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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
5135981 Method for the production of methacrylic resin molded items August 4, 1992
The present invention is a method for the production of methacrylic type resin molded items which produces methacrylic type resin molded items having excellent mar resistance, weather resistance, heat resistance and the like bycontacting(A) a preliminary reaction product obtained by poly
5134036 Ethylene-vinyl alcohol copolymers, moldings and laminates July 28, 1992
Ethylene-vinyl alcohol copolymers wherein ethylene content is 10-70 mol % diad syndiotacticity is not less than 55 mol %, and intrinsic viscosity [.eta.] is not less than 0.05 l/g when measured with a mixed solvent of 85 weight % of phenol and 15 weight % of water at 30 20 C., which sho
5133916 Polyvinyl alcohol fiber having excellent resistance to hot water and process for producing the s July 28, 1992
Provided are a polyvinyl alcohol fiber having a specific higher order structure, obtained by having the orientation and arrangement of molecular chains forming the fiber which comprises a crystalline region and an amorphous region lie in specific ranges to thereby making the fiber have a
5132146 Method of aqueous ink printing on an ink absorbing layer being coated on a substrate July 21, 1992
The present invention relates to a method of aqueous printing on a recording medium for ink, the recording medium having an excellent ink absorbing property and a markedly excellent waterproof property, the method characterized in that the recording medium comprises a substrate conta
5132039 Cleaning compositions and applications thereof July 21, 1992
A cleaning composition which comprises dimethylcyclooctadienes is disclosed. There is further disclosed a method of cleaning printed circuit boards or printed wiring boards, which comprises: contacting the board with a composition comprising dimethylcyclooctadienes and 2-20% by weight
5122561 Disposable moldings and polymer compositions for their production June 16, 1992
Disposable moldings comprising a polymer (A) having a repeating structure unit in the main chain represented by the formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are respectively a hydrogen atom or a lower alkyl, and a polymer composition co
5118885 Process for producing octa-2,7-dien-1-ol June 2, 1992
An improved process for producing octa-2,7-dien-1-ol which comprises reacting butadiene with water in an aqueous sulfolane solution containing a carbonate and/or bicarbonate of a monodentate tertiary amine in the presence of a palladium compound and a phosphonium salt.
5118780 Polyester urethane fiber: polyester made from methyl pentane diol June 2, 1992
Provided is an elastic polyurethane fiber having excellent hot water resistance, elastic recovery at low temperatures and elongation, prepared from a polyurethane obtained by copolymerization of a high polymer diol obtained from 3-methyl-1,5-pentanediol and an aliphatic dicarboxylic acid
5118743 Methylene-vinyl alcohol copolymer composition June 2, 1992
This invention provides an ethylene-vinyl alcohol copolymer composition having specific flow characteristics in the relationship between the heating time and the extrusion rate measured with a capillary rheometer (Koka Flow Tester), and a multilayered structure utilizing the same.From th
5118487 Process for producing chlorosulfonyl isocyanate June 2, 1992
Provided is a process for producing chlorosulfonyl isocyanate by reacting sulfur trioxide with cyanogen chloride, which comprises feeding sulfur trioxide and cyanogen chloride simultaneously to the reaction zone and maintaining the temperature of the reacting zone at 10.degree. to 50
5112998 Pregnane derivatives and processes for production thereof May 12, 1992
There are provided pregnane derivatives represented by formula ##STR1## wherein A.sup.1 represents a hydrogen atom or a hydroxyl group, A.sup.2 represents a substituent such as a hydroxyl group when A.sup.1 represents a hydrogen atom, or A.sup.2 represents a hydrogen atom when A.sup.
5102950 Water soluble film April 7, 1992
Provided are water soluble films comprising a modified polyvinyl alcohol containing 2-pyrrolidone ring. The films have excellent water solubility, which can be maintained over a long period of time and under the condition of being contacted with an alkaline or acid substance, and at the
5100877 Platinum containing pullulan derivatives and pharmaceutical compositions comprising the same March 31, 1992
A pullulan derivative having one or more active sites resulting from introduction of sulfuric acid, phosphoric acid, a sulfonic acid or a carboxylic acid, wherein one hydrogen atom of the group of the formula ##STR1## occurring at said active sites is partly substituted by a group of
5100854 Phosphonium salts and processes for production of and uses for the same March 31, 1992
Novel phosphonium salts of the general formula ##STR1## wherein R.sup.1 and R.sup.2 each is a hydrogen atom or a hydrocarbon group of 1 to 12 carbon atoms which may optionally be substituted; R.sup.3 is a hydrogen atom or a hydrocarbon group of 1 to 5 carbon atoms which may optio
5094921 Multilayered structure March 10, 1992
Provided are multilayered structures comprising at least 2 layers of a layer which comprises a resin composition comprising:(A) a thermoplastic resin,(B) a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vi
5093437 Polyamide copolymers March 3, 1992
Novel polyamide copolymers having skeletons of a specific structure are disclosed. The polyamide copolymers have excellent resistance to hydrolysis, low temperature characteristics (low temperature softness), heat aging resistance and mechanical properties as compared to conventional
5091441 Dental composition February 25, 1992
The invention provides dental compositions comprising a radical-polymerizable monomer and an organic peroxide, which are dissolved in a volatile tertiary alochol. Also provided are the compositions packed in a plastic contains, having a long shelf life.
5091138 Production of wholly aromatic polyester film February 25, 1992
A wholly aromatic polyester film, (A) which is made of a wholly aromatic polyester consisting essentially of the following recurring units I and II ##STR1## wherein the aromatic ring may be optionally substituted with at least one substituent selected from the group consisting of an
5089353 Multi-layer material having gas barrier properties February 18, 1992
A multi-layer material with a layer (A) of a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 60 mol % and a degree of saponification of at least 90% and a layer (B) of a styrene-based polymer having mainly syndiotactic configuration, or a res
5085726 Method of adhesion with a sulfide group containing adhesive February 4, 1992
There is provided an adhesive comprising (a) a compound having at least one mercapto group or polysulfide group joined to a saturated carbon atom and at least one olefinic double bond and (b) a solvent which does not copolymerize with said compound or a liquid polymerizable monomer which
5082743 Resin composition and multilayered structure January 21, 1992
Provided are resin compositions comprising:(A) 60 to 95% by weight of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%,(B) 4.5 to 39.5% by weight of an ethylene-vinyl acetate copolymer havi
5077373 Polyurethane, process for its production and polyester diol used for its production December 31, 1991
Provided are a polyurethane comprising (A) a structural unit derived from polyester diol, which consists essentially of 1 to 3 members selected from the structural units (I), (II) and (III) shown below, and the structural units (IV) and (V) shown below, the molar fractions of these struc
5077046 Polyprenyl composition or compounds and process for the production thereof December 31, 1991
A polyprenyl composition consisting essentially of a mixture of polyprenyl compounds represented by the following formula ##STR1## wherein A.sub.1 represents a hydroxyl or acetyloxy group, ##STR2## represents a trans-isoprene unit, ##STR3## represents a cis-isoprene unit,
5075558 Transparent sheet-like pad with reflective grid layer to provide position information to an opti December 24, 1991
A sheet-like pad having a grid pattern constituted by X-axis grid lines and Y-axis grid lines perpendicular to the X-axis grid lines, and adapted to be placed between a document and an optical reader of a type which comprises an optical scanner for scanning the document to read an image
5071995 2-hydroxyphenylbenzotriazol compounds and the use thereof December 10, 1991
Provided are 2-hydroxyphenylbenzotriazol compounds with excellent ultraviolet absorbability and high thermal stability. They can be used as ultraviolet absorber for any polymer.
5070172 Process for producing polyurethane December 3, 1991
In the preparation of a polyurethane from a polymeric polyol and an organic polyisocyanate, by using as the polyol a polymeric polyol containing in the molecule thereof 2-methyl-1,8-octanediol residue, a novel polyurethane having excellent resistance to hydrolysis, low temperature charac
5069946 Multilayered packaging materials having high gas barrier property December 3, 1991
This invention provides a gas-barrier multilayered packaging material which comprises an outer layer of a composition comprising 55-97 wt % of an EVCOH and 45-3 wt % of a resin selected from the group consisting of polyamide, polyolefin, polyester and polycarbonate and an inner layer
5068077 Process of vacuum-air pressure drawing of a laminate containing an EVOH/polyamide copolymer November 26, 1991
A hot drawn multilayered structure including a layer of an ethylene-vinyl alcohol copolymer composition containing 70 to 95 wt % of EVOH having an ethylene content of 25 to 60 mol % and a saponification degree of at least 90%; and 5 to 30 wt % of an aliphatic copolymer polyamide containi
5066582 Method and apparatus for the measurement of analyte substances November 19, 1991
A method for measuring trace amounts of analyte substance(s), which utilize a pH electrode is disclosed. This method is by far simpler than conventional optical detecting systems. The apparatus for practicing the method is also disclosed. By the use of pH electrode, the apparatus is
5061761 Polyvinyl ester macromonomer and its uses October 29, 1991
Provided are polyvinyl ester macromonomers (A) having excellent polymerizability and highly controlled composition, structure and distribution of polymerization degree.Also provided are polyvinyl alcohol macromonomers (B) obtained by solvolysis of the above polyvinyl ester macromonomers
5058245 Fastening device and method for fixing adherend by using the same October 22, 1991
Provided is a fastening device comprising a plate-shaped article having one component of the loop and hook fastener and a protecting member provided on the same surface of the plate-shaped article where the fastener component is provided, the protecting member having a larger height than
5057631 Process for continuous production of octa-2,7-dien-1-ol October 15, 1991
Butadiene and water are reacted continuously in the presence of a solvent capable of dissolving both reactants and a palladium catalyst with the mole ratio of butadiene to the reaction product octa-2,7-dien-1-ol in the reaction mixture being maintained at 0.6 or more. By this process,
5057369 Heatsettable artificial hair and production thereof October 15, 1991
Provided is an artificial hair made of a copolyester comprising polyethylene terephthalate copolymerized with an improving compound represented by ##STR1## in an amount of 1 to 8 mol %, which can be headset for giving shapes such as curls or waves at a low temperature causing no
5053481 Wholly aromatic polyester film October 1, 1991
A wholly aromatic polyester film, (A) which is made of a wholly aromatic polyester consisting essentially of the following recurring units I and II ##STR1## wherein the aromatic ring may be optionally substituted with at least one substituent selected from the group consisting of an
5047469 Novel polyvinyl alcohol and process for producing polyvinyl alcohol by hydrolysis catalyzed by a September 10, 1991
The polyvinyl alcohol of the present invention is a partially saponified polyvinyl alcohol having a saponification degree of 70 to 98 mol % and containing a larger amount of methanol-soluble substances than that contained in polyvinyl alcohols having the same saponification degree ob
5045257 Process for producing aromatic polyester fiber September 3, 1991
A process for producing aromatic polyester fibers having a high strength and resistances to fibrillation, buckling, abrasion and fatigue. The process comprises spinning aromatic polyesters capable of forming anisotropic melts and heat treating the as-spun fibers, the heat treatment b
5041079 Method for removing human immunodeficiency virus and/or its related compounds August 20, 1991
The present invention provides removing agents comprising a solid substance with a weakly acidic or weakly alkaline surface. Since the removing agents can be used for treating body fluid of a patient by, for example, extra-corporeal circulation system thereby effectively removing human
5037703 Multilayered structure August 6, 1991
Provided are multilayered structures comprising at least 2 layers consisting of a layer of a composition (C) comprising 50 to 95 wt % of an ethylene-vinyl alcohol copolymer (A) and 50 to 5 wt % of a thermoplastic polyester (B) comprising at least 50 mol % of isophthalic acid base on the
5034451 Water-soluble binder and hot-melt binder for ceramics molding July 23, 1991
This invention provides a water-soluble binder and a hot-melt binder for ceramics molding, said binder being composed of a polyvinyl alcohol-based copolymer containing (meth)allyl group-containing nonionic monomer units or nitrogeneous group-containing nonionic monomer units.
5034281 Resin compositions and multi-layered structures utilizing the same July 23, 1991
The present invention provides resin compositions comprising a blend of two different saponified products of ethylene-vinyl acetate copolymers. The composition is much improved compared to a single EVOH in flexibility without adversely affecting the transparency and gas barrier property.
5032680 2'-deoxy-5-fluorouridine derivatives July 16, 1991
2'-Deoxy-5-fluorouridine derivatives of the formula ##STR1## wherein, R.sup.1 is hydrogen atom or an acyl group and R.sup.2 and R.sup.3 are respectively hydrogen atom, an acyl group or a group of the formula ##STR2## wherein X.sup.1 and X.sup.2 are respectively oxygen atom or sul
5015746 11.beta., 17.alpha.,21-trihydroxy-1,4-pregnadiene-3,20-dione 21-[(E,E)-3,7,11-trimethyl-2,6,10-d May 14, 1991
11.beta.,17.alpha.,21-Trihydroxy-1,4-pregnadiene-3,20-dione 21-[(E,E)-3,7,11-trimethyl-2,6,10-dodecatrienoate] of the formula ##STR1## an antiinflammatory composition thereof and a method for the production thereof.11.beta.,17.alpha.,21-Trihydroxy-1,4-pregnadiene-3,20-dione 21-[(
5012018 Polyprenyl composition of compounds and process for the production thereof April 30, 1991
A polyprenyl composition consisting essentially of a mixture of polyprenyl compounds represented by the following formula ##STR1## wherein A.sub.1 represents a hydroxyl or acetyloxy group, ##STR2## represents a trans-isoprene unit ##STR3## represents a cis-isoprene unit
4999229 Multilayered packaging materials having high gas barrier property March 12, 1991
This invention provides a gas-barrier multilayered packaging material which comprises an outer layer of a composition comprising 55-97 wt % of an EVOH and 45-3 wt % of a resin selected from the group consisting of polyamide, polyolefin, polyester and polycarbonate and an inner layer comp
4997971 Stabilized poly (.beta.-methyl-.delta.-valerolactone) March 5, 1991
Polyester polyols containing the following recurring unit derived from .beta.-methyl-.delta.-valerolactoneused to be low in stability. It has been discovered that the stability of the polyester polyols of this type can be improved by reducing the acid value to down 0.25 or lower, and tha
4992609 Phosphonium salts and processes for production of and uses for the same February 12, 1991
Novel phosphonium salts of the general formula ##STR1## wherein R.sup.1 and R.sup.2 each is a hydrogen atom or a hydrocarbon group of 1 to 12 carbon atoms which may optionally be substituted; R.sup.3 is a hydrogen atom or a hydrocarbon group of 1 to 5 carbon atoms which may optio
4990697 Process for producing homoallyl alcohols February 5, 1991
A process for producing homoallyl alcohols of the general formula (I) ##STR1## in which either A.sup.1 or A.sup.3 represents a hydrogen atom, the other represents a single bonding along with A.sup.2 ; R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are the same or different a
4990319 Process for producing ammonia and sulfur dioxide February 5, 1991
A process for producing NH.sub.3 and SO.sub.2 from ammonium sulfate, which comprises(i) reacting ammonium sulfate with a metal oxide or hydroxide at a temperature of not more than 200.degree. C. to form NH.sub.3, water and a metal sulfate and recovering NH.sub.3,(ii) decomposing the meta
4983318 Method for electric field orientation of liquid crystal polymers and oriented materials of liqui January 8, 1991
This invention relates to a method for electric field orientation of liquid crystal polymers and oriented materials of liquid crystal polymers obtained by the method. This electric field orientation method comprises applying a pulsating electric field which is predominantly unidirectiona
4977212 Adhesive resin composition, laminated material using it and resin composition containing it December 11, 1990
An adhesive resin composition useful for bonding a resin having gas barrier properties and a hydrophobic thermoplastic resin which comprises an ethylene-acrylate or methacrylate copolymer grafted with an ethylenic unsaturated carboxylic acid or its acid anhydride; and 0.02 to 0.6 equ
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