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1. WO1996002923 - TEMPERATURE-SENSING POLYMER BODY AND TEMPERATURE-SENSING ELEMENT MADE THEREFROM

Publication Number WO/1996/002923
Publication Date 01.02.1996
International Application No. PCT/JP1995/001398
International Filing Date 13.07.1995
Chapter 2 Demand Filed 06.02.1996
IPC
G01K 7/22 2006.01
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16using resistive elements
22the element being a non-linear resistance, e.g. thermistor
H01C 7/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
7Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
04having negative temperature coefficient
CPC
G01K 7/22
GPHYSICS
01MEASURING; TESTING
KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16using resistive elements
22the element being a non-linear resistance, e.g. thermistor
H01C 7/049
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
CRESISTORS
7Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
04having negative temperature coefficient
049mainly consisting of organic or organo-metal substances
Applicants
  • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. [JP/JP]; 1006, Oaza Kadoma Kadoma-shi Osaka 571, JP (AllExceptUS)
  • YAMAZAKI, Tadataka [JP/JP]; JP (UsOnly)
  • ITO, Masahiko [JP/JP]; JP (UsOnly)
  • KOHARA, Kazuyuki [JP/JP]; JP (UsOnly)
Inventors
  • YAMAZAKI, Tadataka; JP
  • ITO, Masahiko; JP
  • KOHARA, Kazuyuki; JP
Agents
  • AOYAMA, Tamotsu ; Aoyama & Partners IMP Building 3-7, Shiromi 1-chome Chuo-ku, Osaka-shi Osaka 540, JP
Priority Data
6/16122513.07.1994JP
6/25591521.10.1994JP
7/11968518.05.1995JP
7/11968718.05.1995JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) TEMPERATURE-SENSING POLYMER BODY AND TEMPERATURE-SENSING ELEMENT MADE THEREFROM
(FR) CORPS EN POLYMERE DE DETECTION DE TEMPERATURE ET ELEMENT DE DETECTION DE TEMPERATURE L'UTILISANT
Abstract
(EN)
A temperature-sensing polymer body comprising a polyamide composition prepared by compounding 100 parts by weight of a polyamide with 5.3-30 parts by weight of zinc iodide or a polyamide composition prepared by compounding a polyamide with an iodine compound and a metal oxide such as zinc oxide. The metal iodide compound increases remarkably the temperature dependency of the impedance by virtue of the ion carrier characteristic thereof and zinc oxide as the metal oxide functions as an iodide ion acceptor to thereby inhibit the formation of metal iodides on the surface of a metallic electrode. Furthermore zinc oxide serves to form zinc iodide and improve half-wave current flow stability, thus improving the thermal stability of the temperature-sensing polymer body for long and remarkably increasing the thermal stability as a temperature sensor or a heat-sensitive heater.
(FR)
L'invention porte sur un corps de détection de température à base de polymère constitué d'une composition de polyamide comprenant en poids 100 parties d'un polyamide, et 5,3 à 30 parties d'iodure de zinc; ou d'une composition de polyamide préparée par mélange d'un polyamide avec un composé à base d'iode et d'un oxyde métallique tel que l'oxyde de zinc. Le composé à base d'iodure métallique accroît remarquablement la dépendance de l'impédance vis-à-vis de la température en raison de ses caractéristiques de porteur d'ions, tandis que l'oxyde de zinc en tant qu'accepteur d'ions iodure empêche la formation d'iodures métalliques à la surface d'une électrode en métal. De plus, l'oxyde de zinc sert à la formation d'iodure de zinc, ce qui améliore la stabilité de passage du courant en demi-onde et par là la stabilité thermique du corps de détection de température en polymère qui peut servir de capteur thermique ou d'élément de chauffe thermosensible.
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