Moisture cured reactive hot melt adhesive with monofunctional reactants as grafting agents
First Claim
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1. A reactive hot melt adhesive composition prepared from a mixture comprising one or more polyisocyanates;
- one or more polyols, wherein no polyol is a crystalline polyol;
about 0.1 wt % to about 20 wt % of one or more crystalline monofunctional reactants; and
a functional thermoplastic polymer selected from acrylic polymers, functional acrylic polymers, hydroxy functional acrylic polymers, polyvinyl acetate, polyvinyl chloride, methylene polyvinyl ether, cellulose acetate, styrene acrylonitrile, amorphous polyolefin, thermoplastic urethane, polyacrylonitrile, polybutadiene, isobutylene diol and mixtures thereof;
wherein the adhesive composition does not include crystalline polyols.
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Abstract
High green strength reactive hot melt adhesives are prepared using crystalline monofunctional reactants.
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Citations
4 Claims
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1. A reactive hot melt adhesive composition prepared from a mixture comprising one or more polyisocyanates;
- one or more polyols, wherein no polyol is a crystalline polyol;
about 0.1 wt % to about 20 wt % of one or more crystalline monofunctional reactants; and
a functional thermoplastic polymer selected from acrylic polymers, functional acrylic polymers, hydroxy functional acrylic polymers, polyvinyl acetate, polyvinyl chloride, methylene polyvinyl ether, cellulose acetate, styrene acrylonitrile, amorphous polyolefin, thermoplastic urethane, polyacrylonitrile, polybutadiene, isobutylene diol and mixtures thereof;
wherein the adhesive composition does not include crystalline polyols. - View Dependent Claims (2, 3, 4)
- one or more polyols, wherein no polyol is a crystalline polyol;
Specification