Method for stretching polymer film and device for recovering...

Details Method for stretching polymer film and device for recovering... Method for stretching polymer film and device for recovering...

2011-01-04

2011-01-04

Nguyen, Khanh (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S160000, C156S212000, C008S132000, C264S197000, C264S198000, C264S210100, C264S235600, C264S291000, C264S290200, C427S171000

Reexamination Certificate

active

07862676

ABSTRACT:
A rear end portion of a leading TAC film and a front end portion of a following TAC film are connected using a double-sided adhesive tape and a single-sided adhesive tape. A laser welding device emits a welding laser beam along a welding line onto the films. Owing to the welding laser beam, the leading and following TAC films are welded along the welding line. The laser welding device emits a cutout laser beam along a cutout line onto the films. Owing to the cutout laser beam, a part of the leading and following TAC films surrounded by the cutout line is cut out. The cut out part has the single-sided adhesive tape attached. Since the tape cannot be recycled, the cut out part is absorbed by an absorbing device and disposed.

REFERENCES:
patent: 3087610 (1963-04-01), Kirkpatrick
patent: 4560445 (1985-12-01), Hoover et al.
patent: 4670072 (1987-06-01), Pastor et al.
patent: 4847462 (1989-07-01), Soodak et al.
patent: 5405470 (1995-04-01), Held
patent: 2007/0045896 (2007-03-01), Kato et al.
patent: 2002-311240 (2002-10-01), None

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