METHOD FOR PRODUCING SOLVENT-FREE POLYVINYL ESTER DISPERSIONS WITH GREATER RESISTANCE TO WATER
The present invention relates to the preparation of heterogeneous, water-resistant polyvinyl ester dispersions having a film-forming temperature of below 10 DEG C., comprising the formation of a homo- or copolymer A, having a glass transistion temperature of more that 20 DEG C., by seed polymerizati...
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| creator | JAKOB, MARTIN PRASS, WERNER |
| description | The present invention relates to the preparation of heterogeneous, water-resistant polyvinyl ester dispersions having a film-forming temperature of below 10 DEG C., comprising the formation of a homo- or copolymer A, having a glass transistion temperature of more that 20 DEG C., by seed polymerization of a monomer mixture comprising 85-100% by weight of a vinyl ester of carboxylic acids having 1 to 18 carbon atoms, 0-10% by weight of an alpha , beta -unsaturated carboxylic acid and/or of an N-functional compound and 0-5% by weight of a polyethylenically unsaturated monomer in the presence of a seed base comprising a copolymer B having a glass transition temperature of below 20 DEG C., comprising 45-98% by weight of a vinyl ester of carboxylic acids having 1 to 18 carbon atoms, 2-50% by weight of an alpha -olefin having 1 to 4 carbon atoms and 0-5% by weight of a polyethylenically unsaturated monomer. |
| format | Patent |
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| subjects | ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES |
| title | METHOD FOR PRODUCING SOLVENT-FREE POLYVINYL ESTER DISPERSIONS WITH GREATER RESISTANCE TO WATER |
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