Polyhydroxyalkanoate containing unit having cyclohexyl...

Details Polyhydroxyalkanoate containing unit having cyclohexyl... Polyhydroxyalkanoate containing unit having cyclohexyl...

2008-04-01

2008-04-01

Lilling, Herbert J. (Department: 1657)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

C435S128000, C435S135000, C528S176000, C528S193000, C528S271000, C528S272000, C528S354000, C528S363000

Reexamination Certificate

active

07351786

ABSTRACT:
Disclosed are a polyhydroxyalkanoate, containing in a polymer molecule thereof a monomer unit represented by the following general formula (1):(wherein R1 represents a substituent to a cyclohexyl group, where R1 is a H atom, a CN group, a NO2group, a halogen atom, a CH3group, a C2H5group, a C3H7group, a CF3group, a C2F5group, or a C3F7group; and if there are two or more monomer units, R1 may be different from every monomer unit), and a binder resin using the polyhydroxyalkanoate. The binder resin is biodegradable, so that the binder resin is more responsible for the conservation of natural environment or the like. Also, the binder resin facilitates deinking in the deinking process using an alkali, so that the binder resin accelerates recycling of used copying paper. Furthermore, the binder resin satisfies the desired characteristics of a toner for developing an electrostatic charge image.

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