Toray Silicone Company Limited

Katsutoshi Usui

Isao Ona

Masaru Ozaki

Yoichiro Taki

Silicone elastomeric films of 1 to 500 microns can be made by coating an addition-curable or dehydrocondensation-curable silicone elastomer composition on a coated paper which has a peeling resistance of no more than 50 g/cm, curing the composition, and then peeling the film from the coated paper. These thin silicone elastomeric films can be used for gas separation.

Method for producing thin silicone elastomeric films

Aqueous organopolysiloxane compositions are disclosed which are useful for durably treating substrates such as fibers, textiles and sheet-form materials. The aqueous organopolysiloxane compositions further contain an acid to adjust the pH of the composition to a non-basic value, an organic ester of titanic, zirconic or germanic acid and a surfactant to render the composition homogeneous. The organopolysiloxane contains monovalent hydrocarbon groups, aminohydrocarbon groups, hydroxy- or ether hydrocarbon groups and, optionally silicon-bonded hydroxyl and/or alkoxy groups.

Organopolysiloxane-containing composition for treating substrates

There is disclosed a composition of matter comprising an aminofunctional-radical-containing polydiorganosiloxane and carboxylfunctional-radical-containing polydiorganosiloxane. These compositions are useful for treating fibers to impart improved properties, such as pliability, smoothness, crease resistance, compression recovery and elongation recovery to fiber materials. The improved properties remain through washing and/or dry cleaning of the treated fiber materials.

Silicone compositions for the treatment of fibers

What is disclosed are organopolysiloxane latex compositions which are crosslinked by organofunctional silanes which compositions are useful for binding fiberglass fibers. Such compositions are, for example, N-(.beta.-aminoethyl)-.gamma.-aminopropyltrimethoxysilane crosslinked dimethylpolysiloxanes which have been prepared in emulsion using octamethylcyclotetrasiloxane and octylbenzenesulfonic acid.

Growing community of inventors

Ichihara, Japan

Katsutoshi Usui