摘要:
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.
摘要翻译:公开了在分子中具有由化学式(1)表示的单元的聚羟基链烷酸酯。 其中R可以任选地选自氢原子,卤原子,CN,NO 2,COOR',SO 2 R“,CH 3 C 2 H 3,C 3 H 3,C(CH 3)3 H 3,C 3 H 3, 2)H和C(CH 3 3)3。 其中R'是H,Na,K,CH 3或C 2 H 5,并且R“是OH,ONa,OK, 卤素原子,OCH 3或OC 2 H 5; x是任意选自1至8的整数; 条件是排除了具有氢原子作为R的聚羟基链烷酸酯,并且所有单元中的x均为2或4.还公开了通过使用具有生产聚羟基链烷酸酯的能力的微生物来生产聚羟基链烷酸酯并累积 它在细菌体内。
摘要:
A novel polyhydroxyalkanoate having a reactive functional group in a molecule and a method of producing the same; and a novel polyhydroxyalkanoate having a new function obtained by chemically modifying the polyhydroxyalkanoate having a reactive functional group and a method of producing the same. A polyhydroxyalkanoate containing units having a carboxyl group, an amide group, and a sulfonic group in a molecule is induced.
摘要:
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) (5), and —[OCH((CH2)n—COORb)CH2CO]— (n=1-8) (6) (wherein Rb is any one of H, Na and K).
摘要:
The present invention provides a negataively chargeable charge controlling agent to control a charged state of a powder or granular material such as toner for electrophotography, where the agent comprises a polyhydroxyalkanoate having at least one kind of 3-hydroxy-ω-carboxyalkanoic acid unit represented by the chemical formula (1): wherein n is an integer selected from 1 to 8; R1 is an H, Na or K atom, or and when more than one unit exists, n and R1 is the same or different between the units. The charge controlling agent is excellent in electrophtographic properties and propitious to environment because of the biodegradability of the polyhydroxyalkanoate. wherein n is an integer selected from the range shown in the same chemical formula; R1 is an H atom, Na atom, K atom, or and when more than one unit exists, n and R1 may differ from unit to unit.
摘要翻译:本发明提供一种负电荷电荷控制剂,用于控制电子照相用调色剂等粉末或颗粒状物质的带电状态,其中该试剂包含具有至少一种3-羟基-ω-羧酸烷基酯的聚羟基链烷酸酯单元, 化学式(1):其中n是选自1至8的整数; R 1是H,Na或K原子,或者当存在多于一个单元时,单元之间的n和R 1相同或不同。 电荷控制剂由于聚羟基链烷酸酯的生物降解性而具有优异的电泳性质和有利于环境的作用。 其中n是选自相同化学式所示范围的整数; R 1是H原子,Na原子,K原子,或者当存在多于一个单元时,n和R 1可以不同于单元。
摘要:
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.
摘要翻译:公开了在分子中具有由化学式(1)表示的单元的聚羟基链烷酸酯。 其中R可以任选地选自氢原子,卤原子,CN,NO 2,COOR',SO 2 R“,CH 3 C 2 H 3,C 3 H 3,C(CH 3)3 H 3,C 3 H 3, 2)H和C(CH 3 3)3。 其中R'是H,Na,K,CH 3或C 2 H 5,并且R“是OH,ONa,OK, 卤原子,OCH 3或OC 2 H 5; x是任意选自1至8的整数; 条件是排除了具有氢原子作为R的聚羟基链烷酸酯,并且所有单元中的x均为2或4.还公开了通过使用具有生产聚羟基链烷酸酯的能力的微生物来生产聚羟基链烷酸酯并累积 它在细菌体内。
摘要:
A method for producing a polyhydroxyalkanoate using a microorganism capable of substantially reducing unintended monomer units and obtaining the polyhydroxyalkanoate in a high yield. A microorganism capable of synthesizing a novel polyhydroxyalkanoate having 3-hydroxy-substituted benzoylalkanoic acid as a monomer unit, using a substituted benzoylalkanoic acid as a material, is cultured in a medium containing a substituted benzoylalkanoic acid. Then, the polyhydroxyalkanoate produced in the cultured bacteria is extracted and recovered.
摘要:
A binder resin which forms a resin powdery product such as a toner for developing electrostatic latent images. The binder resin comprises a biodegradable resin comprising a polyhydroxyalkanoate produced by culturing a microorganism and having as a specific monomer unit a 3-hydroxyalkanoic acid such as 3-hydroxy-5-phenylvaleric acid. This binder resin has very good properties as a binder resin and also has a high safety to human bodies and environment. Also disclosed are a toner for developing electrostatic latent images which contains such a binder resin, and an image-forming method and an image-forming apparatus which make use of the toner.
摘要:
To provide a novel polyhydroxyalkanoate and a manufacturing method by a microorganism capable of substantially reducing unintended monomer units and obtaining the polyhydroxyalkanoate in a high yield. A microorganism capable of synthesizing a novel polyhydroxyalkanoate having 3-hydroxy-substituted benzoylalkanoic acid as a monomer unit using a substituted benzoylalkanoic acid as a material is cultured in the medium containing a substituted benzoylalkanoic acid, then the polyhydroxyalkanoate produced in the cultured bacteria is extracted and recovered.
摘要:
The present invention provides a method of effectively producing polyhydroxyalkanoate having an aromatic substituted residue in its monomer unit. In the method of producing polyhydroxyalkanoate by using microorganisms, microorganisms capable of producing polyhydroxyalkanoate are cultured in a culture medium containing at least one starting compound selected from the group consisting of substituted alkanes represented by formula (1) to produce polyhydroxyalkanoate having, in its molecule, at least one unit selected from the group consisting of 3-hydroxy-substituted alkanoate units represented by formula (2): R—(CH2)n—CH2—CH2—CH3 (1) wherein R represents a residue containing a substituted aromatic ring, and n represents any integer of 1 to 8; wherein R represents a residue containing a substituted aromatic ring, and n represents any integer of 1 to 8. In formulas (1) and (2), a residue R is as described in the specification.
摘要:
A polyhydroxyalkanoate characterized by having in the molecule a unit represented by Chemical Formula (1): wherein n may assume any one integral value within the range of from 1 to 8. Also disclosed are 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; a charge control agent, a toner binder and a toner which contain this polyhydroxyalkanoate; and an image-forming method and an image-forming apparatus which make use of the toner.