MOISTURE CURABLE HOT MELT ADHESIVE
First Claim
1. A moisture reactive hot melt adhesive composition prepared from an isocyanate, a polyol selected from a linear polyether containing substantially no functional group other than hydroxyl groups, a branched polyether containing substantially no functional group other than hydroxyl groups, a polyoxyalkylene polyol, a homopolymer or a copolymer of a polyoxyalkylene polyol, a polyisobutylene diol, a polyamide polyol, a fatty polyol, castor oil, and mixtures thereof, and a multifunctionally modified polyolefin other than a silyl modified polyolefin.
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Accused Products
Abstract
Moisture curable hot melt adhesive compositions that contain functionally modified polyolefins and have improved green strength before set are prepared without using added crystalline polyester polyol.
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Citations
17 Claims
- 1. A moisture reactive hot melt adhesive composition prepared from an isocyanate, a polyol selected from a linear polyether containing substantially no functional group other than hydroxyl groups, a branched polyether containing substantially no functional group other than hydroxyl groups, a polyoxyalkylene polyol, a homopolymer or a copolymer of a polyoxyalkylene polyol, a polyisobutylene diol, a polyamide polyol, a fatty polyol, castor oil, and mixtures thereof, and a multifunctionally modified polyolefin other than a silyl modified polyolefin.
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13. A moisture reactive, hot melt adhesive composition prepared from a mixture comprising an isocyanate;
- a polyol selected from at least one of a linear polyether polyol containing substantially no functional group other than hydroxyl groups, a branched polyether polyol containing substantially no functional group other than hydroxyl groups, a polyoxyalkylene polyol, a homopolymer or a copolymer of a polyoxyalkylene polyol, a polyisobutylene diol, a polyamide polyol and a fatty polyol; and
a multifunctionally modified polyolefin other than a silyl modified polyolefin. - View Dependent Claims (14, 15)
- a polyol selected from at least one of a linear polyether polyol containing substantially no functional group other than hydroxyl groups, a branched polyether polyol containing substantially no functional group other than hydroxyl groups, a polyoxyalkylene polyol, a homopolymer or a copolymer of a polyoxyalkylene polyol, a polyisobutylene diol, a polyamide polyol and a fatty polyol; and
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16. A moisture reactive, hot melt adhesive composition prepared from a mixture comprising an isocyanate;
- a polyol selected from at least one of a linear polyether containing substantially no functional group other than hydroxyl groups, a branched polyether containing substantially no functional group other than hydroxyl groups, a polyoxyalkylene polyol, a homopolymer or a copolymer of a polyoxyalkylene polyol, a polybutadiene polyol, a polyisobutylene diol, a polyamide polyol and a fatty polyol;
oxidized polyethylene; and
optionally a thermoplastic material.
- a polyol selected from at least one of a linear polyether containing substantially no functional group other than hydroxyl groups, a branched polyether containing substantially no functional group other than hydroxyl groups, a polyoxyalkylene polyol, a homopolymer or a copolymer of a polyoxyalkylene polyol, a polybutadiene polyol, a polyisobutylene diol, a polyamide polyol and a fatty polyol;
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17. A moisture reactive hot melt adhesive composition having an open time greater than or equal to 30 minutes and comprising a reaction product of a mixture consisting essentially of an isocyanate, a polyol selected from a linear polyether containing substantially no functional group other than hydroxyl groups, a branched polyether containing substantially no functional group other than hydroxyl groups, a polyoxyalkylene polyol, a homopolymer or a copolymer of a polyoxyalkylene polyol, a polyisobutylene diol, a polyamide polyol, a fatty polyol, castor oil, and mixtures thereof, and a multifunctionally modified polyolefin other than a silyl modified polyolefin.
Specification