-
公开(公告)号:DE3820362A1
公开(公告)日:1990-03-15
申请号:DE3820362
申请日:1988-06-15
Applicant: BASF AG
Inventor: PIPPER GUNTER , SIMON GEORG NIKOLAUS DR , HEINZ GERHARD DR , ITTEMANN PETER DR , SCHLEIER GISBERT DR
Abstract: Process for the continuous preparation of linear thermoplastic polyesters, in which a) a transesterification or esterification product of aliphatic and/or aromatic dicarboxylic acids having a molecular weight /l, and in step c), the precondensate is further condensed at a temperature of from 240 to 290 DEG C under a pressure of from 0.5 to 20 mm Hg and a residence time of from 10 to 40 minutes, giving polyesters which are suitable for granulation.
-
-
公开(公告)号:DE3807296A1
公开(公告)日:1989-09-14
申请号:DE3807296
申请日:1988-03-05
Applicant: BASF AG
Inventor: ITTEMANN PETER DR , HEINZ GERHARD DR
-
公开(公告)号:DE3804159A1
公开(公告)日:1989-08-24
申请号:DE3804159
申请日:1988-02-11
Applicant: BASF AG
Inventor: HEINZ GERHARD DR , LIEDER ROBERT RALF DR , KOCH JUERGEN DR
Abstract: The polyaryl ether ketones are built up essentially from (A) 55 - 95 mol % of recurring units of the formula I or ring-substituted C1-C6-alkyl, C1-C6-alkoxy, aryl, chlorine or fluorine derivatives thereof, where s and t are each 0, 1, 2 or 3, and Q and T may each be -O- or -CO-, and (B) 5 - 45 mol % of recurring units of the formula II in which Ar , Ar , Ar , Ar and Ar , independently of one another, are each a phenylene, biphenylene or naphthylene group or a C1-C6-alkyl, C1-C6-alkoxy, aryl, chlorine or fluorine derivative thereof, Q' and T' may each be -O- or -CO-, and s' and t' are each 0, 1, 2 or 3, with the proviso that at least one of the substituents Ar , Ar , Ar , Ar and Ar is a biphenylene or naphthylene group or a C1-C6-alkyl, C1-C6-alkoxy, aryl, chlorine or fluorine derivative of such a group, and not all the parameters s, t, s' and t' are simultaneously 0 if Ar is a biphenylene group.
-
公开(公告)号:DE3742445A1
公开(公告)日:1989-06-29
申请号:DE3742445
申请日:1987-12-15
Applicant: BASF AG
Inventor: ITTEMANN PETER DR , HEINZ GERHARD DR
-
36.
公开(公告)号:DE3721337A1
公开(公告)日:1989-01-05
申请号:DE3721337
申请日:1987-06-27
Applicant: BASF AG
Inventor: ITTEMANN PETER DR , SIMON GEORG NIKOLAUS DR , HEINZ GERHARD DR , ZEINER HARTMUT DR , BUCHERT HERMANN DR , SEIBRING JOACHIM DR
Abstract: High-temperature-resistant thermoplastic moulding compositions based on polyaryl ether sulphones and optionally polyether ketones containing less than 10 ppm of alkali metal salts, based on the entire polymer.
-
公开(公告)号:DE3700810A1
公开(公告)日:1988-07-28
申请号:DE3700810
申请日:1987-01-14
Applicant: BASF AG
Inventor: HEINZ GERHARD DR , KOCH JUERGEN DR , EGGERSDORFER MANFRED DR , HENKELMANN JOCHEM DR
-
公开(公告)号:DE3700809A1
公开(公告)日:1988-07-28
申请号:DE3700809
申请日:1987-01-14
Applicant: BASF AG
Inventor: EGGERSDORFER MANFRED DR , HENKELMANN JOCHEN DR , HEINZ GERHARD DR , KOCH JUERGEN DR
Abstract: Aryl ether ketones of the general formula I I where n is from 0 to 5, X is +TR and Y is tert-butyl, acetyl, benzyl, benzoyl, tert-butoxycarbonyl or, in the case of n=0, H, and the ring-substituted C1-C8-alkyl, C1-C8-alkoxy, aryl, chlorine or fluorine derivatives thereof are useful for preparing highly heat-resistant polyaryl ether ketones.
-
公开(公告)号:DE3629121A1
公开(公告)日:1988-03-10
申请号:DE3629121
申请日:1986-08-27
Applicant: BASF AG
Inventor: KOCH JUERGEN DR , FISCHER JUERGEN DR , HEINZ GERHARD DR , HEYM MANFRED DR
IPC: C08G73/10 , C08L65/00 , C08L67/00 , C08L71/00 , C08L79/08 , C08L81/02 , C08L81/06 , C08L81/00 , C08J3/24 , C08J5/00 , C08J5/04 , C08L67/02
Abstract: The invention relates to a process for the production of stress-cracking-resistant mouldings from heat-resistant aromatic polythioetherimides by thermoforming and subsequent crosslinking of the polymer. This crosslinking is carried out until the soluble contents of the polymer have been reduced to a value below 60% without any significant increase in the glass transition temperature. It can also be carried out until the soluble contents have been reduced to a value below 5%, in which case the glass transition temperature of the moulding increases by at least 20 DEG C.
-
公开(公告)号:DE3500706A1
公开(公告)日:1986-07-17
申请号:DE3500706
申请日:1985-01-11
Applicant: BASF AG
-
-
-
-
-
-
-
-
-