Patent · US Expired

Acrolein-releasing emulsion homopolymers

US5917094A · kind A · utility

4Cited by

3References

13Claims

0Family size

Assignee

Degussa-Huels AG · DE

Inventors

Peter Werle · Gelnhausen, DE
Hans-Peter Krimmer · Burgkirchen an der Alz, DE
Martin Trageser · Gelnhausen, DE

Key dates

Filing date	Dec 16, 1997
Grant date	Jun 29, 1999
Priority date	—
Expiry date	Dec 16, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2/14
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Acrolein-releasing emulsion homopolymers release acrolein in aqueous systems. They are produced by adding acrolein, at least 95% by weight pure, to a solution of an alkali hydroxide, with the temperature not exceeding 25.degree. C. during the addition, and then adjusting the pH to 5 to 7 by adding a mineral acid.

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