EP 1036105 A1 20000920 - PREPARATION OF POLYESTERS AND ESTERS FROM COMPOUNDS CONTAINING SECONDARY HYDROXYL GROUPS
Title (en)
PREPARATION OF POLYESTERS AND ESTERS FROM COMPOUNDS CONTAINING SECONDARY HYDROXYL GROUPS
Title (de)
DARSTELLUNG VON POLYESTERN UND ESTERN AUS VERBINDUNGEN, DIE SEKUNDÄRE HYDROXYLGRUPPEN ENTHALTEN
Title (fr)
PREPARATION DE POLYESTERS ET D'ESTERS A PARTIR DE COMPOSES RENFERMANT DES GROUPES HYDROXYLES SECONDAIRES
Publication
Application
Priority
- US 9825578 W 19981203
- US 98522197 A 19971204
Abstract (en)
[origin: WO9928368A1] A process for preparing a polyester from a polyol containing a secondary hydroxyl group in high yield and with an improved esterification rate is described. The process comprises reacting a polyol compound containing at least one secondary hydroxyl group with a polycarboxyl compound in the presence of at least one C1-C3 alkyltin compound. The C1-C3 alkyltin is selected from a C1-C3 alkyltin salt of a carboxylic acid, a C1-C3 alkyl stannoic acid, a C1-C3 alkyltin oxide, a C1-C3 alkyltin halide and a mixture thereof. The invention also relates to polyesters made by the above process which may be used in molded articles, fibers, coatings and adhesive formulations. The process of the invention can also be used for the preparation of an ester from a secondary alcohol. Thus, in another embodiment, the invention relates to a process for preparing esters which comprises reacting a carboxyl compound and a secondary alcohol in the presence of a catalytically effective amount of at least one C1-C3 alkyltin catalyst as described above.
IPC 1-7
IPC 8 full level
C07C 67/08 (2006.01); C08G 63/85 (2006.01)
CPC (source: EP)
C07C 67/08 (2013.01); C08G 63/85 (2013.01)
Citation (search report)
See references of WO 9928368A1
Designated contracting state (EPC)
BE DE FR GB NL SE
DOCDB simple family (publication)
WO 9928368 A1 19990610; BR 9815362 A 20001010; CN 1411480 A 20030416; EP 1036105 A1 20000920; JP 2001525432 A 20011211
DOCDB simple family (application)
US 9825578 W 19981203; BR 9815362 A 19981203; CN 98813360 A 19981203; EP 98961869 A 19981203; JP 2000523257 A 19981203