Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate
2006-06-01
2009-02-24
Halpern, Mark (Department: 1791)
Paper making and fiber liberation
Processes and products
Non-fiber additive
C162S175000, C162S181600, C162S183000
Reexamination Certificate
active
07494565
ABSTRACT:
The invention discloses a paper or paperboard produced from a slurry comprising cellulose fibers and an effective amount of SMS. In addition, a method for increasing retention and dewatering during the papermaking process is also disclosed. The method involves the addition of an effective amount of SMS to said papermaking process. The invention also discloses a method for increasing retention and drainage in a papermaking process comprising the steps of: adding both an effective amount of starch and an effective amount of SMS to a slurry of said papermaking process, wherein said starch is selected from the group consisting of: tapioca starch; potato starch; corn starch; waxy maize starch; rice starch; and wheat starch. Moreover, the invention comprises a method for increasing retention and drainage in a papermaking process comprising the steps of: adding both an effective amount of modified starch and an effective amount of SMS to a slurry of said papermaking process.
REFERENCES:
patent: 4193775 (1980-03-01), Wang
patent: 4610801 (1986-09-01), Matthews et al.
patent: 4750974 (1988-06-01), Johnson
patent: 4753710 (1988-06-01), Langley et al.
patent: 5015334 (1991-05-01), Derrick
patent: 5071512 (1991-12-01), Bixler et al.
patent: 5178730 (1993-01-01), Bixler et al.
patent: 5194120 (1993-03-01), Peats et al.
patent: 5277764 (1994-01-01), Johnasson et al.
patent: 5571379 (1996-11-01), Derrick
patent: 5989714 (1999-11-01), Drummond
patent: 6183650 (2001-02-01), Drummond
patent: 6270627 (2001-08-01), Keiser et al.
patent: 6310104 (2001-10-01), Keiser et al.
patent: 6372089 (2002-04-01), Keiser et al.
patent: 6712934 (2004-03-01), Ahlgren et al.
patent: 2005/0161183 (2005-07-01), Corvarrubias
Sherman Laura M.
Shing Jane B. Wong
Smith James G.
DiMattia Peter A.
Halpern Mark
Martin Michael B.
Nalco Company
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