摘要:
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.
摘要:
A micro-capsulated pigment containing pigment ink being excellent in density, fineness, transparency, and coloring and color rendering properties required for ink solutions and having excellent dispersibility and dispersion stability with time due to the reduced particle size is provided. At least a color material with at least part of the surfaces of pigment particles covered with polyhydroxyalkanoate, and a medium for dispersion of the color material are used to obtain the pigment ink.
摘要:
The invention relates to a method for producing an aliphatic polyester, utilizing starch as a raw material. The invention produces an aliphatic polyester by the steps of hydrolyzing starch to obtain glucose, oxidizing the glucose to obtain gluconolactone or gluconic acid, reducing the gluconolactone or the gluconic acid to obtain caproic acid, chlorinating the caproic acid to obtain 6-chlorocaproic acid, cyclizing the 6-chlorocaproic acid to obtain &egr;-caprolactone, and executing ring-opening polymerization of the &egr;-caprolactone.
摘要:
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.
摘要:
A method for manufacturing polyhydroxyalkanoate-containing structure, at least a part of a base material surface of the structure being coated with polyhydroxyalkanoate, the method comprises the steps of immobilizing a polyhydroxyalkanoate synthase on the base material surface, synthesizing, on the base material surface, polyhydroxyalkanoate using a 3-hydroxyacyl coenzyme A to become the substrate of the synthase and the synthase and coating at least a part of the base material surface with the synthesized polyhydroxyalkanoate, wherein the synthase contains an amino acid sequence capable of binding to the base material. A polyhydroxyalkanoate-containing structure, at least a part of a base material surface of the structure being coated with a polyhydroxyalkanoate, comprises the base material, a polyhydroxyalkanoate synthase immobilized on the base material surface, and the polyhydroxyalkanoate with which at least a part of the base material surface is coated, wherein the synthase contains an amino acid sequence capable of binding to the base material.
摘要:
A polyhydroxyalkanoate containing in a molecule at least one unit represented by the chemical formula (1). The polyhydroxyalkanoate is a biodegradable plastic with enhanced melt-processability and exhibits excellent charging stability, high chargeability, and enhanced dispersibility when used as a charge control agent of a toner in an electrophotographic process. (R denotes -A1(—SO2R1)x. R1 is selected from OH, a halogen atom, ONa, OK, and OR1a. R1a and A1 are selected from a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, and a substituted or unsubstituted heterocyclic structure. Further, m and x are integers selected from 1 to 8, and when two or more units exist, each of R, R1R1a, A1, m, and x is defined as above independently for each of the units.)
摘要翻译:在分子中含有至少一个由化学式(1)表示的单元的聚羟基链烷酸酯。 聚羟基链烷酸酯是具有增强的熔融加工性的生物可降解塑料,当用作电子照相方法中的调色剂的电荷控制剂时,显示出优异的充电稳定性,高充电性和增强的分散性。 (R表示-A 1)(-SO 2 R 1 R 1) SUB>选自OH,卤素原子,ONa,OK和OR 1a。R 1a和A 1选自取代的 取代或未取代的芳香族环结构,取代或未取代的芳香族环结构,取代或未取代的杂环结构,m和x为1〜8的整数,当存在2个以上的单元时,R 1,R 2, 对于每个单元,单独地对上述独立地定义如上所述的基团,其中R 1,R 1,R 1,
摘要:
A large amount of a medium containing a volatile chlorinated organic compound (VOC) with a low concentration is passed through an adsorber filled with an adsorbent which adsorb and desorb the VOC to collect the VOC in the medium in the adsorber; a gas containing water vapor is then brought into contact with the adsorbent to desorb and discharge the VOC from the adsorber; the desorbed gas is cooled to condense the VOC and water; a small amount of the VOC with a high concentration vaporized from the condensate is further irradiated with light in the presence of chlorine to decompose the VOC; and the decomposed product is subsequently treated. This constitution can allow a large amount of the VOC with a low concentration to be irradiated with light in the presence of chlorine to efficiently treat the VOC.
摘要:
A magnetic substance-biosubstance complex structure comprises a magnetic substance-containing carrier and a biosubstance immobilized on the carrier, the biosubstance being immobilized through a spacer comprising an amino acid sequence on a surface of the carrier.
摘要:
A large amount of a medium containing a volatile chlorinated organic compound (VOC) with a low concentration is passed throuth an adsorber filled with an adsorbent which adsorb and desorb the VOC to collect the VOC in the medium in the adsorber; a gas containing water vapor is then brought into contact with the adsorbent to desorb and discharge the VOC from the adsorber; the desorbed gas is cooled to condense the VOC and water; a small amount of the VOC with a high concentration vaporized from the condensate is further irradiated with light in the presence of chlorine to decompose the VOC; and the decomposed product is subsequently treated. This constitution can allow a large amount of the VOC with a low concentration to be irradiated with light in the presence of chlorine to efficiently treat the VOC.
摘要:
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.