Laminating film without a release layer, process for the product

Details Laminating film without a release layer, process for the product Laminating film without a release layer, process for the product

1996-07-10

1999-03-02

Nakarani, D. S.

Stock material or miscellaneous articles

Composite

Of polyamidoester

428213, 428215, 428216, 428220, 4284235, 4284237, 4284242, 4284248, B32B 2734, B32B 2736, B32B 2740

Patent

active

058768521

ABSTRACT:
Film of at least two layers having at least one side softening at a lower temperature and at least one side softening at a higher temperature, wherein the higher-softening side substantially consists of a thermoplastic polyurethane which softens at above 100.degree. C. on a Kofler hot bench and the median of the softening range is at least 15.degree. C. above that of the lower-softening layer and the matrix component of the lower-softening side consists of at least one hot-bonding thermoplastic material from the group comprising polyamides, polyesters and polyurethanes having a median of the softening range on a Kofler hot bench of below 100.degree. C. and at least one thermoplastic additive component containing hydrocarbon is added to the lower-softening layer.

REFERENCES:
patent: 4370374 (1983-01-01), Raabe et al.
patent: 4410595 (1983-10-01), Matsumoto et al.

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