| Patent Number |
Title Of Patent |
Date Issued |
| RE29901 |
Catalyst for producing unsaturated carboxylic acids |
February 6, 1979 |
| A process for producing unsaturated carboxylic acids, which comprises oxidizing unsaturated aldehydes in the vapor phase in the presence of a catalyst comprising a catalytic oxide supported on an inert carrier, such catalytic oxide containing metal elements in the atomic ratio Mo:V:Cu:Cr |
| 6335406 |
Method for production of absorbent resin excelling in durability |
January 1, 2002 |
| A method for the production of (D) an absorbent resin excelling in durability, which method comprises polymerizing (A) 30% by weight to saturated concentration of (A) an aqueous water-soluble ethylenically unsaturated monomer solution containing (B) 0.005 to 5 mol % of a cross-linkin |
| 6087002 |
Water absorbent resin |
July 11, 2000 |
| A process for producing water-absorbent resins having an average particle diameter of 100 to 600 .mu.m and a particle diameter distribution of 0.35 or less by polymerizing an aqueous solution of a water-soluble ethylenically unsaturated monomer, pulverizing and sieving the polymer so |
| 5854318 |
Cement additive, method for producing the same, and cement composition |
December 29, 1998 |
| A cement additive is added to increase flowability of a cement composition and to prevent a slump loss, but those characters are insufficient, or the cement additive becomes ununiform in the cement composition and causes a trouble of the hardening inferiority.Thus, to solve the subjects, |
| 5641847 |
Oil-absorbent polymer and use therefor |
June 24, 1997 |
| A swellable oil-absorbent agent formed of a cross-linked polymer (P) obtained by polymerizing a monomer component comprising 90 to 99.999% by weight of a monomer having as a main moiety thereof an alkyl (meth)acrylate the alkyl group of which has 10 to 16 carbon atoms and possessing |
| 5628975 |
Method for purifying exhaust gas from a diesel engine |
May 13, 1997 |
| A method for purifying exhaust gases from a diesel engine is provided. The method utilizes a flow through type honeycomb catalyst having parallel through-cells and (1) a cross-sectional area at the inlet part of an exhaust gas cut by a face vertical to the direction of the through-cells |
| 5498670 |
Coating compositions containing crosslinked spherical fine particles |
March 12, 1996 |
| Disclosed herein are crosslinked spherical fine particles having good toughness, elastic properties, and chemical properties, and a process for producing the same, said fine particles being obtained by radical polymerization in the suspended state of a component [M] capable of radica |
| 5484841 |
Method for production of aqueous dispersion of long-chain alkyl graft polymer and aqueous releas |
January 16, 1996 |
| A method for the production of an aqueous dispersion of a long-chain alkyl graft polymer, which method comprises mixing an aqueous solution of a polyamine with a long-chain alkyl isocyanate and stirring the resultant mixture thereby causing reaction of said component reactants, and an |
| 5407610 |
Method for molding fiber-reinforced resin |
April 18, 1995 |
| In a method for molding a sheet which includes thermosetting resin materials reinforced with glass fiber or carbon fiber, the sheet includes a covering film always existing in a side which is not in contact with a mold face and, when the sheet and covering film are shaped along a mold |
| 5403821 |
Drilling fluid additives |
April 4, 1995 |
| This invention provides a drilling fluid containing additives composed of copolymers which are obtainable by an industrially favorable process and superior in heat-resisting property. Even though the additives are used in a relatively small amount, such an amount sufficiently prevents ch |
| 5374600 |
Oil-absorbent polymer and use therefor |
December 20, 1994 |
| A swellable oil-absorbent agent formed of cross-linked polymer (P) obtained by polymerizing a monomer component comprising 90 to 99.999% by weight of a monomer having as a main moiety thereof an alkyl (meth)acrylate the alkyl group of which has 10 to 16 carbon atoms and possessing one |
| 5338810 |
Method for production of acrylate and acrylate-containing polymer |
August 16, 1994 |
| A method for the production of an acrylate by the neutralization reaction of acrylic acid and a basic substance, comprising sequentially (A) a step of supplying acrylic acid and said basic substance to water thereby subjecting them to a neutralization reaction while constantly retaining |
| 5329026 |
Process for preparation of 2-substituted 1,4-naphthoquinone |
July 12, 1994 |
| A process for preparation of a 2-substituted-1,4-naphthoquinone which comprises oxidizing a 2-substituted naphthalene to obtain reaction products comprising a 2-substituted-1,4-naphthoquinone and a 6-substituted-1,4-naphthoquinone; adding a diene compound to the reaction products and |
| 5304324 |
Monodispersed glycol suspension of fine inorganic oxide particles having excellent dispersion st |
April 19, 1994 |
| A monodispersed glycol suspension having excellent dispersion stability at a pH within a wide range, comprising a monodispersed suspension in a glycol of spherical fine particles of an amorphous inorganic oxide having an average particle diameter of 0.15 to 5 micrometers and a relative |
| 5286699 |
Exhaust gas purifying catalyst suppressing the generation of hydrogen sulfide and method of maki |
February 15, 1994 |
| An exhaust gas purifying catalyst suppressing the generation of hydrogen sulfide obtained by coating and supporting on a honeycomb carrier of a monolithic structure a catalyst composition containing (a) activated alumina supporting platinum and/or palladium in the range of 5 to 30 we |
| 5284909 |
Amphoteric polyelectrolyte, method for production thereof, and organic sludge dehydrater |
February 8, 1994 |
| An amphoteric polyelectrolite represented by the general formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are H or alkyl, R.sup.5 is H, alkyl or w-OH substituted alkyl, HY is monobasic acid, and Z is amide. |
| 5275759 |
Zirconia sol, method for production thereof, porous ceramic-producing slurry, and porous ceramic |
January 4, 1994 |
| A highly concentrated zirconia sol is produced by a method which comprises heating an aqueous solution of a zirconium salt in the presence of urea thereby obtaining a transparent zirconia sol, concentrating the zirconium sol with an ultrafilter membrane, and subjecting the concentrated z |
| 5264495 |
Method for production of salt-resistant absorbent resin |
November 23, 1993 |
| A method for the production of a salt-resistant absorbent resin, which comprises subjecting an aqueous solution of at least one monomer component (A) selected from the group consisting of unsaturated carboxylic acids and salts thereof to aqueous solution polymerization in the presence of |
| 5262570 |
Method of producing ethylenediamines |
November 16, 1993 |
| A method of producing ethylenediamines represented by the general formula ##STR1## wherein R represents a hydrogen atom, or a methyl or ethyl group, which comprises reacting an aziridine compound of the general formula ##STR2## wherein R is as defined, with ammonia in the gaseous |
| 5254797 |
Method of treating exhaust gas |
October 19, 1993 |
| A catalyst composition including component A and component B, the component A being a carrier, preferably having a honeycomb structure, and being a single-component oxide or a multi-component composite oxide of at least one metal of titanium, silicon and zirconium, and the component B be |
| 5252184 |
Additive for production of paper |
October 12, 1993 |
| An additive for paper production, comprising an amphoteric polymeric electrolyte having as an essential component thereof a structural unit represented by the following general formula I: ##STR1## wherein n is an integer in the range of 1 to 5, R.sup.1, R.sup.2, and R.sup.3 are i |
| 5236622 |
Process for producing a monodispersed glycol suspension of fine inorganic oxide particles having |
August 17, 1993 |
| A monodispersed glycol suspension having excellent dispersion stability at a pH within a wide range, comprising a monodispersed suspension in a glycol of spherical fine particles of an amorphous inorganic oxide having an average particle diameter of 0.15 to 5 micrometers and a relative |
| 5235107 |
Method of producing ethylenediamines |
August 10, 1993 |
| A method of producing ethylenediamines represented by the general formula ##STR1## wherein R represents a hydrogen atom, or a methyl or ethyl group, which comprises reacting an aziridine compound of the general formula ##STR2## wherein R is as defined, with ammonia in the gaseous |
| 5234870 |
Zirconia sol and method for production thereof |
August 10, 1993 |
| A zirconia sol, comprising a transparent zirconia sol obtained by hydrolysis of zirconyl ammonium carbonate and a chelating agent incorporated in said transparent zirconia sol. |
| 5229488 |
Method for manufacture of an absorbent resin |
July 20, 1993 |
| An absorbent resin is produced by a method which comprises adding to 100 parts by weight of an absorbent resin powder an aqueous liquid containing 7 to 100 parts by weight of water and a reducing substance in the presence of 0.01 to 5 parts by weight of at least one additive selected fro |
| 5229487 |
Method for metered supply of material, apparatus therefor, and method for production of hydrophi |
July 20, 1993 |
| A method for metered supply of a delivered material to the next step, which method is characterized by regulating the thickness of the material on a conveyor before the material in the process of transfer on the conveyor from the incoming end thereof to the outgoing end thereof reaches t |
| 5218146 |
Process for production of acrylic acid |
June 8, 1993 |
| A process for the production of acrylic acid by the two-stage catalytic vapor-phase oxidation of propylene with molecular oxygen, the first stage for oxidizing propylene to produce mainly acrolein and the second stage for oxidizing acrolein to produce mainly acrylic acid, which process |
| 5213665 |
Process for producing 1-aminoanthraquinones |
May 25, 1993 |
| A process for producing 1-aminoanthraquinones represented by formula (C) ##STR1## wherein R.sup.1 and R.sup.2, independently from each other, denote one type selected from a hydrogen atom, an alkyl group having 1 to 4 carbon atoms and a halogen atom,which comprises converting 5-nitro |
| 5212217 |
Artificial marble from reactive thermoplastic, monomer and anhydride |
May 18, 1993 |
| This invention is directed to a setting resin composition comprising (A) a radically polymerizable monomer, (B) a thermoplastic resin soluble or dispersible in said monomer (A), (C) an epoxy resin, (D) at least one polyfunctional carboxylic acid compound selected from said group cons |
| 5211893 |
Method for molding resin reinforced with fiber and moldings produced |
May 18, 1993 |
| The method for molding a resin reinforced with fiber wherein a resin sheet reinforced with fiber is positioned juxtaposed a face of a mold, which is either one of a female mold or a male mold, and then hardened, but before molding, modifying the viscosity to different levels in different |
| 5210298 |
Method for production of acrylate and acrylate-containing polymer |
May 11, 1993 |
| A method for the production of an acrylate by the neutralization reaction of acrylic acid and a basic substance, comprising sequentially (A) a step of supplying acrylic acid and said basic substance to water thereby subjecting them to a neutralization reaction while constantly retaining |
| 5206431 |
Process for producing methacrylic acid |
April 27, 1993 |
| A process for producing methacrylic acid, which comprisesfilling a plurality of catalysts of different activities into a plurality of reaction zones which have been formed in each of the reaction tubes of a fixed bed multi-tubular reactor by dividing said reaction tube into two or more p |
| 5194515 |
Amphoteric polyelectrolite, method for production thereof, and organic sludge dehydrater |
March 16, 1993 |
| An amphoteric polyelectrolite represented by the general formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are H or alkyl, R.sup.5 is H, alkyl or w--OH substituted alkyl, HY is monobasic acid, and Z is amide. |
| 5193751 |
Coloring fine particles and toner for developing electrostatic images using the same |
March 16, 1993 |
| Coloring fine particles produced by heating spheroidal coloring fine particles with an average fine particle diameter of 1-100 .mu.m obtained by suspension polymerization to a temperature of 30.degree. to 200.degree. C., thereby causing the particles to fuse together in a block without |
| 5192452 |
Catalyst for water treatment |
March 9, 1993 |
| This invention relates to a catalyst for use in water treatment and to a method for the water treatment by the use of the catalyst. The catalyst comprises a first catalyst component e.g. the oxide of titanium, silicon, aluminum and zirconium, and a second catalyst component e.g. manganes |
| 5190815 |
Waterproofing tape comprising ethylenic sulfonate polymers |
March 2, 1993 |
| A waterproofing agent for an optical or electric cable, formed of a cross-linked macromolecular compound containing a sulfonic acid group or a salt thereof in an amount of not less than 0.5 mg. equivalent/g and a dissociating group in an amount of not less than 1.0 mg. equivalent/g, and |
| 5177260 |
Method for production of acrylic acid |
January 5, 1993 |
| A method for the production of acrylic acid by the vapor-phase oxidation of acrolein with a molecular oxygen-containing gas in the presence of a catalyst formed of an oxide or a composite oxide of a metal element composition represented by the following formula I:wherein X is at least on |
| 5169820 |
Catalyst for producing phthalic anhydride |
December 8, 1992 |
| The invention presents catalysts for producing phthalic anhydride by vapor phase catalytic oxidation of orthoxylene and/or naphthalene with molecular oxygen or gas containing molecular oxygen. The catalyst is prepared by supporting a catalytic active substance comprising 1 to 20 parts by |
| 5164459 |
Method for treating the surface of an absorbent resin |
November 17, 1992 |
| A method for treating the surface of an absorbent resin which comprises mixing (I) 100 parts by weight of an absorbent resin powder having a carboxyl group, (II) 0.01 to 30 parts by weight of a polyhydric alcohol, (III) 0 to 50 parts by weight of water and (IV) 0 to 60 parts by weight of |
| 5158689 |
Method for purification of waste water |
October 27, 1992 |
| A method for the purification of waste water by the use of a heat-exchanger type reaction vessel composed of a plurality of inner tubes and a shell defining jointly with the outer peripheries of the inner tubes a passage for the flow of a heat transfer medium, which method comprises pass |
| 5153277 |
Resin composition |
October 6, 1992 |
| A resin composition useful as a matrix resin for a composite material comprises (A) from 30-80% by weight of an amino group-containing unsaturated ester compound obtained by ring-opening addition reacting an epoxy group-containing unsaturated compound (c) with an aromatic polyamine ( |
| 5153162 |
Catalyst for the production of methacrylic acid |
October 6, 1992 |
| A catalyst for the production of methacrylic acid composed of an inert carrier and a catalytically active substance. The catalytically active substance layer being composed of oxides represented by the following formula (I)where Mo represents molybdenum, P represents phosphorus, A repres |
| 5149848 |
Process for producing 1-aminoanthraquinones |
September 22, 1992 |
| A process for producing 1-aminoanthraquinones represented by the formula (C) ##STR1## wherein R.sup.1 and R.sup.2, independently from each other, denote one type selected from a hydrogen atom, an alkyl group having 1 to 4 carbon atoms and a halogen atom,which comprises converting |
| 5149827 |
Method for handling maleimides |
September 22, 1992 |
| A method for handling a maleimide, which method comprises handling said maleimide in the presence of a stabilizer at a temperature exceeding the melting point thereof in a state kept in contact with a gas phase having a molecular oxygen content of not more than 10% by volume. |
| 5145657 |
Method for purification of gas |
September 8, 1992 |
| A catalyst for the purification of a gas containing ozone or a component of offensive odor is composed of (A) a composite oxide comprising (a) titanium and (b) at least one element selected from the group consisting of Si, Zr, and P and (B) at least one element selected from the group |
| 5145587 |
Method for treatment of waste water |
September 8, 1992 |
| A method for the treatment of waste water, which comprises wet oxidizing said waste water with a molecular oxygen-containing gas of an amount 1.0 to 1.5 times the amount thereof theoretically necessary for decomposing at least one substance selected from the group consisting of organic |
| 5140076 |
Method of treating the surface of an absorbent resin |
August 18, 1992 |
| A method of treating the surface of an absorbent resin, which comprises mixing (A) 100 parts by weight of an absorbent resin powder possessing a carboxyl group (B) 0.01 to 30 parts by weight of a cross-linking agent, (C) 0 to 50 parts by weight of water, and (D) 0 to 60 parts by weight o |
| 5140057 |
Curable resin composition |
August 18, 1992 |
| The invention relates to a curable resin composition comprising (a) grafted primary amino group-containing polymer and (b) a dialkyl oxalate which excels in workability and reactivity and features prominence in resistance to chemicals, weatherability, versatility, etc. |
| 5139980 |
Method for production of inorganic oxide particles |
August 18, 1992 |
| A method for the production of inorganic oxide particles by a procedure comprising the steps of dispersing inorganic oxide particles as seed particles in a water-containing alcohol solution thereby preparing a suspension of said seed particles and adding a hydrolyzable and condensabl |
| 5137945 |
Cement with sulfoalkyacrylate polymers |
August 11, 1992 |
| A cement dispersant having as a main component thereof at least one polymer selected from the group consisting of polymers obtained from (A) 0.1 to 100 mol % of a sulfonic acid type monomer represented by the formula I: ##STR1## wherein R stands for hydrogen atom or methyl group, X s |
