Paper making and fiber liberation – Processes and products – Non-fiber additive
Reexamination Certificate
2005-09-06
2005-09-06
Chin, Peter (Department: 1731)
Paper making and fiber liberation
Processes and products
Non-fiber additive
C162S164300, C162S164500, C162S164600, C162S168200, C162S168300, C162S183000
Reexamination Certificate
active
06939443
ABSTRACT:
The invention relates to a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000, and a cationic strength component. The invention also relates to a paper product made with such a system, and method for imparting wet strength to a paper product with the functional promoter.
REFERENCES:
patent: 3049469 (1962-08-01), Davison
patent: 3816556 (1974-06-01), Coscia et al.
patent: 4510019 (1985-04-01), Bartelloni
patent: 4517285 (1985-05-01), Woodward et al.
patent: 4643801 (1987-02-01), Johnson
patent: 5155156 (1992-10-01), Scanley
patent: 5316623 (1994-05-01), Espy
patent: 5318669 (1994-06-01), Dasgupta
patent: 5502091 (1996-03-01), Dasgupta
patent: 5543446 (1996-08-01), Rodriguez
patent: 5633300 (1997-05-01), Dasgupta
patent: 5700352 (1997-12-01), Vinson et al.
patent: 5750489 (1998-05-01), Garcia et al.
patent: 5798023 (1998-08-01), Pruszynski et al.
patent: 5824190 (1998-10-01), Guerro et al.
patent: 5876563 (1999-03-01), Greenwood
patent: 6228217 (2001-05-01), Dickerson et al.
patent: 6270627 (2001-08-01), Keiser et al.
patent: 6331229 (2001-12-01), Wong Shing et al.
patent: 6419789 (2002-07-01), Yeh et al.
patent: 6706146 (2004-03-01), Matsumoto
patent: 0790351 (1997-08-01), None
patent: 0835957 (1998-04-01), None
patent: 1180559 (2002-02-01), None
patent: 0177437 (2001-10-01), None
Zhongguo Zaozhi, (month unavailable) 1997, 16(1), pp. 34-38, “Study of the Co-use Technology of Polyamide Polyamide Epichlorhydrin Resin with Anionic Polymer to Kraft Reed Pulp”. Zhan Huaiyu, Wu Jiaoping and Yue Baozhen (see translation attached).
Wochenbl. Ppierfabr, (month unavailable) 1988, 116 (16), kpages 649-660, J. Weigl, M. Cordes-Tolle, “Possible improvement of dry and wet strength charateristic withing the neutral Ph range”.
Brevard, Sr. William
Dauplaise David
Lipp David Wesley
Lostocco Michael
Proverb Robert
Akrli Godfried R.
Chin Peter
Lanxess Corporation
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