B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 59/02 (2006.01) B29C 59/00 (2006.01) B32B 27/36 (2006.01) B44C 1/24 (2006.01) B29C 33/68 (2006.01)
Patent
CA 2079265
Abstract of the Disclosure A process for producing superficially structured layers wherein a structured surface of a film is contacted with a surface which is to be structured, the structure of the film being transferred by means of elevated pressure and/or elevated temperature to the surface which is to be structured, and the structured film is subsequently removed if necessary, wherein the production of the film having a structured surface is carried out by embossing an embossable, stretched, biaxially oriented and heat-set multi-layer film of polyesters, this film comprising two outer polyester layers of polyethylene terephthalate, between which a lower-melting polyester layer of a copolyester with units of ethylene terephthalate and ethylene isophthalate is embedded, this interlayer being composed of a copolyester which contains between 5 and 95% by weight of ethylene isophthalate units, and the outer polyester layer, from which the embossing is carried out, having a thickness smaller than that of the second outer polyester layer.
Beer Ekkehard
Schad Alfred
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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