Polyhydroxyalkanoate, process for preparing the same, and...

Details Polyhydroxyalkanoate, process for preparing the same, and... Polyhydroxyalkanoate, process for preparing the same, and...

2003-10-23

2008-12-02

Jagannathan, Vasu (Department: 1796)

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

Synthetic resins

From carboxylic acid or derivative thereof

C430S108500, C430S190000, C528S271000, C528S361000, C525S064000

Reexamination Certificate

active

07459517

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.

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