Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1989-03-10
1991-04-02
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
427358, 427387, 427412, 428248, 428252, 428260, 428272, 428274, 428286, 428287, 428290, 4283066, 4283084, 4283111, 4283115, 4283117, 428447, 428904, 428913, B32B 532, D06M 15643, D06M 1570
Patent
active
050046438
ABSTRACT:
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.
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"Vapor-Permeable, Water-Resistant Fabrics", American Dyestuff Reporter, Jan. 30, 1967, pp. 25-29.
Uvinul UV Inhibitors for Cosmetics, Plastics, Coatings, Textiles; BASF Corporation, Rensselaer, NY.
Cannon James C.
Sili-Tex, Inc.
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