Stable vinyl acetate and amine monomer copolymer emulsions
US4296225A · kind A · utility
9Cited by
7References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1980 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Jan 4, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention provides a process for preparing a stable aqueous emulsion composition which has excellent properties for application as a wet abrasion-resistant paper coating binder. The dispersed copolymer of the aqueous emulsion composition comprises a major proportion of vinyl acetate and a minor proportion of an amino-containing vinyl monomer. An important aspect of the emulsion preparation method is the addition of an aqueous solution of the amino-containing vinyl monomer as a separate feedstream, wherein the amine group in the said vinyl monomer is in the form of an amine-acid salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.