EP 0691998 A1 19960117 - METHOD FOR STABILIZING AN ORGANIC MATERIAL WHICH IS SUBJECT TO THERMAL AND/OR OXIDATIVE DETERIORATION AND RESULTING STABILIZED MATERIAL
Title (en)
METHOD FOR STABILIZING AN ORGANIC MATERIAL WHICH IS SUBJECT TO THERMAL AND/OR OXIDATIVE DETERIORATION AND RESULTING STABILIZED MATERIAL
Title (de)
VERFAHREN ZUR STABILISIERUNG VON ORGANISCHEM MATERIAL, WELCHES THERMISCHEM UND OXIDATIVEM ZERFALL AUSGESETZT IST, SOWIE DARAUS RESULTIERENDES STABILISIERTES MATERIAL
Title (fr)
PROCEDE DE STABILISATION D'UN MATERIAU ORGANIQUE SUBISSANT UNE DETERIORATION THERMIQUE ET/OU OXYDANTE ET MATERIAU STABILISE RESULTANT
Publication
Application
Priority
- US 9403037 W 19940322
- US 3975693 A 19930330
Abstract (en)
[origin: WO9422945A1] Organic materials which are subject to thermal and/or oxidative deterioration, e.g., polyether polyols and polyurethane foams prepared from polyether polyols, are stabilized against such deterioration by the addition thereto of a stabilizing amount of a liquid, crystallization-resistant mixture of phenolic esters made up predominantly of phenolic monoester(s), the mixture of phenolic esters being obtained by reacting an alkyl ester of a 3,5-dialkyl-4-hydroxyphenyl alkanoic acid with a polyhydroxyl alcohol under esterification reaction conditions employing an esterification reaction catalyst.
IPC 1-7
IPC 8 full level
C08L 71/02 (2006.01); C08K 5/134 (2006.01); C08L 75/00 (2006.01); C08L 75/04 (2006.01)
CPC (source: EP KR)
C08K 5/13 (2013.01 - KR); C08K 5/1345 (2013.01 - EP)
Citation (search report)
See references of WO 9422945A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9422945 A1 19941013; AU 6521794 A 19941024; BR 9406177 A 19960206; CA 2158177 A1 19941013; CZ 250395 A3 19960117; EP 0691998 A1 19960117; FI 954640 A0 19950929; FI 954640 A 19950929; JP H08503993 A 19960430; KR 960701142 A 19960224
DOCDB simple family (application)
US 9403037 W 19940322; AU 6521794 A 19940322; BR 9406177 A 19940322; CA 2158177 A 19940322; CZ 250395 A 19940322; EP 94912821 A 19940322; FI 954640 A 19950929; JP 52214094 A 19940322; KR 19950704161 A 19950927