Patent · US Expired

Production of flexible polyurethane foams

US6770684B2 · kind B2 · utility

1Cited by

5References

13Claims

0Family size

Assignee

BASF SE

Inventors

Heinz-Dieter Lutter · Diepholz, DE
Bernd Bruchmann · Ludwigshafen, DE
Klaus Wagner · Warthausen, DE
Jens Müller · Haan, DE

Key dates

Filing date	Mar 12, 2002
Grant date	Aug 3, 2004
Priority date	—
Expiry date	Aug 17, 2022

Classification

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

Abstract

The present invention relates to a process for the production of flexible polyurethane foams by reaction ofa) at least one compound having at least two isocyanate-reactive hydrogen atoms, withb) polyisocyanates,wherein the compund used as said compound having at least two isocyanate-reactive hydrogen atoms a) comprises at least one block polyoxypropylene/polyoxyethylene/polyol having a hydroxyl value of from 25 to 45 mg KOH/g and a content of terminally bound ethylene oxide units of from 15 to 17 wt %, based on the total amount of the alkylene oxide, obtained by attachment of ethylene oxide and propylene oxide to an initiator having an average functionality of 3.

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