Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Particular raw cellulosic materials
Reexamination Certificate
2004-11-12
2009-11-24
Saucier, Sandra (Department: 1651)
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Particular raw cellulosic materials
C435S278000
Reexamination Certificate
active
07622019
ABSTRACT:
Disclosed is a method of manufacturing pulp and paper using Rhodophyta, including immersing Rhodophyta in an extraction solvent able to dissolve agar gel for a predetermined time period to dissolve the agar gel in the extraction solvent, reacting the dissolved agar gel with a reaction solvent to be converted into a fiber, curing the fiber using a curing agent, and pulping the cured fiber. The method of the current invention is advantageous because of lower manufacturing costs, due to eliminating the need to purchase wood. Further, the use of chemicals for lignin removal and bleaching drastically decreases, thus preventing environmental contamination. Furthermore, since a final product does not contain harmful chemicals, humans and the environment are not negatively affected.
REFERENCES:
patent: 5472569 (1995-12-01), Nicolucci et al.
patent: 5496936 (1996-03-01), Thami et al.
patent: 5500086 (1996-03-01), Sakai et al.
patent: 54-038901 (1979-03-01), None
patent: 61-063800 (1986-04-01), None
patent: 63-243399 (1988-10-01), None
patent: 63-243400 (1988-10-01), None
patent: 03-199486 (1991-08-01), None
patent: 3-199486 (1991-08-01), None
patent: 04-202892 (1992-07-01), None
patent: 4-202892 (1992-07-01), None
patent: 7-304881 (1995-11-01), None
patent: 07-305294 (1995-11-01), None
patent: 2000-245403 (2000-09-01), None
patent: 2002-125485 (2002-05-01), None
International Search Report of corresponding PCT International Application No. PCT/KR2004/002939; dated Feb. 21, 2005 (2 pages).
Park Jun-Hyuk
You Hack-Churl
Hanley Susan
Locke Lord Bissell & Liddell LLP
Saucier Sandra
You Hack-Churl
LandOfFree
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