Reduced byproduct high solids polyamine-epihalohydrin...

Details Reduced byproduct high solids polyamine-epihalohydrin... Reduced byproduct high solids polyamine-epihalohydrin...

2007-12-04

2007-12-04

Beisner, William H. (Department: 1744)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S164600, C435S262000, C435S262500, C435S278000, C524S017000

Reexamination Certificate

active

10013049

ABSTRACT:
A process for rendering a polyamine-epihalohydrin resin storage stable, is described. The process entails treating a polyamine-epihalohydrin resin composition, where the resin is formed in a reaction having a molar ratio of epihalohydrin to secondary amine group of less than about 0.5 and where the composition has a solids content of at least 15 wt % and includes CPD-forming species, with at least one enzymatic agent under conditions to inhibit, reduce or remove the CPD-forming species to obtain a gelation storage stable reduced CPD-forming resin so that the composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 24 hours at 50° C. and a pH of about 1.0 releases less than about 100 ppm dry basis of CPD.

REFERENCES:
patent: 2595935 (1952-05-01), Daniel et al.
patent: 2926154 (1960-02-01), Keim
patent: 3197427 (1965-07-01), Schmalz
patent: 3248353 (1966-04-01), Coscia
patent: 3311594 (1967-03-01), Earle
patent: 3332901 (1967-07-01), Keim
patent: 3655506 (1972-04-01), Baggett
patent: 3891589 (1975-06-01), Ray-Chaudhuri
patent: 4240935 (1980-12-01), Dumas
patent: 4388439 (1983-06-01), Maslanka
patent: 4452894 (1984-06-01), Olsen et al.
patent: 4477570 (1984-10-01), Colaruotolo et al.
patent: 4487884 (1984-12-01), Maslanka
patent: 4493895 (1985-01-01), Colaruotolo et al.
patent: 4501640 (1985-02-01), Soerens
patent: 4501862 (1985-02-01), Keim
patent: 4528316 (1985-07-01), Soerens
patent: 4684439 (1987-08-01), Soerens
patent: 4788243 (1988-11-01), Soerens
patent: 4853431 (1989-08-01), Miller
patent: 4857586 (1989-08-01), Bachem et al.
patent: 4975499 (1990-12-01), Bachem et al.
patent: 5017642 (1991-05-01), Hasegawa et al.
patent: 5019606 (1991-05-01), Marten et al.
patent: 5056855 (1991-10-01), Moravsky
patent: 5171795 (1992-12-01), Miller et al.
patent: 5187219 (1993-02-01), Furman, Jr.
patent: 5189142 (1993-02-01), Devore et al.
patent: 5239047 (1993-08-01), Devore et al.
patent: 5246544 (1993-09-01), Hollenberg et al.
patent: 5256727 (1993-10-01), Dulany et al.
patent: 5330619 (1994-07-01), Johnson et al.
patent: 5338807 (1994-08-01), Espy et al.
patent: 5364927 (1994-11-01), Devore et al.
patent: 5374334 (1994-12-01), Sommese et al.
patent: 5470742 (1995-11-01), Bull et al.
patent: 5516885 (1996-05-01), Gorzynski et al.
patent: H1613 (1996-11-01), Espy
patent: 5786429 (1998-07-01), Allen
patent: 5843763 (1998-12-01), Bull et al.
patent: 5871616 (1999-02-01), Bull et al.
patent: 5902862 (1999-05-01), Allen
patent: 5972691 (1999-10-01), Bates et al.
patent: 5994449 (1999-11-01), Maslanka
patent: 6056855 (2000-05-01), Amey
patent: 6222006 (2001-04-01), Kokko et al.
patent: 6554961 (2003-04-01), Riehle et al.
patent: 2003/0205345 (2003-11-01), Riehle et al.
patent: 5453400 (2001-01-01), None
patent: 979579 (1975-12-01), None
patent: 2375694 (2000-12-01), None
patent: 0 349 935 (1993-06-01), None
patent: 865 727 (1961-04-01), None
patent: 92/22601 (1992-12-01), None
patent: 93/21384 (1993-10-01), None
patent: 96/40967 (1996-12-01), None
patent: 99/09252 (1999-02-01), None
patent: 99/33901 (1999-07-01), None
patent: WO-0077076 (2000-12-01), None
U.S. Appl. No. 09/001,787, filed Dec. 31, 1997, Riehle.
U.S. Appl. No. 09/224,107, filed Dec. 22, 1998, Riehle.
U.S. Appl. No. 09/330,200, filed Jun. 11, 1999, LaPre.
U.S. Appl. No. 09/363,224, filed Jul. 30, 1999, Allen.
U.S. Appl. No. 09/592,681, filed Jun. 12, 2000, Riehle.
U.S. Appl. No. 09/629,629, filed Jul. 31, 2000, Busink.
U.S. Appl. No. 10/006,027, filed Dec. 7, 2001, Riehle.
C. E. Castro et al., “Biological Cleavage of Carbon-Halogen Bonds Metabolism of 3- Bromopropanol byPseudomassp.”, Biochimica et Biophysica Acta, 100, 384-392, 1965.
Siezen, R. J., et al., Protein Eng., 1991, vol. 4, No. 7, 719-37.
Dunlop-Jones, Paper Chemistry, ISBN 0-216-929090-1, Publisher: Chapman Hall, N.Y., Chapter 6, 1991, pp. 78-96.
P. J. Flory, Principles of Polymer Chemistry, pp. 91-95, Cornell University Press, Ithaca, NY (1953).
Jerry March, Advanced Organic Chemistry, pp. 218-236, Third Ed., John Wiley & Sons, New York (1985).

Affiliated with

Also associated with

Rating

Reduced byproduct high solids polyamine-epihalohydrin... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reduced byproduct high solids polyamine-epihalohydrin..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced byproduct high solids polyamine-epihalohydrin... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3862079