公开(公告)号：DE3701299A1

公开(公告)日：1988-07-28

申请号：DE3701299

申请日：1987-01-17

Applicant: BASF AG

Inventor： HESSE ANTON DR ,  HOLOCH JAN DR ,  LAGALY WERNER

IPC: C08F299/04 ,  C08G63/54 ,  C08G63/676 ,  C08G63/52 ,  C08G63/22 ,  C08L67/06

Abstract: The invention relates to a process for the preparation of unsaturated polyester resins having good styrene compatibility from maleic acid, phthalic acid, propylene glycol and dipropylene glycol with a molar maleic acid: phthalic acid ratio of between 1:0.05 and 1:0.45 and with a molar maleic acid: dipropylene glycol ratio of from 1:0.05 to 1:0.6, where, in a first step, phthalic acid or phthalic anhydride is esterified by means of an excess of glycols, and subsequently, in a second step, fumaric acid, maleic acid or maleic anhydride and any remaining glycols are added and esterified. The polyester resins can be used for the preparation of SMC and BMC formulations

公开(公告)号：ES2052765T3

公开(公告)日：1994-07-16

申请号：ES88710002

申请日：1988-01-19

Applicant: BASF AG

Inventor： HESSE ANTON DR ,  HOLOCH JAN DR ,  LAGALY WERNER

IPC: C08F299/04 ,  C08G63/54 ,  C08G63/676 ,  C08G63/66

公开(公告)号：DE3875949D1

公开(公告)日：1992-12-17

申请号：DE3875949

申请日：1988-01-19

Applicant: BASF AG

Inventor： HESSE ANTON DR ,  HOLOCH JAN DR ,  LAGALY WERNER

IPC: C08F299/04 ,  C08G63/54 ,  C08G63/676 ,  C08G63/66

Abstract: Unsatd. polyester resins (I) contg. maleic acid (II), phthalic acid (III), propylene glycol (IV) and dipropylene glycol (V) units, with mol. ratio (II):(III) from 1:0.05 to 1:0.45 and mol. ratio (II):(V) from 1:0.05 to 1:0.6, are mfd. by (a) reaction of (III) with excess glycols, followed by (b) addn. of (II) or its anhydride or fumaric acid and any remaining glycol, and esterification. Pref. mol. ratio glycol:(III) in first stage is from 2:1 to 22:1; acid no. at end of (a) is pref. below 10; at end of (b) prod. pref. has acid no. 10-40, OH-no. 10-60, and melt viscosity 300-1500 mPa.s at 150 deg.C.

公开(公告)号：CA1090039A

公开(公告)日：1980-11-18

申请号：CA300189

申请日：1978-03-31

Applicant: BASF AG

Inventor： FISCHER HERMANN ,  THOMA RICHARD ,  KAEPPEL HANSHELMUT ,  KOCHENDOERFER ERNST ,  LAGALY WERNER

IPC: C08G63/00 ,  C08G63/52 ,  C08G63/68

Abstract: An economical and environmentally advantageous process for the continuous manufacture of unsaturated polyesters, wherein the vapors formed during the polycondensation are purified, in a two-part distillation column, to a degree where the residual content of organic starting materials is less than 1.5 per cent by weight, based on the total weight of the effluent, and the unconverted starting materials are recycled to the process.

公开(公告)号：DE2714898A1

公开(公告)日：1978-10-05

申请号：DE2714898

申请日：1977-04-02

Applicant: BASF AG

Inventor： FISCHER HERMANN DIPL CHEM DR ,  THOMA RICHARD DIPL ING DR ,  KAEPPEL HANSHELMUT ING GRAD ,  KOCHENDOERFER ERNST DIPL CHEM ,  LAGALY WERNER

IPC: C08G63/00 ,  C08G63/52

Abstract: An economical and environmentally advantageous process for the continuous manufacture of unsaturated polyesters, wherein the vapors formed during the polycondensation are purified, in a two-part distillation column, to a degree where the residual content of organic starting materials is less than 1.5 percent by weight, based on the total weight of the effluent, and the unconverted starting materials are recycled to the process.