Process for fabricating polymeric articles
AssigneeCanco Hungary Investment Ltd.
InventorsIan MacMillan Ward, Peter John Hine, Keith Norris
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AssigneeCanco Hungary Investment Ltd.
InventorsIan MacMillan Ward, Peter John Hine, Keith Norris
Estimating the term…
A process for the production of a polymeric article directed to (a) forming a ply having successive layers, namely, (i) a first layer made up of strands of an oriented polymer material; (ii) a second layer of a polymeric material; (iii) a third layer made up of strands of an oriented polymeric material, wherein the second layer has a lower peak melting temperature that of the first and third layers; (b) subjecting the ply to conditions of time, temperature, and pressure sufficient to melt a proportion of the firsts layer to melt the second layer entirely, and to melt a proportion of the third layer, and to compact the ply; and (c) cooling the compacted ply. The resultant articles have good mechanical properties yet may be made at a lower compaction temperature than articles not employing the second layer, leading to a more controllable manufacturing process.
A polymeric article comprising a ply of at least three layers, the at least three layers comprising, in sequence, a first layer composed of strands of a first polymeric material, a second layer composed of a second polymeric material, and a third layer composed of strands of a third polymeric material, wherein the polymeric material of each of the three layers has a melting temperature and the second polymeric material has a degree of polymeric orientation less than that of the strands of the first and third polymeric materials;
A polymeric article comprising a ply of at least three layers, the at least three layers comprising, in sequence, a first layer composed of strands of a first polymeric material, a second layer composed of a second polymeric material, and a third layer composed of strands of a third polymeric material, wherein the polymeric material of each of the at least three layers has a melting temperature and the degree of polymeric orientation of the second polymeric material is less than that of the strands of the first and third polymeric materials;
Dependencies are inferred from the claim text.