C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
117/196, 400/782
C08L 77/10 (2006.01) D21H 3/58 (1980.01)
Patent
CA 1149983
ABSTRACT OF THE DISCLOSURE A durable aqueous solution of a thermosetting resin having a relatively high solid content which imparts a high degree of wet strength to paper, is pro- duced by the reaction of an aliphatic dicarboxylic acid with a polyalkylenepolyamine to form a polyamidopoly- amine, which is successively subjected to reaction with epichlorohyrin, the first reaction being carried out using a molar ration of aliphatic dicarboxylic acid to polyalkylenepolyamine of 1 : 1.0 to 1.2 and continued until the viscosity ar 25°C of 50% aqueous solution of resulting polyamidopolyamine reaches 400 to 1,000 cps, and the second reaction being carried out using epichloro- hydrin in an amount of 1.6 to 1.7 moles per mole of the polyamide secondary amine and continued until the viscosity at 25°C of 15% aqueous solution of the resulting product reaches 30 to 150 cps.
336586
Kondo Norio
Takagishi Hisao
Fetherstonhaugh & Co.
Sumitomo Chemical Company Limited
LandOfFree
Production of aqueous solutions of cationic thermosetting... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Production of aqueous solutions of cationic thermosetting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of aqueous solutions of cationic thermosetting... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-272092