EP 0000948 B1 19811014 - PROCESS FOR THE PREPARATION OF POLYOL CONTAINING LIQUIDS FROM POLYURETHANE WASTES
Title (en)
PROCESS FOR THE PREPARATION OF POLYOL CONTAINING LIQUIDS FROM POLYURETHANE WASTES
Publication
Application
Priority
DE 2738572 A 19770826
Abstract (en)
[origin: EP0000948A1] 1. Method for the manufacture of polyhydric alcohol containing fluids from polyurethane scrap by heating of optionally reduced-size polyurethane scrap with at least one glycol in the presence of at least one metal of the first or of the second main groups of the periodic system of elements and/or at least one strongly basic compound of a metal of the first or second main group of the periodic system of elements as catalyst at temperatures of approximately 150 to 220 degrees C, characterised in that dipropylene glycol and/or tripropylene glycol are used as the glycol.
IPC 1-7
IPC 8 full level
C08J 11/24 (2006.01)
CPC (source: EP)
C08G 18/831 (2013.01); C08J 11/24 (2013.01); C08J 2375/04 (2013.01); Y02W 30/62 (2015.05)
Designated contracting state (EPC)
BE CH FR GB LU NL SE
DOCDB simple family (publication)
EP 0000948 A1 19790307; EP 0000948 B1 19811014; DE 2738572 A1 19790301; DE 2738572 B2 19790322; DE 2738572 C3 19791129
DOCDB simple family (application)
EP 78100751 A 19780825; DE 2738572 A 19770826