Patent · US Expired

Method for preparing plastic foams

US4692474A · kind A · utility

7Cited by

9References

7Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Hans Mayer · Frankfurt am Main, DE
Rudolf Muhlhofer · Burghausen, DE
Bernward Deubzer · Burghausen, DE
Walter Mayerhofer · Marktl, DE

Key dates

Filing date	Jun 16, 1986
Grant date	Sep 8, 1987
Priority date	—
Expiry date	Jun 16, 2006

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2383/04
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Plastic foams are prepared by reacting a compound containing Si-bonded hydrogen and at least one SiC-bonded radical having a basic nitrogen atom in the same molecule with a hydroxyl-containing compound.

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