Patent · US Expired

Manufacture of polyurethane compositions

US4049590A · kind A · utility

13Cited by

12References

16Claims

0Family size

Assignee

BASF SE

Inventors

Georg Falkenstein
Dieter Stein
Franz Haaf · Bad Dürkheim, DE
Gerhard Heinz · Bad Dürkheim, DE
Ernst Schoen · Diepholz, DE

Key dates

Filing date	Nov 24, 1975
Grant date	Sep 20, 1977
Priority date	—
Expiry date	Nov 24, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L75/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polyurethane compositions -- which may or may not be foamed -- having improved mechanical properties are manufactured from organic polyisocyanates, polyhydroxy compounds and one or more at least partially crosslinked, particulate polymers of particle size from 500 to 5,000 A, of which polymer from 1 to 40% by weight are dispersed in the polyhydroxy compound.

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