公开(公告)号：US11879035B2

公开(公告)日：2024-01-23

申请号：US17284289

申请日：2019-09-12

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Ignacio Vic Fernandez ,  David Del Agua Hernandez ,  Helena Varela Rizo

IPC: C08G64/30 ,  C08G64/14 ,  B01J19/24 ,  C08G64/20 ,  C08L69/00

CPC classification number: C08G64/14 ,  B01J19/245 ,  C08G64/205 ,  C08G64/307 ,  C08L69/00 ,  C08G2115/00 ,  C08G2390/00 ,  C08L2203/30

Abstract: The present invention relates to an aromatic polycarbonate obtained via the melt transesterification of a diaryl carbonate, a bisphenol and an endcapping agent selected from paracumyl phenol, dicumyl phenol, p-tert-butyl phenol and mixtures of at least two of said endcapping agents, said polycarbonate having a melt volume rate of at least 20 cm3/10 min (ISO 1133, 300° C., 1.2 kg), a terminal hydroxyl group content of at most 800 ppm by weight, a Fries branching content of at most 1300 ppm by weight and a content of bulky end groups of at least 20 mol % defined as the sum of the mol % of end-groups based on said bisphenol and the mol % of end-groups based on said endcapping agent.

公开(公告)号：US20180112035A1

公开(公告)日：2018-04-26

申请号：US15573431

申请日：2016-05-26

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Helena Varela Rizo ,  Ignacio Vic Fernandez ,  David Del Agua Hernandez

IPC: C08G64/14 ,  C08G64/18 ,  C08G81/02 ,  C08L33/12 ,  C08L69/00

CPC classification number: C08G64/14 ,  C08G64/18 ,  C08G81/027 ,  C08L33/12 ,  C08L69/00

Abstract: The disclosure concerns a polymer derived from melt extrusion of (i) 80 to 95 wt % polycarbonate; said polycarbonate having and endcap level of 45% to 80% and a branching level of 300-5,000 m comprising the following branching structures: (ii) 4.9 to 20 wt % polymethyl methacrylate; and (iii) 0.1 to 1.5 wt % of catalyst; wherein the polymer is transparent, and wherein transesterification occurs with at least a portion of the polycarbonate and the polymethyl methacrylate during melt extrusion.

公开(公告)号：US10544302B2

公开(公告)日：2020-01-28

申请号：US15553196

申请日：2016-02-25

Applicant: SABIC Global Technologies B.V.

Inventor： Helena Varela Rizo ,  Ignacio Vic Fernandez ,  David Del Agua Hernandez

IPC: C08G63/64 ,  C08G81/00 ,  C08L69/00 ,  C08L77/10 ,  C08L77/12 ,  C09K19/38 ,  C09K19/54

Abstract: The disclosure concerns a polymer blend derived from transesterification of (i) 69.9 to 95 weight percent polycarbonate; and (ii) 4.9 to 30 weight percent liquid crystal polymer; in the presence of 0.01 to 0.1 weight percent catalyst; wherein the polymer is transparent.

公开(公告)号：US10155845B2

公开(公告)日：2018-12-18

申请号：US15573431

申请日：2016-05-26

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Helena Varela Rizo ,  Ignacio Vic Fernandez ,  David Del Agua Hernandez

IPC: C08G64/14 ,  C08G64/18 ,  C08G81/02 ,  C08L33/12 ,  C08L69/00

Abstract: The disclosure concerns a polymer derived from melt extrusion of (i) 80 to 95 wt % polycarbonate; said polycarbonate having and endcap level of 45% to 80% and a branching level of 300-5,000 m comprising the following branching structures: (ii) 4.9 to 20 wt % polymethyl methacrylate; and (iii) 0.1 to 1.5 wt % of catalyst; wherein the polymer is transparent, and wherein transesterification occurs with at least a portion of the polycarbonate and the polymethyl methacrylate during melt extrusion.