Multi-component composite material and method for producing a laminar multi-component composite material from a halogen compound-free flexible plastic
First Claim
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1. A method for producing a laminar, heterogeneous multi-component composite material comprisingat least one homogeneous and halogen compound-free polymer andat least one laminar, fiber-containing layer having a printable upper surface, said fiber-containing layer being formed of non-woven fibers having interstices therebetween, the method comprising the steps of, in sequence:
- (a) melting a first polymer in the form of a melted first polymer layer of defined thickness,(b) applying the melted first polymer layer onto the upper surface of a first fiber-containing layer simultaneously with introducing the melted first polymer layer and first fiber-containing layer into a gap between two rollers of a rolling mill,(c) pressing the two layers together in the rolling mill so as to force the melted first polymer from a position on the upper surface of the first fiber-containing layer, and into the interstices of the first fiber-containing layer up to a pre-selected depth of the first fiber-containing layer, and(d) cooling to form a positive adhesive bond between the first polymer and the fibers to form a first composite material.
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Abstract
This invention is directed ro flexible plastic sheets of a thermoplastic material with a wear resistant surface, these sheets or panels have a monochromatic or multicolored or colored patterned design, especially in the area of manufacturing wear resistant floor coverings.
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Citations
6 Claims
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1. A method for producing a laminar, heterogeneous multi-component composite material comprising
at least one homogeneous and halogen compound-free polymer and at least one laminar, fiber-containing layer having a printable upper surface, said fiber-containing layer being formed of non-woven fibers having interstices therebetween, the method comprising the steps of, in sequence: -
(a) melting a first polymer in the form of a melted first polymer layer of defined thickness, (b) applying the melted first polymer layer onto the upper surface of a first fiber-containing layer simultaneously with introducing the melted first polymer layer and first fiber-containing layer into a gap between two rollers of a rolling mill, (c) pressing the two layers together in the rolling mill so as to force the melted first polymer from a position on the upper surface of the first fiber-containing layer, and into the interstices of the first fiber-containing layer up to a pre-selected depth of the first fiber-containing layer, and (d) cooling to form a positive adhesive bond between the first polymer and the fibers to form a first composite material. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification