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.

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

IPC: A61K8/06 ,  A61K8/81 ,  A61K8/92

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

IPC: A61K8/898 ,  A61K8/81 ,  A61K8/19 ,  A61Q1/12 ,  A61K8/891

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).

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

IPC: C08L83/08 ,  A61K8/02 ,  A61Q1/12 ,  C09C3/12

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.

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.