Cationic or amphoteric copolymers prepared in an inverse...

Details Cationic or amphoteric copolymers prepared in an inverse... Cationic or amphoteric copolymers prepared in an inverse...

2008-07-08

2008-07-08

Egwim, Kelechi C. (Department: 1796)

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...

C526S310000, C526S916000

Reexamination Certificate

active

10728145

ABSTRACT:
A papermaking method and a composition which utilize, as a drainage aid, a water-soluble cationic or amphoteric copolymer prepared via a water-in-oil polymerization technique that, absent a cross-linking agent, is characterized by a Huggins' constant (k′) determined in 0.01M NaCl greater than 0.3 and a storage modulus (G′) at 6.3 Hz greater than 50 Pa.

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