Patent · US Expired

Stable polymer gels

US4160754A · kind A · utility

36Cited by

1References

12Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Dietmar Schapel · Cologne, DE
Kuno Wagner · Leverkusen, DE
Hanns P. Muller · Leverkusen, DE
Manfred Dahm · Leverkusen, DE

Key dates

Filing date	Mar 13, 1978
Grant date	Jul 10, 1979
Priority date	—
Expiry date	Mar 13, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S524/916
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

This invention is directed to gels which are stable in storage, comprising a polymer matrix, a liquid dispersing agent embedded therein and optionally fillers or additives, characterized in that said polymer matrix is a polycondensation product of aldehydes and aminoplast-formers, at least 30% by weight of the aminoplast-formers having a molecular weight of between 200 and 10,000 and containing at least one ether, thioether, acetal, ester, urethane and/or carbonate group.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.