Title:
TWO-COMPONENT PRIMERLESS URETHANE-ISOCYANURATE ADHESIVE COMPOSITION HAVING HIGH TEMPERATURE RESISTANCE
Document Type and Number:
Japanese Patent JP2673480
Kind Code:
B2
Abstract:
PURPOSE: To improve the high-temp. stability, shelf stability and adhesion of the subject composition by incorporating a specified urethane prepolymer component and a curing component.
CONSTITUTION: The urethane prepolymer component (A) is obtd. by reacting a prim. hydroxyl-ended intermediate having an average mol.wt. of 40.0 to 10,000 with a polyisocyanate of the formula: R(NCO)n (wherein R is a 2-20C aliph. group or 6 to 20C arom. group including an alkyl-substituted arom. group; and n is 2 to 4) in an equivalent ratio (NCO/OH) of 2.0 or higher. The component (A) is blended with (B) a curing component comprising a nitrogen-free polyol curing agent, a prim. polyamine, a trimerization catalyst and 0.05 to 7.5 wt.%, based on the total wt. of the curing component and the prepolymer component, of a phosphorus adhesive in such amts. that the equivalent ratio of free NCO groups to curing OH groups and NH groups in the component (B) is at least 1.2.
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Inventors:
Chia El Wan
RG Melby
William Cockaine
RG Melby
William Cockaine
Application Number:
JP35200392A
Publication Date:
November 05, 1997
Filing Date:
December 09, 1992
Export Citation:
Assignee:
The Encorp Incorporated
International Classes:
C08G18/08; C08G18/10; C08G18/16; C08G18/18; C08G18/22; C08G18/38; C08G18/48; C09J175/00; C09J175/04; (IPC1-7): C09J175/04; C08G18/10; C08G18/16; C08G18/48; C09J175/04
Domestic Patent References:
| JP52134645A | ||||
| JP53113895A |
Attorney, Agent or Firm:
Keisuke Ozawa
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