Absorbing materials containing polycarboxylic acid polymers
US7915365B2 · kind B2 · utility
3Cited by
5References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Sep 30, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F22/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to methods of forming absorbent materials and polymers used in absorbent materials, which are based upon vinyl type monomers that contain pendant carboxylic acid groups and ester group functionality. The polymers may be prepared under selected conditions of partial neutralization to provide relatively high conversions and/or relatively high values of molecular weight and/or selected amounts of repeating unit tacticity. The polymers may then be used in absorbing materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.