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Kuraray Co., Ltd. Patents
Assignee:
Kuraray Co., Ltd.
Address:
Kurashiki, JP
No. of patents:
878
Patents:


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18


Patent Number Title Of Patent Date Issued
6124058 Separator for a battery comprising a fibrillatable fiber September 26, 2000
A fiber of sea-islands phase separation wherein the sea component comprises a vinyl alcohol based polymer with high orientation and great crystallinity and the islands component comprises a water-insoluble cellulose based polymer with excellent absorptivity of alkaline solutions, the
6118005 Process for preparing halogenopyridine derivatives September 12, 2000
A process for preparing halogenopyridine derivatives represented by the general formula (II) ##STR1## wherein X and Y each independently represent a halogen atom, comprises reacting a halogeno-2-sulfonylpyridine derivative represented by the general formula (I) ##STR2## w
6111111 Intermediates for producing pyridine derivatives August 29, 2000
A pyridine alcohol derivative represented by General Formula III ##STR1## (where A represents a divalent organic group which may contain one to three oxygen atoms, nitrogen atoms and/or sulfur atoms, wherein A may form a 5-, 6-, 7-, or 8-membered ring together with two bonded carbon
6106952 Thermoplastic polymer composition August 22, 2000
There is provided a thermoplastic polymer composition containing (i) 100 parts of a block copolymer comprising an aromatic vinyl block and a conjugated diene block, (ii) 5 to 200 parts of a polyurethane block copolymer having a thermoplastic polyurethane block, (iii) 10 to 300 parts
6106945 Reinforcing material for kneaded and formed hydraulic material, and kneaded and formed article August 22, 2000
A reinforcing material for incorporation into a kneaded and shaped hydraulic material, comprising a fiber having a fineness of 5 d or more, an aspect ratio of from 10-500, a breaking tenacity of 5 g/d or more, an elongation (A) of from 6-20%, a flexing tenacity utilization factor (B) of
6103921 Process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole August 15, 2000
According to the present invention, provided are(1) a process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole, by reacting 3-chloro-1-isothiocyanato-1-propene with a chlorinating agent,(2) a process for the preparation of 3-chloro-1-isocyanato-1-propene, by rearranging 3-chloro-1
6101031 Lenticular lens sheet capable of reducing color shift and improving overall light team transmitt August 8, 2000
A lenticular lens sheet capable of reducing the color shift and improving the overall light beam transmittance. The lenticular lens sheet has an incident side lenticular lens on its light beam incident side surface and further has an emergent side lenticular lens on its emergent side sur
6096435 Thermoplastic polymer composition having a thermoplastic elastic polymer and a block copolymer August 1, 2000
A thermoplastic polymer composition is provided that includes 100 parts by weight of a block copolymer and/or its hydrogenate having polymer blocks of an aromatic vinyl compound and polymer blocks of a conjugated diene compound, and from 5 to 95 parts by weight of a block copolymer havin
6096393 Polyallyl alcohol gas barrier material August 1, 2000
A gas barrier material having an oxygen permeability of not higher than 30 ml.multidot.20 .mu.m/m.sup.2 .multidot.day.multidot.atm measured at 20.degree. C., 100% RH, which comprises a polymer containing not less than 30 mol % of repeating units of formula (1): ##STR1## wherein R
6086212 Panel light source device and display comprising it July 11, 2000
Provided is a panel light source device through which the light availability is increased. The luminance of light to be outputted by the device in the oblique direction that oversteps the front direction of the device is reduced. The device comprises a light source 2, a reflector 8, a
6084707 Transmission-type screen July 4, 2000
There is disclosed a large-sized transmission-type screen used for a multi-image system. If the screen expands or contracts due to variations of the ambient temperature or humidity, generation of creases or relieves is prevented. The transmission-type screen includes image sources for
6084005 Antimicrobial caries-detecting composition July 4, 2000
An antimicrobial caries-detecting composition, which comprises(i) water, a water-miscible solvent or a combination thereof, (ii) a dye capable of staining the caries-infected portions of teeth, and (iii) at least one antimicrobial agent.
6069270 Optical resolution method of (.+-.)-3,4-dihydroxybutanoic acid May 30, 2000
An optical resolution method of (.+-.)-3,4-dihydroxybutanoic acid, by reacting (.+-.)-3,4-dihydroxybutanoic acid with an optically active primary amine or secondary amine. Also a method for producing optically active 3-hydroxy-.gamma.-butyrolactone, by reacting (.+-.)-3,4-dihydroxybu
6067137 Image display apparatus with hydrophobic diffraction grating for an enlarged viewing angle May 23, 2000
An image display apparatus including an image display device in which pixels are arranged in a dot-like form and a diffraction grating having a lattice face with a water contact angle of 70.degree. or more. The diffraction grating is arranged on a display optical path of the image di
6066396 Flame-retardant polyvinyl alcohol base fiber May 23, 2000
A vinyl-alcohol-based polymer and vinyl-halide-based polymer are dissolved in a common organic solvent for them, a typical example of which is dimethylsulfoxide, to obtain a dope wherein a solution of the vinyl-halide-based polymer having a particle size of 1-50 .mu.m is present in t
6060609 Process for producing and method of crystallizing 2-azabicyclo[2.2.1]hept-5-en-3-one May 9, 2000
A process for producing 2-azabicyclo[2.2.1]hept-5-en-3-one is provided by reacting a sulfonyl cyanide represented by the general formula R-SO.sub.2 CN (in which R represents an alkyl group or a phenyl group which may have a substituent), in the presence of water and in a hydrocarbon solv
6048641 Readily fibrillatable fiber April 11, 2000
A fiber of sea-islands phase separation wherein the sea component comprises a vinyl alcohol based polymer with high orientation and great crystallinity and the islands component comprises a water-insoluble cellulose based polymer with excellent absorptivity of alkaline solutions, the
6033749 Fuel tank March 7, 2000
Disclosed herein is a fuel tank of multi-layer construction having good impact resistance as well as good barrier properties for gasoline, especially one containing methanol and MTBE.The fuel tank comprises (a) inner and outer layers of high-density polyethylene, (b) intermediate layers
6033223 Method of polymerizing photo-polymerizable composition for dental use and dental light-curing ap March 7, 2000
A method of polymerizing a photo-polymerizable dental composition with the use of a light-curing apparatus including a light source (1) for emitting a laser beam and an optical fiber (2) optically coupled with the light source (1) and having a light emitting element (5) opposite to the l
6028147 Block copolymer, process for producing the same and resin composition of the same February 22, 2000
Herein disclosed are a block copolymer having an isobutylene-based polymer block and a vinylic aromatic hydrocarbon-based polymer block and containing a styrenic unit having a halogenated saturated aliphatic hydrocarbon group on the benzene ring at 0.01 to 2 mol % on a basis of the t
6007712 Waste water treatment apparatus December 28, 1999
A waste water treatment apparatus which is compact, and excellent in durability, has a high treatment performance and can stably operate for a long time is provided. In a waste water treatment apparatus at least comprising a waste water treatment tank in which a carrier particle immo
6002464 Light diffusing sheet having a layer incorporated with light diffusing material and a layer with December 14, 1999
A light diffusing sheet including a clear film (#1) and two light diffusing layers (#2 and #3) formed consecutively thereon. The diffusing sheet is characterized in that the first light diffusing layer (#2) is a film of clear resin incorporated with a light-diffusing material, and the se
6001903 Synthetic resin powder December 14, 1999
There is disclosed a synthetic resin powder comprising a polymer made from an ethylenically unsaturated monomer or a diolefinic monomer and a polyvinyl alcohol chemically bonded through a sulfide bond at an end thereof to the surface of a particle of the polymer. Although the synthet
5994590 Process for producing 7-octen-1-al November 30, 1999
A process for producing 7-octen-1-al by isomerization of 2,7.octadien-1-ol by feeding 2,7-octadien-1-ol and hydrogen to a reaction zone in the presence of a copper catalyst while controlling the molar ratio of 2,7-octadien-1-ol to hydrogen within a range of 99/1 to 75/25, and effecti
5981811 Process for preparing polyprenols November 9, 1999
A process for the preparation of a polyprenol represented by formula (1): ##STR1## where Y and Z individually represent a hydrogen atom or are coupled together to form a carbon-carbon bond; R represents a hydrogen atom or a protective group for a hydroxyl group, and n is 0 or an inte
5981628 Thermoplastic resin molded article November 9, 1999
A thermoplastic resin molded article having gloss of at least one surface above 80%, a storage modulus in common logarithm being 7 to 8 MPa within a temperature range higher by 20.degree. C. to 100.degree. C. than the glass transition temperature, a cooling distortion ratio of 1.0 kg/cm.
5981408 Screen textile material November 9, 1999
A screen textile material for high precision and high density screen printing is made of a core and sheath type conjugate fiber in which a core component is formed of a thermotropic liquid crystalline polyester (A polymer) and a sheath component is formed by blending a flexible therm
5980883 Polymer gel for medical use November 9, 1999
Provided is a medical material useful for wound dressings or a drug delivery system, which material is safe and has high healing effects, more specifically, which is free from cytotoxicity or other side effects caused by a drug and permits the selective healing of the diseased site in a
5976433 Polyvinyl alcohol-based hollow fiber membrane and process for producing the same November 2, 1999
A polyvinyl alcohol-based hollow fiber membrane having a ratio between the size of particles of 90% rejection and that of particles of 10% rejection of not more than 5, thus proving to have a sharp fractionating property, is produced by a process which comprises, on producing a polyvinyl
5973216 Method for producing bromomethylcyclopropane October 26, 1999
A method for producing bromomethylcyclopropane is provided, comprising reacting an organic sulfonyl halide with cyclopropylmethanol in the presence of a tertiary amine in a non-protic solvent, to generate cyclopropylmethyl organic sulfonate, and reacting the resulting cyclopropylmeth
5973208 Process for producing diamines October 26, 1999
A process for producing diamines by reacting a dialdehyde with ammonia and hydrogen in the presence of a hydrogenation catalyst to produce the corresponding diamine, where a solvent comprising an alcohol is used in the reaction and the concentration of water in the reaction mixture is 5
5972501 Easily fibrillatable fiber October 26, 1999
A fiber of sea-islands phase separation wherein the sea component comprises a vinyl alcohol based polymer with high orientation and great crystallinity and the islands component comprises a water-insoluble cellulose based polymer with excellent absorptivity of alkaline solutions, the
5972465 Fastener member for molding and production of plastic molded article with fastener member molded October 26, 1999
A fastener member for molding which is a fastener tape which includes engaging elements on a top side of its substrate and also includes ridges which extend in a longitudinal direction on both edges of a back side of the substrate. The ridges project outwardly such that its outermost par
5972447 Thermoformable multilayer film and thermoformed container October 26, 1999
Disclosed herein is a thermoformable film or sheet superior in gas barrier properties, mechanical properties, and appearance, a thermoformed container produced therefrom, and a resin composition suitable therefor. A thermoformable multilayer film with a total thickness of 50-300 .mu.m,
5959701 Projection type display device September 28, 1999
A projection type display device comprising a light source for irradiating a light valve, a light valve wherein pixels are arranged in delta matrix, each pixel containing color pixels for the three primary colors and a composite color of red (R), green (G) and blue (B) being displayed on
5959142 Process for refining methacrylic acid September 28, 1999
A process for producing refined methacrylic acid comprising the steps of oxidizing methacrolein and the like catalytically in a vapor phase to form a methacrylic acid-containing gas, cooling and condensing the gas to an aqueous methacrylic acid solution, adding to the solution an organic
5955636 Process for producing 6-methyl-3-hepten-2-one and 6-methyl-2-heptanone analogues, and process fo September 21, 1999
Provided are a process for producing 6-methyl-3-hepten-2-one by cross aldol condensation carried out while each continuously adding to acetone, isovaleraldehyde and an aqueous alkali containing an alkaline substance; a process for producing a 6-methyl-2-heptanone analogue represented by
5955627 Process for the preparation of cyclopropylacetylene derivatives September 21, 1999
According to the present invention, a process for the preparation of a cyclopropylacetylene derivative represented by the following formula (III): ##STR1## is provided, which comprises reacting a cyclopropylacrylic acid derivative represented by the following formula (I): ##S
5954920 Paper comprising aromatic polyester and process for producing the same September 21, 1999
A paper comprises 5 to 100% by weight of a thermotropic aromatic polyester pulp with constituting fibers having an average fiber diameter of at least 0.1 .mu.m and less than 10 .mu.m and substantially no branches, and is obtained by a process which comprises wet forming a paper material
5934503 Closure and sealing element August 10, 1999
A closure or sealing element for containers, comprising a resin composition principally composed of a polyolefin resin (A) and a block copolymer (B) of a polymer block of an aromatic vinyl compound and an isobutylenic polymer block at a (A)/(B) weigh ratio within a range of 100/5 to 100/
5932761 Process for producing branched aldehydes August 3, 1999
It is provided a process for industrially advantageously producing a branched aldehyde represented by the formula; ##STR1## [wherein Y represents an acyl group of two or more carbon atoms; and X represents an acyloxymethyl group represented by --CH.sub.2 OY' (where Y' represents
5912193 Thermoplastic polyurethanes and molded articles comprising them June 15, 1999
Disclosed are thermoplastic polyurethanes obtainable by reacting (a) a polyester-polyol that satisfies all the following requirements (1) to (4):(1) its ester group content (number of ester bonds/number of all carbon atoms) is from 0.08 to 0.17;(2) it has hydroxyl groups of from 2.01 to 2.08
5908879 Coated metal fluoride particles and a dental composition containing coated metal fluoride partic June 1, 1999
A coated particle is described, which includes a metal fluoride particle and a polysiloxane coating on the surface of the particle. A dental composition is also described, which includes the coated particle, a polymerizable monomer, and a polymerization initiator.
5900465 Hot melt adhesive composition comprising hydrogenated block copolymers May 4, 1999
An adhesive composition suitable for a hot melt adhesive or hot melt pressure-sensitive adhesive, which comprises a block copolymer (a) and a tackifier (b), wherein said block copolymer (a) has at least one polymer block A being a hydrogenated butadiene polymer block having a 1,2-bond
5900463 Water resistant composition May 4, 1999
A composition comprising (A) polyvinyl alcohol having an amino group connected to a phenyl group and (B) at least one water resistance-imparting agent selected from polyepoxy compound, aldehyde compound, polyisocyanate compound, and water-soluble oxidizing agent; the composition exhi
5895797 Polymer compositions and usage thereof April 20, 1999
Disclosed is a polymer composition which comprises as the main components an ethylene-vinyl alcohol base copolymer (A) and a block copolymer (B) which has a polymer block containing an aromatic vinyl monomer unit and a polymer block containing an isobutylene unit, and in which a phase
5894073 Process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole April 13, 1999
According to the present invention, provided are(1) a process for the preparation of 2-chloro-5-chloromethyl-1,3-thiazole, by reacting 3-chloro-1-isothiocyanato-1-propene with a chlorinating agent,(2) a process for the preparation of 3-chloro-1-isocyanato-1-propene, by rearranging 3-chloro-1
5885720 Paper coating agent March 23, 1999
Disclosed herein is a paper coating agent which comprises a modified polyvinyl alcohol (A) containing 3 to 15 mol % of ethylene units and an alkali metal ion (B), with the ratio of component (A) to component (B) being 100:0.003 to 100:1 in parts by weight. Disclosed also herein is a
5880216 Polyvinyl alcohol and gel containing the same March 9, 1999
A polyvinyl alcohol is provided containing structural units of the following formula (I) at a molar fraction of 0.05-0.50 and the structural units of the following formula (II) at a molar fraction of 0.0001 to 0.50; ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and X are as desribed her
5876466 Suede-like artificial leather March 2, 1999
Suede-like artificial leather is described that is treated with at least one dye selected from the group consisting of sulfur dyes, vat dyes and sulfur vat dyes, and 2,2',4,4'-tetrahydroxy benzophenone. The suede-like artificial leather has excellent color resistance to light and color
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