| Patent Number |
Title Of Patent |
Date Issued |
| RE28850 |
Process for preparing alternating copolymer of butadiene and .alpha.-olefine and novel alternati |
June 8, 1976 |
| A process for preparing alternating copolymer of butadiene and .alpha.-olefine which comprises contacting butadiene and the .alpha.-olefine in liquid phase with a catalyst system comprising the first component of AIR.sub.3 wherein R represents a hydrocarbon radical selected from the |
| 7435782 |
ABA tri-block copolymer |
October 14, 2008 |
| An ABA tri-block copolymer represented by the following formula (1) ##STR00001## [in the formula (1), n and m are each independently an integer of 30 to 1,000]. The copolymer is a so-called ABA tri-block copolymer between 8-vinyloxytricyclo [5.2.1.0.sup.2.6] decane and n-butyl vinyl |
| 7411097 |
Thiol compound, copolymer and method for producing the copolymer |
August 12, 2008 |
| By resolving objections in the prior art, provided are a novel copolymer suitable as a coating polymers which is excellent in adhesion to a substrate and can be used suitably as the polymer for the coating film having durability against pattern collapse in the finer pattern formation |
| 7342087 |
Method for prevention of increase in particles in copolymer for semiconductor resist |
March 11, 2008 |
| A method for prevention of increase in particles in copolymer for semiconductor resist, which comprises passing, through a filter containing a resin having an amino group and/or an amide bond a copolymer solution for semiconductor resist which contains a copolymer for semiconductor r |
| 7220808 |
Thiol compound, copolymer and method for producing the copolymer |
May 22, 2007 |
| By resolving objections in the prior art, provided are a novel copolymer suitable as a coating polymers which is excellent in adhesion to a substrate and can be used suitably as the polymer for the coating film having durability against pattern collapse in the finer pattern formation |
| 7045582 |
Preparation process of copolymer for semiconductor lithography and a copolymer for semiconductor |
May 16, 2006 |
| Provided are a preparation process of a copolymer for semiconductor lithography, suited for a film forming composition used for the formation of minute patterns necessary for semiconductor fabrication, which comprises carrying out radical polymerization of at least two monomers havin |
| 6787616 |
Catalyst for olefin polymerization and process for polymerizing olefin by means thereof |
September 7, 2004 |
| A solid catalyst for olefin polymerization, which comprises a silica carrier (A) having a specific surface area of from 600 to 850 m.sup.2 /g, a pore volume of from 0.1 to 0.8 ml/g and an average particle size of from 2 to 12 .mu.m, and an organoaluminum-oxy compound (B) and a Group IVB |
| 6743863 |
Resin composition comprising ethylene-based polymers and process for its production |
June 1, 2004 |
| A resin composition comprising the following components (A), (B) and (C), wherein the content of component (A) is from 10 to 90 wt %, component (B):component (C)=from 10:1 to 1:5 (weight ratio), the intrinsic viscosity [.eta.] is in the range from 0.17 to 0.40 m.sup.3 /kg, and the densit |
| 6627714 |
Method for producing an olefin type copolymer having a cyclic structure |
September 30, 2003 |
| An olefinic copolymer having a cyclic structure is prepared by copolymerizing a) ethylene (M1) and b) dicyclopentadiene or tricyclopentadiene (M2), and, optionally c) a cyclic olefin (M3), in the presence of a catalyst which contains a metallocene compound (A) having formula [1]: H.s |
| 6605733 |
Titanium-containing solid catalyst and process for producing epoxy compound using the same |
August 12, 2003 |
| Provided are a titanium-containing solid catalyst useful for producing an epoxy compound from an olefin compound and a peroxide, and a process for producing an epoxy compound using said catalyst.The titanium-containing solid catalyst is obtainable by calcination of a titanium alkynyl alk |
| 6569800 |
Catalyst component for polymerization of olefins, polymerization catalyst and process of polymer |
May 27, 2003 |
| A metallocene compound may be used as a catalyst component for the polymerization of olefins. The compound is stable to air and moisture so that it generates no hydrogen halide by hydrolysis and is easily handled, and it has high storage stability and high catalyst activity. Specific |
| 6506946 |
Process for continuous production of acetylenediol |
January 14, 2003 |
| The present invention provides a process for producing an acetylenediol continuously by reacting a ketone with acetylene in the presence of an alkali catalyst, which process comprises continuously feeding, into a first-stage reactor, a reaction solvent, an alkali catalyst, a ketone and |
| 6479707 |
Process for producing 2-butanone and 2-butanol |
November 12, 2002 |
| The present invention provides a process for producing 2-butanone and 2-butanol under comparatively mild conditions with a decreased number of steps by direct oxidization of a hydrocarbon, which is cheaper than butenes, as a raw material using molecular oxygen such as air. The process |
| 6462158 |
Polymerizable compounds having norbornanelactone structure and polymers |
October 8, 2002 |
| Disclosed herein are polymerizable compounds represented by the following formula (1): ##STR1##wherein one of R.sup.1 and R.sup.2 represents an alkyl group, which has 1 to 4 carbon atoms and is other than a tert-butyl group, and the other represents a hydrogen atom or an alkyl group |
| 6461788 |
Polymerizable compounds having cyclohexanelactone structure and polymers |
October 8, 2002 |
| Disclosed herein are polymerizable compounds represented by the following formula (1): ##STR1##wherein R.sup.1 to R.sup.9 each independently represent a hydrogen atom, a silyl group, a cyano group, a hydroxyl group, a halogen atom or a monovalent nonpolymerizable organic substituent |
| 6455647 |
Solid catalyst for olefin polymerization and process for producing olefin polymer with the same |
September 24, 2002 |
| The present invention relates to a solid catalyst (D) for olefin polymerization comprising a magnesium-containing solid component (A) carrying thereon an organoaluminum-oxy compound (B) and a metallocene compound (C), the magnesium-containing compound (A) being obtained by heat treat |
| 6368995 |
Solid catalysts for the polymerization of olefins and process for the production of olefin polym |
April 9, 2002 |
| A solid catalyst for olefin polymerization, obtained by reacting a least one of a hydropolysiloxane compound, having the formula R.sup.1.sub.a H.sub.b SiO.sub.(4-a-b)/2, a silane compound of formula R.sup.2.sub.c Si(OH).sub.4-c, and condensates of the silane, with a compound of formula |
| 6350831 |
Process for the polymerization of olefins using a catalyst containing a novel catalyst component |
February 26, 2002 |
| A metallocene compound may be used as a catalyst component for the polymerization of olefins. The compound is stable to air and moisture so that it generates no hydrogen halide by hydrolysis and is easily handled, and it has high storage stability and high catalyst activity. Specific |
| 6323149 |
Catalyst component and catalyst containing the component for polymerization of olefins |
November 27, 2001 |
| The present invention relates to a metallocene compound as a catalyst component for the polymerization of olefins, said compound, is stable to air and moisture so that generates no hydrogen halide by hydrolysis and easily handled, and has a high storage stability and a high catalyst |
| 6258901 |
Process for producing lightly colored p-vinylphenol polymer |
July 10, 2001 |
| There is provided a process for efficiently and economically producing a polymer which is superior in transmittances of visible light and far-ultraviolet light, has a high molecular weight and is light-colored. A process for producing a light-colored vinylphenol-based polymer by subj |
| 6194344 |
Process for preparing carbonaceous material carrying ultrafinely dispersed metal |
February 27, 2001 |
| A process for the preparation of a high-softening-point pitch rich in mesopores having a softening point measured by temperature gradient method of 150.degree. C. or higher, a weight loss by heating up to 300.degree. C. of 5 wt. % or less and mesopores of 100 mm.sup.3 /g or greater, in t |
| 5959051 |
Process for preparing vinylphenol polymers and stabilized compositions of vinylphenol-containing |
September 28, 1999 |
| Vinylphenol polymers are useful materials having many applications, vinylphenol polymers possessing an appropriate molecular weight corresponding to each of the applications are desired. However, it is very difficult to control the molecular weight of vinylphenol polymers, because vi |
| 5945544 |
Process for production of N-vinyllactam |
August 31, 1999 |
| A process for producing an N-vinyllactam by reacting a lactam with acetylene in the presence of a particular catalyst (an alkali metal alcoholate between an alicyclic alcohol and an alkali metal) in a nonaqueous system at an acetylene partial pressure of 0 to 10 kg/cm.sup.2 .multidot |
| 5929204 |
Process for removing metals from vinylphenol-type polymers |
July 27, 1999 |
| Vinylphenol-type polymers are useful materials and are used in many fields such as photoresist, packaging material for IC, printed circuit board, lense, etc. When the polymers are used in an electronic field such as photoresist and packaging material for IC, it is desired to reduce metal |
| 5783047 |
Heat integrated distillation column |
July 21, 1998 |
| A monotube or multitube 2 is coupled to a body shell 1 via tube plates 3a and 3b at both ends, so that a tube interior 4 and a tube exterior 5 of the monotube or multitube 2 are isolated from each other. A difference is made in operating pressure between the tube interior 4 and the tube |
| 5736030 |
Process for manufacturing fine particles of pitch with a high softening point |
April 7, 1998 |
| A process for manufacturing fine particles or powder of pitch with a high softening point from a heavy oil raw material which is liquid at an ambient temperature or pitch having a relatively low softening point is disclosed. Fine particles of pitch with a high softening point are useful |
| 5663257 |
Alkenyl-substituted bisnadimides, process for manufacturing the same, process for curing the sam |
September 2, 1997 |
| An alkenyl-substituted bisnadimide represented by the following formula [1]: ##STR1## [wherein R.sup.1 and R.sup.2 individually represent a hydrogen atom or a methyl group, and E is an alkylene.multidot.phenylene group or an alkylene.multidot.phenylene.multidot.alkylene group rep |
| 5663256 |
Thermosetting aqueous-type emulsion of nadimides |
September 2, 1997 |
| A thermosetting aqueous-type emulsion of nadimide is disclosed. The emulsion comprises 1-70% by weight of an alkenyl-substituted nadimide, 0.1-20% by weight of protective colloid and/or surface-active agent and balance water. The emulsion is especially useful for making a paint, a co |
| 5608131 |
Pentacyclic hydrocarbon compound and halogenated pentacyclic hydrocarbon compound, and preparati |
March 4, 1997 |
| A process for the preparation of the compound of the formula ##STR1## comprising dimerizing norbornadiene in the presence of N-methylpiperidine and a combined catalyst of (1,5-cyclooctadiene)(1,3,5-cyclooctatriene)-ruthenium and N,N-dimethylacrylamide. |
| 5527751 |
Polymerization catalyst and method for producing polyolefin or olefin block copolymer using the |
June 18, 1996 |
| A polymerization catalyst comprising a reaction product of an organic rare earth metal compound of the formula (I),(wherein in the formula (I), Cp is a substituted or unsubstituted cyclopentadienyl group, indenyl group, fluorenyl group or their derivatives, or a multidentate coordination |
| 5521260 |
Thermosetting resin composition |
May 28, 1996 |
| A thermosetting resin composition comprising compounds (A) an alkenyl-substituted nadimide, (B) a compound having at least one vinyl group or cyclic olefin, or both and (C) a phenol resin, and optionally (D) at least one polymerization catalyst selected from the group consisting of o |
| 5476973 |
Stable m-vinylphenol composition, and methods of stabilizing and purifying m-vinylphenol |
December 19, 1995 |
| Disclosed herein are a stable m-vinylphenol composition comprising m-vinylphenol and tolylene-2,4-diamine and/or N,N-dimethyl-p-phenylenediamine added thereto, a method of stabilizing m-vinylphenol, which comprises adding tolylene-2,4-diamine and/or N,N-dimethyl-p-phenylenediamine to |
| 5369002 |
Method of detecting injured nuclear DNA |
November 29, 1994 |
| An easy method for detecting injured cell nuclear DNA is provided which does not suffer from "pseudo-positive" staining. The method comprises the steps of subjecting a pathological tissue specimen to acid-hydrolysis to selectively hydrolyze any injured DNA thereby to form single-stranded |
| 5321177 |
Process for the vapor-phase thermal cracking of dicyclopentadiene and a process for the manufact |
June 14, 1994 |
| Recently, as a process for manufacturing cyclopentadiene resin-shaped articles, an attention has been given to reaction injection molding (RIM). To conduct RIM, it is necessary to use high purity dicyclopentadiene (DCPD) as the raw material. Vapor-phase thermal cracking of DCPD is us |
| 5304692 |
Catalyst composition for disproportionation of olefins and process for disproportionation of ole |
April 19, 1994 |
| A disproportionation catalyst for olefins and a process for disproportionation of olefins using said catalyst are disclosed. The catalyst is a mixture of one part by weight of a first catalyst component comprising silica gel carrying thereon a tungsten oxide or its precursor and a Gr |
| 5288880 |
Process for the manufacture of maleic anhydride |
February 22, 1994 |
| The present invention provides a process for the manufacture of maleic anhydride by the vapor phase catalytic oxidation of n-butane with molecular oxygen by the use of a specially prepared phosphorus vanadium-oxygen composite catalyst containing specific kind of a divalent metal. The |
| 5288850 |
Process for removing metals from vinylphenol polymers |
February 22, 1994 |
| The present invention provides an easily employed and economical process for removing substantially all of the metals from vinylphenol polymers by dissolving the vinylphenol polymer in a solvent and contacting the solution with a strong acidic cation exchange resin. In this way, viny |
| 5284930 |
Process for purifying vinylphenol polymers for use as photoresist materials |
February 8, 1994 |
| Recently, vinylphenol polymers have received special attention as materials for photoresists, since these materials have excellent transmittance of deep ultraviolet light in the neighborhood of 248 nm. Although particularly useful in this regard, vinylphenol polymers usually contain |
| 5240613 |
Process for regenerating clogged filters |
August 31, 1993 |
| When preparing carbon artefacts from heavy oils of petroleum or coal origin, removal of undesirable components or recovery of desirable components from raw materials or intermediates is usually required so as to improve the quality of the final products. Such removal or recovery oper |
| 5206358 |
Process for manufacturing petroleum resin |
April 27, 1993 |
| A process for manufacturing a petroleum resin is disclosed. The process comprises, polymerizing a petroleum fraction containing unsaturated hydrocarbons in the presence of Friedel-Crafts catalyst, and washing the polymerized product with water or an alkaline solution in the presence of |
| 5182011 |
Process for preparing pitches |
January 26, 1993 |
| Commercially attractive continuous processes for the preparation of mesophase pitches for manufacturing high-performance carbon fibers are disclosed. One feature resides in that conversion of a pitch into a mesophase pitch is conducted continuously by using a unique continuous disper |
| 5091072 |
Process for preparing pitches |
February 25, 1992 |
| Commercially attractive continuous processes for the preparation of mesophase pitches for manufacturing high-performance carbon fibers are disclosed. One feature resides in that conversion of a pitch into a mesophase pitch is conducted continuously by using a unique continuous disper |
| 5082900 |
Opacified molded product |
January 21, 1992 |
| The present invention relates to an opacified molded product composed mainly of a polypropylene resin. More particularly, according to the present invention, there are provided an opacified stretched molded product having a total light transmittance of 50% or less and a density of 0. |
| 4988791 |
Non-linear phosphazene polymer having schiff base structures, process for the preparation thereo |
January 29, 1991 |
| A novel phosphazene polymer having Schiff base structures is disclosed. The polymer is a condensation reaction product of a cyclic phosphonitrilic compound represented by the general formula (I): ##STR1## (wherein n is an integer 3 or 4, and 2n A's are independently selected from |
| 4968764 |
Rubber compounding material and composition |
November 6, 1990 |
| A rubber compounding material incorporating a cyclopentadiene-based pertroleum resin prepared by thermally copolymerizing 100 parts by weight of a cyclopentadiene-based feed or dicyclopentadiene-based feed with about 5 to 100 parts by weight of an .alpha.-olefin having from 6 to 16 carbo |
| 4952639 |
Novel hydrogenated petroleum resin and process for preparing the same |
August 28, 1990 |
| A hydrogenated petroleum resin is provided, which features excellent heat stability and good compatibility with polar polymers. The resin provides an adhesive compound in combination with such a polar polymer, exhibiting an outstanding adhesion capability. The resin is prepared by co |
| 4927979 |
Process for the preparation of p-ethylphenol |
May 22, 1990 |
| A very simple process for preparing p-ethylphenol is disclosed. It is only necessary to contact phenol with an ethylating agent in vapor phase in the presence of a specific catalyst. The catalyst can be obtained by incorporating one or more alkoxysilanes to a crystalline aluminosilicte |
| 4927885 |
Polypropylene resin compositions |
May 22, 1990 |
| Polypropylene resin compositions suitable for producing polypropylene films with excellent properties are disclosed. The compositions can provide polypropylene films having very excellent transparency, excellent heat-sealability and good anti-blocking property. Such characteristics are |
| 4925547 |
Process for producing pitch for the manufacture of high-performance carbon fibers together with |
May 15, 1990 |
| A process for co-production of a pitch for the manufacture of HP carbon fibers and a pitch for the manufacture of GP carbon fibers is proposed. The pitch for the manufacture of GP carbon fibers is prepared from the spent fraction not used in the production of an optically anisotropic |
| 4874502 |
Method of purifying coal tars for use in the production of carbon products |
October 17, 1989 |
| The unwanted components from coal tars should be removed at a certain stage of the process for producing homogeneous spinning pitches which are suitable for use in the production of high-performance carbon fibers from coal tars. The unwanted components can be eliminated from coal tars in |
