Heterogeneous systems of polyol/diphenyl methane uret dione diis

Details Heterogeneous systems of polyol/diphenyl methane uret dione diis Heterogeneous systems of polyol/diphenyl methane uret dione diis

1982-08-02

1984-04-10

Cockeram, H. 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...

252182, 2643281, 26433116, 521 55, 521 58, 521160, 521161, 528 73, 528503, C08G 1877, C08G 1879, C08G 1824, C08G 1826

Patent

active

044422806

ABSTRACT:
Storage stable heterogeneous systems which may be processed at low temperatures to form polyurethanes are made by mixing a specific quantity of a high molecular weight polyhydroxyl compound with a specified quantity of a 4,4'-diphenyl methane uret dione diisocyanate corresponding to a specified formula or a corresponding modified diisocyanate. A lead and/or tin catalyst is also included.

REFERENCES:
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patent: 3475200 (1969-10-01), Kallert et al.
patent: 3793238 (1974-12-01), Winkelmann et al.
patent: 3997794 (1976-12-01), York et al.
patent: 3998794 (1976-12-01), Muller et al.
patent: 4022752 (1977-05-01), Horn et al.
patent: 4044171 (1977-08-01), Mueller et al.
patent: 4251427 (1981-02-01), Recker et al.
patent: 4251428 (1981-02-01), Recker et al.

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