High molecular weight cationic polymers obtained by...

Details High molecular weight cationic polymers obtained by... High molecular weight cationic polymers obtained by...

2007-05-24

2008-09-16

Pezzuto, Helen L. (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C524S555000, C524S567000, C525S331900, C526S295000, C526S336000

Reexamination Certificate

active

07425597

ABSTRACT:
The molecular weight of cationic polymers, such as diallyldialkyl ammonium chloride, can be increased by controlled addition of a water-soluble radical initiator at an elevated reaction temperature with agitation to prepare high molecular weight, crosslinked, water-soluble cationic polymers.

REFERENCES:
patent: 3168500 (1965-02-01), Suen et al.
patent: 3544318 (1970-12-01), Boothe et al.
patent: 3968037 (1976-07-01), Morgan et al.
patent: 4222921 (1980-09-01), Van Eenam
patent: 4439580 (1984-03-01), Schaper
patent: 4742134 (1988-05-01), Butler et al.
patent: 5248744 (1993-09-01), Cramm et al.
patent: 5422408 (1995-06-01), Cramm et al.
patent: 5653886 (1997-08-01), Kerr et al.
patent: 5879564 (1999-03-01), Farinato
patent: 5973108 (1999-10-01), Eyrisch et al.
patent: 5989392 (1999-11-01), Tang et al.
patent: 6117938 (2000-09-01), Farinato et al.
patent: 6323306 (2001-11-01), Song et al.
patent: 158783 (1983-02-01), None
patent: 0208945 (1987-01-01), None
patent: 0264710 (1988-04-01), None
patent: 0308109 (1989-03-01), None
patent: 0600592 (1994-06-01), None
patent: 0878487 (1998-11-01), None
patent: 2046279 (1980-11-01), None
W. Jaeger et al., J. Macromol. Sci.-Chem., A21(5), pp. 593-614, (1984).
L. Ghimici et al., “Interaction of the Low-Molecular Weight Salts with Cationic Polyelectrolytes”, Journal of Polymer Science: Part B, vol. 35, pp. 2571-2581, (1997).
L. Gu et al., Journal of Applied Polymer Science, vol. 74, pp. 1412-1416, (1999).
Ma and Zhu, Colloid Polym. Sci., 277, pp. 115-122, (1999).

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