Apparatus for making carboxylated pulp fibers

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With chemical or physical modification of liberated fiber

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C162S052000, C162S057000, C162S241000, C162S246000, C162S066000, C162S157600, C162S181200, C162S067000, C008S115510, C008S116100

Reexamination Certificate

active

07001483

ABSTRACT:
An apparatus for carboxylating wood pulp which utilizes the wood pulp bleach plant and the method of carboxylating the pulp which takes place in the bleach plant.

REFERENCES:
patent: 3575177 (1971-04-01), Briskin et al.
patent: 4100341 (1978-07-01), Brasey et al.
patent: 4401810 (1983-08-01), Tang et al.
patent: 4480089 (1984-10-01), Chen et al.
patent: 4505775 (1985-03-01), Harding et al.
patent: 4679278 (1987-07-01), Caumont
patent: 5389201 (1995-02-01), Tsai
patent: 5667637 (1997-09-01), Jewell et al.
patent: 5755828 (1998-05-01), Westland
patent: 5824462 (1998-10-01), Ashida et al.
patent: 6031101 (2000-02-01), Devine et al.
patent: 6117883 (2000-09-01), Merritt et al.
patent: 6127573 (2000-10-01), Li et al.
patent: 6228126 (2001-05-01), Cimecioglu et al.
patent: 6340409 (2002-01-01), Shackford
patent: 6379494 (2002-04-01), Jewell et al.
patent: 6409881 (2002-06-01), Jaschinski
patent: 6447644 (2002-09-01), Seltzer et al.
patent: 2002/0072600 (2002-06-01), Bragd et al.
patent: 0 574 666 (1993-04-01), None
patent: 1 077 221 (2001-02-01), None
patent: 1 077 285 (2001-02-01), None
patent: 1 077 286 (2001-02-01), None
patent: 2674528 (1992-10-01), None
patent: 2001/49591 (2001-02-01), None
patent: WO 95/07303 (1995-03-01), None
patent: WO 96/36621 (1996-11-01), None
patent: WO 96/38484 (1996-12-01), None
patent: WO 98/27117 (1998-06-01), None
patent: WO 99/23117 (1999-05-01), None
patent: WO 99/57158 (1999-11-01), None
patent: WO 00/50388 (2000-08-01), None
patent: WO 00/50462 (2000-08-01), None
patent: WO 00/50463 (2000-08-01), None
patent: WO 00/50621 (2000-08-01), None
patent: WO 00/56978 (2000-09-01), None
patent: WO 01/29309 (2001-04-01), None
patent: WO 01/23657 (2001-05-01), None
Andersson, R., J. Hoffman, N. Nahar and E. Scholander. An n.m.r. study of the products of oxidation of cellulose and (1→4)-β-D-xylan with sodium nitrite in orthophosphoric acid.Carbohydrate Research206: 340-346 (1990).
Anelli, P.L., S. Banfi, F. Montanari and S. Quichi. Oxidation of diols with alkali hypochlorites catalyzed by oxammonium salts under two-phase conditions.Journal of Organic Chemistry54: 2970-2972 (1989).
Barzyk, D., D.H. Page and A. Ragauskas. Acidic group topochemistry and fibre-to-fibre bond strength.Journal of Pulp and Paper Science23(2): J59-J61 (1997).
Barzyk, D., D. H. Page and A. Ragauskas. Carboxylic acid groups and fibre bonding. InThe Fundamentals of Papermaking Materials: Transactions of 11thFundamental Research Symposium, Cambridge, 2: 893-907 (Sep. 1997).
Besemer, A. C., A. E. J. de Nooy and H. van Bekkum. Methods for selective oxidation of cellulose: Preparation of 2,3-dicarboxycellulose and 6-carboxy-cellulose. InCellulose Derivatives, T. J. Heinze and W. G. Glasser eds., Ch. 5, pp 73-82 (1996).
Chang, P. S. and J. F. Robyt. Oxidation of Primary alcohol groups of naturally Occurring polysaccharides with 2,2,6,6-tetramethylpiperidine oxoammonium ion.Journal of Carbohydrate Chemistry15(7): 819-830 (1996).
Datye, K. V. and G. M. Nabar. Studies in the reaction of formaldehyde with unmodified, modified and dyed celluloses. Part III: The reaction of formaldehyde and oxycelluloses.Textile Research Journal33(7): 500-510 (1963).
Davis, N. J. and S. L. Flitsch. Selective oxidation of monosaccharide derivatives to uronic acids.Tetrahedron Letters34(7): 1181-1184 (1993).
Einhorn, J., C. Einhorn, F. Ratajczak and J-L. Pierre. efficient and highly selective oxidation of primary alcohols to aldehydes byN-chlorosuccinimide mediated by oxammonium salts.Journal of Organic Chemistry61: 7452-7454 (1996).
Ganiev, I.M., Q. K. Timerghazin, A. F. Kalizov, V. V. Shereshovets, I. M. Grigor'ev and G. A. Tolskitov. Complex of Chlorine dioxide with TEMPO and its conversion into oxoammonium salt.Journal of Physical Organic Chemistry14:38-42 (2001).
Isogai, A. Application of stable nitroxyl radical reagents to cellulose modification.Cellulose Communications5: 153-164 (1998).
Isogai, A. and Y. Kato. Preparation of polyuronic acid from cellulose by TEMPO-mediated oxidation.Cellulose5: 153-164 (1998).
Kitaoka, T., A. Isogai and F. Onabe. Surface modification of pulp fibers by TEMPO-mediated oxidation.Sen'iGakukaiPreprint 1998.
Kitaoka, T., A. Isogai and F. Onabe. Chemical modification of pulp fibers by TEMPO-mediated oxidation.Nordic Pulp and Paper Research Journal14 (4): 279-284 (1999).
luner, P., K. P. Vemuri and B. Leopold. the effect of chemical modification on the Mechanical properties of paper. II. Wet strength of oxidized springwood and summerwood southern pine kraft fibers.Tappi50(3): 1127-120 (1967).
Luner, P., K. P. Vemuri and F. Womeldorff. The effect of chemical modification on the mechanical properties of paper. III. Dry strength of oxidized springwood and summerwood southern pine kraft fibers.Tappi50(5): 227-230 (1967).
de Nooy, A. E. J., A. C. Besemer and H. van Bekkum. Highly selective TEMPO-mediated oxidation of pro,ary alcohol groups in polysaccharides.Receuil des Traveau Chimiques des Pays-Bas113(3): 165-166 (1994).
de Nooy, A. E. J., A. C. Besemer and H. van Bekkum. Highly selective nitroxyl radical-mediated oxidation of primary alcohol groups in water soluble glucans.Carbohydrate Research269:89-98 (1995).
de Nooy, A. E. K., A. C. Besemer and H. van Bekkum. On the use of stable organic nitroxyl radicals for the oxidation of primary and secondary alcohols.Synthesis: Journal of Synthetic Organic ChemistryOct. 1996 pp 1163-1174.
Rapson WH, “The General Principles of Pulp Bleaching,” The Bleachign of Pulp, 1963, CH. 2, pp. 8-9.
Shenai, V. A. and A. S. Narkhede. Hypochlorite oxidation of cellulose in the presence of cobalt sulfide.Textile Dyer and Printer20: 17-22 (19870.
Shet, R. T. and A. M. Yabani. Crease-recovery and tensile-strength properties of unmodified and modified cotton cellulose treated with cross-linking agents.Textile research Journal51(11): 740-744 (1981).
Young, R. A. Bonding of Oxidized cellulose fibers and interaction with wet strength resins.Wood and Fiber10(2): 112-119 (1978).
Zhao, M., J. Li, E. Mano, Z. Song, D. M. Tschaen, E. J. J. Grabowski and P. J. Reider. Oxidation of primary alcohols to carboxylic acids with sodium chlorite catalyzed by TEMPO and bleach.Journal of Organic Chemistry64: 2564-2566 (1999).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus for making carboxylated pulp fibers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for making carboxylated pulp fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for making carboxylated pulp fibers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3691626

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.