C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/2016, 9/51
C08L 71/02 (2006.01) C08G 69/40 (2006.01) C08L 77/06 (2006.01) D21H 17/55 (2006.01) D21H 21/10 (2006.01)
Patent
CA 1058794
ABSTRACT OF THE DISCLOSURE Crosslinked water-soluble reaction products for the papermaking industry obtained by reacting (a) 1 part by weight of an ethyleneimine-grafted polyamidoamine obtained by condensing 1 mole of a dicarboxylic acid having from 4 to 10 carbon atoms with from 0.8 to 1.4 moles of a polyalkylene polyamine having from 3 to 10 alkyleneimine units, followed by grafting of from 2 to 8 ethyleneimine units per basic nitrogen atom onto the resulting polyamidoamine, with (b) from 0.3 to 2 parts by weight of a reaction product obtained by reacting a polyalkylene oxide having from 8 to 100 alkylene oxide units with epichlorohydrin in the presence of a Lewis acid, so that from 1.0 to 1.5 moles of epichlorohydrin are present per equivalent of hydroxyl groups in the polyalkylene oxide, at a temperature of from 20° to 100°C in aqueous solution or in a solution in water and a water-soluble organic solvent, the solution having a solids content of from 5 to 50% by weight, the reaction being carried to a point at which the viscosity of an aqueous solution containing 20% of the auxiliary is from 300 to 2,500 centipoises at 20°C.
231008
Auhorn Werner
Fikentscher Rolf
Scharf Emil
Streit Werner
Basf Aktiengesellschaft
Na
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