Patent · US Expired

Halogenated polyether-polyols and polyurethane foams manufactured from the latter

US4020024A · kind A · utility

10Cited by

3References

22Claims

0Family size

Assignee

Solvay & Cie · BE

Inventors

Rene Walraevens · Jette, BE
Andre Collin · Ligny, BE

Key dates

Filing date	Oct 23, 1974
Grant date	Apr 26, 1977
Priority date	—
Expiry date	Oct 23, 1994

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/6795
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Halogenated polyether-polyols lacking terminal primary chlorohydrin and hydroxyl groups are reacted with organic isocyanates to produce semi-rigid or rigid polyurethane foam having excellent physical, mechanical and processing characteristics and good fire-resistance. The polyether-polyols are used individually, as admixtures with each other and/or as admixtures with non-halogenated polyether-polyols.

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