公开(公告)号：US20190040192A1

公开(公告)日：2019-02-07

申请号：US16076897

申请日：2017-01-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Prashant Kumar ,  Husnu Alp Alidedeoglu

IPC: C08G63/183 ,  C08G63/78 ,  C08G63/85 ,  D01F6/62

Abstract: The present invention relates to a process for the production of poly(butylene terephthalate) comprising the steps of: (i) providing a poly(butylene terephthalate) oligomer having an intrinsic viscosity (IV) of 0.25-0.35 dl/g, a carboxylic end group (CEG) content of 25-35 mmol/kg, and a ratio of IV:CEG of ≤15 dl/mmol; (ii) introducing said poly(butylene terephthalate) oligomer to a low-pressure reactor; and (iii) performing a polycondensation reaction in said low-pressure reactor by subjecting the poly(butylene terephthalate) oligomer to a pressure of ≥0.05 and ≤5.0 mbar at a temperature of 235 to 255° C., for such average residence time to obtain a poly(butylene terephthalate) having a ratio of IV:CEG of ≥18 dl/mmol, preferably ≥25 dl/mmol and having an IV of ≥0.45 dl/g; wherein steps (i), (ii) and (iii) are conducted in that order. Such process allows for the production of poly(butylene terephthalates) having a desired low CEG at given, desired high, IV using a poly(butylene terephthalate) oligomer having a relatively high CEG at given IV. Such process allows for the production of poly(butylene terephthalates) using poly(butylene terephthalate) oligomers obtained from an esterification process using PTA and 1,4-butanediol.

公开(公告)号：US20160083511A1

公开(公告)日：2016-03-24

申请号：US14787870

申请日：2014-07-25

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Husnu Alp Alidedeoglu ,  Tianhua Ding ,  Ganesh Kannan

IPC: C08G63/85 ,  C08G63/183 ,  C08G63/80 ,  C08J11/24

CPC classification number: C08G63/85 ,  C08G63/183 ,  C08G63/78 ,  C08G63/80 ,  C08J11/16 ,  C08J11/24 ,  C08J2367/02 ,  Y02W30/705 ,  Y02W30/706

Abstract: Disclosed is an improved process for preparing a modified polyalkylene terephthalate by melt polycondensation followed optionally by solid state condensation comprising reacting an alkylene diol and polyethylene terephthalate, wherein polymerization occurs in the presence of a catalyst complex formed by reaction of tetra(alkyl) titanate and a compound selected from phosphorus-containing compounds, nitrogen-containing compounds, boroncontaining compounds, and combinations thereof.

Abstract translation: 公开了一种通过熔融缩聚制备改性聚对苯二甲酸亚烷基酯的方法，其中任选地通过固态缩合反应，包括使亚烷基二醇和聚对苯二甲酸乙二醇酯反应，其中聚合反应在由钛酸四（烷基）酯和 选自含磷化合物，含氮化合物，含硼化合物及其组合的化合物。

公开(公告)号：US10093797B2

公开(公告)日：2018-10-09

申请号：US14877552

申请日：2015-10-07

Applicant: SABIC Global Technologies B.V.

Inventor： Husnu Alp Alidedeoglu ,  Tianhua Ding ,  Ganesh Kannan

IPC: C08F299/04 ,  C08L67/02 ,  C08G63/85 ,  C08G63/183 ,  C08K3/40 ,  C08K5/103 ,  C08L67/06 ,  C08L69/00

Abstract: Disclosed is a process for the manufacture of a polyalkylene terephthalate such as polybutylene terephthalate. In particular, the process comprises employing a titanium-containing catalyst formed by the reaction product of tetraalkyl titanate and a complexing agent comprising a phosphorous, nitrogen or boron atom. The process is used to prepare polyalkylene terephthalates characterized by improved hydrostability, as well as compositions derived therefrom.

公开(公告)号：US20180201729A1

公开(公告)日：2018-07-19

申请号：US15322570

申请日：2015-08-13

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Husnu Alp Alidedeoglu ,  Prashant Kumar ,  Osit Karroonnirun ,  Mark Nelson

IPC: C08G63/85 ,  C08G63/183

CPC classification number: C08G63/85 ,  C08G63/183 ,  C08G63/78

Abstract: Disclosed is a process for making oligomers of polybutylene terephthalate (PBT) with desirable intrinsic viscosity and carboxylic end group concentrations. The PBT oligomers are used in a continuous process for making polybutylene terephthalate (PBT) resin.

公开(公告)号：US09828485B2

公开(公告)日：2017-11-28

申请号：US14321025

申请日：2014-07-01

Applicant: SABIC Global Technologies B.V.

Inventor： Ganesh Kannan ,  Husnu Alp Alidedeoglu ,  Robert Russell Gallucci

IPC: H01L23/29 ,  C08F283/04 ,  C08G69/48 ,  C08L63/00 ,  C08L77/00 ,  C08K3/08 ,  C08K3/34 ,  C08G63/183 ,  C08G63/91 ,  C08J5/18 ,  C08L67/02 ,  C08L67/04 ,  C08K5/13

CPC classification number: C08K3/34 ,  C08G63/183 ,  C08G63/916 ,  C08J5/18 ,  C08J2367/02 ,  C08J2367/04 ,  C08K5/13 ,  C08L67/02 ,  C08L67/04 ,  C08L2666/18

Abstract: Biodegradable compositions containing an aliphatic-aromatic copolyester derived from aromatic polyesters. Methods of making the compositions and articles made from the compositions.

公开(公告)号：US20170204219A1

公开(公告)日：2017-07-20

申请号：US15326665

申请日：2015-08-04

Applicant: SABIC Global Technologies B.V.

Inventor： Husnu Alp Alidedeoglu ,  Prashant Kumar ,  Osit Karroonnirun ,  Mark Erik Nelson ,  Donald E. Owens, III

IPC: C08G63/78 ,  B01J19/18

CPC classification number: C08G63/785 ,  B01J19/1862 ,  B01J2219/1941

Abstract: The present invention is directed to a continuous process for preparing PBT from PBT oligomer.

公开(公告)号：US20170198090A1

公开(公告)日：2017-07-13

申请号：US15320888

申请日：2015-08-13

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Husnu Alp Alidedeoglu ,  Prashant Kumar

IPC: C08G63/85 ,  C08G63/183

CPC classification number: C08G63/85 ,  C08G63/183

Abstract: An improved process for making polybutylene terephthalate resin is disclosed. The resin is prepared from oligomers of purified terephthalic acid and 1,4-butane diol in the presence of a catalyst.

公开(公告)号：US09487622B2

公开(公告)日：2016-11-08

申请号：US14787870

申请日：2014-07-25

Applicant: SABIC Global Technologies B.V.

Inventor： Husnu Alp Alidedeoglu ,  Tianhua Ding ,  Ganesh Kannan

IPC: C08G63/85 ,  C08J11/24 ,  C08G63/183 ,  C08G63/80 ,  C08G63/78

CPC classification number: C08G63/85 ,  C08G63/183 ,  C08G63/78 ,  C08G63/80 ,  C08J11/16 ,  C08J11/24 ,  C08J2367/02 ,  Y02W30/705 ,  Y02W30/706

Abstract: Disclosed is an improved process for preparing a modified polyalkylene terephthalate by melt polycondensation followed optionally by solid state condensation comprising reacting an alkylene diol and polyethylene terephthalate, wherein polymerization occurs in the presence of a catalyst complex formed by reaction of tetra(alkyl) titanate and a compound selected from phosphorus-containing compounds, nitrogen-containing compounds, boroncontaining compounds, and combinations thereof.

Abstract translation: 公开了一种通过熔融缩聚制备改性聚对苯二甲酸亚烷基酯的方法，其中任选地通过固态缩合反应，包括使亚烷基二醇和聚对苯二甲酸乙二醇酯反应，其中聚合反应在由钛酸四（烷基）酯和 选自含磷化合物，含氮化合物，含硼化合物及其组合的化合物。