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Patents with Abstracts


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Patents with Abstracts

Polymeric materials and additives therefor
Jarvis, Frost and Rule of Colormatrix Europe Limited, Great Britain, developed a polymer additive for improving the reheat characteristics of a polymer or polymeric composition comprises an inorganic material which is such that a 2.5 mm 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 400 nm and 550 nm; 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.  (RDC 7/10/2012)

Thermoplastic material comprising polychromic substances
Rogers, Lamb and Jarvis of The Procter & Gamble Company, Ohio, developed a polychromic additive based on a functionalised diacetylene having the formula which has the general structure: X--C.ident.C--C.ident.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 material is added to a thermoplastic and irradiated to color at least a region of the plastic article (RDC 7/10/2012)


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(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

** Date of latest addition; date of first entry is 7/10/2012.