Packaging material process for producing same and use thereof

Details Packaging material process for producing same and use thereof Packaging material process for producing same and use thereof

1994-09-30

1997-02-18

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

428 343, 428913, 2065241, 2065244, 206828, 229 8701, 229 8708, 229 8714, 229 35R, 426106, 426129, 426130, B65D 3000

Patent

active

056039972

ABSTRACT:
The present invention relates to a packaging material for reduced transfer from a package to its content of substances causing undesirable taste and/or hazardous substances, this reduction being due to the packaging material containing a hydrophobic zeolite. More specifically, the invention concerns paperboard, in which case the substances causing undesirable taste mainly are naturally occurring extractive substances, oxidation products thereof and, to a lesser extent, the paper chemicals present. Further, the presence of a hydrophobic zeolite in the paperboard enhances the water-repellent (hydrophobic) capacity. Also, the present invention concerns a method for production of a packaging material of paper, board or paperboard by forming and dewatering a suspension of lignocellulose-containing fibres, where the dewatering takes place in the presence of a hydrophobic zeolite. Moreover, the present invention relates to the use of a hydrophobic zeolite for production of a packaging material, as well as the use of the thus-produced packaging material in packages for solid or liquid foodstuff, tobacco or medicines.

REFERENCES:
patent: 3702886 (1972-11-01), Argauer et al.
patent: 4061724 (1977-12-01), Grose et al.
patent: 4525410 (1985-06-01), Hagiwara et al.
patent: 4795482 (1989-01-01), Gioffre et al.
patent: 5126174 (1992-06-01), Courtright et al.
patent: 5161686 (1992-11-01), Weber et al.
English Translation of AN 77-529794, Derwent Publications Ltd., London, GB; & JP-A-52 070 200 (IMAGAWA) 10 Jun. 1977.
AN 90-105014, Derwent Publications Ltd., London, GB & JP-A-2 057 572 (OTA) 27 Feb. 1990 (Abstract).
Donald W. Breck, "Zeolite Molecular Sieves", Structure, Chemistry, and Use, J. Wiley & Sons, Jul. 1973.
Peter A. Jacobs et al, "Synthesis of High-Silica Aluminosilicate Zeolites", Studies in Surface Science and Catalysis, vol. 33, 1987.
H. van Bekkum (Editors), "Introduction to Zeolite Science and Practice", Studies in Surface Science and Catalysis, vol. 58, 1991.
Abstract of JP 61-70098.
Abstract of JP 2-235740.

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