公开(公告)号：US10160880B2

公开(公告)日：2018-12-25

申请号：US14122380

申请日：2012-05-29

申请人： Kathleen A. Auld ,  Ward T. Brown ,  Kevin J. Henderson ,  Anurima Singh ,  Antony K. Van Dyk ,  Lidaris San Miguel Rivera

发明人： Kathleen A. Auld ,  Ward T. Brown ,  Kevin J. Henderson ,  Anurima Singh ,  Antony K. Van Dyk ,  Lidaris San Miguel Rivera

IPC分类号： C09D141/00 ,  C09D7/43 ,  C09D133/08 ,  C09D133/10 ,  C09D153/00 ,  C09D171/02 ,  C08L39/00 ,  C09D5/02 ,  C08G65/332 ,  C09D133/14 ,  C09D7/62

摘要： The present invention relates to a composition comprising an amphoteric polymer having pendant acid groups, or salts thereof, and pendant mono- or dialkylamino ethylene oxide groups or alkylammonium ethylene oxide groups characterized by either of the following formulas: where R1-R3 and X− are as defined herein. The composition of the present invention improves hiding efficiency for coating compositions formulated using associative rheology modifiers, binders, and titanium dioxide.

公开(公告)号：US10273314B2

公开(公告)日：2019-04-30

申请号：US13811820

申请日：2011-07-22

申请人： Antony K. Van Dyk ,  Susan J. Fitzwater ,  Sven Fleischmann ,  Virgil Percec

发明人： Antony K. Van Dyk ,  Susan J. Fitzwater ,  Sven Fleischmann ,  Virgil Percec

IPC分类号： C08F2/06 ,  C08F4/10 ,  C08F20/14 ,  C08F120/14 ,  C08F4/40 ,  C08F220/14

摘要： SET-LRP polymerization of acrylic monomers under acidic conditions is described. The source of the acidity may be the solvent (e.g., an acetic acid-containing solvent) or in the monomer content (e.g., acrylic acid or methacrylic acid, optionally in combination with other monomers such as methyl methacrylate).

公开(公告)号：US20130245216A1

公开(公告)日：2013-09-19

申请号：US13811820

申请日：2011-07-22

申请人： Antony K. Van Dyk ,  Susan J. Fitzwater ,  Sven Fleischmann ,  Virgil Percec

发明人： Antony K. Van Dyk ,  Susan J. Fitzwater ,  Sven Fleischmann ,  Virgil Percec

IPC分类号： C08F2/06

CPC分类号： C08F2/06 ,  C08F4/10 ,  C08F4/40 ,  C08F20/14 ,  C08F120/14 ,  C08F220/14 ,  C08F2438/00 ,  C08F2438/01 ,  C08F2438/02 ,  C08F2438/03 ,  C08F220/06

摘要： SET-LRP polymerization of acrylic monomers under acidic conditions is described. The source of the acidity may be the solvent (e.g., an acetic acid-containing solvent) or in the monomer content (e.g., acrylic acid or methacrylic acid, optionally in combination with other monomers such as methyl methacrylate).

摘要翻译： 描述了在酸性条件下丙烯酸单体的SET-LRP聚合。 酸的来源可以是溶剂（例如，含乙酸的溶剂）或单体含量（例如，丙烯酸或甲基丙烯酸，任选地与其它单体如甲基丙烯酸甲酯组合）。

公开(公告)号：US20230033318A1

公开(公告)日：2023-02-02

申请号：US17383483

申请日：2021-07-23

申请人： Kaoru Aou ,  Thomas H. Kalantar ,  Qinghao Meng ,  John Klier ,  Antony K. Van Dyk ,  Gary W. Dombrowski ,  Joseph Jacobs

发明人： Kaoru Aou ,  Thomas H. Kalantar ,  Qinghao Meng ,  John Klier ,  Antony K. Van Dyk ,  Gary W. Dombrowski ,  Joseph Jacobs

IPC分类号： C08J9/00 ,  C08L75/08 ,  C08J9/12

摘要： A reaction system for forming a viscoelastic polyurethane foam includes an isocyanate component and an isocyanate-reactive component that includes at least a polyol component, an additive component, and a preformed aqueous polymer dispersant. The mixture includes 50.0 wt % to 99.8 wt % of the polyol component, 0.1 wt % to 49.9 wt % of the additive component, and 0.1 wt % to 6.0 wt % of the preformed aqueous polymer dispersant. The aqueous polymer dispersant has a pH from 6.0 to 12.0 and includes from 5 wt % to 60 wt % of a polymeric component and from 40 wt % to 95 wt % of a fluid medium. The polymeric component includes at least one base polymer derived from 20 wt % to 100 wt % of at least one hydrophilic acid monomer having at least one carbonyl group, phosphate group, phosphonate group, or sulfonyl group, and optionally derived from at least one hydrophobic terminally unsaturated hydrocarbon monomer.