Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
Reexamination Certificate
2006-07-11
2006-07-11
Bhat, N. (Department: 1764)
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Treatment with particular chemical
C162S096000, C162S099000, C162S176000, C426S578000, C426S661000, C426S506000, C426S518000, C426S519000, C428S034800
Reexamination Certificate
active
07074300
ABSTRACT:
The present invention comprises an improved method for refining cellulose that produces a highly refined cellulosic material. The method comprises soaking raw material in a mild NaOH using reduced temperatures and pressures, and refining the material with a plate refiner so that a waste water stream is reduced in volume and has a pH within a range of 8 to 9. The present invention also comprises a HRC gel having a lignin concentration of at least about one (1)% by weight, and a water retention capacity of about 25 to at least about 56 g H2O/g dry HRC.
REFERENCES:
patent: 2487114 (1949-11-01), Dreyfus
patent: 3539365 (1970-11-01), Durand et al.
patent: 3653925 (1972-04-01), Anker et al.
patent: 3660183 (1972-05-01), Knowles et al.
patent: 3664844 (1972-05-01), Miller et al.
patent: 4226982 (1980-10-01), Blount
patent: 4259147 (1981-03-01), Gordy
patent: 4294653 (1981-10-01), Lindahl et al.
patent: 4307121 (1981-12-01), Thompson
patent: 4341807 (1982-07-01), Turbak et al.
patent: 4374702 (1983-02-01), Turbak et al.
patent: 4378381 (1983-03-01), Turbak et al.
patent: 4413017 (1983-11-01), Loader
patent: 4452721 (1984-06-01), Turbak et al.
patent: 4483743 (1984-11-01), Turbak et al.
patent: 4486459 (1984-12-01), Thompson
patent: 4543370 (1985-09-01), Porter et al.
patent: 4649113 (1987-03-01), Gould
patent: 4652324 (1987-03-01), Yamashina et al.
patent: 4661359 (1987-04-01), Seaborne et al.
patent: 4774098 (1988-09-01), Gould et al.
patent: 4806203 (1989-02-01), Elton
patent: 4806475 (1989-02-01), Gould
patent: 4810534 (1989-03-01), Seaborne et al.
patent: 4915971 (1990-04-01), Fennema et al.
patent: 4957599 (1990-09-01), Chou et al.
patent: 4960763 (1990-10-01), Stephens et al.
patent: 4997488 (1991-03-01), Gould et al.
patent: 5017319 (1991-05-01), Shen
patent: 5023097 (1991-06-01), Tyson
patent: 5023103 (1991-06-01), Ramaswamy
patent: 5057334 (1991-10-01), Vail
patent: 5069919 (1991-12-01), Weibel
patent: 5089307 (1992-02-01), Ninomiya et al.
patent: 5123962 (1992-06-01), Komuro et al.
patent: 5126152 (1992-06-01), Feeney et al.
patent: 5147670 (1992-09-01), Cebula et al.
patent: 5385640 (1995-01-01), Weibel et al.
patent: 5393333 (1995-02-01), Trouve
patent: 5415804 (1995-05-01), Minami et al.
patent: 5487419 (1996-01-01), Weibel
patent: 5503996 (1996-04-01), Torget et al.
patent: 5529663 (1996-06-01), Springer
patent: 5626810 (1997-05-01), Zikeli et al.
patent: 5643359 (1997-07-01), Soroushian et al.
patent: 5766662 (1998-06-01), Inglett
patent: 5769934 (1998-06-01), Ha et al.
patent: 5817381 (1998-10-01), Chen et al.
patent: 5964983 (1999-10-01), Dinand et al.
patent: 6083582 (2000-07-01), Chen et al.
patent: 6183596 (2001-02-01), Matsuda et al.
patent: 6231913 (2001-05-01), Schwimmer et al.
patent: 6251458 (2001-06-01), Weibel
patent: 6273994 (2001-08-01), Creber et al.
patent: 6506435 (2003-01-01), Lundberg et al.
patent: 2002/0060382 (2002-05-01), Luo et al.
patent: 2003/0144245 (2003-07-01), Addis et al.
patent: 2004/0086626 (2004-05-01), Lundberg et al.
patent: 9005762 (1992-06-01), None
patent: 0 102 829 (1987-11-01), None
patent: 00337653 (1989-10-01), None
patent: 09071677 (1997-03-01), None
patent: 09195194 (1997-07-01), None
patent: WO 00/05310 (2000-02-01), None
patent: WO 01/32978 (2001-05-01), None
Ang, “Water retention capacity and viscosity effect of powdered cellulose,”Journal of Food Science, 1991; 56(6):1682-1684.
Ang et al., “Multiple functions of powdered cellulose as a food ingredient,”Cereal Foods World, 1991; 36(7):558-564.
“Commercially-viable edible coatings face several challenges”,Emerging Food R&D Report, Jun. 1, 1994.
“Consider edible collagen film for packaging”,Emerging Food R&D Report, Oct. 1, 1995.
Debeaufort et al., “Effect of surfactants and drying rate on barrier properties of emulsified edible films”,International Journal of Food Science and Technology, 1995; 30:183-190.
“Executives . . . FYI”,Emerging Food R&D Report, Sep. 1, 1995; 1 pg.
Falk et al., “On the Relation Between Turgor Pressure and Tissue Rigidity”,Physiologia Plantarum, 1958; 11:802-837.
Fast, “Chapter 2: Manufacturing Technology of Ready-to-Eat Cereals,”Breakfast Cereals, and how they are made, Fast et al., eds., American Association of Cereal Chemists, Inc., St. Paul, MN, 1990; 15-42.
Forcinio, “Extending Freshness and Shelf Life”,Food Manufacturing&Packaging, 1994; 163(12):87-90.
Frey-Wyssling, “Deformation of Plant Wall Cells”,Deformation and Flow in Biological Systems, Chap. III., Edited by A. Frey-Wyssling, North Holland Publishing Company, publishers, 1952; 194-254.
Gennadios et al., “Edible Films and Coatings from Wheat and Corn Proteins,”Food Technology, 1990; 63-69.
Goddard, “Now you can have your pack and eat it”,Packaging Week, 1994; 10(22):28-29.
Gould, “Alkaline Peroxide Delignification of Agricultural Residues to Enhance Enzymatic Saccharification,”Biotechnology and Bioengineering, vol. XXVI; 46-52.
Hatakeyama, “Structure and properties of the amorphous region of cellulose,”Cellulose: structural and functional aspects, New York, 1989; 45-52.
Hoseney, “Principles of cereal science and technology”,American Association of Cereal Chemists, publisher, 1986; 300-301.
Kester et al., “Edible Films and Coatings: A Review”,Food Technology, 1986; 47-59.
Krässig, “Cellulose: Structure, Accessibility and Reactivity,”Polymer Monographs, 1992; Table of Contents.
Krochta et al., “Edible Coatings and Films to Improve Food Quality”,Food Trade Review, 1994; 64(11):753-754.
Long, “Ingredients and Coatings”,Frozen and Chilled Foods, 1994; 48(2):14.
Meshitsuka, “Chemical Structures of Cellulose, Hemicelluloses, and Lignin,”Chemical modification of lignocellulosic materials, 1996; 11-33.
Mohsenin,Physical Properties of Plant and Animal Materials, Chap. 2: “Structure and Chemical Composition”, and Chap. 4: “Some Basic Concepts of Rheology”, Gordon and Breach, publishers, 1986; 22-54:128-223.
Morton-Jones, “Polymer Processing”, Chapman and Hall, publishers, 1989; Table of Contents.
Park et al., “Permeability and Mechanical Properties of Cellulose-Based Edible Films”,Journal of Food Science, 1993; 58(6):1361-1364.
Park et al., “Fatty Acid Concentration Effect on Tensile Strength, Elongation, and Water Vapor Permeability of Laminated Edible Films”,Journal of Food Science, 1994; 59(4):916-919.
Parrot et al., “Functional Properties of Various Fibers: Physical Properties”,Journal of Food Science, 1978; 43:759-766.
“Precut Produce Sales to Soar Edible Coating Has Wide Application”,Food Institute Report, American Institute of Food Distribution, Inc., Nov. 20, 1995:3.
Pryor, “The Rheology of Muscle”,Deformation and Flow in Biological Systems, Chap. II, Edited by A. Frey-Wyssling, North Holland Publishing Company, publishers, 1952:157-193.
Rice, “Consuming Demands: Gas packaging, source-reduction and recloseable stand-up pouches help meet new consumer needs”,Food Processing, 1996; 71-72.
Ruan et al., “Structure-function relationships of highly refined cellulose made from agricultural fibrous residues,”Applied Engineering in Agriculture, 1996; 12(4):465-468.
Turbak et al., “Microfibrillated Cellulose, a New Cellulose Product: Properties, Uses, and Commercial Potential”,Journal of Applied Polymer Science: Applied Polymer Symposium, 1983; 37:815-827.
Turbak, “Microfibrillated Cellulose—A New Composition of Commercial Significance,” 1984 Nonwovens Symposium, Myrtle Beach, SC, Apr. 16-19, 1984,TAPPI Press, Atlanta, GA 1984;115-124.
Addis Paul Bradley
Chen Ling
Edgar Johnson Jack
Gu Lin
Lundberg Brock
Agricultural Utilization Research Institute
Bhat N.
Mueting Raasch & Gebhardt, P.A.
Regents of the University of Minnesota
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