Patent · US Expired

Sealants and adhesives and the use thereof

US4950715A · kind A · utility

17Cited by

2References

7Claims

0Family size

Assignee

Teroson GmbH · DE

Inventors

Edward W. Duck · Leimen, DE
Ingolf Scheffler · Wiesloch, DE
Michael Hirthammer · Heidelberg, DE
Norman Blank · Wayne, US

Key dates

Filing date	Dec 16, 1988
Grant date	Aug 21, 1990
Priority date	—
Expiry date	Dec 16, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2190/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Heat- and moisture hardening, one component polyurethane sealants and adhesives based on telechelic isocyanate prepolymers made from aromatic diisoyanates in stoichiometric excess and polyols comprise (a) a catalyst for moisture-hardening and (b) a blocked cross-linking agent activatable by heating, particularly a methylene dianiline/sodium chloride complex compound or a polyamino- or hydroxy-functional compound in microencapsulated form.

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