Plastic wrap with cling layer

Details Plastic wrap with cling layer Plastic wrap with cling layer

1997-07-17

1999-09-07

Ahmad, Nasser

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

229 8701, 229 8703, 427516, 427535, 427536, 428 417, 428 421, 428205, 428354, 428356, 428409, B65D 3300, C09J 702

Patent

active

059484934

ABSTRACT:
In order to form a plastic wrap which exhibits little or no cling until such time as the wrap is applied to an article or the like, the adhesive layer, which is formed on one side of a sheet of olefinic polymer, is exposed to a treatment which superficially oxidizes or cross-links the outer layer of adhesive material to form a film which exhibits greatly attenuated adhesion. This film is disruptable as the wrap is applied and is stretched and or deformed in a manner which uncovers the adhesive material and endows cling properties on at least localized areas of the wrap. Techniques for treating the adhesive layer include UV irradiation, exposure to corona and ozonification.

REFERENCES:
patent: 4351876 (1982-09-01), Doi et al.
patent: 4425268 (1984-01-01), Cooper
patent: 4504434 (1985-03-01), Cooper
patent: 4542188 (1985-09-01), van der Heijden
patent: 4963388 (1990-10-01), Benoit
patent: 5175049 (1992-12-01), Huff et al.
patent: 5212001 (1993-05-01), Brant et al.
patent: 5225257 (1993-07-01), Brant
patent: 5538790 (1996-07-01), Arvedson et al.

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