PTC conductive polymer composition

Details PTC conductive polymer composition PTC conductive polymer composition

1998-08-11

2000-09-05

Yoon, Tae

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524424, 524428, 524492, 524496, 523215, 252502, 252504, C08K 304, C08K 310, C08K 314, C08K 336, H01B 124

Patent

active

061144339

ABSTRACT:
A novel PTC conductive polymer composition is disclosed, which comprises (a) 35 to 60%, by weight of the composition, of a branched polyolefin with a polydispersity index of less than 2.5; and (b) 20 to 45%, by weight of the composition, of conductive particles which have been dispersed in the polyolefin. The PTC composition of the invention has intense, reproducible PTC behavior and is particularly suitable for use in PTC thermistors.

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patent: 5246783 (1993-09-01), Spenadel et al.
patent: 5373046 (1994-12-01), Okamura et al.
patent: 5556697 (1996-09-01), Flenniken
patent: 5672297 (1997-09-01), Soane
patent: 5747164 (1998-05-01), Miyakawa et al.
patent: 5747563 (1998-05-01), Flenniken et al.

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