公开(公告)号：US10597488B2

公开(公告)日：2020-03-24

申请号：US16062909

申请日：2016-11-16

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Pankaj Singh Gautam ,  Rahul Patil ,  Jorge Jimenez ,  Joshua D. Taylor ,  James Alan Mahood ,  James Franklin Hoover

IPC: C08G63/64 ,  C08G63/81 ,  C08G64/20 ,  C08K5/13 ,  C08G64/24 ,  B01J19/00 ,  B01J19/18

Abstract: A method of preparing a poly(ester-carbonate) includes contacting an aqueous solution including a dicarboxylic acid with a first solution including phosgene and a first organic solvent in a tubular reactor to provide a first reaction mixture. A dihydroxy aromatic compound, the corresponding dialkali metal salt of the dihydroxy aromatic compound, or a combination comprising at least one of the foregoing, water, and a second organic solvent are combined to provide a second reaction mixture. The method further includes introducing the first reaction mixture, the second reaction mixture, and a second solution comprising phosgene to a tank reactor, wherein the tank reactor has a first pH of 7 to 10. The pH is optionally raised to 9 to 11 to provide a third reaction mixture including the poly(ester-carbonate). Poly(ester-carbonate)s prepared according to the method described herein are also disclosed.

公开(公告)号：US20180362706A1

公开(公告)日：2018-12-20

申请号：US16062909

申请日：2016-11-16

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Pankaj Singh Gautam ,  Rahul Patil ,  Jorge Jimenez ,  Joshua D. Taylor ,  James Alan Mahood ,  James Franklin Hoover

IPC: C08G63/64 ,  C08G63/81 ,  C08G64/20 ,  C08K5/13

CPC classification number: C08G63/64 ,  B01J19/0066 ,  B01J19/1812 ,  C08G63/81 ,  C08G64/205 ,  C08G64/24 ,  C08G2105/00 ,  C08K5/13

Abstract: A method of preparing a poly(ester-carbonate) includes contacting an aqueous solution including a dicarboxylic acid with a first solution including phosgene and a first organic solvent in a tubular reactor to provide a first reaction mixture. A dihydroxy aromatic compound, the corresponding dialkali metal salt of the dihydroxy aromatic compound, or a combination comprising at least one of the foregoing, water, and a second organic solvent are combined to provide a second reaction mixture. The method further includes introducing the first reaction mixture, the second reaction mixture, and a second solution comprising phosgene to a tank reactor, wherein the tank reactor has a first pH of 7 to 10. The pH is optionally raised to 9 to 11 to provide a third reaction mixture including the poly(ester-carbonate). Poly(ester-carbonate)s prepared according to the method described herein are also disclosed.