Two component polyurethane sealant
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United States of America Patent
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Mar 18, 1997
Issued Date -
N/A
app pub date -
Nov 24, 1992
filing date -
Sep 10, 1990
priority date (Note) -
Expired
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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.
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