Polymeric bland of a matrix resin and absorbent resin and a multivalent metal ion crosslinking agent
US5376727A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1993 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Jul 9, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31768
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A composition comprising a blend of (a) a polymeric matrix component comprising crosslinkable polymers made from 80 to 99 parts by weight of at least one .alpha.,.beta.-ethylenically unsaturated monomer and from 1 to 20 parts by weight of at least one chelating compound, (b) a liquid-absorbent component comprising a water-absorbent, preferably water-soluble, polymer, and (c) a multivalent metal ion as a crosslinking agent. This composition is capable of forming liquid-absorbent, semi-interpenetrating networks. The composition of this invention can provide polymeric matrices which, when coated on a transparent backing, result in transparent coatings capable of providing improved combinations of ink absorption and durability, while at the same time retaining transparency and being amenable to the types of processing commonly used in producing transparent graphical materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.