Polyurethane coated textile sheets

Details Polyurethane coated textile sheets Polyurethane coated textile sheets

1975-01-20

1976-10-05

Husack, Ralph

Stock material or miscellaneous articles

Composite

Of polyamidoester

156246, 156247, 427411, 427412, 428424, 428904, B32B 2740, D06N 304

Patent

active

039846075

ABSTRACT:
Polyurethane coated textile sheets are disclosed and a reversal process for their preparation, wherein the textile sheets are coated by means of a top coat solution with a polymer mixture comprising
I. 50 to 90% by weight, based on the total polymer, of a substantially linear polyurethane which is substantially free of reactive end groups and which has been prepared by a process which comprises reacting an organic dihyroxyl compound of molecular weight 500 to 4000 and an organic diol of molecular weight 60 to 450 with an aromatic diisocyanate,
Ii. 0 to 50% by weight of a vinyl copolymer, and
Iii. 1 to 50% by weight of a diene graft copolymer,
Said polymer mixture having been applied to a release substrate prior to said coating process.

REFERENCES:
patent: 3549404 (1970-12-01), Liberti et al.
patent: 3650880 (1972-03-01), Tieniber
patent: 3664979 (1972-05-01), Tanomura et al.
patent: 3794548 (1974-02-01), Wirth et al.
patent: 3871938 (1975-03-01), Takahasi et al.

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