C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/02 (2006.01) B29C 49/00 (2006.01) C08J 3/20 (2006.01) C08K 3/08 (2006.01)
Patent
CA 2560567
A polymer additive for improving the reheat characteristics of a polymer or polymeric composition comprises an inorganic material which is such that a 2.5mm thick polyethylene terephthalate plaque incorporating the inorganic material has, when tested, an absorption ratio of less than 0.9, wherein the absorption ratio is either the ratio of A1/A2 or the ratio A1/A3, wherein: A1 is the maximum absorption between 400nm and 550nm; A2 is the maximum absorption between 700 to 1100 nm; A3 is the maximum absorption between 700 to 1600 nm. Preferred inorganic materials are titanium nitride, indium tin oxide and lanthanum hexaboride.
Additif pour polymère améliorant les caractéristiques de rechauffe d'une composition polymère, qui contient une matière inorganique ayant un effet tel qu'une plaque de téréphtalate de polyéthylène de 2,5 mm d'épaisseur renfermant ladite matière inorganique possède, lorsqu'elle est testée, un rapport d'absorption inférieur à 0,9, le rapport d'absorption étant soit le rapport A1/A2, soit le rapport A1/A3. A1 représente l'absorption maximale entre 400 nm et 550 nm, A2 représente l'absorption maximale entre 700 et 1100 nm et A3 représente l'absorption maximale entre 700 et 1600 nm. Les matières inorganiques préférées sont le nitrure de titane, l'oxyde d'indium-étain et l'hexaborure de lanthane.
Frost Mark
Jarvis Anthony
Rule Mark
Colormatrix Europe Limited
Kirby Eades Gale Baker
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