Patent · US Expired

Surface-active phosphonic acid esters

US4385000A · kind A · utility

4Cited by

4References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Klaus Walz
Wilfried Nolte · Leverkusen, DE
Friedhelm Muller · Odenthal, DE

Key dates

Filing date	Mar 18, 1980
Grant date	May 24, 1983
Priority date	—
Expiry date	Mar 18, 2000

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S516/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

New surface-active phosphonic acid esters, which are inter alia suitable as emulsifiers and dispersants, a process for their preparation and emulsions and dispersions of water soluble polymers containing the new phosphonic acid esters and having high stability on storage.

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