Hot and cold water redispersible polyvinyl acetate adhesives
US4251400A · kind A · utility
68Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Sep 10, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3192
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to polyvinyl acetate adhesives redispersible in hot and cold water in the dried film form.The adhesives comprise an emulsion of a polyvinyl acetate, an anti-coalescing polyvinylpyrrolidone and a non-volatile, water-soluble plasticizer for said anti-coalescing agent that is immiscible with the polyvinyl acetate resin, said plasticizer being present in amount to impart flexibility to the dried adhesive film and the ratio of polyvinyl acetate to anti-coalescing agent not exceeding about 8 parts by weight for each part by weight of agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.