Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Particular raw cellulosic materials
Reexamination Certificate
2007-03-06
2007-03-06
Hug, Eric (Department: 1731)
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Particular raw cellulosic materials
C162S072000, C162S086000, C162S090000
Reexamination Certificate
active
10312440
ABSTRACT:
Disclosed is a method for preparing paper pulp from cornstalks comprising the steps of cooking, washing, screening, thickening, bleaching, beating and drying performed under moderate conditions which have little noxious effects on the environment. By using cornstalks as raw materials for paper pulp, it becomes possible to replace import of wood raw materials, to save foreign currency, to increase rural income, and to make high quality paper.
REFERENCES:
patent: 1845487 (1932-02-01), Darling et al.
patent: 1846511 (1932-02-01), Darling
patent: 1846672 (1932-02-01), Bradley et al.
patent: 2068151 (1937-01-01), Remler
patent: 2625474 (1953-01-01), Atkinson, Jr. et al.
patent: 2924547 (1960-02-01), Knapp et al.
patent: 3013935 (1961-12-01), Henderson et al.
patent: 3666620 (1972-05-01), Wright
patent: 4012280 (1977-03-01), Holton
patent: 4239906 (1980-12-01), Antrim et al.
patent: 4260452 (1981-04-01), Kruger et al.
patent: 5554330 (1996-09-01), Flannery et al.
patent: 5620565 (1997-04-01), Lazorisak et al.
patent: 5944953 (1999-08-01), Lavoie et al.
patent: 6302997 (2001-10-01), Hurter et al.
patent: 6348127 (2002-02-01), Gallagher et al.
patent: 2171681 (1977-09-01), None
patent: 1062939 (1992-07-01), None
patent: 1071361 (1993-04-01), None
patent: 1131713 (1996-09-01), None
patent: 1131713 (1996-09-01), None
patent: 1293284 (2001-05-01), None
patent: 00940984.8 (2006-08-01), None
patent: 04-057982 (1992-02-01), None
patent: 04-146282 (1992-05-01), None
patent: 06146194 (1994-05-01), None
patent: 06146194 (1994-05-01), None
patent: 09-059886 (1997-03-01), None
patent: 04057982 (1997-09-01), None
patent: 09241984 (1997-09-01), None
patent: 10-511147 (1998-10-01), None
patent: 10-325090 (1998-12-01), None
patent: 10-331084 (1998-12-01), None
patent: 2002506300 (2002-02-01), None
patent: 00/00681 (2002-01-01), None
patent: WO 96/35013 (1996-11-01), None
patent: WO 99/41448 (1999-08-01), None
patent: WO02/00945 (2002-01-01), None
Saturated Steam, Jan. 31, 2006, www.spiraxsarco.com/EscSS—Properties.aspx?country—id=HQ&lang—id=ENG.
Smook, G.A., Handbook for Pulp & Paper Technologists, TAPPI, 1982, pp. 190-191 & 204-205.
Partial Korean Patent Publication, Sep. 20, 1965, Lim.
Lyle J. Gordon, Section 3-3 entitled Sulfite Pulping, Handbook of Pulp and Paper Technology, 2nd Edition, pp. 159-165.
Wang, Ping, et al, “Preliminary experiment of Pulping and Papermaking by Using Flesh Texture-Removed Cornstalk”, Liaoning Papermaking, No. 2, 1997.
Pan, Hansong, “New Progress of Research and Application of Polyacrylamide”, Guangzhou Chemical Industry, vol. 23, No. 3, 1995.
Ye, Xiaochun, “Cationic Starch and its Use in Papermaking Industry”, North Papermaking, No. 3, 1994.
Notification of First Office Action from Chinese Patetn Office, dated Oct. 29, 2004.
Kim Chul Kap
Ryu Hai-il
Won Jong-Myoung
CP & P Co., Ltd.
Godfrey & Kahn S.C.
Hug Eric
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