Title:
TEMPERATURE INDICATOR USING THERMOCHROMIC MATERIALS
Document Type and Number:
WIPO Patent Application WO2003065856
Kind Code:
A3
Abstract:
A temperature indicator for a rubber article comprises a thermochromic material, wherein the thermochromic material is a component of a rubber article selected from the group consisting of tires, belts and hoses. A rubber article containing a temperature indicator is also disclosed, wherein the temperature indicator comprises a thermochromic material compounded with an elastomeric compound to form an elastomeric temperature indicator. A method of determining the operating temperature of a rubber article comprises incorporating at least one thermochromic material into a rubber article, the at least one thermochromic material having the property of changing color at a predetermined temperature, and examining the thermochromic material for a change in color, wherein the rubber article is selected from the group consisting of tires, belts and hoses.
Inventors:
KELLEY FRANK (US)
ROSENBAUM BARRY (US)
ROSENBAUM BARRY (US)
Application Number:
PCT/US2003/003717
Publication Date:
December 04, 2003
Filing Date:
February 06, 2003
Export Citation:
Assignee:
UNIV AKRON (US)
KELLEY FRANK (US)
ROSENBAUM BARRY (US)
KELLEY FRANK (US)
ROSENBAUM BARRY (US)
International Classes:
B60C13/00; B60C23/04; B60C23/20; (IPC1-7): G01K1/02; G01M17/02; B60C11/24
Foreign References:
| US4317479A | 1982-03-02 | |||
| US4318436A | 1982-03-09 | |||
| DE19643995A1 | 1998-05-07 | |||
| US4421560A | 1983-12-20 | |||
| US4450023A | 1984-05-22 | |||
| US5736472A | 1998-04-07 | |||
| US20030047264A1 | 2003-03-13 | |||
| US20020066507A1 | 2002-06-06 |
Other References:
See also references of EP 1481229A4
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