Silicone polymer-internally coated webs

Details Silicone polymer-internally coated webs Silicone polymer-internally coated webs

D - Textiles, Paper

06

N

117/184, 117/88.

D06N 3/12 (2006.01) B05C 11/04 (2006.01) C09D 183/07 (2006.01) D06M 15/643 (2006.01)

Patent

CA 1338232

An improved process is provided for treating a porous web (especially fabric) to produce a novel silicone polymer internally coated web. In the process, a starting curable liquid silicone polymer is coated under pressure upon one surface of the web, and the web is then subjected to localized shear forces sufficient to move the silicone polymer composition into interior portions of the web and to distribute the silicone polymer composition generally uniformly therwithin in such planar region. Excess silicone polymer composition is wiped away from a web surface. Thereafter, the resulting web is heated or irradiated to cure the silicone polymer. Preferably a web is preliminarily impregnated with a fluorochemical. Webs procuded by this process are breathable, waterproof or highly water repellent, and flexible.

593680

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