EP 0000893 B1 19800917 - PROCESS FOR THE PREPARATION OF POLYISOCYANATES AND THEIR USE
Title (en)
PROCESS FOR THE PREPARATION OF POLYISOCYANATES AND THEIR USE
Publication
Application
Priority
DE 2737402 A 19770819
Abstract (en)
[origin: US4255570A] The invention relates to polyisocyanates corresponding to the following general formula: <IMAGE> wherein X represents a radical of the type obtained by removing the more reactive isocyanate group from an organic diisocyanate containing isocyanate groups of different reactivity; and Y represents a chlorine, bromine, C1-C8 alkyl, C1-C8 alkoxy, C6-C10 aryl, C6-C10 aroxy radical or a radical corresponding to the general formula: -NH-CO-NH-X.
IPC 1-7
C07D 251/18; C07D 251/50; C07D 251/52; C07D 251/70; C08G 18/79
IPC 8 full level
C07D 251/18 (2006.01); C07D 251/50 (2006.01); C07D 251/52 (2006.01); C07D 251/70 (2006.01); C08G 18/79 (2006.01); C08G 18/80 (2006.01)
CPC (source: EP US)
C07D 251/18 (2013.01 - EP US); C07D 251/50 (2013.01 - EP US); C07D 251/52 (2013.01 - EP US); C07D 251/70 (2013.01 - EP US); C08G 18/8058 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0000893 A1 19790307; EP 0000893 B1 19800917; DE 2737402 A1 19790222; DE 2860170 D1 19801218; IT 1106886 B 19851118; IT 7850756 A0 19780817; US 4255570 A 19810310; US 4348512 A 19820907
DOCDB simple family (application)
EP 78100606 A 19780807; DE 2737402 A 19770819; DE 2860170 T 19780807; IT 5075678 A 19780817; US 20611580 A 19801112; US 93061178 A 19780803