公开(公告)号：US20210009816A1

公开(公告)日：2021-01-14

申请号：US16969581

申请日：2019-02-19

Applicant: Arkema Inc.

Inventor： Lily Liu ,  Keith J. Andes ,  Wayne Devonport ,  Matthew F. Boudreaux

IPC: C09D5/02 ,  B01J13/14 ,  B01J13/22 ,  C09D133/12 ,  C09D133/02 ,  C09D7/40

Abstract: Latex emulsions and a process of making the same that incorporates voided latex particles having a core with a hydrophilic component; at least one intermediate shell with, as polymerized units, one or more hydrophilic monoethylenically unsaturated monomer, one or more nonionic monoethylenically unsaturated monomer, or mixtures thereof; an outer shell formed of a polymer having a Tg of at least 60? C; and a surface treatment applied to the outer shell in which a plurality of silicone oligomers with reactive functional groups are cross-linked with one another in order to provide a cross-linked outer surface. The core and the at least one intermediate shell are contacted with a swelling agent in the presence of less than 0.5% monomer based on the overall weight of the voided latex particles. In addition, one or more of the core, the intermediate shell, or the outer shell includes a surfactant.

公开(公告)号：US10590302B2

公开(公告)日：2020-03-17

申请号：US15319433

申请日：2015-06-12

Applicant: Arkema Inc.

Inventor： Wayne Devonport ,  Wu Wenjun ,  Kyu-Jun Kim

IPC: C08G18/62 ,  C09D175/04 ,  C08G18/75 ,  C08G18/67

Abstract: A latex comprising a urethane linkage and having a high solids content and a low viscosity is described herein. Also described is a process for making the urethane linkage-containing latex wherein urethane linkage formation and emulsion polymerization take place in the same processing step.

公开(公告)号：US10351689B2

公开(公告)日：2019-07-16

申请号：US15504375

申请日：2015-08-07

Applicant: Arkema Inc.

Inventor： Lily Liu ,  Wayne Devonport ,  Daniel Edward Stark ,  Matthew F. Boudreaux

IPC: C08J9/16 ,  C08J9/224 ,  C08F285/00 ,  C08F6/00 ,  C08J9/28

Abstract: A process for forming voided latex particles is improved by combining swelling and polymerization of an outer shell into a single step. The process includes contacting multi-stage emulsion polymer particles comprising a core, at least one intermediate shell, with a swelling agent, and polymerizing an outer shell after said contacting with swelling agent wherein the core and the at least one intermediate shell are contacted with swelling agent in the presence of less than 0.5% monomer based on the weight of the multi-stage emulsion polymer particles, and substantially all of the swelling occurs during polymerization of the outer shell.

公开(公告)号：US20220177723A1

公开(公告)日：2022-06-09

申请号：US17442346

申请日：2020-03-24

Applicant: Arkema Inc.

Inventor： Donovan K. Lujan ,  Wayne Devonport

IPC: C09D161/02

Abstract: Disclosed are voided latex particles, useful as opacifying agents for coating compositions containing organic solvents. The particles have a hollow interior, which substantially maintains its integrity after the particles are placed in contact with an organic solvent at 25° C. for 30 days. The particles also have a hydrophilic polymeric interior shell surrounding the hollow interior that is swellable with an aqueous swelling solution. The particles have first and second polymeric intermediate shells, surrounding the interior shell, formed from polymers that are different from each other and different from the interior shell polymer. Finally, the particles have an outer polymeric shell, surrounding the interior shells, which is formed from up to 100% by weight, as polymerized units, of methyl methacrylate. The interior shells and the outer shell each have a Tg greater than 60° C. Also disclosed is a multi-stage emulsion process for making the particles.

公开(公告)号：US10584207B2

公开(公告)日：2020-03-10

申请号：US15737357

申请日：2016-06-16

Applicant: Arkema Inc.

Inventor： Jeremy L. Grove ,  Kyu-Jun Kim ,  Rong Hu ,  Wayne Devonport

IPC: C08L33/00 ,  C08G73/02 ,  C09D179/02 ,  C09J179/02 ,  C08L25/14 ,  C08L79/02 ,  C08L33/04 ,  C08G65/26 ,  C08L33/08 ,  C08L35/02 ,  C09J7/38

Abstract: A latex product composition that includes an anionically-stabilized latex and one or more water soluble, polymers or polymeric adducts that have a backbone with a plurality of amine functional groups and hydroxyl functional groups. The polymers or polymeric adducts may be an addition product formed from at least one multifunctional amine compound reacted with one or more polyfunctional epoxy compounds, one or more monofunctional epoxy compounds, or a combination thereof. The amine compound and the one or more epoxy compounds are reacted to form polymers or polymeric adducts with the molar equivalent ratio of 1.3 to 3.8 amine functional group per epoxy functional group. The addition product may be present in about 0.1 to 15.0 wt. % and the at least one volatile base compound is present in about 1.0 wt. % to 10.0 wt. % based on the weight of the particles present in the anionically-stabilized latex.

公开(公告)号：US20190292346A1

公开(公告)日：2019-09-26

申请号：US16435716

申请日：2019-06-10

Applicant: Arkema Inc.

Inventor： Lily Liu ,  Wayne Devonport ,  Daniel Edward Stark, SR. ,  Matthew F. Boudreaux

IPC: C08J9/224 ,  C08J9/28 ,  C08F285/00 ,  C08J9/16 ,  C08F6/00

Abstract: A process for forming voided latex particles is improved by combining swelling and polymerization of an outer shell into a single step. The process includes contacting multi-stage emulsion polymer particles comprising a core, at least one intermediate shell, with a swelling agent, and polymerizing an outer shell after said contacting with swelling agent wherein the core and the at least one intermediate shell are contacted with swelling agent in the presence of less than 0.5% monomer based on the weight of the multi-stage emulsion polymer particles, and substantially all of the swelling occurs during polymerization of the outer shell.

公开(公告)号：US20170233518A1

公开(公告)日：2017-08-17

申请号：US15504373

申请日：2015-08-07

Applicant: Arkema Inc.

Inventor： Lily Liu ,  Wayne Devonport ,  Daniel Edward Stark ,  Matthew F Boudreaux

IPC: C08F285/00

CPC classification number: C08F285/00 ,  C08F6/006 ,  C08J9/16 ,  C08L51/003

Abstract: A process for forming voided latex particles is improved by combining swelling and polymerization of an outer shell into a single step. The process includes contacting multi-stage emulsion polymer particles comprising a core, at least one intermediate shell, with a swelling agent, and polymerizing an outer shell after said contacting with swelling agent wherein the core and the at least one intermediate shell are contacted with swelling agent in the presence of less than 0.5% monomer based on the weight of the multi-stage emulsion polymer particles, and substantially all of the swelling occurs during polymerization of the outer shell.

公开(公告)号：US10899918B2

公开(公告)日：2021-01-26

申请号：US16307156

申请日：2017-06-19

Applicant: Arkema Inc.

Inventor： Lily Liu ,  Wayne Devonport ,  Daniel E. Stark ,  Matthew F. Boudreaux

IPC: C08L31/04 ,  C08F285/00 ,  C08F263/04 ,  C09D5/03 ,  C09D131/04 ,  C09J9/00 ,  C09J131/04

Abstract: A method of forming latex composite polymer particles produces hydrolysis resistant, composite polymer particles that can be used in aqueous latex compositions. Each of the latex composite polymer particles includes a first phase comprising a vinyl ester oligomer or polymer; optionally, an intermediate phase; and at least one second phase comprising an acrylic oligomer or polymer, a styrene oligomer or polymer, an acrylic-styrene copolymer, or mixtures thereof. The second phase and/or the intermediate phase at least partially encapsulates the first phase. The intermediate and second phases are more hydrophobic than the first phase. Optionally, the first phase, the second phase, and/or the intermediate phase may further comprise a cross-linking agent.

公开(公告)号：US10442882B2

公开(公告)日：2019-10-15

申请号：US15504373

申请日：2015-08-07

Applicant: Arkema Inc.

Inventor： Lily Liu ,  Wayne Devonport ,  Daniel Edward Stark ,  Matthew F. Boudreaux

IPC: C08F285/00 ,  C08J9/16 ,  C08F6/00

Abstract: A process for forming voided latex particles is improved by combining swelling and polymerization of an outer shell into a single step. The process includes contacting multi-stage emulsion polymer particles comprising a core, at least one intermediate shell, with a swelling agent, and polymerizing an outer shell after said contacting with swelling agent wherein the core and the at least one intermediate shell are contacted with swelling agent in the presence of less than 0.5% monomer based on the weight of the multi-stage emulsion polymer particles, and substantially all of the swelling occurs during polymerization of the outer shell.

公开(公告)号：US20170240716A1

公开(公告)日：2017-08-24

申请号：US15504375

申请日：2015-08-07

Applicant: Arkema Inc.

Inventor： Lily Liu ,  Wayne Devonport ,  Daniel Edward Stark ,  Matthew F. Boudreaux

IPC: C08J9/224 ,  C08J9/28 ,  C08J9/16

CPC classification number: C08J9/224 ,  C08F6/006 ,  C08F285/00 ,  C08J9/16 ,  C08J9/28 ,  C08J2201/04 ,  C08J2333/12 ,  C08J2433/12 ,  C08L51/003

Abstract: A process for forming voided latex particles is improved by combining swelling and polymerization of an outer shell into a single step. The process includes contacting multi-stage emulsion polymer particles comprising a core, at least one intermediate shell, with a swelling agent, and polymerizing an outer shell after said contacting with swelling agent wherein the core and the at least one intermediate shell are contacted with swelling agent in the presence of less than 0.5% monomer based on the weight of the multi-stage emulsion polymer particles, and substantially all of the swelling occurs during polymerization of the outer shell.