公开(公告)号：WO2021211263A1

公开(公告)日：2021-10-21

申请号：PCT/US2021/023444

申请日：2021-03-22

Applicant: ROHM AND HAAS COMPANY

Inventor： BOHLING, James C. ,  ERYAZICI, Ibrahim ,  KOZAK, Christopher ,  MAJUMDAR, Partha S. ,  NGUNJIRI, Johnpeter N.

IPC: C08L51/00 ,  C08F220/18 ,  C08F220/40 ,  C08F265/06 ,  C08F220/14 ,  C08K3/22 ,  C09D133/00 ,  C09D5/00 ,  C09D5/02 ,  C09D5/16 ,  C09D7/42 ,  C08F285/00 ,  C08F2/26 ,  C08F2/38 ,  C09D133/14 ,  C09D7/40

Abstract: The present invention relates to an aqueous dispersion of polymeric microspheres with a high surface Young's modulus and a relatively low core Young's modulus. The dispersion of the present invention is useful in paint formulations for providing improved hydrophobic stain resistance, for example, resistance to lipstick.

公开(公告)号：WO2021257768A1

公开(公告)日：2021-12-23

申请号：PCT/US2021/037729

申请日：2021-06-17

Applicant: ROHM AND HAAS COMPANY ,  DOW GLOBAL TECHNOLOGIES LLC

Inventor： LUO, Pu ,  BROWN, Steven C. ,  CARTER, Matthew ,  CHEN, Liang ,  EVEN, Ralph C. ,  GU, Junsi ,  JANCO, Miroslav ,  MOGLIA, Robert S. ,  NGUNJIRI, Johnpeter N. ,  RATANI, Tanvi S.

IPC: B29C48/40 ,  C08F8/22 ,  C08F255/02 ,  C08L51/06 ,  C08L69/00 ,  C08F6/22 ,  C08L2207/53

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.