摘要:
A novel amphiphatic polymerizable vinyl monomer of the formula: ##STR1## having surface active function and crosslinking catalytic function, as well as increased amphiphatic nature. The invention also provides a preparation method of said amphiphatic polymerizable vinyl monomer, resin particles obtained by using said vinyl monomer, aqueous and organic solvent dispersion of said resin particles which are specifically useful in coating compositions.
摘要:
An electrodeposition coating composition comprising (a) a water-dispersible, electrically depositable binder resin and (b) water-insoluble, internally crosslinked polymer microparticles having a particle size from 0.01 to 2 microns, said polymer microparticles bearing on their surfaces physically adhered or covalently bound thereto an amphoionic group of the formula: ##STR1## wherein R represents an unsubstituted or substituted C.sub.1 -C.sub.6 alkylene or phenylene, A is --COOH or --SO.sub.3 H.
摘要:
Polymer particles having a small particle diameter and a narrow particle diameter distribution are obtained by a continuous polymerization method which does not accompany an increase of cohering products attaching to an inner face of a reaction vessel and an air-bubble invasion and, in which stirring of a material solution for polymerization is easy. An emulsion polymerization reaction or a suspension polymerization reaction is carried out by supplying a material solution for polymerization continuously to a clearance between coaxial double cylinders, which have stretched toward a direction crossing a horizontal plane, from the end side of the cylinders, by rotating at least one of the double cylinders round the axis and thereby, causing Taylor vortices. The polymer particles thus-formed are obtained by through the other end side of the double cylinders to the outside.
摘要:
An electrodeposition coating composition containing polymer microparticles of 0.01 to 20 microns size is disclosed. The polymer microparticles have a predetermined range of softening point, solubility parameter, refractive index or crosslinking density.
摘要:
Polymer particles having a small particle diameter and a narrow particle diameter distribution are obtained by a continuous polymerization method which does not accompany an increase of cohering products attaching to an inner face of a reaction vessel and an air-bubble invasion and, in which stirring of a material solution for polymerization is easy. An emulsion polymerization reaction or a suspension polymerization reaction is carried out by supplying a material solution for polymerization continuously to a clearance between coaxial double cylinders, which have stretched toward a direction crossing a horizontal plane, from the end side of the cylinders, by rotating at least one of the double cylinders round the axis and thereby, causing Taylor vortices. The polymer particles thus-formed are obtained by through from the other end side of the double cylinders to the outside.
摘要:
The present invention provides a method for assessing embryotoxicity of a chemical comprising: (1) a first step of measuring the expression level of one or more genes selected from among genes each comprising any of the nucleotide sequences of SEQ ID NOs: 1 to 78 and 101 to 230 and orthologous genes thereof in a sample from a non-human mammal or mammalian cell which has come into contact with a test chemical; and (2) a second step of comparing the measured value of the expression level of the gene in the sample obtained in the first step with a control value of the expression level of the gene and based on the difference assessing the level of the embryotoxicity of the test chemical in the sample; and so on.
摘要:
A transport roller includes: a roller body of which a pair of end surfaces face each other by a press work so as to be in a cylindrical shape; and a high friction layer which contains inorganic particles and is provided on a surface of the roller body. Here, the roller body is provided with a joining portion which is formed by separating the pair of end surfaces. In addition, an average particle diameter of the inorganic particle is larger than a distance between the pair of the end surfaces of the roller body on an outer peripheral surface side thereof.
摘要:
A liquid ejecting head includes a head main body capable of ejecting a liquid supplied from a liquid storage unit, and a supply member provided with a liquid supply passage for supplying the liquid from the liquid storage unit to the head main body. The supply member has a filter mounting member provided with the liquid supply passage, a supply body that supplies the filter mounting member with the liquid, and a filter provided between the filter mounting member and the supply body. The supply member is provided with an outer portion that fixes the filter mounting member, the supply body, and the filter and that is formed by integral molding.
摘要:
In a semiconductor module having the structure in which a bump electrode provided on a wiring layer is connected to a device electrode provided on a semiconductor device, connection reliability between the bump electrode and the device electrode is improved. An insulating resin layer is provided between the semiconductor device and the wiring layer. The bump electrode, formed integrally with the wiring layer and projected from the wiring layer toward the insulating resin layer, is electrically connected to the device electrode provided on the semiconductor device. Part of the height of the wiring layer on the end side in a bump connection area is lower than that of the wiring in a wiring area extending toward the side opposite to the end side.
摘要:
Provided are urethane resin particles for slush molding which make it possible that inconveniences based on the slip-down of a pigment, on the aggregation of particles of the pigment, and on other causes are removed although this coloring is coloring onto the resin particle surfaces. The present invention is urethane resin particles for slush mold which contain a urethane resin and an additive, wherein the particles have a shape factor SF1 of 101 to 200, a shape factor SF2 of 120 to 240, and a central particle diameter of 20 to 500 μm. It is preferred that the urethane resin has a concentration of urea groups of 0.5 to 10% by weight, a total of the concentration of urethane groups and that of the urea groups of 4 to 20% by weight, a melting point of 160 to 260° C. and a glass transition temperature of −65 to 0° C.