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| Number | Title | Issue Date |
| 6936684 | Poly (alkylene oxide) prepared in the presence of a phosphazenium salt or compound A salt useful as an active species in an organic reaction and represented by the following chemical formula (1): wherein n stands for an integer of from 1 to 8, Zn− represents an n-valent anion of an activ... | 08/30/2005 |
| 5869184 | Diguanamines and preparation process, derivatives and use thereof Provided by the present invention are novel diguanamine derivatives, led by 2,5/2,6-bis(4,6-diamino-1,3,5-triazin-2-yl)-bicyclo2.2.l!heptanes and 1,3/1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)-cyclo-hexanes, and derivatives thereof, applications of these c... | 02/09/1999 |
| 5837797 | Process for preparing a sulfur-containing urethane-based plastic lens and the lens prepared thereby A novel polythiol having four or more functional groups, a process for producing the polythiol comprising reacting thiourea with a specific compound, a sulfur-containing urethane-based resin prepared from the polythiol and a lens made of the resin. The re... | 11/17/1998 |
| 5830732 | Phytase A novel phytase is disclosed. The phytase consists essentially of a single type of subunits, and can hydrolyze a phytate to myo-inositol. A gene encoding the phytase, which is originated from Schwanniomyces occidentalis is also disclosed.... | 11/03/1998 |
| 5798422 | Aromatic hydroxycarboxylic acid resins and their use Disclosed are an aromatic hydroxycarboxylic acid resin represented by the following formula (1): ##STR1## wherein each A group is the same or different and individually represents a substituted or unsubstituted phenylene or naphthylene group, R1... | 08/25/1998 |
| 5777175 | Preparation of polyoxyalkylene polyols, polymer polyols and flexible polyurethane foams Propylene oxide is added to an active hydrogen compound in the presence of an alkali metal hydroxide catalyst in an amount of from 0.05 to 0.5 mole per mole of the active hydrogen compound at a reaction temperature of from 60° to 98° C. at a reaction pr... | 07/07/1998 |
| 5773172 | Color filter having novel dyestuff Dyestuffs represented by the below-described formula (1), that is, dyestuffs formed of a chromophoric nucleus and a bisphenol introduced therein have excellent solubility in solvents and binder resins, and can provide color filters having excellent transm... | 06/30/1998 |
| 5770683 | Preparation process of polyhydroxycarboxylic acid A preparation process of polyhydroxycarboxylic acid comprising conducting dehydration polycondensation of hydroxycarboxylic acid or an oligomer of the same in a reaction mixture containing said hydroxycarboxylic acid or the oligomer of the same and an org... | 06/23/1998 |
| 5770108 | Pyrimidine compound and liquid crystal composition and liquid crystal element using the same A novel pyrimidine compound represented by the following Formulas (1) and (2), a liquid crystal composition containing said compound and a liquid crystal element having excellent characteristics such as high speed response, orientation and high contrast r... | 06/23/1998 |
| 5763537 | Polyimide based resin composition A is a polyimide based resin molding composition comprising 100 parts by weight of crystalline polyimide having recurring structural units of the formula (1): ##STR1## and 1~50 parts by weight of crystallization accelerators selected from bisimi... | 06/09/1998 |
| 5763513 | L-lactic acid polymer composition, molded product and film A lactic acid polymer composition comprising formulating 100 parts by weight of a mixture consisting of 80-95% by weight of an L-lactic acid polymer having an L-lactic acid proportion of 75% or more and 5-20% by weight of a plasticizer selected from the g... | 06/09/1998 |
| 5759810 | Method for secretory production of protein In producing a recombinant protein in the periplasm of Escherichia coli, the productivity of the target ecombinant protein can be promoted by coexpressing glutathione reductase artificially with the target recombinant protein.... | 06/02/1998 |
| 5760187 | Purification process of a human growth hormone A human growth hormone can be purified by allowing a solution containing the human growth hormone to contact with a blue pigment-bonded carrier in order to selectively adsorb the human growth hormone, then eluting the human growth hormone with an eluant o... | 06/02/1998 |
| 5759469 | Method for preparing molded articles of syndiotactic polypropylene A molded article of a syndiotactic polypropylene having excellent transparency in which a melting point attributed to the polypropylene having the syndiotactic structure measured at a heating rate of 10° C./minute by differential scanning thermal analysi... | 06/02/1998 |
| 5756766 | Composition for optical materials and use thereof A composition for optical materials is herein disclosed which comprises the following two components (a) and (b): (a) a component containing at least one of poly isocyanates represented by the formula (1) ##STR1## wherein A is an alkanediyl group or ... | 05/26/1998 |
| 5756319 | Production process of S-phenyl-L-cysteine S-phenyl-L-cysteine can be produced in a high yield by reacting thiophenol and L-serine under the action of tryptophan synthase at a pH in a range of from 9.0 to 10.5. Purification of S-phenyl-L-cysteine obtained by this enzyme reaction can be effectively... | 05/26/1998 |
| 5753730 | Plastic lenses having a high-refractive index, process for the preparation thereof and casting polymerization process for preparing sulfur-containing urethane resin lens and lens prepared thereby One aspect of the present invention relates to a process for preparing plastic lenses having a high-refractive index comprising forming a mixture containing one or more polyisocyanate compounds; one or more active hydrogen compounds selected from the grou... | 05/19/1998 |
| 5750599 | Quinophthalone compounds and polarizing films using same Novel quinophthalone compounds, which are represented by the following formula (1): ##STR1## R1 -R5 each independently represents a hydrogen or halogen atom or a hydroxy, linear or branched alkyl, substituted or unsubstituted ... | 05/12/1998 |
| 5751483 | Color filter having polarizability The present invention relates to a color filter having polarizability, which comprises a dye having a spectral transmissibility, a dichroic dye having a polarizability, corresponding to the former dye and a base resin. The filter can be produced by coatin... | 05/12/1998 |
| 5750779 | Preparation process of acyl halide or sulfonyl halide A preparation process of acyl halide or sulfonyl halide which comprises reacting corresponding carboxylic acid or sulfonic acid with a haloiminium salt represented by the general formula (1): ##STR1## wherein R1 and R2 are same ... | 05/12/1998 |
| 5750229 | Phthalocyanine compound and optical recording medium containing it A phthalocyanine represented by the formula (1) ##STR1## wherein each of R1, R2, R3 and R4 is independently an alkyl group substituted by 0 to 5 halogen atoms and having 1 to 20 carbon atoms, an alkenyl gro... | 05/12/1998 |
| 5747518 | Substituted thiophene derivative and agricultural and horticultural fungicide containing the same as active ingredient The substituted thiophene derivative of the invention which is represented by the general formula (1) has a broad disease spectrum for a pathogenic fungus of various crops, exhibits an excellent controlling effect on disease such as gray mold, powdery mil... | 05/05/1998 |
| 5747637 | Bioabsorbable polymer and process for preparing the same A bioabsorbable, ternary block copolymer consisting essentially of (A) polylactic acid segment, (B) poly(&3xb5;-caprolactone) segment and (C) polyglycolic acid segment, preparation process of the block copolymer, and medical molded articles prepared from ... | 05/05/1998 |
| 5744653 | Method for preparing 1,3-dihydroxy-4,6-bis(-methyl-(4'-hydroxyphenyl)ethyl)benz ene A method for preparing 1,3-dihydroxy-4,6-bis-methyl--(4'-hydroxyphenyl)ethy l!benzene represented by the following formula (1): ##STR1## comprising the step of initiating a reaction of resorcin with 4-isopropenylphenol in a... | 04/28/1998 |
| 5744522 | Low gloss coating compositions A low gloss coating composition having a 60° gloss of less than about 60 which contains: a) a glycidyl group-containing acrylic copolymer; b) an aromatic polyester; and c) an isocyanurate curing agent having the formula: ##STR1## wherein R1 -R... | 04/28/1998 |
| 5744504 | Diguanamines and preparation process, derivatives and use thereof Provided by the present invention are novel diguanamine derivatives, led by 2,5/2,6-bis(4,6-diamino-1,3,5-triazin-2-yl)-bicyclo2.2.1!heptanes and 1,3/1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)-cyclohexanes, and derivatives thereof, applications of these co... | 04/28/1998 |
| 5739298 | Water-soluble azo compounds Novel azo compounds having the specific structural formula (1) or (3) set out below, water-soluble dyes containing the compounds, and polarizing films containing the water-soluble dyes: ##STR1## wherein R1 represents a hydrogen or halogen ... | 04/14/1998 |
| 5736609 | Sulfur-containing urethane-based resin composition, its resin, and optical element and lens comprising resin The present invention discloses a sulfur-containing urethane-based resin composition of the present invention is directed to a sulfur-containing urethane-based resin composition which comprises a polythiol compound represented by formula (1): ##STR1#... | 04/07/1998 |
| 5733561 | Insecticide composition and production process thereof An aqueous suspension-type microcapsule insecticide composition which is obtained by emulsifying a hydrophobic admixture of liquid pyrethroid insecticide or a pyrethroid insecticide and a high boiling point solvent, preferably an alkyl ester of phthalic a... | 03/31/1998 |
| 5730977 | Anti-VEGF human monoclonal antibody The present invention provides an anti-VEGF human monoclonal antibody capable of binding to human VEGF to neutralize its activity, a cell strain producing said human monoclonal antibody, and a vascularization inhibitor containing said human monoclonal ant... | 03/24/1998 |
| 5728780 | Method of preventing scale adhesion to the surfaces of a polymerization tank and the like In a novel method of homo- or copolymerization of vinyl chloride, a specified coating agent is applied on the surfaces of the portions which will become into contact with the vinyl chloride monomer during the polymerization process. The coating agent is i... | 03/17/1998 |
| 5728775 | Heat-resistant high-nitrile polymer compositions and process for preparing same A heat-resistant high-nitrile polymer composition obtained by the graft copolymerization of 100 parts by weight of a monomer mixture comprising 50 to 80% by weight of an unsaturated nitrile monomer, a maleimide monomer, an aromatic vinyl monomer, and a mo... | 03/17/1998 |
| 5728642 | Exhaust gas treating agent and a method of treating exhaust gas using the agent There is provided with a method of treating an exhaust gas comprising the steps of loading into a column an exhaust gas treating agent containing as a main component a metal of which surface is fluorinated previously; passing through the column the exhaus... | 03/17/1998 |
| 5719145 | Amidine derivatives and platelet aggregation inhibitor containing the same The invention relates to a substituted amidine derivative which has an excellent platelet aggregation inhibiting action on the basis of fibrinogen antagonism and is particularly excellent in effectiveness on oral administration, and the platelet aggregati... | 02/17/1998 |
| 5714534 | Resin compositions having excellent antistatic properties A resin composition having excellent antistatic properties is provided which comprises (A) 100 parts by weight of a styrene resin, (B) 3 to 35 parts by weight of a polyethylene oxide, (C) 0.1 to 10 parts by weight of a styrene-acrylonitrile-hydroxyalkyl a... | 02/03/1998 |
| 5714646 | Process for producing isopropyl alcohol A process for producing isopropyl alcohol by hydrating directly propylene and water in the presence of a strong acid solid catalyst which includes feeding continuously propylene, water which is the same as or more than propylene in terms of mole, and a sa... | 02/03/1998 |
| 5714230 | Degradable aliphatic polyester formed products Formed products such as foams, fabrics for industrial materials, filaments, nonwoven fabrics, composite materials and films which are degradable after use with ease in the natural environment are prepared by using a high molecular weight aliphatic polyest... | 02/03/1998 |
| 5710856 | Light reflective sheet and light reflector using it A light reflective sheet is here disclosed which comprises a porous resin sheet and a protective layer laminated on at least one surface of the porous resin sheet; the porous resin sheet comprises a polyolefin resin and 100 to 300 parts by weight of a fin... | 01/20/1998 |
| 5710335 | Process for preparing 3-(N,N-disubstituted amino)phenol A process for preparing a 3-(N,N-disubstituted amino)phenol is herein disclosed which comprises reacting resorcin with a primary amine represented by formula (2): R1 NH2 (2) wherein R1 ... | 01/20/1998 |
| 5710334 | Aromatic dinitro and diamino intermediates This invention relates to a novel thermoplastic and amorphous polyimide which is readily soluble in organic solvent, a novel aromatic diamino compound used for the polyimide, a preparation process thereof, a polyimide-based resin composition comprising th... | 01/20/1998 |
