Abstract: The use of molding compositions based on unsaturated polyester resins containing specific reactive groups and of sheet metals with a specially selected coating results in sheet metal/duroplast composite elements having excellent adhesion.

Abstract: A process for the production of polyester-polyamide block polymers by precondensing a polyamide-forming starting mixture until a relative viscosity of at least 1.2 is attained, and adding a polyester, the dicarboxylic acid units of which are derived to at least 50% from dicarboxylic acids having at least 17 carbon atoms.

Abstract: Products prepared by reacting isopropenyl phenols or bisphenols of the bisphenol-A type with diphenyl amine, phenothiazin or derivatives thereof in the presence of acidic catalysts are used as stabilizers for polyamides and rubbery materials.

Abstract: Thermoplastically polyamide moulding compositions produced from at least 70% by weight of polyamide, a long-chain polyester, polyether or hydrocarbon polyol and at most 5% by weight of a polyanhydride or polyepoxide.

Abstract: Polyester-based mouldings which have been hardened with little shrinkage, do not stick in the mould and therefore can be released from the mould without damage are accessible via moulding compositions containing an unsaturated polyester of defined acid number and certain end groups.

Abstract: The invention relates to a novel process for the production of duromeric aliphatic polycarbonates from cyclic aliphatic carbonic esters by ring-opening polymerization.

Abstract: Easily flowable, impact resistant polyamide moulding composition containing from 0.5 to 10%, by weight, of polyethers preferably modified with (meth)acrylate or primary amino end groups or of polyesters preferably containing (meth)acrylate end groups.

Abstract: Unfilled, unreinforced polyamide moulding compounds are disclosed which have high rigidity and notched impact strength and are highly fluid in the molten state, containing aliphatic polycarbonate polyurethanes which are substantially unbranched in the carbon chain, prepared from polyhexamethylene carbonate diols and/or mixtures thereof with oligo- or polyalkylene glycols having 4-100 carbon atoms and 1,6-diisocyanatohexane.

Abstract: Easy-flowing impact resistant polyamides are obtained by incorporating (poly)oxycarbonylisocyanates into the polyamides.

Abstract: Certain unsaturated polyester resins, so-called soft resins, having certain parameters are suitable for the production of hardened moldings of high elasticity.

Abstract: New chlorocarbonic esters of the formula ##STR1## new polycyclic carbonic esters of the formula ##STR2## and new copolymers obtainable by copolymerization of the new polycyclic carbonic esters of the formula (III) with monocyclic carbonates.

Abstract: Weather-resistant polyamides stabilized by a combination of special cyclic phosphorous acid esters and certain indole derivatives.

Abstract: Stabilized polyamides containing from 0.02 to 5%, by weight of a diphenylamine compound corresponding to the following general formula: ##STR1## wherein R.sup.1 and R.sup.3, which may be the same or different, represent hydrogen, a CH.sub.3 --, C.sub.2 H.sub.5 -- or isopropyl group and R.sup.3 is in the o-, m- or p-position to the N-atom substitution;R.sup.2 represents hydrogen, a C.sub.4 -C.sub.12 alkyl, C.sub.7 -C.sub.12 aralkyl or C.sub.5 -C.sub.12 cycloalkyl group and is in the o-, or p-position to the N-atom substitution;n represents an integer of from 1 to 29; andY is a divalent, non-mono-olefinically unsaturated radical having the same meaning as R.sup.2 and, in addition, may represent (in a proportion of up to 50 mole percent) --S--, --CH.sub.2 --S--CH.sub.2 --, --CH.sub.2 --O--CH-- or >CH--R.sup.4, wherein R.sup.4 represents H, C.sub.1 -C.sub.6 alkyl or C.sub.5 or C.sub.6 cycloalkyl, and may be in the o- or p-position to the N-atom substitution.

Abstract: Optionally reinforced moulding compositions with high impact strength comprising polyamides and graft products of (co)polymers of butadiene and grafted units of methyl(meth)acrylate.

Abstract: Impact improved thermoplastic mixtures of at least partly aromatic polyamides and copolymers of alkadiene with 4-6 C-atoms and acrylonitrile.

Abstract: Polymer compositions comprising amorphous polyamides and graft polymers consisting of polybutadiene and grafted units of styrene and acrylonitrile.

Abstract: Phosphorous acid esters obtained by reacting bisphenols with phosphorous trihalogenide or triphosphite and optionally or mono- or polyhydroxy compound are especially useful for stabilizing polyamides.

Abstract: Phosphorous acid esters obtained by reacting bisphenols with phosphorous trihalogenide or triphosphite and optionally or mono - or polyhydroxy compound are especially useful for stabilizing polyamides.

Abstract: Transparent copolyamides consisting essentially of isophthalic acid, hexamethylene diamine and trimethylhexamethylene diamine.

Abstract: Processes for the production of polyamides wherein a salt of isophthalic acid and hexamethylene diamine are polycondensed in the presence of formic acid.