EP 1358244 A2 20031105 - POLYOLS CONTAINING CARBOXYL GROUPS AND PRODUCTION THEREOF
Title (en)
POLYOLS CONTAINING CARBOXYL GROUPS AND PRODUCTION THEREOF
Title (de)
CARBOXYLGRUPPENHALTIGE POLYOLE UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
POLYOLS CONTENANT DES GROUPES CARBOXYLE, ET LEUR PROCEDE DE PRODUCTION
Publication
Application
Priority
- US 0144214 W 20011126
- US 72326300 A 20001127
- US 99648001 A 20011120
Abstract (en)
[origin: WO0242348A2] The present invention is directed to a low viscosity carboxyl-containing polyol composition having a viscosity in the range of about 3,000-100,000 centipoise, and having an oligomer content of less than 30 mg KOH/g. Preferably, the carboxyl-containing polyol has one ester group per molecule. The carboxyl-containing polyol is suitable for use in preparing low viscosity polyurethane prepolymers. Also disclosed is a method of producing this carboxyl-containing polyol composition by reacting a low molecular weight triol with an acid anhydride in the presence of 25-500 ppm of an inorganic or organic acid catalyst. The organic or inorganic acid is preferably selected from the group consisting of hydrochloric acid, phosphoric acid, sulfuric acid, nitric acid, formic acid, proprionic acid, p-toluenesulfonic acid, oxalic acid, and combinations thereof. The present invention is also directed to methods of making the above carboxyl-containing polyols, as well as prepolymers and urethane polymers containing the above carboxyl-containing polyols.
IPC 1-7
IPC 8 full level
C07B 61/00 (2006.01); C07C 67/08 (2006.01); C07C 69/40 (2006.01); C07C 269/02 (2006.01); C07C 271/24 (2006.01); C08G 18/08 (2006.01); C08G 18/10 (2006.01); C08G 18/12 (2006.01); C08G 18/32 (2006.01); C08G 18/42 (2006.01); C08G 18/48 (2006.01); C08G 18/75 (2006.01); C08G 63/00 (2006.01); C08G 63/02 (2006.01); C08G 63/66 (2006.01); C08G 65/332 (2006.01); C08G 65/333 (2006.01)
IPC 8 main group level
C08G (2006.01)
CPC (source: EP KR)
C07C 69/40 (2013.01 - EP); C08G 18/0823 (2013.01 - EP); C08G 18/12 (2013.01 - EP); C08G 18/4241 (2013.01 - EP); C08G 18/4887 (2013.01 - EP); C08G 18/758 (2013.01 - EP); C08G 63/00 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0242348 A2 20020530; WO 0242348 A3 20030103; AU 1787302 A 20020603; EP 1358244 A2 20031105; EP 1358244 A4 20050209; JP 2004514752 A 20040520; KR 20040027502 A 20040401
DOCDB simple family (application)
US 0144214 W 20011126; AU 1787302 A 20011126; EP 01997514 A 20011126; JP 2002545062 A 20011126; KR 20037007024 A 20030526