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公开(公告)号：US20200337951A1
公开(公告)日：2020-10-29
申请号：US16920789
申请日：2020-07-06
Applicant: Rohm and Haas Company
Inventor： Junsi Gu , Jennifer Koenig , Xiang Qian Liu , Xiaodong Lu , Ying O'Connor , Curtis Schwartz , Xindi Yu , Fanwen Zeng
Abstract: A method for lightening skin tone is provided, comprising topically administering a personal care composition comprising: (A) voided latex particles comprising (i) a core polymer comprising (a) 20 to 60 weight % of monoethylenically unsaturated monomers containing a carboxylic acid group, and (b) 40 to 80 weight % of non-ionic ethylenically unsaturated monomers; and (ii) a shell polymer comprising (a) 55 to 85 weight % of non-ionic ethylenically unsaturated monomers, and (b) 15 to 45 weight % of polyethylenically unsaturated monomers; (B) 0.1 to 10 weight % of pigment grade inorganic metal oxide particles having a particle size of 250 nm to 1,000 nm; (C) a dermatologically acceptable carrier; and (D) an emollient, wherein the voided latex particles are present in at 0.5 to 10 weight %, based on weight of the composition, contain a void and have a particle size of 400 nm to 1500 nm.
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Patent Agency Ranking
公开(公告)号：US20240417930A1
公开(公告)日：2024-12-19
申请号：US18713463
申请日：2022-12-06
Applicant: Rohm and Haas Company
Inventor： Brian R. Einsla , Andrew Hejl , Ethan C. Glor , Junsi Gu
Abstract: The present invention relates to a coated paper article with an intermediate basecoat layer comprising high void fraction porous hollow sphere polymer particles (HSPs). HSPs with very small pore area density and high void fraction result in increased optical density at a given print energy in thermal printing applications.
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公开(公告)号：US20230404875A1
公开(公告)日：2023-12-21
申请号：US18251037
申请日：2021-12-02
Applicant: Dow Global Technologies LLC , Rohm and Haas Company
Inventor： Luqing Qi , Ying O'Connor , Yuanqiao Rao , David L. Malotky , Eric Wasserman , Fanwen Zeng , Junsi Gu , Stephanie A. Bloxom
Abstract: An aqueous personal care rinse off composition is provided, comprising: a dermatologically acceptable aqueous vehicle; a dermatologically acceptable cleaning surfactant; and a plurality of composite opacifier particles, wherein the composite opacifier particles comprise metal oxide particles that are partially or completely encapsulated by a wax; wherein the metal oxide particles are selected from the group consisting of zinc oxide, titanium oxide and mixtures thereof; wherein the metal oxide particles have a z average particle size of >100 nm as measured by dynamic light scattering; wherein the wax has a melting point temperature of 50 to 110° C.; and wherein the composite opacifier particles have a z average particle size of >100 nm to 2,000 nm as measured by dynamic light scattering.
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公开(公告)号：US11058612B2
公开(公告)日：2021-07-13
申请号：US16754432
申请日：2018-10-03
Applicant: Rohm and Haas Company
Inventor： Xiaodong Lu , Xiang Qian Liu , Fanwen Zeng , Junsi Gu , Wen-Shiue Young
Abstract: A multistage colored polymer particle is provided, having a core comprising polymerized units of a monoethylenically unsaturated carboxylic acid core monomer and a non-ionic ethylenically unsaturated core monomer; an inner shell comprising polymerized units of a non-ionic ethylenically unsaturated inner shell monomer; a monoethylenically unsaturated carboxylic acid inner shell monomer; optionally, an aliphatic inner shell monomer; and, optionally, a first polymerizable dye monomer; an outer shell comprising polymerized units of a non-ionic ethylenically unsaturated outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer; optionally, a second polymerizable dye monomer; and, optionally, an aliphatic outer shell monomer; wherein the core, when dry, contains at least one void; and wherein the multistage colored polymer particle comprises polymerized units of polymerizable dye monomer. Skin care formulations comprising multistage colored polymer particles and methods of using same are also provided.
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公开(公告)号：US20200315928A1
公开(公告)日：2020-10-08
申请号：US16754432
申请日：2018-10-03
Applicant: Rohm and Haas Company
Inventor： Xiaodong Lu , Xiang Qian Liu , Fanwen Zeng , Junsi Gu , Wen-Shiue Young
Abstract: A multistage colored polymer particle is provided, having a core comprising polymerized units of a monoethylenically unsaturated carboxylic acid core monomer and a non-ionic ethylenically unsaturated core monomer; an inner shell comprising polymerized units of a non-ionic ethylenically unsaturated inner shell monomer; a monoethylenically unsaturated carboxylic acid inner shell monomer; optionally, an aliphatic inner shell monomer; and, optionally, a first polymerizable dye monomer; an outer shell comprising polymerized units of a non-ionic ethylenically unsaturated outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer; optionally, a second polymerizable dye monomer; and, optionally, an aliphatic outer shell monomer; wherein the core, when dry, contains at least one void; and wherein the multistage colored polymer particle comprises polymerized units of polymerizable dye monomer. Skin care formulations comprising multistage colored polymer particles and methods of using same are also provided.
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公开(公告)号：US20180311117A1
公开(公告)日：2018-11-01
申请号：US15770503
申请日：2016-11-08
Applicant: Rohm and Haas Company
Inventor： Fanwen Zeng , Pu Luo , Xiaodong Lu , Junsi Gu
CPC classification number: A61K8/0241 , A61K8/27 , A61K8/29 , A61K8/8152 , A61K8/8158 , A61K2800/412 , A61K2800/413 , A61K2800/624 , A61Q17/04 , C01P2004/84 , C09C1/3676
Abstract: An aqueous personal care composition comprising 0.5 to 10 wt % polymer encapsulated particles of titanium dioxide or zinc oxide; said polymer encapsulated particles comprising: (i) particles of titanium dioxide or zinc oxide having an average particle diameter from 10 to 200 nm; (ii) 0.25 to 10 wt % water-soluble sulfur acid-functional first polymer, based on weight of said particles of titanium dioxide or zinc oxide; and (iii) from 10% to 200%, by weight second polymer, based on weight of said particles of titanium dioxide or zinc oxide, wherein the second polymer at least partially encapsulates said particle of titanium dioxide or zinc oxide.
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