Claims
- 1. A method of treating textile fabrics with a waterproof coating comprising applying to the textile fabric a composition comprising 100 parts by weight of a curable polyurethane resin and from 25 to 100 parts by weight of an organosilicon compound consisting essentially of tetravalent SiO.sub.2 units and monovalent R.sub.3 SiO.sub.1/2 and R'R.sub.2 SiO.sub.1/2 units, the ratio of monovalent units to tetravalent units being from 0.4/1 to 2/1 and from 40 to 90% of all monovalent units present in the organosilicon compound being R'R.sub.2 SiO.sub.1/2 units, wherein R denotes a monovalent hydrocarbon group having up to 8 carbon atoms and R' denotes a polyoxyalkylene group which is terminated by a hydroxyl group and curing said composition to a film which adheres to the textile fabric.
- 2. A method of treating textile fabrics with a waterproof coating comprising forming a self supporting copolymer film from a composition comprising 100 parts by weight of a curable polyurethane resin and from 10 to 100 parts by weight of an organosilicon compound consisting essentially of tetravalent SiO.sub.2 units and monovalent R.sub.3 SiO.sub.1/2 and R'R.sub.2 SiO.sub.1/2 units, the ratio of monovalent units to tetravalent units being from 0.4/1 to 2/1 and from 40 to 90% of all monovalent units present in the organosilicon compound being R'R.sub.2 SiO.sub.1/2 units, wherein R denotes a monovalent hydrocarbon group having up to 8 carbon atoms and R' denotes a polyoxyalkylene group which is terminated by a hydroxyl group and laminating said preformed film onto the substrate or textile fabric.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9009409 |
Apr 1990 |
GBX |
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Parent Case Info
This is a divisional of copending application Ser. No. 07/672,993 filed on Mar. 21, 1991, now U.S. Pat. No. 5169906.
US Referenced Citations (3)
Foreign Referenced Citations (2)
Number |
Date |
Country |
63-179916 |
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JPX |
2087909 |
Nov 1980 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
672993 |
Mar 1991 |
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