Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...
Patent
1980-12-05
1982-03-09
Nielsen, Earl A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heterocyclic reactant containing as ring atoms oxygen,...
525523, 528492, C08G 7300
Patent
active
043190200
ABSTRACT:
Polyquaternary polymeric flocculants, containing a substantially reduced total residual amount of epihalohydrin and 1,3-dihalo-2-propanol and less than about 1000 ppm of dialkylamine, are produced by reacting a polyquaternary polymer prepared from epihalohydrin, dialkylamine, and optionally a polyfunctional amine with a compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl (C.sub.1 -C.sub.3), and R.sub.5 is hydrogen or hydroxyl.
REFERENCES:
patent: Re28807 (1976-05-01), Panzer et al.
patent: Re28808 (1976-05-01), Panzer et al.
patent: 3954680 (1976-05-01), Jansma
patent: 4054542 (1977-10-01), Buckman et al.
Bardoliwalla Dinshaw F.
Coscia Anthony T.
Tarvin Robert F.
American Cyanamid Company
Calnan William H.
Jacobs Bruce F.
Nielsen Earl A.
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