Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1993-12-09
2000-10-17
Merriam, Andrew E. C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524523, 524555, 524827, 525217, 525218, 526307, 526310, C08L 3326, C08L 3314
Patent
active
061333689
ABSTRACT:
A dispersant system useful in the formation of dispersions of water soluble polymers is disclosed. The dispersant system comprises two polymers, the first being a copolymer of diallyldimethyl ammonium chloride with a C.sub.6 to C.sub.20 quaternary ammonium salt of a monomer selected the from the group consisting of dialkylaminoalkylacrylates, dialkylaminoalkylmethacrylates, dialkylaminoalkylacrylamides, and dialkylaminoalky (meth) acrylamides as well as certain alkyl esters of acrylic acid. The second polymer is a water soluble cationic polymer composed of at least 20 mole percent of a cationic monomer represented by the formula: ##STR1## where R.sub.4 is either hydrogen or CH.sub.3 ; R.sub.5 and R.sub.6 are each an alkyl group having 1 to 2 carbon atoms; R.sub.7 is a hydrogen atom or an alkyl group having 1 to 2 carbon atoms; A.sub.2 is either an oxygen atom or NH; B.sub.2 is either an alkylene group having 2 to 4 carbon atoms or a hydroxypropylene group and X.sub.2.sup.- is an anionic counterion.
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Hurlock John R.
Ramesh Manian
Breininger Thomas M.
Martin Michael B.
Merriam Andrew E. C.
Nalco Chemical Company
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