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:
Dec. 02, 2008
Filed:
Oct. 23, 2003
Tatsuki Fukui, Yokohama, JP;
Tetsuya Yano, Atsugi, JP;
Chieko Mihara, Isehara, JP;
Shinya Kozaki, Tokyo, JP;
Tsutomu Honma, Atsugi, JP;
Takashi Kenmoku, Fujisawa, JP;
Tatsuki Fukui, Yokohama, JP;
Tetsuya Yano, Atsugi, JP;
Chieko Mihara, Isehara, JP;
Shinya Kozaki, Tokyo, JP;
Tsutomu Honma, Atsugi, JP;
Takashi Kenmoku, Fujisawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A novel polyhydroxyalkanoate having a monomer unit represented by the formula (1), the unit having a carboxyl group substituting a ring structure at the end of side chain, obtainable by oxydizing vinyl or methyl group substituting a ring structure at the end of the side chain. The polyhydroxyalkanoate has high thermal stability, charge stablity, a high charge amount, improved dispersibility and biodegradability together, and therefore, suitable for resin moldings, and binders and charge controlling agents for toners used in the electrophotographic process.