Abstract: Novel chromene compounds having various substituents to exhibit a high color-developing sensitivity and a high density even when dispersed in a high-molecular matrix, and exhibiting a large fading rate, less color when deteriorated, and excellent light resistance in the photochromic properties; photochromic materials containing the chromene compounds; and use thereof.
Abstract: A curable composition comprising (A) an organopolysiloxane having functional groups capable of condensation reaction at both molecular terminals thereof and (B-1) a hydrophobic silica and a hydrophilic silica. A curable composition comprising (A) an organopolysiloxane having functional groups capable of condensation reaction at both molecular terminals thereof and (B-2) a hydrophobic silica, wherein the hydrophobic silica (B-2) is thermally treated together with the organopolysiloxane (A).
March 20, 2002
Date of Patent:
April 20, 2004
Chugoku Marine Paints, Ltd., Shin-Etsu Chemical Co., Ltd.
Abstract: A chromene compound which develops yellow to red color, a high color density and a little initial color and which, when used in combination with an existing photochromic compound that exhibits blue color so as to develop a neutral tint, maintains uniformity in the color tone at the time of developing color or fading color, or exhibits a very large color fading rate.
Abstract: A method for identifying and analyzing physiopathological parameters that characterize the condition of the lower urinary tract in patients in which computer generated theoretical urodynamic flow curves are generated, manipulated and compared with curves based on measured flow data for the patient. The method provides a means to determine the physiological condition of a patient without resort to, or with only minor, invasive techniques.
August 12, 2002
Date of Patent:
April 13, 2004
Laborie Medical Technologies Corp.
Gilbert R Besson, Pierre P Nelson, Francoise A Valentini
Abstract: This invention relates to a protective headgear for use by wrestlers and other athletes who require protective covers for their ears during practice and contests. The headgear provides shock absorbency and protection for the ears and forehead in an easily adjustable and comfortable device that is also reversible from a first color to a second color and meets the requirements of international wrestling rules as promulgated by the International Federation of Associated Wrestling Styles (FILA).
Abstract: Surgical equipment for use with retractors in connection with surgery, comprising an adhesive patch (32) for fastening to a patient's skin surface, a surgical sheet (30) for partly covering a patient's body, and assistance ring (18) form positioning between the lower surface of the sheet and the upper surface of the adhesive patch, having a row of upwardly protruding gripping nipples (20) for sliding through a row of holes in the sheet and through corresponding shaft holes (26) on retractors (22) thereby being fastened to assistance rings.
Abstract: A composite metal polybasic salt containing a trivalent metal and magnesium as metal components and having a novel crystal structure, and a method of preparing the same. The invention further deals with a composite metal polybasic salt which has anion-exchanging property, which by itself is useful as an anion-exchanger, capable of introducing anions suited for the use upon anion-exchange, and finds a wide range of applications, and a method of preparing the same. The composite metal polybasic salt has a particular chemical composition and X-ray diffraction peaks, and further has a degree of orientation (Io) of not smaller than 1.5.
Abstract: Disclosed are an enteric coated formulation of a benzimidazole derivative comprising a core and a film of an enteric coating agent on the surface thereof, the core containing a complex of the benzimidazole derivative and an ion-exchange resin, and the enteric coating agent having the degree of substitution by an acidic group of less than 30%, and a method for preparation thereof.
Abstract: The pressure sensitive transferring adhesive tape which transfers adhesive agent layer alone to an adherent is widely well-known, and in this case, the adhesive agent layer applied to a supporter has to be cut after it has been transferred to the adherent. However, since the adhesive layer is coated continuously, this type has a weak point that the adhesive agent layer causes problem of stringiness and stretching and cannot be cut smoothly. In the present invention, above mentioned weak points are dissolved by coating adhesive agent layer by discontinuous island shape pattern or by making the surface of adhesive agent layer to have concave and convex shape.
Abstract: A photochromic cured product exhibiting excellent photochromic properties such as a high color density and a high fading rate, as well as excellent base material properties such as a high hardness and a large heat resistance.
Abstract: Coloring master pellets for an optical molded article which are formed from a coloring composition, comprising a transparent thermoplastic resin (component A) containing a colorant (component B), wherein the proportion of pellets having colorant concentrations which satisfy a range of 0.5X to 1.5X when the concentrations of the colorants in the pellets are indicated in terms of absorbance and the average concentration is expressed as X is at least 90%.
The coloring master pellets of the present invention have extremely small variations in the concentrations of colorants contained in the pellets. These master pellets are suitably used for obtaining an optical molded article such as an optical disk which has extremely few occurrences of color non-uniformity and color streaks and excellent electric properties.
Abstract: An oiliness agent comprising a carboxylate of a composite metal hydroxide having a chemical composition represented by the following general formula (1),
wherein, M2 indicates a divalent metal, M3 indicates a trivalent metal, A indicates an anion of an aliphatic carboxylic acid, a, x, y, and z are numbers satisfying the following formulas:
a>0, 3x+2a−y−mz=0 (wherein m is a valency of anion A), 0.3≦a/x≦2.5
n is a number not larger than 7. The oiliness agent exhibits excellent emulsifying properties such as dispersion stability and moisture retaining property without emitting odor and without a tendency of being colored, and is very useful for forming a water-in-oil emulsion which can be effectively used as a base material for cosmetics.
Abstract: Optically active compounds of the following general formula (1) useful as chiral dopant,
wherein n is an integer of 0 to 5, provided that when n is 0, A is a single bond (—) and that when n is 1 to 5, A is a single bond (—), —O—, —COO—, —Cy— or —Cy—COO— in which —Cy— is a trans-1,4-cyclohexylene group, each of X and Y is independently a hydrogen atom or a fluorine atom, B is a single bond (—), —COO—, —COO—Ph— or —Ph—COO— in which —Ph— is a 1,4-phenylene group, and C* is an asymmetric carbon. The chiral dopant of the present invention have a high helical twisting power of at least 9 and suitably have a feature that the helical pitch induced by them decreases in length with an increase in temperature so that they are advantageous for use in a nematic liquid crystal composition.
Abstract: A thermally recording sheet which has high sensitivity in color development, satisfactory background heat resistance, and a satisfactory background color. The sheet contains a dihydroxydiphenylsulfone compound represented by general formula (1) as a color developer and a sulfonamide represented by general formula (2). In the formula, R1 and R2 each represents C1-8 alkyl, alkenyl, or halogeno; and a and b each is an integer of 0 to 3. In the formula, R3 represents C1-66 alkyl or electron-attracting group; and n is an integer of 0 to 2.
Abstract: Provided are magnesium hydroxide particles having a hexagonal crystal form and having an aspect ratio (H) which satisfies the following expression (I),
(wherein H is an aspect ratio, A is an average secondary particle diameter (&mgr;m) of all of the particles measured by a laser diffraction scattering method and B is a specific surface area (m2/g) of all of the particles measured by a BET method), a flame-retardant comprising the particles, a flame-retardant resin composition comprising 100 parts by weight of a synthetic resin and a 5 to 300 parts by weight of the magnesium hydroxide particles, and a molded article therefrom. The magnesium hydroxide particles are hexagonal single crystals, the hexagonal form thereof are not necessarily required to be regular hexagonal, and the size thereof are not necessarily constant.
Abstract: A multi-color crayon or oil pastel which features excellent drawing property, vividness of color and intimate adhesion of multi-color picture in combination, and a method of preparing the same. The multi-color crayon or oil pastel comprises a continuous matrix of a crayon or oil pastel material and a plurality of kinds of granular coloring phases dispersed in the matrix, the granular coloring phases being formed of a collapsible granular material which includes a coloring matter of a hue different from that of the continuous matrix, a body, and a water-soluble or solvent-soluble high molecular material or a water-swelling clay mineral (e.g., bentonite).
Abstract: The invention provides a method for regenerating with high efficiency a deteriorated catalyst of reduced activity, said catalyst originating from a heteropolyacid catalyst containing heteropolyacid formed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt thereof, to a heteropolyacid catalyst which exhibits approximately equivalent activity level to that of the fresh catalyst. Said method comprises mixing a deteriorated catalyst and a nitrogen-containing heterocyclic compound under the conditions whereunder ammonium ions and nitrate anions are present at such ratio that the amount of total ammonium ions per mol of total nitrate anions does not exceed 1.7 mols, drying the mixture and calcining the same.
Abstract: A stretched polyamide film obtained by melt-kneading and extruding a mixed resin (Z) containing a polyamide resin (X) and a modified resin (Y) into a film followed by biaxial stretching, wherein the polyamide resin (X) is obtained from a diamine component containing not less than 70 mol % of a metaxylylenediamine and from a dicarboxylic acid component containing not less than 70 mol % of an &agr;, &ohgr;-aliphatic dicarboxylic acid having 6 to 12 carbon atoms; the modified resin (Y) is obtained by graft-modifying an ethylene-ethyl acrylate copolymer resin with a maleic anhydride; and the mixed resin (Z) contains from 80 to 99% by weight of the polyamide and from 20 to 1% by weight of the modified resin. The stretched film exhibits not only excellent transparency and gas-barring property but also excellent flexibility and shock resistance.
Abstract: The present invention provides a process for manufacturing an molded article that involves the occurrence of reduced number of gels and less corrosion of the molding equipment in high-temperature molding, particularly extrusion molding onto such substrate as paper; an extruded article; and an olefin polymer composition suitable therefor.
The olefin polymer composition comprises an olefin polymer containing 5 to 200 ppm of aluminum, as aluminum atom, 0 to not more than 1,000 ppm of a phenolic stabilizer and 50 to 2,000 ppm of a phosphoric stabilizer.
Abstract: A surgical balloon which is provided with a plurality of balloons so that a fixing property and a shielding property are simultaneously satisfied, and prevents a liquid or a gas from flowing from one area in the body to another area thereof. The surgical balloon is further provided with a balloon fixing device, a drain for draining water from the front nostril and a tube for supplying rinsing water into the nasal cavity so that a surgical operation using an endoscope is carried out inside the nasal cavity with the nasal cavity filled with a water flow. A high-pressure balloon having a fixing property and a low-pressure balloon having a shielding property are combined, and the balloon is pulled from the periphery of the front nostril so as to be secured; thus, a large amount of water supply and water drain are carried out through the front nostril.