Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1986-08-21
1988-01-05
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
5263182, 5263073, C08F22602, C08F22603
Patent
active
047177586
ABSTRACT:
A papermaking additive useful for papermaking in a neutral to alkaline pH region which comprises a water-soluble copolymer comprising (a) 1 to 20 mole % of dimethylaminopropyl (meth)acrylamide or its quaternized product, (b) 0.1 to 12 mole % of itaconic acid or its salt, and (c) 98.9 to 68 mole % of acrylamide, the (b)/(a) mole ratio being from 0.1 to 0.6.
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patent: 4218554 (1980-08-01), Foley, Jr.
patent: 4271058 (1981-06-01), Trabitzsch et al.
patent: 4314044 (1982-02-01), Hughes et al.
Narushima Mayumi
Ogawa Masatomi
DIC-Hercules Chemicals, Inc.
Sarofim N.
Schofer Joseph L.
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