Chemically hardening two-component materials based on polyuretha

Details Chemically hardening two-component materials based on polyuretha Chemically hardening two-component materials based on polyuretha

1984-12-13

1987-06-09

Cockeram, Herbert S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

525458, 528 59, 528 60, 528 44, C08G 1844, C08G 1848, C08G 1842, C08G 1862

Patent

active

046721002

ABSTRACT:
A chemically-hardening two-component material based on polyurethane is provided, having a first component being a prepolymer with isocyanate end groups and a second component being a product which has been obtained from that prepolymer with isocyanate end groups by reacting it with a reactive compound which has at least two active groups, containing active hydrogen and which do not react identically with isocyanate. The prepolymer is a reaction product of an aliphatic or aromatic di-isocyanate with a polyol.
Such a material can be produced by reacting a prepolymer which contains isocyanate end groups, with a second component, which, in turn, has resulted from a prepolymer with isocyanate end groups by reacting with a reactive compound which has at least two molecule groups, containing hydrogen and reacting differently with isocyanate. The material is especially suitable as a self-hardening gluing, coating, sealing and molding material.

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