Shin-etsu Chemical Co., Ltd.

Shotaro Aoki

Ayumu Kiyomori

Masato Kawakami

Tohru Kubota

Yoichi Tonomura

Yasufumi Kubota

A resin-coated metal powder according to the present invention is obtained by covering at least a part of the surface of a metal powder with a hydrolyzable resin that has an average composition of general formula (1) and a number average molecular weight of from 500 to 100,000; and this resin-coated metal powder exhibits sufficient dispersibility in an aqueous solution, while being stable for a relatively long period of time even in the coexistence of water in an aqueous coating material. (In the formula, Rrepresents a linear or branched monovalent hydrocarbon group having from 1 to 10 carbon atoms, said group optionally having a specific substituent such as a hydroxyalkyl group; each of R, Rand Rindependently represents a linear or branched monovalent hydrocarbon group having from 1 to 10 carbon atoms; each of Rand Rindependently represents a hydrogen atom or a linear or branched monovalent hydrocarbon group having from 1 to 10 carbon atoms; and a and b represent numbers that satisfy 0≤a<1, 0<b≤1 and (a+b)=1.)

Resin-coated metal powder, method for producing same and aqueous coating composition using same

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

Provided is a carbonate-containing silane compound having a characteristic structure that at least two silicon atoms are linked by a carbon chain. The silane compound is chemically stable. When used as an additive to a nonaqueous electrolyte solution, the silane compound does not jeopardize the safety of lithium ion secondary batteries.

Carbonate-containing silane compound and making method

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

The invention provides an organosilane compound having a more bulky substituent group than the existing organosilane compounds. The compound is represented by formula (1) wherein Ris a C-Ctertiary hydrocarbon group, Ris a C-Calkyl group, and LG is halogen or trifluoromethanesulfonyloxy. 

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Joetsu, Japan

Shotaro Aoki