Abstract: A process for the preparation of finely-divided aqueous copolymer dispersions with a solids content of 10 to 70% by weight, based on the dispersion, comprising emulsion polymerizing (a) 1 to 50% by weight of ethylene and (b) 99 to 50% by weight of at least two ethylenically unsaturated comonomers in the presence of a free-radial initiator and at least one member of the group consisting of emulsifier and a protective colloid and optionally present conventional adjuvants, the ethylenically unsaturataed comonomers being (b1) 79.5 to 99.5% by weight of vinyl chloride, (b2) 0 to 15% by weight of ethylenically unsaturated oil-soluble monomers, (b3) 0.

Abstract: Silicone containing paint compositions containing aqueous dispersions of(a) organopolysiloxanes; and(b) an ethylene-vinyl chloride copolymer which does not exceed the weight of the organopolysiloxanes.

Abstract: A process for the production of an emulsion polymerization aqueous copolymer dispersion with a solids contents of 45-55% by weight of(a) 75 to 95 parts by weight of acrylic acid and/or methacrylic acid alkyl esters of 1 to 10 carbon atoms of which 20 to 80% by weight have a water solubility of at most 2 g/l and 20 to 80% by weight a water solubility of at least 10 g/l(b) 5 to 25 parts by weight of a mixture of ethylenically-unsaturated, functional and water-soluble monomers, 25 to 100% by weight thereof consisting of unsaturated carboxylic acids.(c) 500 to 1700 parts by weight of a mixture of 70 to 100% by weight of vinyl chloride, 0 to 30% by weight of at least one vinyl ester of saturated carboxylic acids of 2 to 18 carbon atoms and 0 to 1.

Abstract: A process for the preparation of aqueous solutions of N-methylol-acrylamide and/or N-methylol-methacrylamide comprising forming a homogeneous mixture of aqueous solution of formaldehyde and aqueous solution of acrylamide and/or methacrylamide and passing the homogeneous mixture through an ion-exchange resin bed based on a styrene-divinylbenzene polymer with tertiary amino groups at an elevated temperature so that the reaction is at least 80% theoretically completed when the mixture issues from the bed, characterized in that the ion exchanger is initially in the form of its free base, the initial temperature and velocity of the homogeneous mixture being adjusted to maintain the bed temperature between 35.degree. and 60.degree. C. and continuing the passage of the homogeneous mixture through the exchanger bed until the bed temperature drops and/or the pH of the exiting solution is below 8.

Abstract: Aqueous dispersions containing from 30% to 70% by weight of cross-linkable copolymers based on esters of (meth)acrylic acid comprising esters of (meth)acrylic acid and/or styrene, and other ethylenically-unsaturated compounds copolymerizable therewith and from 1% to 15% by weight based on the total weight of the copolymer, of allyl esters of .alpha.-hydroxycarboxylic acids. These dispersions can be used as a base of stoving enamels, which can be hardened to obtain coats of great surface hardness and great flexibility on metals.

Abstract: The invention relates to a process for the preparation of polymers from polymerizable urethanes prepared by reacting isocyanates having at least two isocyanato groups with polyesters of the formula ##STR1## wherein R is alkylene having from 2 to 10 carbon atoms, A is an ethylenically-unsaturated radical, and n is an integer of from 1 to 100.

Abstract: Copolymers according to the invention contain a new crosslinking system based on carbonamide and/or N-methylol carbonamide groups in the copolymer, the crosslinked polymers containing the following structural units ##STR1## in which R represents a straight-chain or branched aliphatic hydrocarbon radical having 0 to 9 carbon atoms,R represents a hydrogen atom or a methyl radical, andR represents hydrogen or a --CH.sub.2 OH-- group and have molecular weights of between 10.sup.3 and 10.sup.6.The invention also relates to a process of making the copolymers, which have among other advantages a superior resistance to solvents. They are useful as coating compositions and the like.

Abstract: Cross-linkable vinyl ester and/or vinyl halide copolymers containing hydroxyl groups consisting essentially of:(a) from 50% to 99% by weight of monomer units selected from the group consisting of vinyl esters of alkanoic acids having from 1 to 18 carbon atoms, vinyl halides, and mixtures of said vinyl esters and vinyl halides,(b) from 0 to 40% by weight of mono-olefinically-unsaturated monomer units copolymerizable with vinyl esters and vinyl halide,(c) from 1% to 50% by weight of allyl ester monomer units of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are selected from the group consisting of hydrogen and alkyl having from 1 to 16 carbon atoms, and R.sub.3 is alkylene having from 1 to 16 carbon atoms, with the proviso that the total number of carbon atoms in R.sub.1, R.sub.2 and R.sub.3 is at least 2,where said copolymer has a K-value of between 10 and 100.

Abstract: A composition containing diorganopolysiloxanes and copolymers prepared in the presence of these diorganopolysiloxanes in which the copolymers are derived from monomers consisting of at least ethylene and vinyl acetate. The resulting composition exhibits non-slump properties and does not migrate on vertical surfaces even in the absence of fillers.

Abstract: Bituminous organopolysiloxanes which are capable of being cured comprising a bituminous material and a modified organopolysiloxane capable of being cross-linked.