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US 2005/0033004 A1Published application
Reactive hot melt adhesive
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsHorst Hoffmann, Uwe Franken, Michael Krebs
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Abstract
One-component moisture-curing hot melt adhesive compositions based on reaction products from di- or polyisocyanates and polyether-polyols, crystalline or partly crystalline polyester-polyols and low molecular weight polymers from olefinically unsaturated monomers and optionally hydroxylated tackifying resins are suitable for high-strength and ageing-resistant gluing of profiles of plastics to one- or multilayer acrylate films
Claims18
A one-component, moisture-curing polyurethane hot melt adhesive comprising at least one reaction product with reactive NCO groups produced by reaction of
- a) at least one di- or polyisocyanate;
- b) at least two diols selected from the group consisting of polyether-polyols and alkylene diols, wherein at least one diol has an average molecular weight above 1,000 and at least one diol has an average molecular weight below 1,000;
- c) at least one crystalline or partly crystalline polyester-polyol;
- and
- d) at least one low molecular weight polymer obtained by polymerization of one or more olefinically unsaturated monomers.
2 more elements
Dependencies are inferred from the claim text.