Composite web of mutually parallel fibres in a matrix
AssigneeDsm N.V.
InventorsEric H. M. Hogenboom, Engelbertus H. M. Van Gorp, Martinus C. A. Van Den Aker
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Abstract
The invention relates to a composite web comprising one elongated flat composite layer of mutually parallel fibers in a matrix, in which the fibers run at an angle .alpha. (differing from 0.degree.) relative to the lengthwise direction of the web, and which in the lengthwise direction is made up of joined-up and connected web parts. This composite web can be used for continuously producing multi-layer composites. The composite layer of the composite web has no areas with overlap or gaps when placed in a multi-layer composite. The invention also relates to a method for the production of this composite web and of multi-layer composites.
Claims20
A composite web which in the lengthwise direction is made up of joined-up and connected web parts, which web parts contain a separating layer and thereon a composite layer of mutually essentially parallel fibres in a matrix, the composite layer of each web part being bounded by two transverse sides and lying opposite each other and running parallel to the fibres, which web parts are joined up, with a transverse side of the composite layer of each web part facing and parallel to the other transverse side or the composite layer of the joined-up web part, and with the fibres in the web parts at an angle a .alpha., differing from 0.degree. to the lengthwise direction of the composite web, and in which the separating layers of the joined-up web parts are connected to each other.
A cross-layered web of continuous length comprising a first and a second composite layer of mutually essentially parallel fibers in a matrix, in which the fibers of the fibers of the first composite layer lie at an angle, differing from 0.degree., relative to the fibers in the second composite layer, wherein the composite layers have no areas with overlap.
Dependencies are inferred from the claim text.