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公开(公告)号：US10086494B2
公开(公告)日：2018-10-02
申请号：US15264056
申请日：2016-09-13
发明人： Jonathan G. Weis , George C. Jacob , Bhawesh Kumar , Sarah E. Mastroianni , Wenjun Xu , Nan-Rong Chiou , Mohammad T. Islam
IPC分类号： B24B37/24 , B24D11/00 , B24B37/22 , B24B53/017
摘要： A chemical mechanical polishing pad for polishing a semiconductor substrate is provided containing a polishing layer that comprises a polyurethane reaction product of a reaction mixture comprising a curative and a polyisocyanate prepolymer having an unreacted isocyanate (NCO) concentration of from 8.3 to 9.8 wt. % and formed from a polyol blend of polypropylene glycol (PPG) and polytetramethylene ether glycol (PTMEG) and containing a hydrophilic portion of polyethylene glycol or ethylene oxide repeat units, a toluene diisocyanate, and one or more isocyanate extenders, wherein the polyurethane reaction product exhibits a wet Shore D hardness of from 10 to 20% less than the Shore D hardness of the dry polyurethane reaction product.
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2.发明申请公开(公告)号：US20180071888A1
公开(公告)日：2018-03-15
申请号：US15264056
申请日：2016-09-13
发明人： Jonathan G. Weis , George C. Jacob , Bhawesh Kumar , Sarah E. Mastroianni , Wenjun Xu , Nan-Rong Chiou , Mohammad T. Islam
IPC分类号： B24B37/24 , B24B53/017
CPC分类号： B24B37/245 , B24B37/22 , B24B37/24 , B24B53/017 , B24D11/00
摘要： A chemical mechanical polishing pad for polishing a semiconductor substrate is provided containing a polishing layer that comprises a polyurethane reaction product of a reaction mixture comprising a curative and a polyisocyanate prepolymer having an unreacted isocyanate (NCO) concentration of from 8.3 to 9.8 wt. % and formed from a polyol blend of polypropylene glycol (PPG) and polytetramethylene ether glycol (PTMEG) and containing a hydrophilic portion of polyethylene glycol or ethylene oxide repeat units, a toluene diisocyanate, and one or more isocyanate extenders, wherein the polyurethane reaction product exhibits a wet Shore D hardness of from 10 to 20% less than the Shore D hardness of the dry polyurethane reaction product.
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公开(公告)号：US11185477B2
公开(公告)日：2021-11-30
申请号：US16634635
申请日：2018-06-28
发明人： Wenjun Xu , Fanwen Zeng , Benjamin Yezer , Liang Chen , Dale C. Schmidt , Inna Shulman
摘要： An SPF booster is provided, comprising: a multistage polymeric particle 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 and an aliphatic inner shell monomer; an outer shell comprising polymerized units of a non-ionic ethylenically unsaturated outer shell monomer; an aliphatic outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer and an ethylenically unsaturated surfactant outer shell monomer; wherein the core, when dry, contains a void; and wherein the multistage polymeric particle has an average particle size, when dry, of 50 to 1,000 nm.
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公开(公告)号：US20230310298A1
公开(公告)日：2023-10-05
申请号：US18023155
申请日：2021-09-21
发明人： Wenjun Xu , Marc-Andre Courtemanche , Isabelle Van Reeth , Helene Dihang , Tian Lan , Myoungbae Lee , Matthew Mclaughlin
CPC分类号： A61K8/585 , A61K8/731 , A61K8/29 , A61K8/31 , A61Q17/00 , A61K2800/43 , A61K2800/48
摘要： An oil/polymer blend is provided comprising: an oil, wherein the oil is selected from the group consisting of silicone fluids, fluids containing 2 to 30 carbon atoms per molecule, and mixtures thereof; and a thickening polymer powder, thickening polymer, wherein the thickening polymer is a silylated cellulose polymer, comprising a cellulose polymer functionalized with —Si(R1)3 groups; wherein each R1 is independently selected from the group consisting of a hydrogen, a C1-8 alkyl group, a C1-8 haloalkyl group, an aryl group, a C1-8 alkylaryl group and a C1-8 haloalkylaryl group; and wherein the cellulose polymer has a weight average molecular weight of 50,000 to 1,500,000 Daltons.
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公开(公告)号：US20200268619A1
公开(公告)日：2020-08-27
申请号：US16634320
申请日：2018-06-28
发明人： Wenjun Xu , Fanwen Zeng , Benjamin Yezer , Liang Chen , Dale C. Schmidt , Inna Shulman
摘要： A suncare formulation comprising: a dermatologically acceptable organic carrier; a UV radiation absorbing agent; and an SPF booster; wherein the SPF booster comprises a multistage polymeric particle 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 and an aliphatic inner shell monomer; an outer shell comprising polymerized units of a non-ionic ethylenically unsaturated outer shell monomer; an aliphatic outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer and an ethylenically unsaturated surfactant outer shell monomer; wherein the core, when dry, contains a void; wherein the multistage polymeric particle has an average particle size, when dry, of 50 to 1,000 nm.
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公开(公告)号：US20230301888A1
公开(公告)日：2023-09-28
申请号：US18022896
申请日：2021-09-21
发明人： Marc-Andre Courtemanche , Wenjun Xu , Isabelle Van Reeth , Helene Dihang , Tian Lan , Myoungbae Lee , Matthew Mclaughlin
CPC分类号： A61K8/37 , A61K8/731 , A61Q17/04 , A61K2800/48 , A61K2800/592
摘要： A polymer/hydrophobic ester oil blend is provided comprising (a) a cosmetically acceptable hydrophobic ester oil; and (b) a thickening polymer powder, thickening polymer, wherein the thickening polymer is a silylated cellulose polymer, comprising a cellulose polymer functionalized with —Si(R1)3 groups; wherein each R1 is independently selected from the group consisting of a hydrogen, a C1-8 alkyl group, a C1-8 haloalkyl group, an aryl group, a C1-8 alkylaryl group and a C1-8 haloalkylaryl group; and wherein the cellulose polymer has a weight average molecular weight of 50,000 to 1,500,000 Daltons. Also provided are suncare formulations containing same and methods of using same.
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公开(公告)号：US20230034183A1
公开(公告)日：2023-02-02
申请号：US17784134
申请日：2021-01-19
发明人： Wenjun Xu , Isabelle Van Reeth , Yuanqiao Rao
摘要： An aqueous suncare formulation is provided, including: a cosmetically acceptable aqueous carrier; a suncare active; and a sulfated crystalline cellulose SPF booster; wherein the sulfated crystalline cellulose SPF booster both boosts the SPF of the aqueous suncare formulation and thickens the aqueous suncare formulation.
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公开(公告)号：US11058613B2
公开(公告)日：2021-07-13
申请号：US16634320
申请日：2018-06-28
发明人： Wenjun Xu , Fanwen Zeng , Benjamin Yezer , Liang Chen , Dale C. Schmidt , Inna Shulman
摘要： A suncare formulation comprising: a dermatologically acceptable organic carrier; a UV radiation absorbing agent; and an SPF booster; wherein the SPF booster comprises a multistage polymeric particle 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 and an aliphatic inner shell monomer; an outer shell comprising polymerized units of a non-ionic ethylenically unsaturated outer shell monomer; an aliphatic outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer and an ethylenically unsaturated surfactant outer shell monomer; wherein the core, when dry, contains a void; wherein the multistage polymeric particle has an average particle size, when dry, of 50 to 1,000 nm.
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