Title (en)

METHOD FOR OBTAINING POLYAMIDOAMINE-EPICHLORHYDRIN RESIN SUITED FOR MAKING WET-STRENGTH PAPER WITH LOW MONOCHLORO-3-PROPANEDIOL-1,2 CONTENT

Title (de)

VERFAHREN ZUM GEWINNEN VON POLYAMIDOAMIN-EPICHLOROHYDRINHARZ GEEIGNET ZUR DARSTELLUNG VON MONOCHLORO-3-PROPANEDIOL-1,2-ARMEM NASSFESTEM PAPIER

Title (fr)

PROCEDE POUR L'OBTENTION DE RESINES POLYAMIDOAMINE-EPICHLORHYDRINE PROPRES A LA FABRICATION DE PAPIERS RESISTANTS HUMIDES A FAIBLE TENEUR EN MONOCHLORO-3-PROPANEDIOL-1,2

Publication

EP 1254189 A1 20021106 (FR)

Application

EP 00958750 A 20000828

Priority

• FR 0002386 W 20000828
• FR 9911078 A 19990903

Abstract (en)

[origin: FR2798132A1] The invention concerns a method for obtaining polyamidoamine-epichlorhydrin resins (PAE) suited for making wet-strength paper with low monochloro-3-propanediol-1,2 content. The method consists in synthesizing resins as such, which are then percolated on activated carbon columns. Thus aqueous resins are obtained free of detectable organo-chlorinated by-products, which are used as wet-strength additives for making paper for special uses containing less than 50 ppb of monochloro-3-propanediol-1,2.

IPC 1-7

C08G 73/02; D21H 27/08; D21H 17/55

IPC 8 full level

C08G 65/24 (2006.01); C08G 69/48 (2006.01); C08G 73/02 (2006.01); C08L 71/03 (2006.01); D21H 21/20 (2006.01); D21H 17/54 (2006.01)

CPC (source: EP)

C08G 65/24 (2013.01); C08G 69/48 (2013.01); C08G 73/0286 (2013.01); C08L 71/03 (2013.01); D21H 21/20 (2013.01); D21H 17/54 (2013.01)

Citation (search report)

See references of WO 0118093A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

FR 2798132 A1 20010309; FR 2798132 B1 20011012; AU 7017500 A 20010410; EP 1254189 A1 20021106; WO 0118093 A1 20010315

DOCDB simple family (application)

FR 9911078 A 19990903; AU 7017500 A 20000828; EP 00958750 A 20000828; FR 0002386 W 20000828