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patent
High-molecular-weight, water-soluble polyammonium compounds
1982
The title polymers, useful in coatings, paper manuf., etc., are prepd. by polymg. H2O-sol. di-2-alkenyldialkylammonium compds. in aq. solns. contg. peroxydisulfates, basic N compds., and pH control agents. Thus, a soln. 2.8 M in (CH2:CHCH2)2NMe2+ Cl-, 0.02 M in (NH4)2S2O8, 0.07 M in NaOH, and 0.02 M in Et3N [121-44-8] was stirred gently in air at 45 Deg for 10 h to give a polymer [26062-79-3] having relative viscosity (1% NaCl) 2.00, compared with 1.21 when polymd. under N with 10 ppm Chelaplex III in place of NaOH and amine. [on SciFinder (R)]
Type
patent
EPO Family ID
5528673
Inventors
Note
Alternative title(s) : (de) Verfahren zur herstellung hochmolekularer,wasserloeslicher polyammoniumverbindungen
EPFL units
Patent number | Country code | Kind code | Date issued |
DD156979 | |||
Available on Infoscience
February 27, 2006
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