Patent · US Expired

Storage stable, heat curable mixtures of polyisocyanate and polyol and process for their manufacture and use

US4400497A · kind A · utility

37Cited by

3References

9Claims

0Family size

Assignee

BASF SE

Inventors

Rainer Blum · Ludwigshafen, DE
August Lehner
Hans-Uwe Schenck · Monsheim, DE

Key dates

Filing date	Mar 11, 1982
Grant date	Aug 23, 1983
Priority date	—
Expiry date	Mar 11, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S528/902
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to mixtures comprising of PA0 (a) a polyisocyanate in the form of discrete particles having diameters of 0.1 to 150 microns which are deactivated at their surface such that from 0.5 to 20 equivalent percent of the total isocyanate groups present are deactivated; and PA0 (b) a polyol. These mixtures are useful as coatings and adhesives as well as gasket materials and are particularly useful as undercoating materials for automotive vehicles.

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