| abstract |
The present invention relates to an article suitable to act as a thermal switch device, the article having a surface resistance of more than 10 5 ohms and formed from a polymer composition comprising from 50 to 99.9 wt % relative to the total weight of the polymer composition, of a polymer being selected from an amorphous polymer having a glass transition temperature Tg, a semi-crystalline polymer having a melting temperature Tm or a mixture thereof, and from 0.1 to 50 wt % relative to the total weight of the polymer composition, of a conductive material, wherein the surface resistance of the article is divided by at least 10, preferably by at least 100, when said article is submitted for a determined period of time of less than 5 minutes to a temperature of switch i) ranging from Tg+10° C. to Tg+250° C. if the polymer composition comprises an amorphous polymer, or ii) ranging from Tm−80° C. to Tm+250° C. if the polymer composition comprises a semi-crystalline polymer. |