Laminate for flexible packaging and a process for preparing the

Details Laminate for flexible packaging and a process for preparing the Laminate for flexible packaging and a process for preparing the

1994-02-09

1996-06-18

Nakarani, D. S.

Stock material or miscellaneous articles

Composite

Of polyamidoester

4284235, 4284237, 4284242, 4284244, 4284246, 4284248, 4284258, 524153, 524292, 524296, 524298, 524313, 528 59, 528 79, 528 80, 528 83, 528369, B32B 2722, B32B 2740

Patent

active

055276164

ABSTRACT:
A laminate for flexible packaging and a process for preparing the same. The laminate for flexible packaging is obtained by joining a plurality of flexible blanks via layers of an adhesive agent, wherein the layers of said adhesive agent are layers of an isocyanate-terminated polyurethane type hot-melt resin that is crosslinked with the moisture, the residual amount of an organic solvent in said laminate is 10 .mu.g/m.sup.2 or smaller per a unit inner surface, the peeling strength at 25.degree. C. is 250 g/15 mm of width or greater, and a peeling strength retentivity at 80.degree. C. is 30% or greater of the peeling strength at 25.degree. C.

REFERENCES:
patent: 3170833 (1965-02-01), Noyes
patent: 4242488 (1980-12-01), Stanley et al.

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