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公开(公告)号:US11439582B2
公开(公告)日:2022-09-13
申请号:US15784337
申请日:2017-10-16
Applicant: SHISEIDO COMPANY, LTD.
Inventor: Atsushi Sogabe , Ayano Matsuo , Shin-Ichi Yusa
IPC: A61K8/81 , A61Q19/00 , C08F120/06 , C08F8/44 , C08F120/58
Abstract: Aqueous compositions can be thickened without increasing stringiness, by using polymers of polyacrylic acid, poly(2-acryamide-2-methylpropanesulfonate), or salts thereof, having a weight average molecular weights of 500,000 to 8,000,000 as thickeners. The polymers contain no more than 10 mass % of polymers having a molecular weight of 10,000,00 or more, and/or contain no more than 10 mass % of polymers having more than three times the weight average molecular weight. Aqueous solutions of these polymers exhibit a low degree of stringiness, and are particularly useful as thickeners for cosmetics.
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公开(公告)号:US12090218B2
公开(公告)日:2024-09-17
申请号:US17618664
申请日:2020-02-28
Applicant: Shiseido Company, Ltd.
Inventor: Makoto Uyama , Takumi Watanabe , Ayano Matsuo
CPC classification number: A61K8/064 , A61K8/8147 , A61K8/92 , A61K2800/805
Abstract: To provide a water-in-oil emulsified composition which highly encapsulates a water content, has high viscosity, and is excellent in emulsification stability.
The water-in-oil emulsified composition of the present disclosure comprises a dispersion medium comprising an oil content, and an oil-soluble copolymer having a monomer unit obtained from a specific hydrophilic monomer, and a monomer unit obtained from a specific hydrophobic monomer; and water droplets dispersed in the dispersion medium, wherein the oil content contains 60% by mass or more of polar oil with an IOB of 0.10 or more, and wherein the water droplets contain water and a surfactant, and the content of the water is 30% by mass or more based on the total amount of the composition.-
公开(公告)号:US11318084B2
公开(公告)日:2022-05-03
申请号:US16305474
申请日:2017-05-29
Applicant: SHISEIDO COMPANY, LTD.
Inventor: Tomo Osawa , Ayano Matsuo , Yuji Sonoyama , Tomoko Ikeda , Shun Kubota , Mao Hitomi , Takuya Hiruma , Tetsuya Kanemaru
Abstract: Provided is an elastomer that improves the skin feel of an inorganic powder. The elastomer according to the present invention is an elastomer comprising: (A) an amino group-containing silicone polymer; and (B) a carboxyl group-containing silicone polymer or a carboxyl group-containing acrylamide polymer, wherein a molar ratio Y/X between amino groups and carboxyl groups is within a range of 0.1 to 1.2, wherein Y denotes the molar amount of carboxyl groups contained in the component (B), and X denotes the molar amount of amino groups contained in the component (A).
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公开(公告)号:US20220145077A1
公开(公告)日:2022-05-12
申请号:US17569913
申请日:2022-01-06
Applicant: SHISEIDO COMPANY, LTD.
Inventor: Tomo Osawa , Ayano Matsuo , Yuji Sonoyama , Tomoko Ikeda , Shun Kubota , Mao Hitomi , Takuya Hiruma , Tetsuya Kanemaru
Abstract: Provided is an elastomer that improves the skin feel of an inorganic powder. The elastomer according to the present invention is an elastomeric mixture comprising an amino group-containing silicone polymer and a carboxyl group-containing silicone polymer or a carboxyl group-containing acrylamide polymer. The molar ratio of amino groups to carboxyl groups in the mixture is within the range of 0.1 to 1.2.
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公开(公告)号:US20180036221A1
公开(公告)日:2018-02-08
申请号:US15784337
申请日:2017-10-16
Applicant: SHISEIDO COMPANY, LTD.
Inventor: Atsushi Sogabe , Ayano Matsuo , Shin-Ichi Yusa
IPC: A61K8/81 , A61Q19/00 , C08F8/44 , C08F120/58 , C08F120/06
CPC classification number: A61K8/8147 , A61K8/8152 , A61K8/8158 , A61K2800/10 , A61K2800/48 , A61Q19/00 , C08F8/44 , C08F120/06 , C08F120/58
Abstract: The invention provides methods of thickening aqueous compositions without increasing stringiness. The method involves using, as thickeners, polymers of polyacrylic acid, poly(2-acryamide-2-methylpropanesulfonate), or salts thereof, having a weight average molecular weight of 500,000-8,000,000. The polymers contain no more than 10 mass % of polymers having a molecular weight of 10,000,00 or more, and/or contain no more than 10 mass % of polymers having more than three times the weight average molecular weight. Aqueous solutions of these polymers have a low degree of stringiness, and are particularly useful as thickeners for cosmetics.
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