Patent · US Expired

Process for the preparation of polyurethane foam

US4143004A · kind A · utility

8Cited by

7References

5Claims

0Family size

Assignee

Berol Kemi AB

Inventors

Mats Stromblad · Båstad, SE
Bo Idstrom · Stenungsund, SE

Key dates

Filing date	Sep 29, 1977
Grant date	Mar 6, 1979
Priority date	—
Expiry date	Sep 29, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S521/905
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process is provided for the preparation of soft hydrophilic polyurethane foam using a polyether polyol mixture having a high proportion of primary alcohol groups and a selected ratio of polyisocyanate to polyol.

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