Patent · US Expired

Water-blown foams of low apparent density

US6822011B2 · kind B2 · utility

1Cited by

4References

18Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Rolf Albach · Recklinghausen, DE
Eduard Mayer · Dormagen, DE
Juan Cirujeda-Ranzenberger · Barcelona, ES

Key dates

Filing date	Oct 29, 2002
Grant date	Nov 23, 2004
Priority date	—
Expiry date	Jan 24, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2220/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to foam having an apparent density of less than 100 kg/m3, in which water is predominantly used as the blowing agent, and to products that contain such foams. The mentioned foams have a large proportion of open cells (>80%).

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