B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 43/14 (2006.01) B29C 43/00 (2006.01) B29C 43/16 (2006.01)
Patent
CA 2267357
The invention concerns powdery, thermally unstable thermoplastic shaping compounds which are to be processed to form semi-finished products or shaped parts such that thermal decomposition processes are prevented and the semi- finished products and shaped parts display a high level of mechanical properties. To that end, the powdery thermoplastic shaping compound, which is precompressed under hydrostatic pressure, is exposed to a deviatoric stress below its melting temperature.
L'invention a pour but de façonner des matières moulables thermoplastiques en poudre, thermiquement instables, pour l'obtention de produits semi-finis ou de pièces moulées, de telle façon que les processus de dégradation thermiques soient entravés, et que les produits semi-finis et les pièces moulées possèdent des propriétés mécaniques de haut niveau. Ce but est atteint grâce au fait que la matière moulable thermoplastique en poudre, qui est précomprimée sous la pression hydrostatique, est exposée à une contrainte de déformation au-dessous de sa température de fusion.
Lupke Thomas
Metzner Klaus
Radusch Hans-Joachim
Sela Marion
Wengemuth Kerstin
Buna Sow Leuna Olefinverbund Gmbh
Ridout & Maybee Llp
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