Aqueous vinyl acetate ethylene copolymer dispersion for paper coating
US9803101B2 · kind B2 · utility
1Cited by
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14Claims
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Key dates
| Filing date | Mar 27, 2014 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Mar 27, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/265
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a polymer dispersion for paper coating compositions obtainable by means of a radically initiated, aqueous emulsion polymerization of a) 60 to 97% by weight of vinyl acetate, b) 2 to 30% by weight of ethylene, c) 0.5 to 5% by weight of at least one ethylenically unsaturated silane monomer, d) 0.5 to 5% by weight of at least one ethylenically unsaturated carboxylic acid, based in each case on the total weight of the monomers used for the polymerization, and the data in % by weight summing in each case to 100% by weight, in the presence of one or more polymeric emulsifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.