Polyurethane adhesive compositions modified with dicarbamate...

C - Chemistry – Metallurgy – 08 – G

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402/125, 154/107

C08G 18/10 (2006.01) C08G 18/32 (2006.01) C08G 18/80 (2006.01) C09J 175/04 (2006.01)

Patent

CA 1167993

ABSTRACT OF THE DISCLOSURE . A modified polyurethane adhesive composition characterized by its improved bond strength and curing properties contains an isocyanate- terminated prepolymer and from 2.5 to 100% by weight, based on the pre- polymer, of a dicarbamate ester compatible with the prepolymer and con- taining two free isocyandte groups. The resultant adhesive is suitable for hot-melt applications in bonding flexible substrates.

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