C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 9/02 (2006.01) B41J 2/435 (2006.01) B41M 5/28 (2006.01) B41M 5/36 (2006.01) C08J 3/20 (2006.01) C08J 3/28 (2006.01) C08K 5/20 (2006.01) C08L 23/06 (2006.01) C08L 23/12 (2006.01) C08L 67/02 (2006.01)
Patent
CA 2710990
The present invention relates to thermoplastic material comprising polymer and at least one polychromic substance, wherein the polychromic substance is a functionalised diacetylene having the formula which has the general structure: X-C C-C C-Y-(CO)n -QZ wherein X is H or alkyl, Y is a divalent alkylene group, Q is O, S or NR, R is H or alkyl, and Z is alkyl, and n is 0 or 1. The present invention further relates to a method of processing thermoplastic material to form a plastic article, wherein the method comprises the step of processing the thermoplastic material at a temperature greater than the melt temperature of the thermoplastic, wherein the thermoplastic material comprises polymer and at least one polychromic substance as defined above; and further comprising the step of irradiating the plastic article to colour at least a region of the plastic article.
Matériau thermoplastique comprenant un polymère et au moins une substance polychrome, laquelle substance polychrome est un diacétylène fonctionnalisé dont la formule répond à la structure générale X-C C-C C-Y-(CO)n -QZ, où X est H ou alkyle, Y est un groupe alkykène divalent, Q est O, S ou NR, R est H ou alkyle, et z est alkyle, n valant 0 ou 1. L'invention concerne également un procédé de transformation d'un matériau thermoplastique en un article plastique consistant à traiter le matériau thermoplastique à une température supérieure à sa température de fusion, lequel matériau comprend un polymère et au moins une substance polychrome comme défini ci-dessus, puis à irradier l'article en plastique afin d'en colorer au moins une région.
Jarvis Anthony Nicholas
Lamb Christopher
Rogers Neil John
Kirby Eades Gale Baker
The Procter & Gamble Company
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