公开(公告)号：US20230183469A1

公开(公告)日：2023-06-15

申请号：US17924263

申请日：2021-06-17

Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

Inventor： Pu Luo ,  Steven C. Brown ,  Matthew Carter ,  Liang Chen ,  Ralph C. Even ,  Junsi Gu ,  Miroslav Janco ,  Robert S. Moglia ,  Johnpeter N. Ngunjiri ,  Tanvi S. Ratani

IPC: C08L51/06 ,  C08F6/22 ,  C08F255/02 ,  C08L69/00

CPC classification number: C08L51/06 ,  C08F6/22 ,  C08F255/02 ,  C08L69/00 ,  C08L2207/53 ,  C08L2201/50

Abstract: A composite polymer composition comprising: the emulsion polymerization product of: (i) an aqueous polyolefin dispersion comprising the melt kneading product of one or more polyolefins, from 0.5 to 25 wt % of one or more dispersion stabilizing agents and water, and (ii) one or more (meth)acrylic monomers; wherein the one or more polyolefins have a Tg equal to or less than 50° C.; wherein the melt kneading product (i) comprises polymer particles having a volume average particle size between 50 nm and 2000 nm dispersed in the water; wherein the one or more dispersion stabilizing agents comprises a fatty acid or fatty acid salt stabilizing agent; and wherein the one or more (meth)acrylic monomers graft onto the polymer particles form composite polymer particles is provide. Also provided is a method of making the composition and impact modifiers comprising the composition.

公开(公告)号：US20230399502A1

公开(公告)日：2023-12-14

申请号：US18032199

申请日：2021-11-15

Applicant: Rohm and Haas Company

Inventor： Pu Luo ,  Morris Wills ,  Steven C. Brown

IPC: C08L51/04 ,  C08F220/18 ,  C08L63/00 ,  C08L33/12

CPC classification number: C08L51/04 ,  C08F220/1804 ,  C08L63/00 ,  C08L33/12 ,  C08L2207/53 ,  C08L2201/56

Abstract: A composition for dispersing multilayer polymers has an oligomer prepared from at least one alkyl (meth)acrylate monomer in the presence of a chain transfer agent. The oligomer has a number average molecular weight of less than 2,500 g/mol. A composition containing the oligomer and a multilayer polymer, such as an acrylic core-shell polymer or methacrylate butadiene styrene core-shell polymer, and a resin composition are also disclosed.

公开(公告)号：US20240076486A1

公开(公告)日：2024-03-07

申请号：US17767598

申请日：2020-10-14

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Carlos Alfonso Cruz ,  Liang Chen ,  Steven C. Brown ,  Pu Luo

IPC: C08L51/06 ,  C08F255/08 ,  C08L25/12

CPC classification number: C08L51/06 ,  C08F255/08 ,  C08L25/12

Abstract: Disclosed is an impact modified resin comprises a matrix polymer resin and an impact modifier. The impact modifier comprises particles of a crosslinked polyolefin elastomer having one or more (meth)acrylic monomers grafted to the crosslinked polyolefin elastomer particles. The matrix polymer resin is a styrenic polymer.

公开(公告)号：US20230383026A1

公开(公告)日：2023-11-30

申请号：US18031273

申请日：2021-11-15

Applicant: Rohm and Haas Company

Inventor： Pu Luo ,  William Rohrbach ,  Morris Wills ,  Steven C. Brown

IPC: C08F20/18 ,  C08L55/00 ,  C08J3/07

CPC classification number: C08F20/18 ,  C08L55/00 ,  C08J3/07 ,  C08L2207/53 ,  C08J2355/00 ,  C08J2333/12 ,  C08J2363/00

Abstract: A composition for dispersing multilayer polymers has an oligomer prepared from at least one alkyl (meth)acrylate monomer in the presence of a chain transfer agent. The oligomer has a number average molecular weight of less than 10,000 g/mol and a glass transition temperature, Tg, as measured by DSC, less than a coagulation temperature of a composition comprising the oligomer and a multilayer polymer, wherein the coagulation temperature is based on an average particle diameter of 200 microns. A composition containing the oligomer and a multilayer polymer, such as an acrylic core-shell polymer or methacrylate butadiene styrene core-shell polymer, and a resin composition are also disclosed.