公开(公告)号：US11352454B2

公开(公告)日：2022-06-07

申请号：US17426486

申请日：2020-02-07

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company ,  The Regents of the University of California

Inventor： Emre Discekici ,  In-Hwan Lee ,  Alaina McGrath ,  Craig Hawker ,  Jing Ming Ren ,  David Laitar ,  Antony Van Dyk

IPC: C08F20/06

Abstract: Reverse iodine transfer polymerization of an ethylenically unsaturated monomer comprising (meth)acrylic acid, salt thereof, or combination thereof, in the presence of a radical polymerization initiator, an oxidant, an iodide salt, and a solvent, is a useful method for making (meth)acrylic acid polymers. The amounts of components utilized can be 5 to 500 equivalents of the ethylenically unsaturated monomer comprising (meth)acrylic acid, salt thereof, or combination thereof, in the presence of 1 to 3 equivalents of the radical polymerization initiator, 0.2 to 1 equivalent of the oxidant, and 1 equivalent of the iodide salt. (Meth)acrylic acid polymer solutions are made by these methods. The (meth)acrylic polymers are useful as dispersants.

公开(公告)号：US11286322B2

公开(公告)日：2022-03-29

申请号：US17264214

申请日：2019-08-01

Applicant: Dow Global Technologies, LLC ,  Rohm and Haas Company ,  The Regents of the University of California

Inventor： David Lunn ,  Sungbaek Seo ,  Craig Hawker ,  Alaina McGrath ,  Paul Clark ,  Antony Van Dyk ,  Sang-Ho Lee

IPC: C08F20/06 ,  C09D7/65 ,  C09D133/02 ,  C08F220/06 ,  C08F220/18 ,  C09D17/00

Abstract: A branched polycarboxylic acid or salt thereof, wherein the average number of branches is (2) to (100) and the average degree of polymerization of the branches is (2) to (50), is an effective polymeric dispersant. More specifically, the polymeric dispersant is a branched polycarboxylic acid or salt thereof, in which the branched polycarboxylic acid is derived from polymerization of (meth)acrylic acid; the average degree of polymerization is (10) to (150); the average number of branches is (2) to (20); and the average degree of polymerization of the branches is (2) to (30). The branched polycarboxylic acid or salt thereof can be combined with a pigment to form an aqueous dispersion. An aqueous coating composition includes the aqueous dispersion; a polymeric binder; and a rheology modifier.

公开(公告)号：US20150243869A1

公开(公告)日：2015-08-27

申请号：US14626695

申请日：2015-02-19

Applicant: The Regents of the University of California

Inventor： Rachel Segalman ,  Boris Russ ,  Fulvio Brunetti ,  Craig Hawker ,  Michael L. Chabinyc ,  Jeffrey J. Urban

IPC: H01L35/24 ,  C07D471/06

CPC classification number: H01L35/24 ,  C07D471/06

Abstract: A an organic material is shown including a conjugated core, one or more electron donating moieties, and a non-conjugated spacer coupled between the conjugated core and the electron donating moiety. Methods of forming the organic material include solution based processing. One example of an organic material includes a self-doping n-type organic material.

Abstract translation: 显示了一种有机材料，其包括共轭核心，一个或多个给电子部分和偶联在共轭核心和给电子部分之间的非共轭间隔基。 形成有机材料的方法包括基于溶液的处理。 有机材料的一个实例包括自掺杂n型有机材料。

公开(公告)号：US11492538B2

公开(公告)日：2022-11-08

申请号：US17425745

申请日：2020-01-28

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  ROHM AND HAAS COMPANY ,  THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Puspendu Deo ,  Antony K. Van Dyk ,  Paul Clark ,  David Lunn ,  Craig Hawker ,  Maria Simon ,  Sungbaek Seo ,  Alaina McGrath

IPC: E21B37/06 ,  C09K8/528

Abstract: A method for inhibiting scale comprises adding to a fluid that causes scale formation a polycarboxylic acid or a salt thereof which has a star structure and at least 5 arms. A star polymer comprising a core based on 2,2′-[Oxybis(methylene)]bis[2-(hydroxymethyl)-1,3-propanediol] and 6 arms comprising linear polycarboxylic acids of degree of polymerization (DP) of the arm of at least 2 and in some embodiments up to 15 or more is useful in inhibiting scale formation.

公开(公告)号：US11359132B2

公开(公告)日：2022-06-14

申请号：US17425971

申请日：2020-01-28

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  Rohm and Haas Company ,  THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Puspendu Deo ,  Antony K. Van Dyk ,  Paul Clark ,  David Lunn ,  Craig Hawker ,  Maria Simon ,  Sungbaek Seo ,  Alaina McGrath

IPC: C09K8/528 ,  C02F5/10 ,  C08F220/06 ,  C09K8/588 ,  C02F1/68 ,  C02F103/02

Abstract: Disclosed herein is a method for inhibiting scale comprising adding to a fluid that causes scale formation a polycarboxylic acid having a polymer backbone and a plurality of branches from the polymer backbone.

公开(公告)号：US20200056999A1

公开(公告)日：2020-02-20

申请号：US16343907

申请日：2017-10-19

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Javier Read de Alaniz ,  Craig Hawker ,  James Hemmer ,  Yvonne Diaz ,  Abigail S. Knight ,  Zachariah A. Page ,  Tal Margalith

IPC: G01N21/78 ,  G01N31/22

Abstract: Embodiments of the present disclosure describe a colorimetric sensor comprising a substrate including an activated furan and configured to undergo a color change upon detecting an amine. Embodiments of the present disclosure describe a method of using a colorimetric sensor comprising applying an activated furan to a substrate, providing the substrate to a medium, and detecting an amine in the medium via change in color of the substrate. Embodiments of the present disclosure further describe a method of detecting an amine comprising contacting furfural with a cyclic acceptor group to form an activated furan for detecting amines, and contacting the activated furan with an amine to produce a colored donor-acceptor Stenhouse adduct.