EP 1131367 A1 20010912 - POLYETHYLENE NAPHTHALATE POLYESTER POLYOL AND RIGID POLYURETHANE FOAMS OBTAINED THEREFROM
Title (en)
POLYETHYLENE NAPHTHALATE POLYESTER POLYOL AND RIGID POLYURETHANE FOAMS OBTAINED THEREFROM
Title (de)
POLYETHYLENNAPHTHALAT-POLYESTERPOLYOL UND DARAUS HERGESTELLTE POLYURETHANHARTSCHÄUME
Title (fr)
POLYESTER POLYOL DE POLYETHYLENE NAPHTALATE ET MOUSSES RIGIDES DE POLYURETHANE OBTENUES A L'AIDE DE CETTE SUBSTANCE
Publication
Application
Priority
- EP 99950662 A 19991007
- EP 9907520 W 19991007
- EP 98121285 A 19981109
Abstract (en)
[origin: WO0027899A1] Process for preparing a poly(alkylene polyaromatic dicarboxylate)ester based polyester polyol comprising the steps of a) depolymerising poly(alkylene polyaromatic dicarboxylate) in the presence of a glycol and b) transesterifying the obtained product by addition of polycarboxylic acids, anhydrides or esters and/or polyhydric alcohols and use of the thus obtained polyester polyol in the manufacture of rigid polyurethane and urethane-modified polyisocyanurate foams.
IPC 1-7
IPC 8 full level
C08J 11/24 (2006.01); C08G 18/42 (2006.01); C08G 63/189 (2006.01); C08G 63/78 (2006.01); C08G 63/88 (2006.01); C08G 63/85 (2006.01); C08G 101/00 (2006.01)
CPC (source: EP)
C08G 18/4216 (2013.01); C08G 63/189 (2013.01); C08G 63/85 (2013.01); C08G 2110/0025 (2021.01)
Citation (search report)
See references of WO 0027899A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 0027899 A1 20000518; AU 6335499 A 20000529; CA 2346806 A1 20000518; CN 1328583 A 20011226; EP 1131367 A1 20010912; JP 2002529558 A 20020910
DOCDB simple family (application)
EP 9907520 W 19991007; AU 6335499 A 19991007; CA 2346806 A 19991007; CN 99812856 A 19991007; EP 99950662 A 19991007; JP 2000581075 A 19991007