Abstract:
The invention provides a novel polyester adapted for use in a charge control agent for a toner for an electrophotographic process, having a charge stability, a high charge amount, an improved dispersibility and a biodegradability, and a producing method and an application technology therefore. According to the invention, there is provided polyhydroxyalkanoate comprising at least one unit represented by the following chemical formula in a molecule: —(O—CH(—(CH2)m—CH2-p-C6H4—CONH-A1SO2R1)CH2CO)— (wherein R1 represents OH, a halogen atom, ONa, OK or OR1a; A1 and R1a each represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic cyclic structure or a substituted or unsubstituted heterocyclic structure; m represents an integer selected from a range of 0 to 7; and R1, A1, R1a and m have the aforementioned meanings independently for each unit when plural units are present), a charge control agent containing such polyhydroxyalkanoate, a toner utilizing such charge control agent, and an image forming method and an image forming apparatus utilizing such toner.
Abstract:
To provide 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. By utilizing a vinyl group of a polyhydroxyalkanoate containing a unit having the vinyl group at a side chain thereof, a polyhydroxyalkanoate containing units having a carboxyl group, an amide group, and a sulfonic group in a molecule is induced.
Abstract:
A novel polyhydroxyalkanoate having a reactive functional group in a molecule, and a production method thereof, etc. are provided. By utilizing the vinyl group of polyhydroxyalkanoate which contains a unit having a vinyl group on a side chain, a polyhydroxyalkanoate which contains a carboxyl group and a unit having an amide group and a sulfonic acid group in a molecule is derived.
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.
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).
Abstract:
A polymer is provided in which a sulfonic group or a derivative thereof is introduced. The polymer includes a unit represented by the following chemical formula (1): wherein R represents -A1-SO2R1; A1 is selected from an alkylene group, a heterocyclic ring, an aromatic ring; and —SO2R1 is a sulfonic group or of a derivative of a sulfonic acid.
Abstract translation:提供其中引入了磺酸基或其衍生物的聚合物。 聚合物包括由以下化学式(1)表示的单元:其中R表示-A 1 -SO 2 R 2 R 1。 A 1选自亚烷基,杂环,芳环; 和-SO 2 R 1是磺酸基或磺酸衍生物。
Abstract:
To provide a toner for developing electrostatic images which is not easily cause the phenomenon of toner-spent, constituent materials are so selected that a charge control resin has hardness which is the same as the hardness of a binder resin or the charge control resin is harder than the binder resin, as measured with a scanning probe microscope in a viscoelasticity evaluation mode in respect to the binder resin and the charge control resin which are present in the particle interiors or particle surfaces of the toner.
Abstract:
A novel resin is provided which is renewable with less energy. A process for renewing the resin is also provided. The present invention includes a polymer having the repeating unit represented by Structural Formula (1) below, and a process for producing the polymer: [—P1—R—]n (1). In the formula, P1 indicates an addition polymer moiety having a continuous hydrocarbon chain as the skeleton containing no condensation system, and is a polymer or oligomer prepared by addition polymerization of one or more monomers having a double bond; R indicates a linking group constituted of a condensation system for linking the polymer moieties P; and n is a number of repeating units and is an integer of 2 or more.
Abstract translation:提供了一种新型树脂,可以以更少的能量再生。 还提供了更新树脂的方法。 本发明包括具有下述结构式(1)表示的重复单元的聚合物和聚合物的制备方法:[-P u> R - ] n < (1)。 在该式中,P 1'表示具有连续烃链作为不含缩合体系的骨架的加成聚合物部分,是通过一种或多种具有双键的单体的加成聚合制备的聚合物或低聚物 ; R表示由用于连接聚合物部分P的缩合体系构成的连接基团; n为重复单元数,为2以上的整数。
Abstract:
A novel microbial strain JMC1 (FERM BP-5960) that it is a mutant strain derived from JM1 (FERM BP-5352) constitutively expressing oxygenase, and a method for biodegrading aromatic compounds and chlorinated organic compounds by using strain JMC1 as well as a method for environmental remediation which comprises a step of biodegrading contaminant in the environment by using strain JMC1. Aromatic compounds and/or chlorinated aliphatic hydrocarbon compounds contained in the environment can be removed at a low temperature by using the novel strain JMC1 without using any inducer substances.
Abstract:
An optical recording medium of the present invention has a recording layer containing an organic coloring matter expressed by the following formula (I) or (II): ##STR1## wherein R.sub.0 through R.sub.5 each indicate a hydrogen atom or an monovalent organic residue, at least one of R.sub.0 through R.sub.3 being a fluorine-containing monovalent organic residue; m indicates 0, 1 or 2; and X.sup..crclbar. indicates an anion residue. ##STR2## wherein X.sup..crclbar. indicates an anion residue; m indicates 0, 1 or 2; and R.sub.0' and R.sub.3' are atoms forming combinations of R.sub.0' and R.sub.1', and R.sub.2', and R.sub.3' at least one of which forms, with a nitrogen atom, a fluorine-containing substituted or unsubstituted pyrrolidine ring, a fluorine-containing substituted or unsubstituted piperidine ring, a fluorine-containing substituted or unsubstituted morpholine ring, a fluorine-containing substituted or unsubstituted tetrahydropyridine ring, a fluorine-containing substituted or unsubstituted cyclohexylamine ring expressed by the formula ##STR3## and the other substituents each being a hydrogen atom or a monovalent organic residue; and R.sub.4, and R.sub.5, each indicate a hydrogen atom or a monovalent organic residue.