Absorbent products and their manufacture
US5280079A · kind A · utility
92Cited by
19References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1992 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | May 18, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/919
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water absorbent water insoluble polymeric element, such as a fibre, film, coating, bonding layer or foam, is made by forming a substantially linear polymer by polymerisation of water soluble ethylenically unsaturated monomer blends comprising carboxylic and hydroxylic monomers and then reacting the carboxylic and hydroxylic monomers in the linear polymer to form internal cross links within the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.