Toray Silicone Company Limited

Tsuneo Maruyama

Katsutoshi Mine

Kazuhide Takeshita

Yoshitaka Kubota

This invention deals with siloxane compositions which can be readily converted to elastomers or resins at normal curing temperatures but will ceramify upon firing to higher temperatures to give flexible ceramics having electrical insulating properties and excellent physical properties.

Siloxane compositions which can be ceramified at high temperatures

What is disclosed is a composition of matter which is a siloxane copolymer, a siloxane polymer, a ceramic forming filler and a peroxide which upon heating to 500.degree. C. or greater forms a pliable, flexible ceramic material which is useful as insulative coatings on various electrical conductive substances such as electric wires and cables.

Siloxane compositions which form ceramics at high temperatures

A noncurable sealing material from a hydroxyl end-blocked polydiorganosiloxane, a filler and a silane or siloxane with two hydrolyzable groups having silicon-nitrogen bonds or silicon-oxygen-nitrogen bonds. The material when mixed and stored under substantially anhydrous conditions remains fluid but when exposed to the moisture in air increases in viscosity to form a sealing material which is uncured.

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Ichihara, Japan

Tsuneo Maruyama