EP 0201761 B1 19890531 - USE OF BASIC AMIDES FOR INCREASING THE POROSITY IN PAPER OR PAPER-LIKE MATERIALS
Title (en)
USE OF BASIC AMIDES FOR INCREASING THE POROSITY IN PAPER OR PAPER-LIKE MATERIALS
Publication
Application
Priority
- DE 3515479 A 19850430
- DE 3527976 A 19850803
Abstract (en)
[origin: EP0201761A1] 1. Use of basic amides from amine mixtures which are obtained as tetramine bottom product in the industrial synthesis of dialkylenetriamines, in particular, dipropylenetriamine and more particularly diethylenetriamine from dihalogenoalkanes and ammonia after the triamine fraction has been distilled off or which are obtained in the industrial synthesis of diethylenetriamine and ethylenediamine from 1,2-dichloroethane and ammonia and long-chain fatty acids or fatty acid mixtures which have a melting point below 30 degrees C, for enhancing the porosity of paper or paperlike materials.
IPC 1-7
IPC 8 full level
D21H 17/07 (2006.01)
CPC (source: EP)
D21H 17/07 (2013.01)
Designated contracting state (EPC)
AT BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0201761 A1 19861120; EP 0201761 B1 19890531; AT E43662 T1 19890615; CA 1276415 C 19901120; DE 3663701 D1 19890706; FI 84196 B 19910715; FI 84196 C 19911025; FI 861780 A0 19860428; FI 861780 A 19861031
DOCDB simple family (application)
EP 86105464 A 19860421; AT 86105464 T 19860421; CA 507692 A 19860428; DE 3663701 T 19860421; FI 861780 A 19860428