Laminated film and process for producing the same

Details Laminated film and process for producing the same Laminated film and process for producing the same

1992-05-27

1994-10-25

Buffalow, Edith

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428 357, 428417, 428516, 428913, B32B 712

Patent

active

053587855

ABSTRACT:
Laminated films laminated by blocking characterized in that the cut end is joined by heat fusion, the inner layer contains a thermoplastic resin having a Shore hardness lower than the resin of the outer layer, the inner layer comprises an acid-modified polyolefin resin, the joined portion by blocking comprises strongly joined portions and weakly joined portions, the end portions are joined more strongly than the central portion, and a process for producing the same. The laminated films are stably laminated by blocking and do not separate through the laminating process and the bag-making process.

REFERENCES:
patent: 3904465 (1975-09-01), Haase et al.
patent: 4070222 (1978-01-01), Olson

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