A silane compound including the following group A at a terminal:

##STR00001##

where R.sup.1 is each independently a group represented by (R.sup.4SiR.sup.3.sub.2).sub.maR.sup.3; R.sup.4 is each independently an oxygen atom or a C.sub.1-6 alkylene group; R.sup.3 is each independently a hydrocarbon group or R.sup.1; R.sup.1 has the same meaning as R.sup.1; ma is each independently an integer of 1 to 5, provided that the number of R.sup.1 in R.sup.1 is 20 or less; R.sup.2 is each independently a hydrocarbon group; na is an integer of 1 to 3; z is 0 or 1; and a Si atom to which a hydroxyl group or a hydrolyzable group is bonded, at another terminal.

The present invention relates to a composition comprising a) a polyorganosiloxane; b) filler particles; and c) a filler treating agent of Formula (I): (I) where R.sup.1, R.sup.1, R.sup.2, R.sup.2, m, n, p, and q are as defined herein. The composition is useful as a thermally conductive formulation.

##STR00001##

A photocurable silicone composition, containing: (A) an organopolysiloxane having at least one specific structure having a (meth)acryl group in the molecule; (B) an organohydrogenpolysiloxane having at least two hydrogen atoms bonded to a silicon atom in one molecule; (C) a photo-radical polymerization initiator; and (D) a platinum-group metal catalyst to be activated by light having a wavelength of 200 to 500 nm. The photocurable silicone composition has good storability, and good surface curability and deep-part curability in the air; an adhesive consisting of this photocurable silicone composition; and a cured material of this photocurable silicone composition.

A photocurable silicone composition, containing: (A) an organopolysiloxane having at least one specific structure having a (meth)acryl group in the molecule; (B) an organohydrogenpolysiloxane having at least two hydrogen atoms bonded to a silicon atom in one molecule; (C) a photo-radical polymerization initiator; and (D) a platinum-group metal catalyst to be activated by light having a wavelength of 200 to 500 nm. The photocurable silicone composition has good storability, and good surface curability and deep-part curability in the air; an adhesive consisting of this photocurable silicone composition; and a cured material of this photocurable silicone composition.

Segmented silicone polymers incorporating segments formed from medium-chain fatty acids are generally disclosed herein. Methods of using such compounds, for example, as surfactants, are also disclosed herein, as well as methods of making such compounds, for example, from medium-chain fatty acids derived from natural oils.

Segmented silicone polymers incorporating segments formed from medium-chain fatty acids are generally disclosed herein. Methods of using such compounds, for example, as surfactants, are also disclosed herein, as well as methods of making such compounds, for example, from medium-chain fatty acids derived from natural oils.

A new compound and a new composition useful as a surface treatment agent capable of forming a surface-treated layer having excellent abrasion resistance on a substrate are provided.

A compound represented by Formula (1-1) or Formula (1-2).

##STR00001##