Osaka Yuki Kagaku Kogyo Kabushiki Kaisha

Shiseido Company, Limited

Sunstar Kabushiki Kaisha

Osaka Organic Chemical Industries Co., Ltd.

Yujiro Uchiyama

Yoshihiro Okuda

Junichi Matsumoto

Tomiyuki Nanba

Tetsuya Kambe

Takao Makishima

Akio Tani

Hiroshi Furumichi

Shigeaki Matsumoto

Yutaka Moriwaki

Kiyoshi Maekawa

Cationic thickener prepared by polymerizing a monomer composition comprising 15 to 85% by weight of at least one of acrylic monomer having an amino group and methacrylic monomer having an amino group, 20 to 80% by weight of vinyl monomer, 1 to 20% by weight of monomer having at least one of acryloyl group and methacryloyl group and 0.1 to 20% by weight of crosslinkable vinyl monomer, and a process for preparing the same. This cationic thickener contains little impurities, and can be easily mixed with a cationic polymer for setting, and forms a flexible film after drying.

Cationic polymer thickener and process for preparing the same

Cosmetic composition comprising cationic thickener prepared in a nonaqueous system in the absence of a surface active agent by polymerizing monomer composition containing 15 to 90% by weight of at least one of acrylic monomer having amino group and methacrylic monomer having amino group, 0 to 80% by weight of vinyl monomer, 1 to 60% by weight of monomer having at least one of acryloyl group and methacryloyl group and 0.1 to 25% by weight of crosslinkable vinyl monomer. This cosmetic composition imparts refreshing feeling and little skin irritation and can be suitably used as hair cream, hair lotion and the like.

Cosmetic composition comprising cationic polymer thickener

A dental adhesive coating base composition comprising a copolymer represented by formula (I) or (II) in an amount of from 5 to 40 wt % based on the total amounts of the composition; and an oral composition comprising at least one of a copolymer represented by formula (I) and a copolymer represented by formula (II) in an amount of from 5 to 40 wt % based on the total amount of the composition, at least one of a phosphoric acid and tartaric acid present in an amount effective to increase the solubility of fluoride in the composition, up to an amount of 6 wt % or less based on the total amount of the composition; a fluorine-containing compound in an amount effective for dental caries prevention; and a volatile nonaqueous solvent are disclosed: ##STR1## wherein R.sup.11 represents an alkyl group having from 1 to 10 carbon atoms; R.sup.12 represents a lower alkyl group having from 1 to 2 carbon atoms, provided that three R.sup.12 groups must be the same; R.sup.13, R.sup.14, R.sup.15, R.sup.16 and R.sup.17, which may be the same or different, each represents a hydrogen atom or a methyl group; W.sub.1 is from 5 to 30 wt %; X.sub.1 is from 20 to 60 wt %; Y.sub.1 is from 20 to 60 wt %; and Z.sub.1 is from 0.2 to 20 wt %; ##STR2## wherein R.sup.21 and R.sup.22, which may be the same or different, each represent an alkyl group having from 1 to 10 carbon atoms; R.sup.23, R.sup.24, and R.sup.25, which may be the same or different, each represent a hydrogen atom or a methyl group, provided that at least one of the groups R.sup.21 and R.sup.22, and R.sup.24 and R.sup.25, respectively, are different from each other; X.sub.2 is from 5 to 80 wt %; Y.sub.2 is from 10 to 95 wt %; and Z.sub.2 is from 0 to 85 wt %.

Dental adhesive coating base composition and oral composition

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Osaka, Japan

Yujiro Uchiyama