公开(公告)号：US20240309126A1

公开(公告)日：2024-09-19

申请号：US18547895

申请日：2022-03-02

Applicant: Rohm and Haas Company

Inventor： William Rohrbach ,  Pu Luo ,  Mark A. Kesselmayer

IPC: C08F10/08 ,  C08F2/00 ,  C08F2/26 ,  C08F6/22 ,  C08J3/12 ,  C08J3/20 ,  C08L69/00

CPC classification number: C08F10/08 ,  C08F2/001 ,  C08F2/26 ,  C08F6/22 ,  C08J3/122 ,  C08F2400/02 ,  C08J3/203 ,  C08J2369/00 ,  C08J2423/18 ,  C08L69/00 ,  C08L2201/02

Abstract: Provided are a process for making a polymer composition comprising (i) providing a multistage polymer latex by emulsion polymerization in the presence of at least one organo-phosphorus soap, wherein providing the multistage polymer comprises (a) providing a first stage polymer, wherein the first stage polymer comprises polymerized units derived from at least one organo-phosphorus monomers, and (b) providing a final stage polymer, and (ii) isolating the multistage polymer by spray drying or coagulation with one or more divalent cations. Also provided is a process for making a matrix resin composition comprising mixing multistage polymer compositions and a matrix resin.

公开(公告)号：US20250011586A1

公开(公告)日：2025-01-09

申请号：US18712529

申请日：2022-12-07

Applicant: Rohm and Haas Company

Inventor： Pu Luo ,  Morris Wills ,  William Rohrbach ,  Mark A. Kesselmayer

IPC: C08L9/00

Abstract: Provided are multistage polymer compositions comprising (a) an initial stage polymer, and (b) a latter stage polymer, wherein latter stage polymer comprises polymerized units derived from at least one alkyl (meth)acrylate monomer, a styrene monomer, and at least one organo-phosphorus monomer. The at least one organo-phosphorus monomer is in the acid form as a salt of the phosphorus acid group. The weight ratio of the at least one alkyl (meth)acrylate monomer to styrene monomer in the latter stage polymer ranges from 50:50 to 90:10. Also provided are matrix resin compositions comprising such polymer compositions and a matrix resin, and a method for making the multistage polymer compositions.

公开(公告)号：US20240124637A1

公开(公告)日：2024-04-18

申请号：US18263720

申请日：2022-03-01

Applicant: Rohm and Haas Company

Inventor： William Rohrbach ,  Pu Luo ,  Mark A. Kesselmayer

IPC: C08F279/02 ,  C08L69/00

CPC classification number: C08F279/02 ,  C08L69/00

Abstract: Provided are polymer compositions comprising (i) one or more multistage polymers comprising (a) a first stage polymer, wherein the first stage polymer comprises polymerized units derived from at least one organo-phosphorus monomers, and (b) a final stage polymer, and (ii) at least one organo-phosphorus soap in an amount of 50 ppm or more, based on the dry weight of the multistage polymer. Also provided are matrix resin compositions comprising such polymer compositions and a matrix resin.