Film joining method, a wide film produced by the joining...

Details Film joining method, a wide film produced by the joining... Film joining method, a wide film produced by the joining...

2005-01-11

2005-01-11

Purvis, Sue A. (Department: 1734)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S304100, C156S304300, C428S058000

Reexamination Certificate

active

06841028

ABSTRACT:
A method for joining films having a hydrophilized surface at a single surface and an excellent melt-bonding force at the melt-bonded portion, which is formed by disposing two films (A) having a hydrophilized surface at a single surface, to align the hydrophilized surfaces so as to butt each end portion; overlaying a film (B) on a side of non-hydrophilized surface of the films (A), so as to bridge the butting portion, and hot-pressing the overlapping portion (c1)5 to join the two films (A). A wide film obtained by the above-mentioned method is suitable for a covering material for agricultural use.

REFERENCES:
patent: 4269647 (1981-05-01), Verkinderen et al.
patent: 58-028326 (1983-02-01), None
patent: 60-125637 (1985-07-01), None
patent: 62227724 (1987-10-01), None
patent: 63-122522 (1988-05-01), None

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