Water soluble polymeric compositions
US4835206A · kind A · utility
226Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Sep 30, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/931
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A homogenous blend is formed of different water soluble polymer types, for instance of particular addition and condensation polymers, by forming one of the polymers from its monomeric starting material by polymerisation in a solution of the other polyer. The resultant solution has a concentration of above 10% but is homogenous. It can be used as a bulk solution or can be dried to powder or can be present as a reverse phase dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.