PTC composition and PTC device comprising the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 21, 2006
Grant Date -
May 27, 2004
app pub date -
Feb 27, 2002
filing date -
Mar 29, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a conductive polymer composition having PTC properties, that is, a PTC composition, and a PTC device comprised thereof, in particular, it relates to a PTC composition and a PTC device comprising thereof, wherein the PTC composition comprises: a) at least one crystalline thermoplastic olefin-based polymer and at least one rubber-based polymer resin containing unsaturated group; and b) conductive particles dispersed in a polymer matrix formed of component a). The PTC device comprising the PTC composition makes it possible to construct circuit protecting devices which can stably maintain their initial resistance value in spite of repeated current cycling by short-circuit.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully