Adhesive compositions

Details Adhesive compositions Adhesive compositions

C - Chemistry, Metallurgy

09

J

400/111, 117/30,

C09J 4/00 (2006.01) C08G 18/10 (2006.01) C08G 18/12 (2006.01) C08K 5/12 (2006.01) C08K 5/42 (2006.01) C09J 175/04 (2006.01)

Patent

CA 1277053

ABSTRACT Pressure-sensitive adhesives which are mixed immediately prior to application, or need drying equipment tend to be expensive in use while those applied as hot melts tend to have poor heat resistance. According to the invention an adhesive composition curable by atmospheric moisture is provided, the composition comprising a prepolymer component with isocyanate functionality between 2.0 and 3.0 together with one or more polyetherurethane prepolymers having NCO groups available for reaction with water for chain extension, the cured adhesive composition having a glass transistion temperature below 20°C.

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