Hydrophobically modified solution polymers and their use in surface protecting formulations
US7063895B2 · kind B2 · utility
68Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2001 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Aug 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to an aqueous polymer composition comprising a copolymer and water, the copolymer containing at least one hydrophilic base or acid-neutralizable monomer and at least one hydrophobic ethylenically unsaturated monomer. A film formed from the contains essentially no crosslinking. The polymer composition is formed by polymerizing the hydrophilic monomer and hydrophobic monomer in a non-aqueous solvent; forming an aqueous polymer dispersion from the non-aqueous polymer solution, and adding a base or acid to form an aqueous polymer composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.