Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2007-07-03
2007-07-03
Pezzuto, Helen L. (Department: 1713)
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
11190573
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., “Interactions 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).
Ciba Specialty Chemicals Water Treatments Ltd.
Loggins Shiela A.
Pezzuto Helen L.
LandOfFree
High molecular weight cationic polymers obtained by... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High molecular weight cationic polymers obtained by..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High molecular weight cationic polymers obtained by... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3742344