Amphoteric water-soluble polymer dispersion and use thereof

Details Amphoteric water-soluble polymer dispersion and use thereof Amphoteric water-soluble polymer dispersion and use thereof

2007-07-31

2007-07-31

Pezzuto, Helen L (Department: 1713)

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...

C526S287000, C526S288000, C526S307300, C526S307400, C526S307500, C526S307600, C526S312000, C210S732000, C210S733000, C210S734000

Reexamination Certificate

active

10480392

ABSTRACT:
The invention relates to an amphoteric water-soluble polymer dispersion containing polymer particles with particle diameters of 100 μm or smaller and produced by dispersion-copolymerization of a monomer mixture comprising a methacrylate monomer containing a quaternary ammonium salt group, an acrylate monomer containing a quaternary ammonium salt group, an anionic monomer, and a (meth)acrylamide in respectively ratios specified in an aqueous salt solution in the presence of a polymer dispersant soluble in the aqueous salt solution and the invention also relates to a dewatering agent for organic sludge, a pretreatment agent or yield improver for paper making raw materials, and/or a drainage properties-enhancing agent using the amphoteric water-soluble polymer.

REFERENCES:
patent: 5639841 (1997-06-01), Jenkins
patent: 5708071 (1998-01-01), Takeda
patent: 5846433 (1998-12-01), Sorensen et al.
patent: 5985992 (1999-11-01), Chen
patent: 6187853 (2001-02-01), Takeda et al.
patent: 6217778 (2001-04-01), Shing et al.
patent: 6365052 (2002-04-01), Sivakumar et al.
patent: 6590051 (2003-07-01), Carter et al.
patent: 7001953 (2006-02-01), Chen et al.
patent: 2002/0188040 (2002-12-01), Chen et al.
patent: 0735186 (1996-02-01), None
patent: 0 877 120 (1998-11-01), None
patent: 0877120 (1998-11-01), None
patent: 53-149292 (1978-12-01), None
patent: 62-205112 (1987-09-01), None
patent: 64-85199 (1989-03-01), None
patent: 2-105809 (1990-04-01), None
patent: 5-78997 (1993-03-01), None
patent: 7-188349 (1995-07-01), None
patent: 7-256299 (1995-10-01), None
patent: 7-256300 (1995-10-01), None
patent: 8-225621 (1996-09-01), None
patent: 08-283349 (1996-10-01), None
patent: 08283349 (1996-10-01), None
patent: 9-78487 (1997-03-01), None
patent: 9-78488 (1997-03-01), None
patent: 10-500 (1998-01-01), None
patent: 10-137800 (1998-05-01), None
patent: 10-244300 (1998-09-01), None
patent: 2001-140191 (2001-05-01), None
patent: 2001179300 (2001-07-01), None

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