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


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Patent Number Title Of Patent Date Issued
5875526 Female member of a hook-and-loop fastener March 2, 1999
A female member of a Hook-and-Loop fastener made of double knit goods, in which a pile is provided at least in a portion on one side A of the double knit goods. The pile contains a crimped yarn, the percentage crimp (K.sub.1) of which is not more than 15%, the single fiber fineness of
5866655 Vinyl alcohol polymer February 2, 1999
A vinyl alcohol polymer with a side chain being a hydroxyalkyl group having 2 to 20 carbon atoms is disclosed. Conventional water-soluble vinyl alcohol polymers gives, where they have a high interfacial activity, an aqueous solution with much-foaming and hence a problem when used for
5861213 Fibrillatable fiber of a sea-islands structure January 19, 1999
By dissolving a vinyl alcohol polymer (A) and an incompatible vinyl polymer (B), preferably an acrylonitrile polymer in a common solvent to prepare a spinning stock solution of a phase separation structure wherein the polymer (B) is present at particle sizes of 2 to 50 .mu.m, and wet
5859131 Resin composition and molded article of the same January 12, 1999
A resin composition containing (A) a thermoplastic polyurethane; (B) a polymer having a hydroxyl group at the end of the molecular main chain, the main chain principally comprising a conjugated diene compound unit (I) which may or may not be hydrogenated and an aromatic vinyl compound un
5851305 Washing apparatus and washing method December 22, 1998
A washing apparatus includes a washing bath in which articles to be cleaned are washed. The washing bath contains a detergent of a kind containing a nonion surface active agent and a terpene-based solvent as principal components thereof. The articles to be cleaned are, after having been
5849831 Process for producing vinyl resin December 15, 1998
There is disclosed a process for producing a vinyl resin by suspension polymerization of a vinyl compound in the presence of a suspending agent (A) which comprises using a polymerization vessel equipped with a reflux condenser and adding a polyvinyl alcohol (B) having a degree of hydroly
5847061 Process for producing polymers having terminal functional group which may be protected December 8, 1998
A process for producing polymers having terminal functional group which may be protected, comprises polymerizing a radical-polymerizable monomer with a polymerization initiator comprising at least one member selected from the group (A) consisting of thio-S-carboxylic acids represented by
5843562 LCP films having roughened surface and process therefor December 1, 1998
A film having a roughened surface. The film is made of an LCP and has surface recessions covering at least about 25% of the area of the surface. The film is made by pressing an embossing means against the film surface at a temperature about 15.degree.-75.degree. C. below the melting poin
5840992 Process for producing 6-methylheptan-2-one November 24, 1998
In order to make it possible to produce 6-methylheptan-2-one, which is useful as a material for synthesizing isophytol or as a material for synthesizing fragrances such as tetrahydrolinalool and dihydrogeraniol, efficiently and in an industrially simple manner, isovaleral and acetone
5840423 Polyvinyl alcohol-based fiber having excellent hot water resistance and production process there November 24, 1998
A high-strength and highly wet-heat-resistant polyvinyl-alcohol-based fiber--in which the crosslinking agent has hardly been oxidized by the heat at the drawing time upon preparation of the fiber, the crosslinking agent has not exhaled so much at the time of dry heat drawing, and the
5839827 Agitating element for mixing apparatus and the mixing apparatus equipped with the agitating elem November 24, 1998
There is provided a mixing apparatus having a mixing vessel which is substantially in the form of a cylinder and an agitating element, the agitating element including at least two bars and at least one connecting member which connects the bars to each other to form the agitating element
5834618 Process for the preparation of 3-amino-2-hydroxy-4-phenylbutyronitrile derivatives November 10, 1998
3-Amino-2-hydroxy-4-phenylbutyronitrile derivatives represented by the formula (3) may be prepared by reacting an aminoaldehyde derivative represented by the formula (1) with a cyanohydrin derivative represented by the formula (2) in the presence of a metallic compound, base, or acid;
5817812 Cyclopentenecarboxamide derivative, method for preparing the same and bicycloamide derivative us October 6, 1998
A cyclopentenecarboxamide derivative represented by the formula (I): ##STR1## and a method for preparing the cyclopentencarboxamide derivative. A bicycloamide derivative represented by the formula (II): ##STR2## and a method for preparing the bicycloamide derivative.
5814681 Restorative composition for hard tissue and dispensing apparatus therefor September 29, 1998
A restorative composition for hard tissue, comprising a paste (A) containing an inorganic calcium phosphate powder, a polymerizable monomer mixture and a polymerization initiator, and a paste (B) containing an inorganic calcium phosphate powder, a polymerizable monomer mixture and a
5811488 Polyvinyl alcohol powder September 22, 1998
The present invention provides a polyvinyl alcohol powder which comprises a pore having an average diameter of 0.1 to 10 .mu.m in the range of 0.05 to 0.4 cc/g.Since the PVA powder of the present invention has an excellent solubility in water, an aqueous solution thereof can easily be pr
5804270 Collapsible tube and its head September 8, 1998
A collapsible tube is obtained by heat bonding a head to a polyolefin sleeve, the head comprising a composition which comprises a polyolefin resin (A), a saponified product of ethylene-vinyl acetate copolymer (B) having a melting point of at least 135.degree. C., and a saponified pro
5800885 Blow molded polyalcohol container September 1, 1998
A blow molded multilayered container comprises a layer of a polyalcohol obtained by reduction of a polyketone comprising carbon monoxide-ethylene copolymer and a layer of a thermoplastic resin other than polyalcohol, said polyalcohol having an intrinsic viscosity of 0.3 to 3.0 dl/g, a
5798165 Porous polyurethane sheet August 25, 1998
A porous sheet is obtained by wet coagulating a polyurethane comprising a soft segment component of repeating units from a polycarbonate, those from a diethylene glycol-based polyester and those from a tetramethylene glycol-based polyester and a hard segment component of an aromatic
5792876 Process for producing acetals August 11, 1998
A process is described for producing acetals comprising reacting an aldehyde or a ketone with an alcohol in the presence of a titanium compound having an acetylacetone as a ligand, or in the presence of a compound selected from the group consisting of stannous chloride dihydrate, cer
5792809 Polyvinyl alcohol shaped article August 11, 1998
Disclosed herein is a polyvinyl alcohol shaped article which comprises a polyvinyl alcohol (A) and rubber particles (B), said rubber particles (B) comprising a rubber component having a glass transition temperature of 5.degree. C. or less and an average particle diameter of 5 .mu.m or le
5789081 Polyvinyl alcohol-based hollow fiber membrane and process for producing the same August 4, 1998
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
5780573 Thermoplastic polyurethanes and molded articles comprising them July 14, 1998
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
5776636 Method of manufacturing light-transmitting plates July 7, 1998
The present invention includes the steps of forming a stamper with a fine and delicate relief pattern formed thereon by forming a photo resist layer on a flat substrate, exposing the photo resist, developing the exposed photo resist, metallizing and electroforming the surface of the phot
5773666 Hydroformylation process June 30, 1998
Described is a process for hydroformylation of an olefinic compound, which comprises, carrying out the reaction in the presence of:a) a rhodium compound,b) a tertiary organic phosphorus compound represented by the following formula (1):wherein X.sub.1 and X.sub.2 each independently represent
5773517 Process for the production of thermoplastic resin composition June 30, 1998
A process for producing thermoplastic resin compositions, comprises mixing under melting conditions a polyester resin (I) and an addition polymer (II) having on one end thereof 0.5 to 1 group of a functional group capable of reacting with polyester resins in a ratio by weight between the
5770762 Process for producing 4-substituted-2-butenals June 23, 1998
Described is a process for producing a 4-substituted-2-butenal represented by the following formula (1); ##STR1## (wherein X represents an acyloxy group or halogen atom; R represents hydrogen atom, an aliphatic hydrocarbon group or an aromatic hydrocarbon group; and these hydroca
5770229 Medical polymer gel June 23, 1998
A medical polymer gel produced by immobilizing a drug onto a water swelling polymer gel through a cleavable group with the main chain to be cleaved via an enzymatic reaction and a spacer, and a water swelling polymer gel produced by covalently crosslinking a polysaccharide having a carbo
5766758 Fiber of ethylene-vinyl alcohol copolymer and process for production thereof June 16, 1998
A fiber of ethylene-vinyl alcohol copolymer having a specific degree of crosslinking which is obtained by acetal decomposition regeneration reaction with a specific crosslinking agent. Because of its effective degree of crosslinking, this fiber has a greatly improved resistance to st
5763718 Process for producing octadienes June 9, 1998
A process for producing octadienes comprises, on synthesis of octadienes by reacting butadiene with formic acid in the presence of a palladium catalyst, controlling the reaction pressure at not more than the vapor pressure of butadiene at the reaction temperature employed, thereby su
5763101 Polyalcohol film and laminated film comprising the same June 9, 1998
A film having a dynamic modulus of elasticity at 75.degree. C. of 10.sup.8 to 10.sup.11 dyne/cm.sup.2 and an oxygen permeability at 20.degree. C., 75% RH of not more than 5.times.10.sup.12 cc.cm/cm.sup.2.sec.cmHg comprises a polyalcohol obtained by reducing a polyketone comprising a
5756488 Composition for improving calcium metabolism May 26, 1998
A composition for improving calcium metabolism comprising, as an active ingredient, (20S,22R)-22-methyl-1.alpha.,25-dihydroxyvitamin D.sub.3 ; and a method of treating a calcium metabolism disorder in a mammal comprising administering a therapeutically effective amount of (20S,22R)-2
5754342 Video device utilizing a two-dimensional diffraction grating May 19, 1998
A two-dimensional diffraction grating (5, 14) has a plurality of grating elements arranged in two directions (X, Y) different from each other. The grating elements in one of the directions (X, Y) have a substantially uniform grating height (h) when viewed in an arbitrarily chosen section
5753755 Resin composition and molded article of the same May 19, 1998
A resin composition containing (A) an amorphous polyolefin resin and (B) a block copolymer comprising a polymer block of an aromatic vinyl compound and an isobutylene polymer block, at an (A)/(B) weight ratio within a range of 95/5 to 50/50, has remarkably improved impact resistance, wit
5753367 Disperse dye-dyeable regenerated cellulose fiber and textile products containing the fiber May 19, 1998
Novel regenerated cellulose fiber dyeable with disperse dye is disclosed. In this regenerated cellulose fiber, 10 to 40 weight % of polyester fine particles or styrene-acrylic polymer fine particles having an average particle size of 0.05 to 5 .mu.m are compounded. Products wherein the
5751478 Rear-projection screen May 12, 1998
A rear-projection screen having at least a Fresnel lens and a light-diffusing member, and is characterized by having vertical-direction light diffusion properties greater at its upper and lower end portions than at its middle portion. For example, the light-diffusing member contains
5744547 Processes for producing vinyl acetate polymer and saponified product of vinyl acetate polymer an April 28, 1998
A process for producing vinyl acetate polymers comprises, after polymerization of at least one monomer comprising vinyl acetate, adding a conjugated polyene having a boiling point of at least 20.degree. C. Saponified products of the vinyl acetate polymers obtained by this process can
5733949 Antimicrobial adhesive composition for dental uses March 31, 1998
An antimicrobial adhesive composition for dental use comprising the following polymerizable monomers: an antimicrobial monomer, an monomer containing at least one acidic group, and a monomer containing at least one alcoholic hydroxy group, in combination with water and a polymerizati
5728788 Process of producing vinyl acetate polymer March 17, 1998
The present invention provides a process of producing a vinyl acetate polymer by homopolymerization of a vinyl acetate monomer or copolymerization of a vinyl acetate monomer and another copolymerizable comonomer, wherein a polymerization initiator is an organic peroxide having a half
5724188 Lenticular lens sheet March 3, 1998
A double-faced lenticular lens sheet including at least one incident side lens formed on a first face of the double-faced lenticular lens sheet; and at least one corresponding emergent side lens formed on a second opposite face of the double-faced lenticular lens sheet; wherein light ray
5721331 Isobutylene-based polymer and process of producing the same February 24, 1998
An isobutylene-based polymer as a polymer of cationically polymerizable monomers principally composed of isobutylene or a combination of isobutylene and a styrene-series monomer, generates a molded article with outstanding properties, the isobutylene-based polymer characteristically
5717044 Suspending agent for suspension polymerization of vinyl compound February 10, 1998
A vinyl compound is polymerized under suspension polymerization conditions by polymerizing the vinyl compound in a suspension polymerization medium containing, as the suspending agent, from 0.02 to 0.2 parts by weight of a polyvinyl alcohol polymer (A) having a degree of hydrolysis rangi
5717026 Polyvinyl alcohol-based fiber and method of manufacture February 10, 1998
A polyvinyl alcohol-based fiber having a gel elastic modulus of 0.05.times.10.sup.-3 to 8.0.times.10.sup.-3 g/cm.multidot.dr, a hot water shrinkage (Wsr) of 10% or higher, and a strength of 3 g/d or higher.
5714645 Process for producing all trans-form polyprenols February 3, 1998
An all trans-form polyprenol is obtained by;(A) subjecting a 3,7-dimethyl-6-hydroxy-7-octen-1-ol derivative to five-carbon lengthening reaction m-times which comprises reacting with 2-methyl-3,3-dimethoxy-1-butene and reducing the carbonyl group of the resulting compound, to obtain an al
5710211 Process for producing vinyl alcohol polymer January 20, 1998
According to the present invention, there are provided a process for producing a vinyl alcohol polymer comprising reaction of a vinyl ester polymer (A) having an epoxy group with a compound (B) having a thiol or thioester group and hydrolysis thereof, said hydrolysis being conducted
5708103 Process for producing a polymer of vinylic compounds January 13, 1998
A process for producing a polymer of vinylic compounds comprising polymerizing at least one vinylic compound by using an initiator system comprising a compound containing, in the molecule, at least one group represented by the general formula:where each of R.sup.1 and R.sup.2 represents
5695375 Disperse dye-dyeable regenerated cellulose fiber and textile products containing the fiber December 9, 1997
Novel regenerated cellulose fiber dyeable with disperse dye is disclosed. In this regenerated cellulose fiber, 10 to 40 weight % of polyester fine particles or styrene-acrylic polymer fine particles having an average particle size of 0.05 to 5 .mu.m are compounded. Products wherein the
5693711 Resin composition December 2, 1997
There is disclosed a resin composition which comprises:(a) an .alpha.-olefin/unsaturated carboxylic acid copolymer type ionomeric resin; and(b) a block copolymer having at least one polymer block A comprising an aromatic vinyl compound and at least one polymer block B comprising a conjug
5688890 Thermoplastic polyurethane composition November 18, 1997
A thermoplastic polyurethane composition comprises a thermoplastic polyurethane and a tin compound. The tin compound is contained in an amount of 0.3 to 15 ppm as converted into tin atom based on the thermoplastic polyurethane. The thermoplastic polyurethane composition has a retenti
5688576 Fastener member for molding and production of plastic molded article with fastener member molded November 18, 1997
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
5687024 Lenticular lens sheet November 11, 1997
A lenticular lens sheet comprising lengthwise long lenticular lenses formed on the light incident-side surface and light emergent-side surface thereof, the lenticular lenses being constituted of cylindrical lenses each having a long dimension in the top and bottom direction of a screen
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