C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/406, 400/906
C08F 220/56 (2006.01) C08F 220/34 (2006.01) C08F 226/04 (2006.01)
Patent
CA 1242050
ABSTRACT OF THE DISCLOSURE The present invention provides a process for improved incorporation of diallyldimethylammonium chloride (DADMAC) into an acrylamide polymer. This invention makes use of a copolymerizable promoter monomer. Also provided by the present invention are inverse emulsion terpolymers of diallyldimethylammonim chloride. The improved incorporation resides in the use of a promoter monomer that is more reactive with acrylamide than is the DADMAC monomer and is selected from Image wherein R is -H or CH3; X is -O-, or -NH-; n has a value of 2-4; and A is an ion selected from the group consisting of C1- CH3SO4-, HSO4- and NO3-. Specific monomers within this formula included, for example, 2-methacryloylethyltrimethylammonium chloride and 2-acryloylethyltrimethylammonium chloride. Typical of such promoter monomers are 2-methacryl- oylethyl trimethyl ammonium chloride and 2-acryloylethyl trimethyl ammonium chloride.
497742
Becker Larry W.
Larson Eric H.
Gowling Lafleur Henderson Llp
S.n.f.
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