Polyhydroxyalkanoate copolymer, resin composition, molded product, toner, image forming method and image forming apparatus
US7452960B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Apr 30, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24322
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyhydroxyalkanoate copolymer comprises one kind of unit of—[OCH((CH2)x—SOC6H5R)CH2CO]— (n=1-7) (1)(wherein R is any one of H, halogen, CN, NO2, COOR′, SO2R″ (R′ is any one of H, Na, K, CH3 and C2H5; R″ is any one of OH, ONa, OK, halogen, OCH3 and OC2H5), CH3, C2H5, C3H7, (CH3)2—CH and (CH3)3—C) and—[OCH((CH2)x—SO2C6H5R)CH2CO]— (n=1-7) (2)(wherein R is any one of H, halogen, CN, NO2, COO R′, SO2R″ (R′ is any one of H, Na, K, CH3 and C2H5; R″ is any one of OH, ONa, OK, halogen, OCH3 and OC2H5), CH3, C2H5, C3H7, (CH3)2—CH and (CH3)3—C) and at least one unit of chemical formulae (3) to (6):—[OCH((CH2)m—Rz)CH2CO]— (n=1-8) (3)(wherein Rz comprises a residue having either a phenyl structure or a thienyl structure),—[OCH((CH2)k—C6H11Ra)CH2CO]— (n=1-8) (4)(wherein Ra is any one of H, CN, NO2, halogen, CH3, C2H5, C3H7, CF3, C2F5 and C3F7)—[OCH((CH2)n—CH═CH2)CH2CO]— (n=1-8), and (5)—[OCH((CH2)n—COORb)CH2CO]— (n=1-8) (6)(wherein Rb is any one of H, Na and K).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.