Water-soluble quaternary polyammonium salts, process for their preparation and their use
The title polymers are prepd. by radical polymn. of unsatd. quaternary ammonium compds. with addn. of 0.1-3 mol% crosslinking monomers at 25-90% conversion. Stirring 180 g 50% aq. (CH2:CHCH2)2NMe2+Cl- (I) with 2 mol% (NH4)2S2O8 and 2 mol% (NH4)2CO3 at 18-22 Deg for 8 h and 60 Deg for 4 h with addn. of 1 mol% triethanolamine over 10 h and 1 mol% (CH2:CHCH2)3NMe+Cl- in 50 g 50% aq. I after 6 h gave a 97% conversion to a clear soln. of polymer with relative soln. viscosity 3.47 and branching no. 18/100 I units. Addn. of the crosslinking agent at the start of polymn. resulted in complete gelation. [on SciFinder (R)]
5582910
Alternative title(s) : (de) Wasserlösliche quartäre polyammoniumsalze, verfahren zu ihrer herstellung und ihre verwendung. (fr) Sels de poly-ammonium quaternaires solubles dans l'eau, procédé de leur préparation et leur utilisation. (en) Water-soluble quaternary polyammonium salts, process for their preparation and their use.
Patent number | Country code | Kind code | Date issued |
ES2056805 | ES | T3 | 1994-10-16 |
DE3785721 | DE | D1 | 1993-06-09 |
AT89018 | AT | T | 1993-05-15 |
EP0264710 | EP | B1 | 1993-05-05 |
DD272191 | DD | A3 | 1989-10-04 |
EP0264710 | EP | A1 | 1988-04-27 |