Organic PTC thermistor and making method
First Claim
1. An organic positive temperature coefficient thermistor comprising an organic polymer matrix and conductive metal particles dispersed therein, wherein a layer made of an organic material which is different from the organic polymer matrix, does not covalently bond with the conductive metal particles, and is not compatible at a molecular level with the organic polymer matrix is disposed in close proximity to surfaces of the conductive metal particles.
1 Assignment
0 Petitions
Accused Products
Abstract
In an organic PTC thermistor comprising an organic polymer matrix and conductive metal particles dispersed therein, the conductive metal particles are pretreated with an organic material which is different from the organic polymer matrix, does not covalently bond with the conductive metal particles, and is not compatible at a molecular level with the organic polymer matrix so that an organic material layer covers surfaces of conductive metal particles whereby the stability of thermistor performance is improved.
-
Citations
15 Claims
-
1. An organic positive temperature coefficient thermistor comprising an organic polymer matrix and conductive metal particles dispersed therein, wherein
a layer made of an organic material which is different from the organic polymer matrix, does not covalently bond with the conductive metal particles, and is not compatible at a molecular level with the organic polymer matrix is disposed in close proximity to surfaces of the conductive metal particles.
-
8. A method for preparing an organic positive temperature coefficient thermistor, comprising the steps of:
-
pretreating conductive metal particles with an organic material so that the organic material covers surfaces of the conductive metal particles, and mixing the treated conductive metal particles with an organic polymer matrix for dispersion. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
Specification