Fusion adhesive which can comprise an isocyanate prepolymer, a thermoplastic polymer and/or a lower molecular weight ketone resin
AssigneeH. B. Fuller Company
InventorsFerdinand Reischle, Jochen Windhoff, Walter Bernig
Life of this patent
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Abstract
The present invention relates to fusion adhesives characterized in that they comprise an isocyanate prepolymer, a thermoplastic polyurethane or polyester, and/or a lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
Claims21
A fusion adhesive which comprises 20-90 percent by weight isocyanate prepolymer, and 5-50 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenated products of acetophenone condensation resins, and mixtures thereof.
A fusion adhesive which comprises 50-75 percent by weight isocyanate prepolymer, and 10-40 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
A fusion adhesive which comprises 50-80 percent by weight isocyanate prepolymer, and 20-70 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
A fusion adhesive which comprises 20-90 percent by weight isocyanate prepolymer and 10-70 percent by weight thermoplastic polyester.
A method of bonding substrates which comprises contacting a substrate with a bond-forming amount of a fusion adhesive comprising 20-90 percent by weight isocyanate prepolymer and 5-50 percent by weight lower molecular weight synthetic resin selected from the group consisting of ketone resins, hydrogenation products of acetophenone condensation resins, and mixtures thereof.
A method of bonding substrates which comprises placing a bond-forming amount of a fusion adhesive comprising 20-90 percent by weight isocyanate prepolymer, 0-50 percent by weight lower moleclar weight synthetic resin, and 10-70 percent by weight thermoplastic polyesters between a first substrate and a second substrate and contacting one of the first and second substrates with the other of the first and second substrates, wherein one of the first and second substrates comprises a foam material and the other of the first and second substrates comprises a material selected from the grop consisting of foam materials, non-woven materials and textiles.
Dependencies are inferred from the claim text.