Method for forming particle-impregnated one-sided cling stretch wrap film

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United States of America Patent

PATENT NO 4963388
SERIAL NO

07313402

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for forming a one-sided cling stretch wrap film by adhering a particulate antiblock to one surface of the film while the surface is in a semiplastic state, applying a particle-embedding force to the surface and removing excess particulate matter. The thermoplastic stretch wrap film exhibits a significant level of cling on one surface but no appreciable cling force on the other, the latter surface exhibiting a slide property when in contact with a film or like surface due to the presence of particulate antiblock agent mechanically bonded thereto. The film can be used to overwrap one or a group of articles to form a unitized packaged unit employing any of the known and conventional tension-wrapping techniques. Because of its one-sided cling and slide capabilities, pallet loads overwrapped with the film and in mutual contact avoid film tearing or destruction when the pallet loads are separated from each other.

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Patent Owner(s)

  • COVALENCE SPECIALTY MATERIALS CORP.;TENNECO PACKAGING INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benoit, Gordon L Macedon, NY 34 668

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