Composite material

Details Composite material Composite material

1997-01-15

1999-01-12

Chen, Vivian

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

428325, 428328, 428331, 428402, 428901, 428913, 338 7, 338 14, 338 20, 338 21, 338 22R, 338223, 338224, 327512, B32B 2700, H01C 702, H01C 710, H01C 712

Patent

active

058585338

ABSTRACT:
A varistor and a PTC resistor formed from a composite material containing a polymer matrix and a filler. The varistor experiences two nonlinear changes caused by the current due to applied voltage, the varistor comprising a composite material comprising a filler and a polymer matrix, the filler consisting of particles of grained microstructure. The PTC resistor experiences a first nonlinear dependency of resistivity at a first PTC temperature resulting from an interaction of the filler and the polymer matrix and a second nonlinear dependency of resistivity at a second, lower PTC temperature resulting from the filler.

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