摘要:
A golf ball whose core is covered with a cover, wherein the core is constituted of a rubber composition containing polybutadiene rubber and the cover is constituted of a resin composition composed of ionomer resin and diene rubber. A golf ball cover material composition composed of ionomer resin, diene rubber and non-staining antioxidant. A method of manufacturing a golf ball cover material composition constituted by mixing/kneading ionomer resin and diene rubber.
摘要:
A radiation sensitive colored composition comprising (A) a copolymer having, as constitutional repeating units, at least ((1) a monofuctional macromonomer having the specified structure and weight-average molecular weight of 3.times.10.sup.4 or below, (2) a monomer having the specified structure and (3) a quaternary ammonium salt monomer; (B) a radiation sensitive compound; and (C) a pigment: which can provide a color filter having excellent pattern reproducibility because of its high suitablity for dispersion of fine-grain pigment and its high storage stability.
摘要:
A radiation sensitive colored composition which enables pigments to have excellent dispersibility and can have dispersion stability with a lapse of time, and forming a color filter using the foregoing composition, thereby ensuring excellent film properties, almost no development residue and satisfactory pattern reproduction in the color filter, which composition comprising (A) a copolymer which is produced by copolymerizing at least (1) a monofunctional macromonomer having a polymeric main chain comprising a repetition of at least one specified unit constituent and a particular polymerizable double bond-containing group situated at only one end of the main chain, (2) a specified monomer, (3) a quaternary ammonium salt monomer and (4) a monomer containing at least one specified acid amido group in the molecule, (B) a radiation sensitive compound and (C) a pigment.
摘要:
In a fuel filter module for introducing fuel from a fuel inlet into a casing and for removing foreign matter from the fuel by passing the fuel through a fuel member and for discharging the fuel through a fuel outlet to the outside of the casing, and the casing is formed to have a D-shaped cross section. With this construction, the outer diameter of the casing is not increased even when an accessory is assembled on the outside plane wall of the D-shaped casing. The casing accommodates a filter member of C-shaped cross section. The center of a C-shaped sealing member provided for sealing the upper edge of the filter member is offset from the center of the casing. By thus offsetting, sufficient areas for fuel inlet and outlet can be ensured without increasing the size of the casing.
摘要:
An ophthalmic apparatus comprising an observing optical system and performing alignment through the observing optical system to position a measuring system at a predetermined position in relation to an eye to be examined comprises a detecting system for detecting whether an eyelid of the eye is within a predetermined opening condition at the time of a completion of alignment, a judging system for judging whether the opening condition of the eyelid is sufficient for measurement based on detection results detected by the open eyelid detecting means, and an informing system for informing the opening condition of the eyelid based on judgement results judged by the open eyelid condition judging means.
摘要:
A method of polishing the end face of a ferrule comprises providing an optical connector having the ferrule and an optical fiber fixed to the ferrule. An abrasive sheet film is provided which comprises a resin film having a layer of alumina type particles disposed on a surface thereof. The end face of the ferrule is polished by pressing it against the abrasive sheet film and sliding the end face of the ferrule relative the abrasive sheet film while supplying an abrasive comprised of colloidal particles of SiO.sub.2 on the surface of the abrasive sheet film.
摘要:
The present invention relates to a toner for electrophotography, and an object of the present invention is to improve various characteristics of the toner for electrophotography. A charge controlling agent composition obtained either by adding carbon therein during the preparation of the charge controlling agent or by mixing the charge controlling agent with carbon in the presence of a solvent, and an electro-photographic toner containing said composition are provided. The charge controlling agent composition wherein the charge controlling agent and carbon are uniformly dispersed, has excellent dispersibility in the resin, is freed from the problems of charging unstableness and scattering, and can provide an electro-photographic toner which provides a clear copied image.
摘要:
A liquid developer for electrostatic photography comprising resin grains dispersed in a non-aqueous solvent having a volume specific resistivity of at least 10.sup.9 .OMEGA.cm, wherein the resin grains are obtained by polymerizing (a) at least one monomer selected from methyl methacrylate and ethyl methacrylate soluble in said non-aqueous solvent and (b) at least one monomer selected from acrylic acid esters and methacrylic acid esters having an alkyl group having not more than 4 carbon atoms which are soluble in the non-aqueous solvent but become insoluble therein by being polymerized, in the presence of a dispersion stabilizing resin which is dissolved or dispersed in a colloidal form in the non-aqueous solvent and which mainly comprises a graft copolymer composed of(1) at least one macromonomer (M) having a weight-average molecular weight of 1.times.10.sup.3 to 1.times.10.sup.5, and having a polymerizable double bond group bonded to one terminal of the main chain of the polymer composed of at least one of a styrene polymer component and a polymer component of formula (I) defined above, and(2) at least one monomer represented by formula (III) defined above.The liquid developer is excellent in dispersion stability, and toner images having resist with high resistivity to etching solutions can be formed in electrostatic photography.
摘要:
An optical transmission apparatus comprises an optical sender for transmitting a light intensity signal, acquired by direct modulation of light from a single mode semiconductor laser, through optical fibers, an optical amplifier for controlling transmission power through the optical fibers in accordance with a change in the dispersion characteristics of the optical fibers, and an optical receiver, connected via the optical fibers to the optical sender, for receiving the light intensity signal.
摘要:
In a method of making an optical fiber termination which includes a ferrule consisting of a cylindrical pipe having a through hole at the center, the ferrule is finished in advance to a convex spherical surface. After the optical fiber inserted into and fixed to the ferrule, the end surfaces of the ferrule and the optical fiber are together ground and shaped.