Silicone polymer encapsulated substrates

Details Silicone polymer encapsulated substrates Silicone polymer encapsulated substrates

D - Textiles, Paper

06

N

117/184, 117/88.

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

Patent

CA 1340808

A flexible porous substrate (i.e., leather, paper, and open-celled foamed structures) comprising a matrix having open cells therein is provided wherein the cells are partially lined with a silicone polymer. Most cells remain open, but are partially filled with silicone polymer. The substrate displays characteristics not achievable in prior art substrates treated with either fluorochemical or silicone polymer, such as higher water droplet contact angle, higher abrasion resistance, and higher water rewashability, yet breathability and water repellency remain excellent. The treated substrate can display hand characteristics similar to the hand of the untreated substrate. Optionally but preferably, the substrate is preliminarily uniformly impregnated with a fluorochemical. Also optionally, the substrate can be post treated with fluorochemical to improve characteristics, such as oil penetration and soil resistance. The substrate is produced by using a pressure impregnation technique upon a substrate using a curable silicone polymer composition.

593682

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