Abstract: A description is given of tetramethylpiperidine-containing copolymers comprising 1-100 mol % of identical or different monomer units of the general formula I ##STR1## (R.sup.1 =COOR.sup.7, COR.sup.8, CONR.sup.8 R.sup.9, CN; R.sup.2 =H, C.sub.1 -C.sub.12 -alkyl, COOR.sup.7, COR.sup.8, CONR.sup.8 R.sup.9, CN; R.sup.3 =H, methyl, ethyl, propyl; R.sup.6 =H, C.sub.1 -C.sub.8 -alkyl; R.sup.7 =H, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.5 -alkenyl, substituted or unsubstituted phenyl; R.sup.8 and R.sup.9 =H, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, substituted or unsubstituted phenyl; X=oxygen, sulfur, NR.sup.6) and also other monomers, and also of processes for preparing the copolymers, of the use of the copolymers as stabilizers, including light stabilizers, and of organic material comprising the copolymers.

Abstract: Water dilutable binders, prepared by subjecting to free radical polymerization(A) from 20 to 90% by weight of a mixture of(a1) from 3 to 50% by weight of acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid, and(a2) from 50 to 97% by weight of an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers,in the presence of(B) from 9.9 to 79.9% by weight of a halogen-free polyolefin free from maleic anhydride groups, or a mixture of halogen-free polyolefins free from maleic anhydride groups, and(C) from 0.1 to 10% by weight of a free radical initiator or a mixture of free radical initiatorsand, after neutralization of at least 20% of the carboxyl groups contained in the resulting polymerization product, dispersing the polymerization product in water, the sum of the percentages by weight of components (A), (B) and (C) and (a1) and (a2) in each case always being 100% by weight.

Abstract: Ethylene-based copolymers which are suitable as flow improvers for mineral oil middle distillates are composed ofa) from 50 to 94% by weight of ethylene,b) from 3 to 30% by weight of one or more vinyl esters of C.sub.2 -C.sub.6 -monocarboxylic acids,c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the general formula I ##STR1## where R.sup.1 is hydrogen or methyl, R.sup.2 and R.sup.3 may be identical or different and are each hydrogen or C.sub.1 -C.sub.6 -alkyl and A.sup.1 is straight-chain or branched C.sub.2 -C.sub.10 -alkylene, andd) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c),copolymers in which monomer b) is vinyl acetate and which have a number average molecular weight of from 5000 to 50,000 being excluded, or are composed ofa') from 50 to 95.5% by weight of ethylene,b') from 4 to 30% by weight of one or more vinyl esters of C.sub.2 -C.sub.6 -monocarboxylic acids,c') from 0.

Abstract: An ethylene-based copolymer which is suitable as a flow improver for mineral oil middle distillates and is composed ofa) from 50 to 94% by weight of ethylene;b) from 3 to 30% by weight of one or more vinyl esters of C.sub.2 -C.sub.6 -monocarboxylic acids;c) from 3 to 20% by weight of one or more aminoalkyl acrylates of the formula I ##STR1## which R.sup.1 is hydrogen or methyl, R.sup.2 and R.sup.3 are identical or different and are each hydrogen or C.sub.1 -C.sub.6 -alkyl and A.sup.1 is straight-chain or branched C.sub.2 -C.sub.10 -alkylene; andd) from 0 to 10% by weight of one or more monomers which are copolymerizable with the monomers a) to c), wherein copolymers containing vinyl acetate as monomer b) and having a number average molecular weight of from 5,000 to 50,000 are excluded from the scope of the copolymer.

Abstract: Polyolefins are thermomechanically degraded in a twin-screw extruder without a downstream degradation apparatus, at from 300.degree. to 550.degree. C. and from 1 to 100 bar and in average residence times of the reaction mixture of from 0.5 to 10 minutes, by a process in which the pressure in the twin-screw extruder is changed periodically or aperiodically with a fluctuation of from 0.5 to 30 bar. The novel process is particularly suitable for the degradation of polypropylene.

Abstract: A curable molding material comprises a coherent phase of a free-radical curable, unsaturated polyester resin in which finely particulate polyolefin particles are dispersed as disperse phase, the two phases being chemically bound to one another at the interfaces by ionic bonds.

Abstract: Copolymers comprisingfrom 75 to 92% by weight of ethylene andfrom 8 to 25% by weight of vinyl acetatehave a solidification point of greater than 87.degree. C. and a melt viscosity of greater than 1,200 centistokes.