EP 1889049 A2 20080220 - THERMOCHROMIC AND THERMOFLOURESCENT PIGMENTS: ENHANCING COLOR AND FLOURESCENCE WITH ADDITIVES
Title (en)
THERMOCHROMIC AND THERMOFLOURESCENT PIGMENTS: ENHANCING COLOR AND FLOURESCENCE WITH ADDITIVES
Title (de)
THERMOCHROME UND THERMOFLUORESZIERENDE PIGMENTE: INTENSIVIERUNG VON FARBE UND FLUORESZENZ MIT ZUSÄTZEN
Title (fr)
PIGMENTS THERMOCHROME ET THERMOFLUORESCENTS: ACCENTUATION DE COULEUR ET DE FLUORESCENCE AU MOYEN D'ADDITIFS
Publication
Application
Priority
- US 2006019676 W 20060522
- US 68460305 P 20050525
Abstract (en)
[origin: WO2006127569A2] A thermal indicator material and method of producing a material capable of a thermochromic transition upon undergoing a temperature change. The material comprises a plurality of compounds having the following structure: (I) wherein R<SUB>1</SUB>-R<SUB>6</SUB> = a hydrogen, substituted or unsubstituted alkyl radical, substituted or unsubstituted alkoxy radical, substituted or unsubstituted aryl radical, substituted or unsubstituted thioalkyl radical, substituted or unsubstituted trialkylsilyl radical, substituted or unsubstituted acyl radical, substituted or unsubstituted ester radical, substituted or unsubstituted amine radical, substituted or unsubstituted amide radical, substituted or unsubstituted heteroaryl or substituted or unsubstituted aryl radical n is between 1 and 1000, m is between 0 and 1000, and 1 is between 1 and 1000; with added small molecules, the small molecule additive having the following structure: R-Ar-R' , R-X, linaer alkane, or oligoethylene oxide small molecules with molecular weight less than 1,000 AMU wherein R-R' = a hydrogen, substituted or unsubstituted alkyl radical, substituted or unsubstituted alkoxy radical, substituted or unsubstituted thioalkyl radical, substituted or unsubstituted trialkylsilyl radical, substituted or unsubstituted acyl radical, substituted or unsubstituted ester radical, substituted or unsubstituted amine radical, substituted or unsubstituted amide radical, substituted or unsubstituted heteroaryl or substituted or unsubstituted aryl radical and Ar = a substituted or unsubstituted aromatic or heteroaromatic radical including but not limited to benzene, thiophene, naphthalene, flourene, anthracene, pyridine, indine, biphenyl, phenanthrene, and furan X = a halogen (F, Cl, Br, or I). The thermochromic transition of the material is reversible. The thermochromic transition is a two step transition, such that when the samples are heated above the thermochromic transition temperature followed by a rapid cooling to a temperature below the thermochromic transition temperature in a time of less than about 5 seconds, a new low temperature color is generated which then has an irreversible thermochromic transition.
IPC 8 full level
G01N 31/22 (2006.01); G01K 11/16 (2006.01)
CPC (source: EP)
C08L 75/04 (2013.01)
C-Set (source: EP)
Citation (search report)
See references of WO 2006127569A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
WO 2006127569 A2 20061130; WO 2006127569 A3 20071108; EP 1889049 A2 20080220
DOCDB simple family (application)
US 2006019676 W 20060522; EP 06770799 A 20060522