CONDUCTIVE POLYMER COMPOSITION, CONDUCTIVE POLYMER SHEET, ELECTRICAL DEVICE AND PREPARATION METHODS THEREFOR

Title:

CONDUCTIVE POLYMER COMPOSITION, CONDUCTIVE POLYMER SHEET, ELECTRICAL DEVICE AND PREPARATION METHODS THEREFOR

Document Type and Number:

WIPO Patent Application WO/2017/000899

Kind Code:

A1

Abstract:

Provided are a conductive polymer composition, a conductive polymer sheet, an electrical device and preparation methods therefor. The conductive polymer composition of the present invention comprises a polymer powder and a conductive powder at a volume ratio of 35 : 65 to 65 : 35, wherein the polymer comprises at least one semi-crystalline polymer selected from polyolefins, a copolymer of at least one olefin and at least one non-olefin monomer copolymerizable therewith and a thermoformable fluorine-containing polymer; the conductive powder comprises at least one powder of a transition metal carbide, a transition metal silicon carbide, a transition metal aluminium carbide and a transition metal tin carbide; and the size distribution of the conductive powder satisfies: 20 ＞ D100/D50 ＞ 6, wherein D50 represents the corresponding particle size when the cumulative particle size distribution percentage in the conductive powder reaches 50%, and D100 represents the maximum particle size. The conductive polymer composition has an excellent processing performance, and can be used for preparing a PPTC device with an ultralow resistance which can be stable in air without an oxygen barrier coating.

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Inventors:

FU YINGSONG (CN)
CHEN JIANHUA (CN)
JIN MINGJUN (CN)
ZHOU ZHIYONG (CN)
ZHENG WEI (CN)
HU CHENG (CN)

Application Number:

PCT/CN2016/087896

Publication Date:

January 05, 2017

Filing Date:

June 30, 2016

Export Citation:

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Assignee:

RAYCHEM ELECTRONICS (SHANGHAI) LTD (CN)
TYCO ELECTRONICS CORP (US)

International Classes:

C08K3/08; C08L23/06; C08K3/14; C08L23/08; C08L23/12; C08L23/16; C08L27/12; H01C7/02

Foreign References:

CN103594215A	2014-02-19
JP2005183750A	2005-07-07
JP2003318008A	2003-11-07

Attorney, Agent or Firm:

CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)

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