Carboxylated monomer/vinyl chloride/vinyl acetate terpolymer emulsions, process of production and use
US4348496A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1981 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Jan 26, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A pastable emulsion polymer comprised of carboxylated monomer/vinyl chloride/vinyl acetate terpolymer having improved strength of adhesion produced by emulsion copolymerization and containing, per polymer weight, PA0 from 60% to 98% by weight of vinyl chloride monomer units, PA0 from 1% to 29% by weight of vinyl acetate monomer units, and PA0 from 1% to 15% by weight of carboxyl-containing monomer units selected from the group consisting of olefinically-unsaturated monocarboxylic acids, monoallyl esters of non-ethylenically unsaturated dicarboxylic acids, and monovinyl esters of non-ethylenically-unsaturated dicarboxylic acids. The terpolymers are manufactured by the copolymerization of vinyl chloride, vinyl acetate, olefinically-unsaturated monocarboxylic acids and/or monoallyl esters and/or monovinyl esters of non-ethylenically unsaturated dicarboxylic acids in an aqueous emulsion. The pastable terpolymers, after empasting are used for coating flexible sheet-like articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.