Process for producing a laminated film or sheet structure

Details Process for producing a laminated film or sheet structure Process for producing a laminated film or sheet structure

1982-04-07

1984-10-02

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624414, 15624424, B29D 2304

Patent

active

044746342

ABSTRACT:
A laminated film or sheet structure composed of (i) an adhesive layer (A), (ii) synthetic resin film layers (B.sub.1) and (B.sub.2) monoaxially oriented in a direction oblique to the longitudinal direction of the film, said layers (B.sub.1) and (B.sub.2) being located on both surfaces of said layer (A) in contact therewith, the directions of the orientations of said layers (B.sub.1) and (B.sub.2) crossing each other, and (iii) a substantially non-oriented synthetic resin film layer (C.sub.1) and/or a substantially non-oriented synthetic resin film layer (C.sub.2), said layers (C.sub.1) and/or (C.sub.2) being melt-adhered to both or one of said layers (B.sub.1) and (B.sub.2), said layers (C.sub.o) and/or (C.sub.2) having a lower orientation temperature than said layers (B.sub.1) and (B.sub.2); and a process for production thereof.

REFERENCES:
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patent: 3471353 (1969-10-01), Rasmussen
patent: 3508944 (1970-04-01), Henderson et al.
patent: 3853661 (1974-12-01), Sudo
patent: 3891374 (1975-06-01), Ninomiya et al.
patent: 3894907 (1975-07-01), Sudo
patent: 3983285 (1976-09-01), Riboulet et al.
patent: 4009975 (1977-03-01), Ninomiya et al.
patent: 4011128 (1977-03-01), Suzuki
patent: 4084028 (1978-04-01), Rasmussen

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