-
公开(公告)号：EP0577849A4
公开(公告)日：1995-03-01
申请号：EP93902544
申请日：1993-01-28
Applicant: DAICEL CHEM
Inventor： OKANO YOSHIMICHI , KANNO TATSUYA , YAMATO TSUTOMU , OSHINO YASUHIRO , TANIGAWA MICHIYO , KUWANA TAKAAKI , FUKUDA YUTAKA
CPC classification number: C08G64/14 , C08G64/30 , C08G64/307
-
公开(公告)号：DE69333628T2
公开(公告)日：2005-02-03
申请号：DE69333628
申请日：1993-10-01
Applicant: DAICEL CHEM
Inventor： KANNO TATSUYA , FUKUDA YUTAKA
Abstract: A process for the preparation of a thermally stable polycarbonate by melt-polycondensing a dihydric phenol with a carbonic diester, which comprises using a compound selected from the group consisting of electron-donative amines and salts thereof as a catalyst.
-
公开(公告)号：DE69229653D1
公开(公告)日：1999-09-02
申请号：DE69229653
申请日：1992-03-17
Applicant: DAICEL CHEM
Inventor： YAMATO TSUTOMU , OSHINO YASUHIRO , FUKUDA YUTAKA , KANNO TATSUYA , KUWANA TAKAAKI , OKANO YOSHIMICHI
IPC: C08G64/30
Abstract: The present invention refers to a process for producing a polycarbonate by transesterification, which comprises reacting a dihydroxyl compound with a diester of carbonic acid in a reactor made of stainless steel and treated by electropolishing on a surface part thereof to contact the reactants.
-
公开(公告)号：DE69333628D1
公开(公告)日：2004-10-21
申请号：DE69333628
申请日：1993-10-01
Applicant: DAICEL CHEM
Inventor： KANNO TATSUYA , FUKUDA YUTAKA
Abstract: A process for the preparation of a thermally stable polycarbonate by melt-polycondensing a dihydric phenol with a carbonic diester, which comprises using a compound selected from the group consisting of electron-donative amines and salts thereof as a catalyst.
-
公开(公告)号：DE69425130T2
公开(公告)日：2000-11-09
申请号：DE69425130
申请日：1994-04-14
Applicant: DAICEL CHEM
Inventor： KANNO TATSUYA , FUKUDA YUTAKA
IPC: C08G64/30
-
Patent Agency Ranking
公开(公告)号：DE69425130D1
公开(公告)日：2000-08-10
申请号：DE69425130
申请日：1994-04-14
Applicant: DAICEL CHEM
Inventor： KANNO TATSUYA , FUKUDA YUTAKA
IPC: C08G64/30
-
公开(公告)号：DE69227786D1
公开(公告)日：1999-01-14
申请号：DE69227786
申请日：1992-03-17
Applicant: DAICEL CHEM
Inventor： YAMATO TSUTOMU , KUWANA TAKAAKI , OSHINO YASUHIRO , OKANO YOSHIMICHI , FUKUDA YUTAKA , KANNO TATSUYA
IPC: C08G64/30
Abstract: The present invention refers to a process for producing a polycarbonate by transesterification, which comprises reacting a dihydroxyl compound with a diester of carbonic acid in a reactor made of stainless steel and treated by electropolishing on a surface part thereof to contact the reactants.
-
公开(公告)号：DE69229653T2
公开(公告)日：1999-12-02
申请号：DE69229653
申请日：1992-03-17
Applicant: DAICEL CHEM
Inventor： YAMATO TSUTOMU , OSHINO YASUHIRO , FUKUDA YUTAKA , KANNO TATSUYA , KUWANA TAKAAKI , OKANO YOSHIMICHI
IPC: C08G64/30
Abstract: The present invention refers to a process for producing a polycarbonate by transesterification, which comprises reacting a dihydroxyl compound with a diester of carbonic acid in a reactor made of stainless steel and treated by electropolishing on a surface part thereof to contact the reactants.
-
公开(公告)号：DE69229088T2
公开(公告)日：1999-08-26
申请号：DE69229088
申请日：1992-02-28
Applicant: DAICEL CHEM
Inventor： YAMATO TSUTOMU , OSHINO YASUHIRO , FUKUDA YUTAKA , KANNO TATSUYA , KUWANA TAKAAKI
-
公开(公告)号：DE69229088D1
公开(公告)日：1999-06-10
申请号：DE69229088
申请日：1992-02-28
Applicant: DAICEL CHEM
Inventor： YAMATO TSUTOMU , OSHINO YASUHIRO , FUKUDA YUTAKA , KANNO TATSUYA , KUWANA TAKAAKI
-
-
-
-
-
-
-
-
-
Search Results
47
records
(took 0.021 seconds)
