Chisso Corporation

Jnc Corporation

Nihon Yamamura Glass Co., Ltd.

Yuichi Isoda

Kozaburo Matsumura

Koichi Ayama

Takuya Shindo

Midori Sato

Tomoyuki Ohba

Disclosed herein are a phenyl-modified hybrid prepolymer, a phenyl-modified polydimethylsiloxane-based hybrid prepolymer, and a phenyl-modified polydimethylsiloxane-based hybrid polymer capable of controlling material hardness or surface tackiness depending on the intended use or purpose. A phenyl-modified hybrid prepolymer (B) is prepared by subjecting polydimethylsiloxane having trialkoxysilyl groups at both ends, phenyltrialkoxysilane, and diphenyldialkoxysilane to hydrolysis and condensation reaction. A phenyl-modified polydimethylsiloxane-based hybrid prepolymer (C) comprises (B), and is preferably prepared by mixing (B) and a phenyl-modified hybrid prepolymer (A) prepared by condensation reaction between polydimethylsiloxane having silanol groups at both ends and phenyltrialkoxysilane. The phenyl-modified polydimethylsiloxane-based hybrid polymer is obtained by heating and solidifying (C).

Phenyl-modified hybrid prepolymer, phenyl-modified polydimethylsiloxane-based hybrid prepolymer, and phenyl-modified polydimethylsiloxane-based hybrid polymer, and production processes therefor

Aqueous solution of aminated silanol compound, use thereof, and process for producing the same

According to the present invention there is disclosed a process for producing a fluorine-containing siloxane compound represented by the formula (3): ##STR1## �wherein A is a fluorine-containing organic group represented by the formula (4): ##STR2## (wherein R.sup.1 and R.sup.2 are each independently a fluorine atom or a trifluoromethyl group, R.sup.3 is a hydrogen atom or a straight chain or branched chain hydrocarbon group having 1 to 8 carbon atoms, k is an integer of 0 to 16, m is an integer of 0 to 30, n is 0 or 1, and p is an integer of 0 to 9); r is an integer of 1 to 3; R.sup.4 is a monovalent hydrocarbon group having 1 to 6 carbon atoms; and B.sup.1 is a hydrogen atom, a methacryloxypropyl group or a vinyl group!, which process comprises reacting a fluorine-containing silane represented by the formula (1): ##STR3## (wherein R.sup.1, R.sup.2, R.sup.3, k, m, n and p have the same definitions as given above) with a chlorosilane represented by the formula (2): ##STR4## (wherein R.sup.4, B.sup.1 and r have the same definitions as given above). There is also disclosed a fluorine-containing siloxane compound of the formula (3) wherein B.sup.1 is an isocyanate-containing group.

Fluorine-containing siloxane compound and process for production thereof

Growing community of inventors

Kumamoto, Japan

Yuichi Isoda