Neutral-coloured 1k polyurethane adhesive

Details Neutral-coloured 1k polyurethane adhesive Neutral-coloured 1k polyurethane adhesive

C - Chemistry, Metallurgy

08

G

C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/12 (2006.01) C08G 18/32 (2006.01) C08G 18/40 (2006.01) C08G 18/48 (2006.01) C08G 18/50 (2006.01) C08G 18/66 (2006.01) C08G 18/67 (2006.01) C08G 18/76 (2006.01) C08G 65/332 (2006.01) C08G 65/333 (2006.01) C08K 7/02 (2006.01) C09D 5/44 (2006.01) C09D 175/16 (2006.01) C09J 175/08 (2006.01)

Patent

CA 2485447

The invention relates to a polyurethane prepolymer, which can be produced from at least one polyisocyanate that is symmetrically substituted in terms of its NCO groups, at least one polyisocyanate that is asymmetrically substituted in terms of its NCO groups, at least one polyol with an OH functionality of more than 2.5 and at least one polyol with an OH functionality of less than 2.5. The invention also relates to a method for producing a polyurethane prepolymer of this type, to an adhesive containing at least one polyurethane prepolymer of this type and to the use thereof.

L'invention concerne un prépolymère de polyuréthanne qui peut être produit à partir d'au moins un polyisocyanate à substitution symétrique en ce qui concerne ses groupes NCO et d'au moins un polyisocyanate à substitution asymétrique en ce qui concerne ses groupes NCO, d'au moins un polyol à fonctionnalité OH supérieure à 2,5 et d'au moins un polyol à fonctionnalité OH inférieure à 2,5. L'invention concerne également un procédé pour la production d'un tel prépolymère de polyuréthanne, un adhésif contenant au moins un tel prépolymère de polyuréthanne et son utilisation.

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