Global Patent Index - EP 1075460 A1

EP 1075460 A1 2001-02-14 - METHOD FOR PRODUCING POLYOLESTERS

Title (en)

METHOD FOR PRODUCING POLYOLESTERS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON POLYOLESTERN

Title (fr)

PROCEDE DE PREPARATION D'ESTERS DE POLYOL

Publication

EP 1075460 A1 (DE)

Application

EP 99948553 A

Priority

  • DE 19819656 A
  • EP 9902731 W

Abstract (en)

[origin: DE19819656A1] The invention relates to a method for producing polyolesters with an acid value of less than 1 and OH values of less than 30 by reacting triglycerides of native origin in the presence of a polyol with 2 to 15 C-atoms and 2 to 4 hydroxyl groups and a catalyst, at temperatures of 180 to 240 DEG C and at a reduced pressure of 5 to 2 kPa. During the reaction, the pressure is reduced to an end pressure of 1 to 0.01 kPa. The glycerol formed during the reaction is continually removed.

IPC 1-7 (main, further and additional classification)

C07C 67/03; C07C 69/24; C07C 69/52; C10M 105/38

IPC 8 full level (invention and additional information)

C07C 67/03 (2006.01); C10M 105/38 (2006.01)

CPC (invention and additional information)

C10M 105/38 (2013.01); C07C 67/03 (2013.01)

Combination set (CPC)

C07C 67/03 + C07C 69/52

Citation (search report)

See references of WO 9957092A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

DE 19819656 A1 19991104; EP 1075460 A1 20010214; WO 9957092 A1 19991111

INPADOC legal status


2004-01-07 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030703

2002-10-09 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020823

2002-04-24 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: COGNIS DEUTSCHLAND GMBH & CO. KG

2001-02-14 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001024

2001-02-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE