Wet strength and softness enhancement of paper products

Details Wet strength and softness enhancement of paper products Wet strength and softness enhancement of paper products

2006-05-09

2006-05-09

Bissett, Melanie (Department: 1711)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S168200, C524S035000

Reexamination Certificate

active

07041197

ABSTRACT:
A method for making paper to enhance its wet strength includes adding separately to a cellulosic paper pulp furnish the following additives to form a treated pulp: a cationic wet strength resin whose cationic sites bond to anionic sites of cellulose fibers contained in the paper pulp furnish, and a hydrophobically modified anionic polyelectrolyte whose anionic sites bond with cationic sites of the cationic wet strength resin.

REFERENCES:
patent: 3058873 (1962-10-01), Keim et al.
patent: 3138473 (1964-06-01), Floyd et al.
patent: 3248280 (1966-04-01), Hyland
patent: 3434984 (1969-03-01), Hyland
patent: 3448005 (1969-06-01), Allison et al.
patent: 3462383 (1969-08-01), Longoria, III et al.
patent: 3483077 (1969-12-01), Aldrich
patent: 3632559 (1972-01-01), Matter et al.
patent: 3635842 (1972-01-01), Longoria, III et al.
patent: 3692092 (1972-09-01), Longoria
patent: 3755220 (1973-08-01), Freimark et al.
patent: 3980663 (1976-09-01), Gross
patent: 4066494 (1978-01-01), Scharf et al.
patent: 4200559 (1980-04-01), Peterlein et al.
patent: 4517285 (1985-05-01), Woodward et al.
patent: 4596863 (1986-06-01), Sackmann et al.
patent: 4722964 (1988-02-01), Chan et al.
patent: 5298568 (1994-03-01), Suzuki
patent: 5491190 (1996-02-01), Sandvick et al.
patent: 5969011 (1999-10-01), Frölich et al.
patent: 6222006 (2001-04-01), Kokko et al.
patent: 6488812 (2002-12-01), Shannon et al.
patent: 2002/0096282 (2002-07-01), Leibler et al.
patent: 2003/0024667 (2003-02-01), Wallenius et al.
patent: 2003/0127209 (2003-07-01), Sandberg et al.
patent: 2296826 (2000-07-01), None
patent: 2296892 (2000-07-01), None
patent: 2296894 (2000-07-01), None
patent: 0 471 137 (1992-02-01), None
patent: 1 258 560 (2002-11-01), None
patent: WO 93/21382 (1993-10-01), None
patent: WO 98/39376 (1998-09-01), None
patent: WO 00/43423 (2000-07-01), None
patent: WO 00/43428 (2000-07-01), None
patent: WO 00/43429 (2000-07-01), None
patent: WO 00/43440 (2000-07-01), None
patent: WO 01/40578 (2001-07-01), None
patent: WO 01/77437 (2001-10-01), None
Epo Communication, App. No. 04101554.6-2124-International Search Report, PCT/US00/32820, Feb. 14, 2001.

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