The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2014
Filed:
Oct. 14, 2011
Li-cheng Jheng, Kaohsiung, TW;
Wen-yang Chang, Tuku Township, Yunlin County, TW;
Kuo-chen Shih, Kaohsiung, TW;
Yi-lun Hsu, Tainan, TW;
Li-Cheng Jheng, Kaohsiung, TW;
Wen-Yang Chang, Tuku Township, Yunlin County, TW;
Kuo-Chen Shih, Kaohsiung, TW;
Yi-Lun Hsu, Tainan, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A method for manufacturing a piezoresistive material, a piezoresistive composition and a pressure sensor device are provided. The piezoresistive composition includes a conductive carbon material, a solvent, a dispersive agent, an unsaturated polyester and a crosslinking agent. The conductive carbon material is selected from a group consisting of multi-wall nanotube, single-wall carbon nanotube, carbon nanocapsule, graphene, graphite nanoflake, carbon black, and a combination thereof. The solvent is selected from a group consisting of ethyl acetate, butyl acetate, hexane, propylene glycol mono-methyl ether acetate and a combination thereof. The dispersive agent includes block polymer solution with functional groups providing the affinity. The unsaturated polyester is selected from a group consisting of an ortho-phthalic type unsaturated polyester, an iso-phthalic type unsaturated polyester, and a combination thereof. The crosslinking agent is selected from a group consisting of ethyl methyl ketone peroxide, cyclohexanone diperoxide, dibenzoyl peroxide, tert-butyl peroxybenzoate and a combination thereof.