Muncy, Geissler, Olds & Lowe, P.C.
PTC composition and over-current protection device containing the same
A PTC composition comprises crystalline polymer and conductive filler. The conductive filler comprises tungsten carbide powder dispersed in the crystalline polymer, and the tungsten carbide powder comprises impurity of less than 7% by weight. The impurity comprises the materials other than tungsten monocarbide.
Polytronics Technology Corp.
H H H H
H01C H01C H01C H01B
additional inventional inventional inventional
Kuo Chang Yi An Tong Cheng Chien Cheng
Lo Sha Tsai Ho