Polyurethane reactive adhesive compounds containing finely dispersed polymers
First Claim
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1. A polyurethane reactive adhesive compound comprising:
- A) one or more polyisocyanates having an inactivated particle surface,B) at least one isocyanate reactive compound having a molecular weight MGw greater than 400, andC) finely dispersed polymer particles, wherein the polymer is solid at temperatures below 70°
C. and has a molecular weight MGw of at least 3000, and selected from the group consisting of a linear hydroxypolyurethane, a copolyamide, a copolymer of α
-olefins, a polyvinyl alcohol, a polyvinyl formal, a polyvinyl acetal, a substantially linear polyester, a copolymer of acrylonitrile, butadiene and styrene having a polybutadiene content of 0.1 50% by weight, a (co)polymer of polyvinyl chloride, polyethylene, a copolymer of styrene and acrylonitrile.
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Abstract
The present invention is directed to a polyurethane reactive adhesive compound comprising:
A) one or more polyisocyanates having an inactivated particle surface,
B) at least one isocyanate reactive compound having a molecular weight MGw greater than 400, and
C) finely dispersed polymer particles, wherein the polymer is solid at temperatures below 70° C. and has a molecular weight MGw of at least 3000.
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Citations
10 Claims
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1. A polyurethane reactive adhesive compound comprising:
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A) one or more polyisocyanates having an inactivated particle surface, B) at least one isocyanate reactive compound having a molecular weight MGw greater than 400, and C) finely dispersed polymer particles, wherein the polymer is solid at temperatures below 70°
C. and has a molecular weight MGw of at least 3000, and selected from the group consisting of a linear hydroxypolyurethane, a copolyamide, a copolymer of α
-olefins, a polyvinyl alcohol, a polyvinyl formal, a polyvinyl acetal, a substantially linear polyester, a copolymer of acrylonitrile, butadiene and styrene having a polybutadiene content of 0.1 50% by weight, a (co)polymer of polyvinyl chloride, polyethylene, a copolymer of styrene and acrylonitrile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification