Patent · US Expired

Process for the manufacture of elastic polyurethane foams capable of being flame laminated and high frequency welded

US4306037A · kind A · utility

1Cited by

3References

4Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Klaus Konig · Leverkusen, DE
Peter Seifert · Wittlich, DE
Wolfgang Reichmann · Goldkronach, DE
Hans-Walter Illger · Rösrath, DE
Heinz Muller · Krefeld, DE

Key dates

Filing date	Sep 2, 1980
Grant date	Dec 15, 1981
Priority date	—
Expiry date	Sep 2, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2110/0083
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The instant invention is directed to a process for the production of elastic polyurethane foams capable of being flame laminated and high frequency welded, comprising reacting PA0 (a) polyisocyanates with PA0 (b) polyethers having a molecular weight of from 400 to 10,000 and having at least two hydroxyl groups and PA0 (c) hydroxy-pivalic acid neopentylglycol ester of the formula: ##STR1## used in a quantity of from 1 to 20% by weight, based on the hydroxyl polyether, in the presence of a blowing agent. The instant invention is also directed to the polyurethane foams prepared thereby.

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