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
US7408017B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Jun 17, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09775
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polyhydroxyalkanoate is disclosed which has in the molecule a unit represented by Chemical Formula (1).wherein R is arbitrarily selected from a hydrogen atom, a halogen atom, CN, NO2, COOR′, SO2R″, CH3, C2H5, C3H7, C(CH3)2H and C(CH3)3; where R′ is H, Na, K, CH3 or C2H5, and R″ is OH, ONa, OK, a halogen atom, OCH3 or OC2H5; and x is an integer arbitrarily selected from 1 to 8; with the proviso that a polyhydroxyalkanoate is excluded which has a hydrogen atom as R and x in all the units is 2 or 4. Also disclosed is 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.