Abstract: The invention relates to polymethacrylate acid-polyalkylene oxide block copolymers, to a process for their preparation and to their use as dispersants or suspension stabilizers for pigments and fillers, e.g. for metal oxides in ceramic materials, for pigments in inks used in ink jet printing and for fillers in thermosplastic and thermoset polymers.

Abstract: .alpha., .omega.-polymethacrylate glycols of the general formula ##STR1## are prepared and a method for their synthesis and their use as only or partial glycol component for the preparation of polyesters and polyurethanes and for the modification of alkyd and epoxide resins are described.

Abstract: Polyacrylate esters having an average molecular weight of 1500 to 20,000 and being obtainable by the transesterification of alkyl polyacrylates, obtained by free radical polymerization and containing 1 to 4 carbon atoms in the alkyl group, witha) saturated or unsaturated aliphatic alcohols with 12 to 22 carbon atoms andb) optionally, additionally with dialkylaminoalkanols of the general formula HO--R.sup.1 --NR.sup.2 R.sup.3, wherein R.sup.1 is a divalent alkylene groups with 2 to 4 carbon atoms and are R.sup.2, R.sup.3 are the same or different and represent alkyl groups with 1 to 4 carbon atoms,the molar ratio of the aliphatic alcohols a) to the dialkylaminoalkanols b) being 1:0 to 1:1.5, and the components a) and b) being used in such amounts, that 25 to 70% of the ester groups are transesterified, are used as dispersants for finely divided solids, particularly for fillers and pigments, in organic media.

Abstract: Disclosed are polymethacrylic esters of the central formula ##STR1## in which the radicals R.sup.1 are identical or different and are alkyl radicals having 1 to 8 carbon atoms, perfluoroalkyl radicals or dialkylaminoalkyl radicals, andR.sub.2 radicals are derived from an alcohol R.sup.2 OH,n is a number from 1 to 6, anda is a number which on average is .ltoreq.4, and a process of making the esters by transesterification.

Abstract: .alpha.,.omega.-polymethacrylate dicarboxylic acids of the general formula ##STR1## wherein R.sup.1 is an optionally halogenated alkyl group with 1 to 22 carbon atoms, wherein the R1 group can assume different meanings in the polymer molecule,R.sup.2 is the group of a known chain transfer agent, which has a terminal --COOH croup anda has a value not less than 4. The invention furthermore relates to the synthesis of these compounds and their use as sole or partial components for the synthesis or modification of polyepoxides, polyesters, polyamides, alkyd resins or polyurethanes.

Abstract: Novel polymethacrylate esters are prepared; the ester groups of which in the .alpha. and optionally also in the .omega. position differ from the ester groups in the chain. The invention furthermore relates to a method for the synthesis of these compounds by transesterification under selected method conditions.

Abstract: Novel polymethacrylate esters are prepared; the ester groups of which in the .alpha. and optionally also in .omega. the position differ from the ester groups in the chain. The invention furthermore relates to a method for the synthesis of these compounds by transesterification under selected method conditions.

Abstract: Polyolefins, polyolefin blends and elastomer-modified polyolefins containing additives to increase the surface polarity are prepared. They contain AB block copolymers as additives. A method for preparation of polyolefins, polyolefin blends and elastomer-modified polyolefins with a polar surface is defined as well as the method of preparing the polyolefins articles.

Abstract: Inventive block copolymers are prepared, and their synthesis is described. These inventive block copolymers act as polymeric surfactants, especially as emulsifiers and surfactants, and as compounds having antistatic properties.

Abstract: The invention relates to polymethacrylate ester/polysiloxane block copolymer of the ABA or AB type, A being a polymethacrylate ester block and B a polysiloxane block. The invention furthermore relates to a method for the synthesis of such block copolymers as well as to a method to modify synthetic resins, particularly those based on (meth)acrylates, by adding an effective amount of the inventive block copolymer. The invention also relates to the block copolymer as additives for organic lacquer and varnish systems.

Abstract: A mixed block copolymer of the A-B type is prepared. The A block of the block copolymer is formed by the polymerization of compounds having vinyl groups and the B block of which is a polyoxyalkylene block, obtainable by polymerizing, first of all, monomers having vinyl groups at temperatures of 60.degree. to 150.degree. C. by a free radical mechanism in the presence of sufficient amounts of an initiator and an amount, which corresponds to the desired chain length, of a chain-length regulator, which carries, aside from a mercapto group, a further functional group having at least one active hydrogen and adding alkylene oxide, optionally in the presence of a known addition reaction catalyst, in an addition reaction at 20.degree. to 180.degree. C. onto the polymer so modified, until the desired molecular weight of block B is reached.

Abstract: A poly(meth) acrylic acid dispersion with an organic solvent as outer phase, the dispersed phase particles having a low polydispersity is obtained by the free radical polymerization of (meth) acrylic acid and optionally co-monomers, which bring about a cross-linking of the poly(meth) acrylic acid, in a nonpolar, organic solvent in the presence of stabilizers, costabilizers, and initiators. The stabilizer is a block copolymer.

Abstract: Polyacrylate esters with long-chain hydrocarbon and polyoxyalkylene groups are disclosed, which are prepared by transesterification of polyacrylate alkyl esters, the alkyl groups of which have 1 to 4 carbon atoms and which were obtained by free radical polymerization, wherein the transesterification is carried out with a mixture of selected alcohols and polyoxyalkylene monools. Compared to products obtained by copolymerization, the transesterification products are largely free of undesirable low molecular weight components, have a narrow molecular weight distribution and exhibit excellent surfactant properties. They are useful especially as W/O emulsifiers for natural and synthetic oils.

Abstract: Polyacrylate esters with long-chain alkoxylated hydrocarbonoxy groups are disclosed which can be obtained by the transesterification of polyacrylate esters with polyoxyalkylene monools, wherein the polyacrylate esters, up to 50% of which can be replaced by the corresponding methacrylate esters, have been obtained by free radical polymerization and wherein the polyoxyalkylene monools have the average formulaR.sup.1 O(C.sub.n H.sub.2n O--).sub.x HwhereinR.sup.1 is an alkyl, alkenyl or alkylphenyl group,n has an absolute value of 2, 3 or 4 and an average value of 2.0 to 2.5 andx is 10 to 200.The compounds, which can be used as emulsifiers, solubilizers and for thickening aqueous solutions which contain anionic surfactants, particularly in cosmetics and for personal grooming, are distinguished by a content of low molecular weight components, which is smaller compared to that of products obtained by copolymerization.

Abstract: Polyacrylate esters with ammonium salt groups obtained by the transesterification of alkyl polyacrylates produced by free radical polymerization are disclosed, wherein the alkyl groups of the acrylate esters have 1 to 8 carbon atoms, up to 50% of the acrylate esters can be replaced by the corresponding methacrylate esters and the transesterification is carried out witha) compounds of the formula ##STR1## b) saturated or unsaturated aliphatic alcohols having 8 to 22 carbon atoms or alkoxylated alkylphenols having 9 to 27 carbon atoms in the alkylphenol group,wherein the molar ratio of component a) to component b) is 1:9 to 9:1, in such amount that 5 to 70% of the ester groups are transesterified and subsequently, the transesterification product is transformed into a salt.

Abstract: Polyacrylate esters with long-chain hydrocarbon and polyoxyalkylene groups are disclosed, which are prepared by transesterification of polyacrylate alkyl esters, the alkyl groups of which have 1 to 4 carbon atoms and which were obtained by free radical polymerization, wherein the transesterification is carried out with a mixture of selected alcohols and polyoxyalkylene monools. Compared to products obtained by copolymerization, the transesterification products are largely free of undesirable low molecular weight components, have a narrow molecular weight distribution and exhibit excellent surfactant properties. They are useful especially as W/O emulsifiers for natural and synthetic oils.

Abstract: Polyacrylate esters with quaternary ammonium groups are disclosed. The esters are obtained by transesterifying alkyl polyacrylate esters with a mixture of dialkylaminoalkanols and saturated or unsaturated aliphatic alcohols with 8 to 22 carbon atoms, followed by quaternization.The polymers are free of physiologically questionable components and can therefore be used for the preparation of cosmetic products, preferably for hair cosmetics. The polymers furthermore are suitable for finishing fibers or of textile products.The invention is furthermore directed to polyacrylate esters with tertiary amino groups, which are formed as intermediates in the preparation of polyacrylate esters with quaternary ammonium groups.

Abstract: Polyacrylate esters with quaternary ammonium groups are disclosed. The esters are obtained by transesterifying alkyl polyacrylate esters with dialkylaminoalkanols, followed by quaternization.The polymers are free of physiologically questionable components and can therefore be used for the preparation of cosmetic products, preferably for hair cosmetics. The polymers furthermore are suitable for finishing fibers or of textile products.The invention is furthermore directed to polyacrylate esters with tertiary amino groups, which are formed as intermediates in the preparation of polyacrylate esters with quaternary ammonium groups.

Abstract: A method is disclosed for the preparation of flexible polyester polyurethane foam by reaction of at least difunctional polyesterols with at least difunctional organic isocyanates in the presence of catalysts and a stabilizer mixture of organic and organosilicon compounds, water, optionally blowing agents and optionally conventional additives, wherein the stabilizer mixture used comprisesa) a (meth)allyl polyoxyalkylene ether polymer or its copolymer with vinyl monomers andb) a polyoxyethylene-polysiloxane block copolymer,in a ratio by weight of a:b of 1:9 to 9:1. The polyester foam obtained are open celled to a high degree and have an excellent die-cuttability.

Abstract: Polyethers are disclosed which contain perfluoroalkyl groups and have the average formula ##STR1## wherein R.sup.1 is the same or different in the polymer mixture and represents hydrogen or a fluoro group,n has an average value of 4 to 12,a has an average value of 0 to 4,m has an average value of 2 to 18,x has an average value of 2 to 50 andy has an average value of 0 to 3.A method for the synthesis of the new polyols, which are usefull as surfactants and, with respect to the compounds of formula I, as polyol components in the synthesis of polyurethanes, is also disclosed.