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公开(公告)号：US20190270878A1
公开(公告)日：2019-09-05
申请号：US16319936
申请日：2017-09-08
Applicant: Rohm and Haas Company
Inventor： William Rohrbach
Abstract: Provided are polymer compositions polymer composition comprising (i) one or more multistage polymers comprising (a) a first stage polymer having a Tg of −20° C. or lower, and (b) a final stage polymer having a Tg of 50° C. or higher, (ii) one or more phosphate surfactant in an amount of 50 ppm or more, based on the dry weight of the multistage polymer, and (iii) one or more alkaline phosphate in an amount of 100 ppm or more, measured as the weight of phosphorous, based on the dry weight of the multistage polymer. Also provided are matrix resin compositions comprising such polymer compositions and a matrix resin.
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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.
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公开(公告)号：US10920067B2
公开(公告)日：2021-02-16
申请号：US16319936
申请日：2017-09-08
Applicant: Rohm and Haas Company
Inventor： William Rohrbach
Abstract: Provided are polymer compositions polymer composition comprising (i) one or more multistage polymers comprising (a) a first stage polymer having a Tg of −20° C. or lower, and (b) a final stage polymer having a Tg of 50° C. or higher, (ii) one or more phosphate surfactant in an amount of 50 ppm or more, based on the dry weight of the multistage polymer, and (iii) one or more alkaline phosphate in an amount of 100 ppm or more, measured as the weight of phosphorous, based on the dry weight of the multistage polymer. Also provided are matrix resin compositions comprising such polymer compositions and a matrix resin.
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Patent Agency Ranking
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.
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公开(公告)号：US20200181336A1
公开(公告)日：2020-06-11
申请号：US16319941
申请日：2017-09-08
Applicant: Rohm and Haas Company
Inventor： William Rohrbach
IPC: C08J3/16 , C08K3/32 , C08F236/10 , C08L9/08 , C08J3/205
Abstract: Provided are processes for making a polymer composition comprising (i) providing a multistage polymer latex by emulsion polymerization in the presence of a phosphate surfactant, wherein the multistage polymer comprises (a) a first stage polymer having a Tg of −20° C. or lower, and (b) a final stage polymer having a Tg of 50° C. or higher, (ii) coagulating the multistage polymer latex, (iii) treating the coagulated multistage polymer with an alkaline phosphate, (iv) drying the coagulated multistage polymer to a water content of less than 1 weight % based on the dry weight of the multistage polymer, wherein the weight of the dried multistage polymer comprises 100 ppm or more, based on the dry weight of the multistage polymer, of phosphorous that is in the form of an alkaline phosphate. Also provided are processes for making matrix resin compositions comprising such polymer compositions and a matrix resin.
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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
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.
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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
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.
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公开(公告)号：US10913828B2
公开(公告)日：2021-02-09
申请号：US16319941
申请日：2017-09-08
Applicant: Rohm and Haas Company
Inventor： William Rohrbach
Abstract: Provided are processes for making a polymer composition comprising (i) providing a multistage polymer latex by emulsion polymerization in the presence of a phosphate surfactant, wherein the multistage polymer comprises (a) a first stage polymer having a Tg of −20° C. or lower, and (b) a final stage polymer having a Tg of 50° C. or higher, (ii) coagulating the multistage polymer latex, (iii) treating the coagulated multistage polymer with an alkaline phosphate, (iv) drying the coagulated multistage polymer to a water content of less than 1 weight % based on the dry weight of the multistage polymer, wherein the weight of the dried multistage polymer comprises 100 ppm or more, based on the dry weight of the multistage polymer, of phosphorous that is in the form of an alkaline phosphate. Also provided are processes for making matrix resin compositions comprising such polymer compositions and a matrix resin.
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