Patent Number: 7,045,321

Title: POLYHYDROXYALKANOATE CONTAINING UNIT WITH PHENYLSULFANYL STRUCTURE IN THE SIDE CHAIN, PROCESS FOR ITS PRODUCTION, CHARGE CONTROL AGENT, TONER BINDER AND TONER WHICH CONTAIN NOVEL POLYHYDROXYALKANOATE, AND IMAGE-FORMING METHOD AND IMAGE-FORMING APPARATUS WHICH MAKE USE OF THE TONER

Abstract: A polyhydroxyalkanoate characterized by having in the molecule a unit represented by Chemical Formula (1): ##STR00001## wherein n may assume any one integral value within the range of from 1 to 8. Also disclosed are a process for producing the polyhydroxyalkanoate by the use of a microorganism having the ability to produce the polyhydroxyalkanoate and accumulate it in the bacterial body; a charge control agent, a toner binder and a toner which contain this polyhydroxyalkanoate; and an image-forming method and an image-forming apparatus which make use of the toner.

Inventors: Imamura; Takeshi (Kanagawa, JP), Sugawa; Etsuko (Kanagawa, JP), Yano; Tetsuya (Kanagawa, JP), Nomoto; Tsuyoshi (Tokyo, JP), Suzuki; Tomohiro (Kanagawa, JP), Honma; Tsutomu (Kanagawa, JP), Kenmoku; Takashi (Kanagawa, JP), Fukui; Tatsuki (Kanagawa, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: C12P 11/00 (20060101); C08G 63/02 (20060101); C12P 13/00 (20060101)

Expiration Date: 5/16/02018