Shin-etsu Chemical Co., Ltd.

Masato Kawakami

Ayumu Kiyomori

Tohru Kubota

Yoichi Tonomura

Shotaro Aoki

Takayuki Honma

Koichi Nakazawa

Naoki Yamauchi

A cyclic silazane compound having an alkoxysilyl group, represented by the following general formula (1): wherein R, R, Rand Reach independently represent an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, Rrepresents a divalent hydrocarbon group having 4 to 20 carbon atoms, which may contain a sulfur atom, an ester bond or a urea bond, Rrepresents a hydrogen atom or an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, m is 0 or 1, and n is 0, 1 or 2.

Cyclic silazane compound having alkoxysilyl group, method for producing same, and composition, cured product and covered substrate containing same

Diterminally amine-modified perfluoropolyether compounds of the general formula (wherein Rf is a perfluoropolyether group; each Ris independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms; R, Rand Rare each independently substituted or unsubstituted monovalent hydrocarbon groups of 1 to 10 carbon atoms; each Ris independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms; each Ris independently a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group of 1 to 50 carbon atoms which may include at least one oxygen, nitrogen, sulfur or silicon atom; each occurrence of 'm' is independently 0, 1 or 2; and each occurrence of ‘n’ is independently an integer from 0 to 8) are provided. Such compounds have a good solubility in solvents and reactive resins.

Diterminally amine-modified perfluoropolyether compound and preparation thereof, and liquid-repelling composition, cured product and coated substrate containing the same

Diterminally silanol-modified perfluoropolyether compounds of the general formula (1) (wherein each Ris independently an unsubstituted divalent hydrocarbon group of 1 to 10 carbon atoms, each Ris independently a substituted or unsubstituted monovalent hydrocarbon group of 1 to 10 carbon atoms, Rf is a perfluoropolyether group, and 'n' is independently at each occurrence an integer from 0 to 8) are provided. Such compounds, when reacted as an intermediate with a reactive silicon compound, afford compounds of excellent durability.

Diterminally silanol-modified perfluoropolyether compound and preparation thereof

The adhesive composition includes: a cyclic organosilazane compound of the following general formula (1): wherein Rs each independently represent a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, and p represents an integer of 3 to 8; and a hydrolyzable group-containing organosilicon compound containing an alkoxysilane compound of the following general formula (2) and/or a partial hydrolytic condensate thereof:R&#x2014;Si(OR)&#x2003;&#x2003;(2)wherein Rrepresents an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms and optionally having an oxygen atom, Rrepresents an unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, and x represents an integer of 0 to 2.

Adhesive composition, covering substrate, and cured product

A polysiloxazane compound having an alkoxysilyl group having an average composition of formula (1): wherein Rrepresents a monovalent hydrocarbon group. Rrepresents a monovalent hydrocarbon group, Rrepresents an unsubstituted monovalent hydrocarbon group, Rrepresents a divalent hydrocarbon group having 2 to 20 carbon atoms, X represents a methyl group, Y represents a group of formula (2) or (3) below: (Ris same as above. Rand Rrepresent a monovalent hydrocarbon group, Z represents a divalent hydrocarbon group and the like, p is an integer of 0 to 9, and q is 0, 1, or 2.),

Polysiloxazane compound having alkoxysilyl group, process for producing same, and composition and cured product including same

An alkoxysilyl group-containing organic silazane compound having an average composition represented by formula (1) below: wherein Ris a monovalent hydrocarbon group, Ris a divalent hydrocarbon group, Y is a group represented by formula (6) or (7) below: wherein R, R, and Rare a monovalent hydrocarbon group, X is an oxygen atom or a divalent hydrocarbon group, p is an integer of 0 to 9, and n is 0, 1, or 2, Ris a monovalent hydrocarbon group, m is 0 or 1, r is 0, 1, or 2, and a and b are numbers which satisfy 0&#x3c;a&#x2264;1, 0&#x2264;b&#x3c;1, and a+b=1.

Alkoxysilyl group-containing organic silazane compound, method for producing same, composition containing same and cured product

A polysiloxazane compound including a repeating unit of the following general formula (1), and having a number average molecular weight of 500 to 100,000 as measured by gel permeation chromatography versus polystyrene standards, wherein Rand Reach independently represent a substituted or unsubstituted C-Cmonovalent hydrocarbon group optionally containing a hetero atom, Xs each independently represent a methyl group, an oxygen atom, NH&#x2014;SiX, or (NH)&#x2014;SiRR(Rand Rhave the same meaning as provided above), or Xs are joined to one another to represent an oxygen atom, n is an integer of 0 to 8, when the number of NH&#x2014;SiXis denoted by p, p satisfies 0&#x2264;p/(2n+4)&#x2264;0.5, r is an integer of 0, 1, or 2, and a and b are numbers satisfying 0&#x3c;a&#x2264;1, 0&#x2264;b&#x3c;1, and a+b=1.

Polysiloxazane compound, method for producing the same, and composition containing the same and cured product thereof

A polysilazane composition comprising an organopolysilazane compound free of Si&#x2014;H structure and an organoxysilane compound having at least two silicon atoms in the molecule does not release hazardous substances such as hydrogen or require reactive solvents.

Polysilazane composition, coated substrate, and multilayer construction

A bissilylamino group-containing organic polysilazane compound having an average composition represented by general formula (1) below: wherein Ris a monovalent hydrocarbon group, Ris a divalent hydrocarbon group, Rand Rare a monovalent hydrocarbon group, Rand Roptionally bond each other to form a ring structure together with a silicon atom to which Rand Rare bonded and a nitrogen atom to which the silicon atom is directly bonded, Ris a monovalent hydrocarbon group, p is 0 or 1, q is 0, 1, or 2, and a and b are numbers which satisfy 0&#x3c;a&#x2264;1, 0&#x2264;b&#x3c;1, and a+b=1,

Bissilylamino group-containing organic polysilazane compound, method for producing same, and composition containing same and cured product

A composition is provided comprising (a) a polysilazane having a monovalent hydrocarbon group, (b) untreated metal oxide nanoparticles, metal oxide nanoparticles having a monovalent hydrocarbon group, or metal oxide nanoparticles having an alkylsilyl or alkoxysilyl group, and (c) an aprotic solvent. The composition has storage stability and is suitable for forming a film having water repellent, especially superhydrophobic properties.

Water repellent film-forming composition and water repellent film

A composition consisting essentially of 90-99 parts by weight of a nitrogen-containing organoxysilane compound and 1-10 parts by weight of an isomer affords an appropriate cure behavior and is useful as paint additive, adhesive, silane coupling agent, textile treating agent, and surface treating agent.

Composition containing nitrogen-containing organoxysilane compound and method for making the same

A method for producing a cyclic aminoorganoxysilane compound is provided. The method comprises the step of conducting dehydrochlorination coupling of a chloroalkylalkoxysilane compound represented by the formula: wherein Ris a straight or branched divalent Chydrocarbon group, Ris hydrogen atom or an unsubstituted or substituted Cmonovalent hydrocarbon group, Rand Rare respectively a Cmonovalent hydrocarbon group, and n is 0, 1, or 2 and an aminoalcohol represented by the formula: wherein Ris a straight or branched Cdivalent hydrocarbon group which may contain a heteroatom and Ris hydrogen atom or a straight or branched Cmonovalent hydrocarbon group, and promoting intramolecular transesterification to thereby produce a cyclic aminoorganoxysilane compound represented by the formula: wherein Rto Rand n are as defined above.

Growing community of inventors

Joetsu, Japan

Masato Kawakami