Temporary wet strength paper

Details Temporary wet strength paper Temporary wet strength paper

1996-03-28

1997-11-25

Czaja, Donald E.

Paper making and fiber liberation

Processes and products

Non-fiber additive

162183, 1621647, 162170, D21H 1724, D21H 1731, D21H 1745

Patent

active

056907907

ABSTRACT:
The present invention relates to paper products having temporary wet strength. The paper products contain cellulosic fibers that are treated with a polyaldehyde polymer having free aldehyde groups and a water soluble polyhydroxy polymer. The initial wet strength obtained with the combined use of these materials is significantly greater than that obtained by use of either the polyaldehyde or pelyhydroxy polymer alone. At the same time, the wet strength decays at a rate that is rapid enough to enable the paper product to be flushed under conditions of normal use.

REFERENCES:
patent: 2685508 (1954-08-01), Spear
patent: 3084057 (1963-04-01), Jordan
patent: 3138473 (1964-06-01), Floyd et al.
patent: 3205125 (1965-09-01), Opie et al.
patent: 3225028 (1965-12-01), Nordgren
patent: 3236832 (1966-02-01), Opie et al.
patent: 3239500 (1966-03-01), Keen et al.
patent: 3297604 (1967-01-01), Germino
patent: 3410828 (1968-11-01), Kekish
patent: 3683917 (1972-08-01), Comeford
patent: 3691153 (1972-09-01), Vemuri
patent: 4129722 (1978-12-01), Iovine et al.
patent: 4269975 (1981-05-01), Rutenberg et al.
patent: 4557801 (1985-12-01), Avis
patent: 4605702 (1986-08-01), Guerro et al.
patent: 4675394 (1987-06-01), Solarek et al.
patent: 4683298 (1987-07-01), Yalpani
patent: 4959466 (1990-09-01), White
patent: 4981557 (1991-01-01), Bjorkquist
patent: 5338406 (1994-08-01), Smith
patent: 5338407 (1994-08-01), Dasgupta
patent: 5397435 (1995-03-01), Ostendorf et al.
patent: 5405501 (1995-04-01), Phan et al.
Borchert et al., "Cationic Dispersions of Dialdehyde Starch. Theory and Preparation", Tappi, vol. 47, No. 9, pp. 525-528, Sep. 1964.
Haug, "Guar Mannogalactan Studies", Tappi, vol. 36, No. 1, pp. 53-64, Jan. 1953.
Swanson, "Conversion of Mannogalactan Mucilages in Aqueous Borax Solutions for Use as Tubsizing and Coating Adhesives", TAPPI, vol. 33, No. 2, pp. 77-81, (1950).
Haug, "Purification and Characterization of Purified Fraction", TAPPI, vol. 36, No. 1, pp. 47-51 (1953).
Haug, "Guar Mannogalactan Studies. II. Effect of Certain Variables, Including Borax, on the Rate of Oxidation of the Purified Mucilage", TAPPI, vol. 36, No. , pp. 53-58 (1953).
Opie, "Dialdehyde Galactomannan Gums as Wet End Wet and Dry Strength Additives", TAPPI, vol. 47, No. 8, pp. 504-507 (1964).
Yiannos, "Gums--Vegetable", 8-7, Handbook of Pulp and Paper Technology, (2nd Ed., Britt, Van Nostrand Reinhold Co.), pp. 650-654, (1964).
Browning, "Wood Chemistry", 1-1, Handbook of Pulp and Paper Technology, (2nd Ed., Britt, Van Nostrand Reinhold Co.), pp. 3-12, (1964).
Hui et al., "Some Properties of Galactomannans", TAPPI, vol. 47, No. 1, pp. 39-42, (1964).
U.S. application No. 08/623,309, Smith et al., filed Mar. 28, 1996.
U.S. application No. 08/623,293, Smith, filed Mar. 28, 1996.

Affiliated with

Also associated with

Rating

Temporary wet strength paper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temporary wet strength paper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temporary wet strength paper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2103553