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Title:
NEW POLYHYDROXYALKANOATE HAVING AMIDE GROUP AND SULFONIC ACID GROUP, METHOD FOR PRODUCING THE SAME, CHARGE CONTROLLING AGENT CONTAINING THE NEW POLYHYDROXYALKANOATE, TONER BINDER, TONER, AND IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS USING THE TONER
Document Type and Number:
Japanese Patent JP3689697
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a new polyhydroxyalkanoate given by solving problems (hardness and brittleness) in melt-processability caused by a conventional polyhydroxyalkanoate which is obtained by biosynthesis to have 3-hydroxybutyric acid as its polymeric unit, and to provide an application of the same to an image forming process.
SOLUTION: The polyhydroxyalkanoate containing one or more units expressed by chemical formula (1) (R is OH, a halogen, ONa, OK, OCH3 or OC2H5; A is a substituted or unsubstituted aliphatic hydrocarbon structure; and m is an integer selected from 1 to 8; provided that R, A and m in a unit are independent of those in other units, respectively, when a plurality of units exist in the same molecule) in its molecule, a method for producing the same, a charge controlling agent containing the same, a toner binder, a toner, an image forming method using the toner, and an image forming apparatus using the toner are provided, respectively.


Inventors:
Appearance respect
Takeshi Imamura
Etsuko Sugawa
Tatsuki Fukui
Chieko Mihara
Tetsuya Yano
Application Number:
JP2003014704A
Publication Date:
August 31, 2005
Filing Date:
January 23, 2003
Export Citation:
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Assignee:
Canon Inc
International Classes:
G03G9/097; C08G63/688; C08G63/91; C08L101/16; C12P7/62; C12P11/00; G03G9/087; (IPC1-7): C08G63/688; G03G9/097
Domestic Patent References:
JP2004196832A
JP2001178485A
Attorney, Agent or Firm:
Akio Miyazaki
Shinichi Iwata
Masaaki Ogata
Nobuyuki Kaneda
Katsuhiro Ito
Ishibashi Masayuki