Patent · US Expired

Two component polyurethane sealant

US5611956A · kind A · utility

0Cited by

42References

9Claims

0Family size

Assignee

Bostik, Inc. · US

Inventors

Gerhard Piestert · Schwetzingen, DE
Bodo Müller · Tornesch, DE

Key dates

Filing date	Nov 24, 1992
Grant date	Mar 18, 1997
Priority date	—
Expiry date	Nov 24, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2200/0602
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Two-component polyurethane sealants, in particular for the direct glazing of motor vehicles, comprising (A) a pasty polyurethane component containing a polyurethane prepolymer having free isocyanate groups, and a curing agent, and (B) a pasty water-containing component, component (A) containing a blocked curing agent which can be liberated by water, and component (B) containing the water, reversibly bonded to a carrier substance which liberates the watering a delayed manner after components (A) and (B) have been mixed.

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