Process for producing of a honeycomb structure and honeycomb structure so produced
AssigneeTubus Bauer GmbH
InventorRainer Duchene
Life of this patent
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Abstract
A honeycomb structure (1) comprises a plurality of small tubes (2) bonded to each other along their sides. The small tubes (2) have a base body (4) made of a thermoplastic and which, at least on the outside, preferably on the outside and on the inside, carries a coating (5) made of an adhesively-active thermoplastic material. As a result of this coating (5), a good bonding of the small honeycomb tubes (2) to each other as well as to a cover layer (3) is possible.
Claims8
A honeycomb structure comprising a plurality of small tubes bonded to each other at their sides, the small tubes (2, 2a) comprising a base body (4) made of a thermoplastic material, the base body having a coating (5) made of an adhesively-active thermoplastic material on an inside and an outside thereof, a cover layer (3) bonded to ends of the small tubes on at least one side of the structure with an adhesive (6) which bonds with said adhesively-active thermoplastic material on at least the insides of the tubes.
A process for producing honeycomb structure having a plurality of small tubes bonded to each other at their sides, comprising producing a plurality of individual small tubes (2, 2a) with a layer of adhesively-active thermoplastic material on an outside and an inside of the tubes in a co-extrusion process, aligning the individual small tubes (2, 2a) alongside each other, bonding the small tubes lying adjacent to one another together by subjecting them to a thermal treatment, bonding at least one cover layer (3) to the ends of the tubes using an adhesive (6) which bonds with said adhesively-active thermoplastic material on at least the inside of the tubes.
Dependencies are inferred from the claim text.