Laminated material comprising an outer sealing layer of thermopl

Details Laminated material comprising an outer sealing layer of thermopl Laminated material comprising an outer sealing layer of thermopl

1979-06-20

1981-04-28

McCamish, Marion

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156275, 428198, 428200, 428201, 428204, 428206, 428211, 428408, 428537, 428913, 428688, B32B 300

Patent

active

042646685

ABSTRACT:
A sealable laminated material which consists of an outer thermoplastic layer with a lamination layer arranged adjoining the said layer containing fine-grain carbon material, so-called carbon black, and a binder. The laminated material moreover may contain a carrier layer of e.g. paper, cardboard or plastic material. The outer thermoplastic layer of the laminated material which is intended to act as a sealing layer, can be heated up to sealing temperature in that heat is generated in the adjoining layer containing powdered coal when the latter is subjected to the effect of a high-frequency electric field.

REFERENCES:
patent: 3567546 (1971-03-01), Morris
patent: 3574031 (1971-04-01), Heller
patent: 3657038 (1972-04-01), Lightfoot
patent: 3679534 (1972-07-01), Weinberg
patent: 3865626 (1975-02-01), Diener
patent: 4103066 (1978-07-01), Brooks
patent: 4110506 (1978-08-01), Cottingham

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