The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2012
Filed:
Jan. 14, 2011
Neil John Rogers, Vilvoorde, BE;
Christopher Lamb, Ohain, BE;
Anthony Nicholas Jarvis, Widnes Cheshire, GB;
Neil John Rogers, Vilvoorde, BE;
Christopher Lamb, Ohain, BE;
Anthony Nicholas Jarvis, Widnes Cheshire, GB;
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
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)-QZwherein 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 color at least a region of the plastic article.