Process for producing a laminated film that is formed by blockin

Details Process for producing a laminated film that is formed by blockin Process for producing a laminated film that is formed by blockin

1994-06-03

1998-09-08

Crispino, Richard

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156271, 15624419, 1563082, 1563084, B32B 3102, B32B 3118

Patent

active

058040200

ABSTRACT:
Laminated films laminated by blocking characterized in the cut end is joined by heat fusion, that 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 does not separate through the laminating process and the bag-making process.

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patent: 4981734 (1991-01-01), Akao et al.

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