Mitsubishi Chemical Corporation

Akira Ishikubo

Shoya Yoda

Takeshi Kato

Yuji Soejima

Mika Matsumoto

Kiyomi Takei

Yu Echigo

Jiro Sugiyama

A resin composition for insulating coating material, comprises: a polyimide resin and/or a precursor thereof; and a polymer having a heterocyclic ring at a side chain, wherein the content of the polymer having a heterocyclic ring at a side chain is 0.1 to 7 parts by weight relative to 100 parts by weight of the polyimide resin and/or the precursor thereof. By adding a prescribed amount of the polymer having a heterocyclic ring at a side chain, there can be obtained a resin composition for insulating coating material still maintaining heat resistance and together having excellent bending resistance.

Resin composition

The present invention relates to a core-shell type polymer particle including a shell part composed of an amphoteric polymer (A) and a core part composed of a hydrophobic polymer (B).

Core-shell type polymer particle, aqueous polymer emulsion, and hair cosmetic composition

The present invention relates to a cosmetic composition comprising: a copolymer having a constituent unit corresponding to (A) a vinyl monomer having a carboxyl group in a structure and a constituent unit corresponding to (B) a vinyl monomer represented by the following formula (1); a cationic surfactant; a higher alcohol; and a silicone oil:CH&#x2550;C(R)&#x2014;CO&#x2014;X-(Q-O)&#x2014;R&#x2003;&#x2003;(1)wherein Ris a hydrogen atom or a methyl group; Ris a hydrogen atom or an alkyl group having a carbon number of 1 to 5, each of which may have a substituent; Q is an alkylene group having a carbon number of 2 to 4, which may have a substituent; r represents an integer of 2 to 15; and X represents an oxygen atom or NH, and the number of atoms bonded linearly to each other in the structure of -(Q-O)&#x2014;Ris 70 or less.

Cosmetic composition, hair cosmetic and hair treatment cosmetic

To provide a cosmetic composition and a hair wash which are excellent in metal pyrithione salt persistence after washing with a washing liquid containing a surfactant, etc. A cosmetic composition and a hair wash, which comprise a copolymer and a metal pyrithione salt, wherein the copolymer contains constituting units corresponding to a cationic vinyl monomer of a specific structure and constituting units corresponding to a nonionic vinyl monomer of a specific structure.

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Mie, Japan

Akira Ishikubo