Abstract: Blends compriseA) from 55 to 99% by weight of a matrix of copolyarylene ether sulfones composed ofa.sub.1) from 91 to 97 mol % of structural units ##STR1## a.sub.2) from 3 to 9 mol % of structural units ##STR2## B) from 1 to 45% by weight of a disperse phase comprising copolyarylene ether sulfones, composed ofb.sub.1) from 91 to 97 mol % of structural units II andb.sub.2) from 3 to 9 mol % of structural units I,C) from 0 to 40% by weight of rubber impact modifiers,D) from 0 to 60% by weight of fibrous or particulate fillers or of mixtures thereof andE) from 0 to 40% by weight of processing assistants and/or additives.

Abstract: Molding compositions based on polyaryl ethers A, are obtainable by reacting polyaryl ethers I with repeating structural elements ##STR1## or derivatives thereof substituted by C.sub.1 -C.sub.6 -alkyl, alkoxy, aryl, chlorine or fluorine in the nucleus, where X and Z, independently of one another, are each --SO.sub.2 --, --O--, --S--, >C.dbd.O a chemical bond or --CRR'--, R and R' are each hydrogen, C.sub.1 -C.sub.6 -alkyl or alkoxy, R' is also aryl or fluoro- or chloro-substituted aryl, with the proviso that X and Z are not both --O--, with a reactive compound which, besides a C--C double or triple bond, contains one or more carbonyl, carboxylic acid, carboxylate, acid anhydride, amide, imide, carboxylic ester, amino, hydroxyl, epoxy, oxazoline, urethane, urea, lactam or halobenzyl moieties.

Abstract: Partly aromatic copolyamides contain as essential componentsA) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine,B) 0-50% by weight of units derived from .epsilon.-caprolactam andC) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,the components B) and/or C) accounting for a total of not less than 10% by weight of the total units and the copolyamide having a triamine content of less than 0.5% by weight.

Abstract: Thermoplastic molding compositions contain as essential componentsA) 40-95% by weight of a partly aromatic copolyamide composed essentially ofA.sub.1) 20-90% by weight of units derived from terephthalic acid and hexamethylenediamine,A.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam andA.sub.3) 0-80% by weight of units derived from adipic acid and hexamethylenediamine,B) 5-60% by weight of an impact modifying rubber, and in additionC) 0-50% by weight of fibrous or particulate fillers or mixtures thereof.

Abstract: Partly aromatic copolyamides contain as essential componentsA) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine,B) 0-50% by weight of units derived from .epsilon.-caprolactam andC) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,the components B) and/or C) accounting for a total of not less than 10% by weight of the total units and the copolyamide having a triamine content of less than 0.5% by weight.

Abstract: Free-flowing granules of thermoplastic elastomers are obtained by applying a finely divided mineral powder, namely a silicate from the group comprising wollastonite, kaolinite or mica, in an amount of from 0.005 to 0.5%, based on the amount of elastomer, to the surface of the granules.

Abstract: Partly aromatic copolyamides contain as essential componentsA) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine,B) 0-50% by weight of units derived from .epsilon.-caprolactam andC) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,the components B) and/or C) accounting for a total of not less than 10% by weight of the total units and the copolyamide having a triamine content of less than 0.5% by weight.

Abstract: Thermoplastic molding materials contain, as essential components,A) 20-98% by weight of a partly aromatic amide copolymer essentially consisting ofa.sub.1) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine,a.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam anda.sub.3) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,components a.sub.2) and/or a.sub.3) accounting altogether for not less than 10% by weight of the total number of units,B) 2-80% by weight of a partly crystalline thermoplastic polyamide which differs from A)and furthermoreC) 0-50% by weight of an elastomeric impact modifier andD) 0-60% by weight of fibrous or particulate fillers or a mixture of these.

Abstract: A process for the continuous preparation of a linear polyamide having ether bridges in the polymer chain, in which an aqueous solution of a salt of a diamine and an equimolar amount of a dicarboxylic acid, which may additionally contain a lactam or the corresponding aminocarboxylic acid, from 1 to 80% of the polyamide-forming units, based on the total polyamide-forming units, being diamine and/or dicarboxylic acid units which, after removal of the amine groups or carboxyl groups, have radicals of formula I--R.sup.1 --O--R.sup.2 --O]R.sup.3 -- I,in which R.sup.1, R.sup.2 and R.sup.

Abstract: Copolyamides are prepared by a continuous process in which(a) an aqueous solution of salts of equimolar amounts of diamines and dicarboxylic acids is passed, under superatmospheric pressure and with simultaneous evaporation of water, through a tubular precondensation zone with formation of a vapor phase and a prepolymer at above the melting point of the prepolymer,(b) the vapor phase is separated from the prepolymer melt,(c) the vapor phase is separated in a column into steam and an aqueous diamine solution, and the aqueous solution containing diamines is recycled to the polymerization,(d) the prepolymer melt is mixed with molten caprolactam at polyamide-forming temperatures, and(e) the mixture of prepolymer and caprolactam is passed downward through a vertical polymerization tube at polyamide-forming temperatures and a copolyamide is obtained.

Abstract: Thermoplastic molding materials contain, as essential components,A) from 40 to 99.5% by weight of a thermoplastic polyamide,B) from 0.5 to 15% by weight of a thermoplastic polyester elastomerand furthermoreC) from 0 to 50% by weight of fibrous or particulate fillers or a mixture of these.

Abstract: Copolyamides which contain units of the formula --NH--(CH.sub.2).sub.4 --NH are prepared by a continuous process in whicha) an aqueous solution of from 5 to 80% by weight of a salt of 1,4-diaminobutane, and dicarboxylic acids and from 20 to 95% by weight of further polyamide-forming starting materials are heated to a temperature above the melting point of the copolyamide, with the addition of diamines and with vaporization of water, under superatmospheric pressure,b) the vapor phase and prepolymer are brought into intimate contact with one another,c) the prepolymer is separated from the vapor phase and the polymer is discharged after a total residence time of not more than 30 minutes, andd) diamines are separated off from the vapor phase and recycled to a).

Abstract: Thermoplastic molding materials contain, as essential components,(A) from 40 to 99.55% by weight of a thermoplastic polyamide,(B) from 0.45 to 15% by weight of a thermoplastic polyester elastomer,(C) from 0.05 to 1.99% by weight of melamine cyanurate and in addition(D) from 0 to 50% by weight of fibrous or particulate fillers or a mixture thereof.

Abstract: A process for the continuous preparation of polytetramethylene adipamide, in which(a) an aqueous solution of the salt of 1,4-diaminobutane and adipic acid is heated with evaporation of water to form a vapor phase and a molten prepolymer,(b) the said prepolymer and vapor phase are passed, to effect thorough mixing thereof, through a mass transfer zone equipped with baffles and located immediately downstream of stage (a),(c) the said vapor phase is separated from the polymer in a separting zone and the polymer is discharged in the form of a melt capable of being granulated, with the proviso that the total residence time in stages (a), (b) and (c) is less than 5 minutes, and(d) pyrrolidine is distilled off from the vapor phase separated in stage (c) and 1,4-diaminobutane is recycled to the vaporizing stage (a).

Abstract: Flameproofed thermoplastic molding materials contain(A) 40-99% by weight of a partly aromatic amide copolymer consisting essentially of(a.sub.1) 40-50% by weight of units derived from terephthalic acid and hexamethylenediamine,(a.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam and(a.sub.3) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,components (a.sub.2) and/or (a.sub.3) accounting altogether for not less than 10% by weight of the total number of units,(B) 1-30% by weight of a flameproofing combination of(b.sub.1) 40-97% by weight of red phosphorus,(b.sub.2) 1-50% by weight of an inorganic compound of a divalent or tetravalent metal,(b.sub.3) 1-40% by weight of an organic mono- or dicarboxylic acid and(b.sub.

Abstract: A solid mixture contains as essential components(A) from 40 to 99% by weight, based on the total weight of (A) and (B), of a nonnucleating thermoplastic polyamide and(B) from 1 to 60% by weight, based on the total weight of (A) and (B), of a thermoplastic polyamide which contains a nucleating agent, and in addition(C) from 0 to 60% by weight, based on the total weight of (A)+(B)+(C), of fibrous or particulate fillers.