公开(公告)号：US20190338072A1

公开(公告)日：2019-11-07

申请号：US16392871

申请日：2019-04-24

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Lohith Kenchaiah ,  Rajesh Chowdhury ,  Gurunath Pozhal Vengu ,  Gaurav Mediratta ,  Ranjith Choorikkat

IPC: C08G65/48 ,  B29C45/00

Abstract: A functional phenylene ether oligomer of the structure wherein Q1, Q2, Q3, Q4, x, y, and R are as defined herein. A curable composition includes the functional phenylene ether oligomer, and a thermoset composition includes a cured product derived from the curable composition.

公开(公告)号：US11078329B2

公开(公告)日：2021-08-03

申请号：US16392871

申请日：2019-04-24

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Lohith Kenchaiah ,  Rajesh Chowdhury ,  Gurunath Pozhal Vengu ,  Gaurav Mediratta ,  Ranjith Choorikkat

IPC: C08G65/48 ,  B29C45/00 ,  B29K71/00

Abstract: A functional phenylene ether oligomer of the structure wherein Q1, Q2, Q3, Q4, x, y, and R are as defined herein. A curable composition includes the functional phenylene ether oligomer, and a thermoset composition includes a cured product derived from the curable composition.

公开(公告)号：US11802184B2

公开(公告)日：2023-10-31

申请号：US16767169

申请日：2019-01-08

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Niket Sharma ,  Deshmukh Shivajirao Sandesh ,  Rajesh Chowdhury ,  Atul Pant ,  Gaurav Mediratta

IPC: C08J3/14 ,  B01D9/00

CPC classification number: C08J3/14 ,  B01D9/0054 ,  C08J2371/12

Abstract: A process and system for the precipitation of poly(phenylene ether) is described. Precipitated poly(phenylene ether) obtained by the processes disclosed herein are in the form of poly(phenylene ether) particles having a bulk density of 150 to 500 kg/m3, preferably 250 to 500 kg/m3.

公开(公告)号：US11472920B2

公开(公告)日：2022-10-18

申请号：US16683452

申请日：2019-11-14

Applicant: SABIC Global Technologies B.V.

Inventor： Sivakumar Sreeramagiri ,  Samir Anapat ,  Rajesh Chowdhury ,  Ravinath Manchana ,  Bhanu Kiran Vankayala ,  Hareesh Shamrao Deshpande

IPC: C08G65/44

Abstract: A method for preparing a poly(phenylene ether) includes feeding air to a continuous flow reactor that contains a reaction mixture including a phenol, a transition metal catalyst, and an organic solvent; and oxidatively polymerizing the reaction mixture at a specified temperature and pressure to form a poly(phenylene ether). The reaction mixture has a residence time in the continuous flow reactor of less than or equal to 30 minutes. Poly(phenylene ether)s prepared by the method and articles including the poly(phenylene ether)s are also described.

公开(公告)号：US20190284341A1

公开(公告)日：2019-09-19

申请号：US16270917

申请日：2019-02-08

Applicant: SABIC Global Technologies B.V.

Inventor： Shivakumar Konda ,  Rajesh Chowdhury ,  Indira Jyothi Polasa

IPC: C08G73/06 ,  C07D209/44

Abstract: A thermosetting composition, comprising a 4,4′-(((3-oxo-2-hydrocarbylisoindoline-1,1-diyl)bis(4,1-arylene))bis(oxy)) diphthalonitrile compound of formula (1) wherein R is a C1-12 hydrocarbyl, preferably a C1-6 alkyl or a C6-12 aryl; each occurrence of R2 and R3 is independently a hydrogen, a halogen, or a C1-25 hydrocarbyl, preferably hydrogen or a C1-6 alkyl, more preferably a hydrogen or C1-3 alkyl; and p and q are each independently 0 to 4, preferably 0 or 1, more preferably 0.

公开(公告)号：US20200231750A1

公开(公告)日：2020-07-23

申请号：US16683452

申请日：2019-11-14

Applicant: SABIC Global Technologies B.V.

Inventor： Sivakumar Sreeramagiri ,  Samir Anapat ,  Rajesh Chowdhury ,  Ravinath Manchana ,  Bhanu Kiran Vankayala ,  Hareesh Shamrao Deshpande

IPC: C08G65/44

Abstract: A method for preparing a poly(phenylene ether) includes feeding air to a continuous flow reactor that contains a reaction mixture including a phenol, a transition metal catalyst, and an organic solvent; and oxidatively polymerizing the reaction mixture at a specified temperature and pressure to form a poly(phenylene ether). The reaction mixture has a residence time in the continuous flow reactor of less than or equal to 30 minutes. Poly(phenylene ether)s prepared by the method and articles including the poly(phenylene ether)s are also described.

公开(公告)号：US20190284339A1

公开(公告)日：2019-09-19

申请号：US16270747

申请日：2019-02-08

Applicant: Sabic Global Technologies B.V.

Inventor： Rajesh Chowdhury ,  Shivakumar Konda

IPC: C08G73/06 ,  C09D179/04 ,  C09J179/04 ,  C09K3/10

Abstract: A thermoset polymer product comprising 4,4′-(((3-oxo-isoindoline-1,1-diyl)bis(4,1-arylene))bis(oxy))dibenzonitrile units of formula (2) wherein the units are derived from a 4,4′-(((3-oxo-isoindoline-1,1-diyl)bis(4,1-arylene))bis(oxy))diphthalonitrile monomer of formula (1) wherein R is a C1-25 hydrocarbyl, preferably a C1-6 alkyl, a phenyl, or a phenyl substituted with up to five C1-6 alkyl groups, more preferably a C1-3 alkyl or a phenyl; each occurrence of R2 and R3 is independently a hydrogen, a halogen, or a C1-25 hydrocarbyl, preferably a hydrogen, a halogen, or a C1-6 alkyl, more preferably a hydrogen or a C1-3 alkyl; p and q are each independently 0 to 4, preferably 0 or 1, more preferably 0; and G is a residue of a cyano group, and is a C1-25 hydrocarbyl linking group having a valence of at least 2.

公开(公告)号：US10259762B2

公开(公告)日：2019-04-16

申请号：US16061764

申请日：2016-11-10

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Rajesh Chowdhury ,  Eylem Tarkin-Tas ,  Xuezhi Jin

IPC: C07C41/01 ,  C07C46/08 ,  C07C37/11 ,  C08G65/48 ,  C08G65/44

Abstract: A phenylene ether oligomer is prepared by a process that includes partially converting 2,6-dimethylphenol to 3,3′,5,5′-tetramethyl-4,4′-dihydroxybiphenyl and/or 3,3′,5,5′-tetramethyldiphenoquinone, converting the residual 2,6 dimethylphenol to poly(2,6-dimethyl-1,4-phenylene ether) and any 3,3′,5,5′-tetramethyl-4,4′-dihydroxybiphenyl to 3,3′,5,5′-tetramethyldiphenoquinone, and reacting the poly(2,6-dimethyl-1,4-phenylene ether) and 3,3′,5,5′-tetramethyldiphenoquinone to form the phenylene ether oligomer. The preparation can be conducted without isolation of intermediates.