Abstract: Polymers stabilized by protective colloids and/or emulsifiers and consisting of at least one comonomer unit from the group consisting of vinyl esters of utinbranched or branched alkyl carboxylic acids containing between 1 and 18 C atoms, acrylic acid esters or methacrylic acid esters of branched or unbranched alcohols containing between 1 and 15 C atoms, dienes, olefins, vinyl aromates and vinyl halogenides, optionally containing between 0.1 and 20 wt. % more of functional comonomer units from the group comprising carboxyl-functional, hydroxyl-functional and NH-functional, ethylenically unsaturated comonomers, are useful as additives to moldable starch compositions.

Abstract: The present invention provides a crosslinkable polymer composition in the form of its aqueous polymer dispersion or polymer powder, including A) a copolymer having a glass transition temperature Tg or a melting temperature of ?30° C. and containing units derived from one or more comonomers selected from the group consisting of vinyl esters of branched or unbranched alkylcarboxylic acids of 1 to 18 carbon atoms, acrylic esters or methacrylic esters of branched or unbranched alcohols of 1 to 15 carbon atoms, dienes, olefins, vinyl aromatics and vinyl halides and from 0.

Abstract: Particulate materials are cold molded by preheating a binder and the material to be bound to a temperature of from 160 to 240° C., and then press molding at a temperature less than 80° C. and at a pressure of from 1 to 120 bar to give a molding, wherein the binder contains a polymer powder or aqueous polymer dispersion thereof, the polymer having a glass transition temperature Tg greater than 80° C. and a complex viscosity less than 15,000 Pa·s at 190° C., and derived from one or more comonomer units from the group of vinyl esters of optionally branched C1-18 alkylcarboxylic acids, (meth)acrylic esters of optionally branched C1-15 alcohols, dienes, olefins, vinylaromatics, and vinyl halides. The moldings exhibit excellent properties including resistance to sagging at elevated temperatures, and are recyclable.

Abstract: A process for forming particulate materials and binders into articles that are reusable after comminution, wherein the particulate materials are treated with a binder composition containing. A) one or more copolymers containing one or more comonomer units selected from the group consisting of vinyl esters of branched or unbranched alkyl carboxylic acids of 1 to 18 carbon atoms, acrylic or methacrylic esters of branched or unbranched alcohols of 1 to 15 carbon atoms, dienes, olefins, vinyl aromatics and vinyl halides, and further containing 4 to 60% by weight, based on the total weight of the copolymer, of one or more comonomer units containing polar groups, and B) one or more fillers having a polar surface capable of interaction with the polar groups of copolymer A), and formed into articles and consolidated, and, if appropriate, the formed article obtained thereby is comminuted for recycling and the material obtained thereby is reused for forming new articles.

Abstract: Particulate materials are cold molded by preheating a binder and the material to be bound to a temperature of from 160 to 240° C., and then press molding at a temperature less than 80° C. and at a pressure of from 1 to 120 bar to give a molding, wherein the binder contains a polymer powder or aqueous polymer dispersion thereof, the polymer having a glass transition temperature Tg greater than 80° C. and a complex viscosity less than 15,000 Pa.s at 190° C., and derived from one or more comonomer units from the group of vinyl esters of optionally branched C1-18 alkylcarboxylic acids, (meth)acrylic esters of optionally branched C1-15 alcohols, dienes, olefins, vinylaromatics, and vinyl halides. The moldings exhibit excellent properties including resistance to sagging at elevated temperatures, and are recyclable.

Abstract: A water-soluble, crosslinkable protective colloid is provided having a molecular weight of least than 500,000 comprising: a) 20 to 959 by weight of monomer units containing sulphonic acid or sulphonate groups, b) 4 to 800 by weight of monomer units containing N-methylol or N-alkoxymethyl groups, and c) 0.1 to 20% by weight of hydrophobic monomer units such as water insoluble ethylenically unsaturated compounds and the hydrophobic end groups of initiator radicals or regulator molecules. Optionally, up to 50% by weight of the monomer units containing sulphonic acid or sulphonate groups can be replaced by monomer units containing carboxyl groups or monomer units containing amide groups.

Abstract: Crosslinkable polymer compositions are provided which can be in the form of a polymer powder which is redispersible in water or as an aqueous dispersion. The polymer composition is composed of A) a copolymer of one or more comonomers of vinyl esters of straight-chain or branched alkanecarboxylic acids having 1 to 18 C atoms, acrylates or methacrylates of branched or straight-chain alcohols having 1 to 15 C atoms, dienes, olefins, vinylaromatics and vinyl halides, and of from 0.1 to 10% by weight, based on the total weight of the comonomers, of one or more ethylenically unsaturated comonomers containing epoxide groups, and B) one or more non-copolymerizable compounds having at least two epoxide groups. The invention furthermore relates to a process for the preparation of the crosslinkable polymer compositions and their use in chemical products for the construction industry.

Abstract: Disclosed is a fiber binding powder composition for consolidating fiber materials, comprising a) a polymer powder based on a polyvinyl alcohol stabilized polymer of one or more monomers selected from the group consisting of the vinyl esters of branched or unbranched carboxylic acids having 1 to 12 carbon atoms, the esters of acrylic acid and methacrylic acid with branched or unbranched alcohols having 1 to 12 carbon atoms, aromatic vinyl compounds, vinyl halides, olefins and dienes, and b) an inorganic compound which is solid at room temperature and which enters a chemical bond with the OH groups of the polyvinyl alcohol on introduction of said powder into water.

Abstract: This invention relates to a process for prebinding fiber materials by means of a pulverulent binder composition. It further relates to the use of the prebound fiber material for producing plastics moldings from fiber-reinforced unsaturated polyester resins or epoxy resins by laying up the prebound fiber material, saturating the fiber material with the unsaturated polyester resin or epoxy resin and forming the molding.

Abstract: A process for forming particulate materials and binders into articles that are reusable after comminution, wherein the particulate materials are treated with a binder composition containing

Abstract: A process is provided for producing fast curing bonded with phenolic resin, which comprises pulverulent phenolic resins mixed with or applied to the substrate to be adhered together with pulverulent addition polymers selected from the group consisting of polyvinyl alcohols and addition polymers, stabilized by hydroxyl-containing protective colloids of at least one monomer selected from the group consisting of the vinyl esters of branched or unbranched carboxylic acids of 1 to 12 carbon atoms, the esters of acrylic acid and methacrylic acid with branched or unbranched alcohols of 1 to 12 carbon atoms, vinylaromatics, vinyl halides, olefins and dienes, and subsequently, by the employment of elevated temperature and optionally elevated pressure, cured and processed into a shaped article.

Abstract: Applicants herewith submit an Abstract on a separate sheet of paper numbered Page 28.

Abstract: The present invention provides a crosslinkable polymer composition in the form of its aqueous polymer dispersion or polymer powder, including A) a copolymer having a glass transition temperature Tg or a melting temperature of ≧30° C. and containing units derived from one or more comonomers selected from the group consisting of vinyl esters of branched or unbranched alkylcarboxylic acids of 1 to 18 carbon atoms, acrylic esters or methacrylic esters of branched or unbranched alcohols of 1 to 15 carbon atoms, dienes, olefins, vinyl aromatics and vinyl halides and from 0.

Abstract: Crosslinkable polymer compositions are provided which can be in the form of a polymer powder which is redispersible in water or as an aqueous dispersion.

Abstract: The invention discloses a method of using crosslinkable polymer powders for producing ballistic-resistant fiber materials, which comprises consolidating the textile sheet materials by means of pulverulent crosslinkable copolymers which are based on ethylenically unsaturated monomers and have a glass transition temperature Tg or a melting point of ≧40° C. and a melt viscosity of ≧2000 mPas.

Abstract: A textile binder in the form an aqueous copolymer dispersion or of a copolymer powder obtainable by means of free-radical emulsion polymerization of a) one or more monomers from the group consisting of vinyl esters, esters of acrylic acid and methacrylic acid, vinylaromatics, vinyl halides and alpha-olefins and b) from 0.01 to 10% by weight, based on the overall weight of the copolymer, of one or more monomers b1) from the group consisting of the N-(alkoxymethyl)acrylamides and N-(alkoxymethyl)-methacrylamides or one or more monomers b2) from the group consisting of N-methylolacrylamide and N-methylolmethacrylamide, or mixtures b1) and b2), where as emulsifier(s) from 0.01 to 10% by weight, based on the overall weight of the copolymer, of one or more emulsifiers from the group of the monoesters or diesters of sulfosuccinic acid with linear, unbranched or branched, or cycloaliphatic alcohols, are employed or are added to the aqueous copolymer dispersion after the end of the emulsion polymerization.

Abstract: The invention concerns water-soluble cross-linkable copolymers having a molecular weight of .ltoreq.500000 and comprising a) between 20 and 95 wt. % sulphonic-acid- or sulphonate-group-containing monomer units; b) between 4 and 80 wt. % N-methylol- or N-alkoxymethyl-group containing monomer units; and c) between 0.1 and 20 wt. % hydrophobic monomer units selected from the group comprising water-insoluble ethylenically unsaturated compounds and hydrophobic end groups of initiator radicals or regulator molecules, the portions in wt. % being relative to the total weight of the copolymer. The portion of sulphonic-acid- or sulphonate-group-containing monomer units can optionally be substituted by up to 50 wt. %, relative to the portion by weight of monomer units a), by carboxyl-group-containing monomer units d) or amide-group-containing monomer units e).

Abstract: The invention provides a powdered crosslinkable textile binder composition for producing polymer bonded textile moldings or sheet materials, comprisinga) a powdered copolymer obtainable by emulsion polymerization and subsequent drying of one or more monomers selected from the group consisting of vinyl esters, acrylic esters, methacrylic esters, vinylaromatics and vinyl chloride and of 0.01 to 25% by weight, based on the total weight of the copolymer, of one or more ethylenically unsaturated carboxyl-containing monomers, the copolymer having a glass transition temperature Tg or a melting point of greater than 40.degree. C. and a molecular weight Mw of 60,000 to 300,000, andb) at least one powdered compound having two or more epoxide or isocyanate groups and a melting point of 40.degree. C. to 150.degree. C.

Abstract: The invention is a ready-to-use, water-redispersible powder composition useful for preparing photographic recording materials or inkjet recording materials, which comprises a mixture containing polymers made from ethylenically unsaturated monomers and gelatin, wherein the polymers are prepared by emulsion polymerization in the presence of at least one emulsifier selected from emulsifiers with ionic and nonionic groups and if exclusively ionic emulsifiers are used, the copolymerization is carried out in the presence of comonomers which contain one or more groups selected from --COOH, --OH, SO.sub.3.sup.-, NCH.sub.2 OH and --C.dbd.O.

Abstract: Process for the stiffening of textile or leather materials, includes (a) applying an aqueous polymer dispersion to a textile structure on the basis of a woven or nonwoven fabric, or a leather material; (b) drying the textile structure or leather material; and (c) the stiffening material thus produced is deformed and glued with the textile and leather material to be stiffened, in which an aqueous dispersion of a two-phase, sealable emulsion graft copolymer having a soft phase and a hard phase is applied. The hard phase has a glass transition temperature of Tg of at least 50.degree. C. and includes monomer units such as methyl methacrylate, styrene, diisopropyl fumarate and vinyl chloride. The soft phase has a glass transition temperature Tg of at least 30.degree. C.