and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each alkyl or alkoxy of 1-6 carbon atoms, aryl, Cl or F and p, q and r are each 0 or 1 and a, b, c, d and e are each 0, 1, 2, 3 or 4.

Abstract: In the preparation of block copolyethers which contain sulfonyl and keto groups by polycondensation of aromatic dihalogen compounds and bisphenols in the presence of an alkali metal carbonate in N-methylpyrrolidin-2-one as a solvent, an amorphous polyether sulfone block having a molecular weight Mn of from 1,500 to 30,000 is prepared in a first stage, and, in a second stage, a polyetherketone block is polymerized onto the living chain ends, the molar ratio of sulfonyl to keto groups being from 90:10 to 40:60.

Abstract: 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.

Abstract: Impact-resistant thermoplastic polyester molding materials are prepared by thoroughly mixingA. from 52 to 99 parts by weight of a melt of one or more polyalkylene terephthalates withB. from 1 to 48 parts by weight of one or more elastomeric graft polymers prepared by emulsion polymerization and composed of1. from 70 to 90% by weight of a grafting base consisting of elastomeric polymers having a gel content of not less than 80% and a glass transition temperature Tg of less than -20.degree. C. and2. from 10 to 30% by weight of a grafted shell consisting of one or more polymers having a glass transition temperature Tg greater than 40.degree. C.,in the form of an aqueous dispersion in which not less than 80% of the particles of graft polymer B have a size of from 0.05 to 0.15 .mu.m, with simultaneous removal of the water which vaporizes.

Abstract: A curable epoxy resin mixture containing an adduct of an epoxy resin with a bifunctional phenol or a bifunctional aromatic carboxylic acid of the formula ##STR1## where A=SO.sub.2 or CO, Ar is ##STR2## and X is OH or COOH, and an aromatic amine as a curing agent.

Abstract: Fiber-reinforced materials are produced by a process in which a heat-stable thermoplastic aromatic polyether A which contains reactive groups, preferably nitrile groups and/or sulfur bridges and/or arylthio or alkylthio groups, if necessary together with a heat-stable thermoplastic polymer B which does not contain any reactive groups, is applied onto reinforcing fibers, the resulting semi-finished product is molded and, in the molding obtained, the plastic matrix is crosslinked so that the glass transition temperature increases and it becomes virtually insoluble.

Abstract: Thermoplastic polyoxymethylene molding materials having high abrasion resistance contain(A) from 4 to 94.7 parts by weight of polyoxymethylene,(B) from 5 to 50 parts by weight of wollastonite,(C) from 0.2 to 5 parts by weight of N-hydroxymethylmelamines in which some or all of the hydroxymethyl groups are etherified with alkanols,(D) from 0.1 to 5 parts by weight of a silicone oil having a degree of polycondensation n of from 10 to 5,000 and/or(E) from 0.1 to 10 parts by weight of polyethylene and/or copolymers of ethylene and .alpha.-olefins having a molecular weight of from 100,000 to 1,000,000,the number of parts by weight of components A, B, C, D and E summing to 100, with or without(F) effective amounts of additives.

Abstract: Impact-resistant polyoxymethylene molding materials containing(A) from 30 to 95% by weight of one or more polyoxymethylenes and(B) from 5 to 70% by weight of one or more elastomeric graft polymers which are prepared by emulsion polymerization, are dispersed in component A, have a mean particle diameter of from 0.08 to 2 .mu.m and are composed of1. from 60 to 90% by weight of a grafting base of crosslinked polybutadiene in which not more than 30% by weight of the butadiene may be replaced with isoprene, 2,3-dimethylbutadiene, styrene, p-methylstyrene, .alpha.-methylstyrene and/or (meth)acrylonitrile, and2. from 10 to 40% by weight of one or more grafted shells consisting of polymers of styrene and/or methyl methacrylate, in which not more than 15% by weight of the said monomers 2 may be replaced with acrylonitrile or a C.sub.1 -C.sub.8 -alkyl acrylate,the percentages A and B and the percentages 1 and 2 summing to 100, with or without(C) effective amounts of assistants,and a process for their preparation.

Abstract: Thermoplastic molding materials containing a mixture ofA. a heat-stable polymer, e.g. a polyether sulfone or polysulfone, which does not contain any reactive groups, andB. a heat-stable polymer which contains reactive groups, preferably nitrile or thioaryl groups and/or sulfur bridges,can be processed to moldings, which can be crosslinked, for example by being heated at above 200.degree. C., so that the plastic matrix becomes virtually insoluble.

Abstract: Fiber-reinforced materials are produced by impregnating continuous filaments with a melt of a polyarylene sulfide ketone, preferably one having a reduced viscosity .eta..sub.red of from 0.1 to 0.5 [dl.g.sup.-1 ], shaping the resulting semi-finished product to give a finished article and heating the latter for not less than 15 minutes at above the crystallite melting point of the polyarylene sulfide ketone, the latter undergoing crosslinking and its glass transition temperature Tg increasing by not less than 5.degree. C.

Abstract: Photopolymerizable mixtures of (a) one or more block copolymers, (b) one or more photopolymerizable, ethylenically unsaturated, low molecular weight compounds and (c) a photopolymerization initiator, with or without (d) other additives, contain as component (a) block copolymers which are composed solely of elastomeric polymer blocks, and contain two or more elastomeric polymer blocks having a glass transition temperature of from -20.degree. C. to +15.degree. C., linked by one or more elastomeric polymer blocks having a glass transition temperature of below -20.degree. C.

Abstract: A process for the preparation of branched block copolymers of from 60 to 95% by weight of a monovinyl-aromatic monomer and from 40 to 5% by weight of a conjugated diene by polymerizing the monomers in an inert solvent in the presence of a monolithium-hydrocarbon as the initiator, wherein, in a first process stage (a), from 50 to 80, or where necessary at most 90, % by weight of the total amount of monovinyl-aromatic compound are polymerized to virtually complete conversion in the presence of a relatively small amount of the monolithium-hydrocarbon. This stage is carried out by starting with from 30 to 70% by weight of the vinyl-aromatic monomer and adding from 70 to 30% by weight in the feed, during the polymerization, in such a way that the polymerization temperature, which at the start of the polymerization is from 30.degree. to 40.degree. C., is kept at from 45.degree. to 70.degree. C., with use of reflux cooling. After all the monomer feed has been added, the reaction temperature is lowered to 30.degree.