-
公开(公告)号：JPH051055A
公开(公告)日：1993-01-08
申请号：JP14707991
申请日：1991-06-19
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , KITAGAWA TETSUJI , TADA KUNIYUKI
IPC: C07D323/06 , B01J47/12 , C08J5/20
Abstract: PURPOSE:To produce trioxane at high rate of reaction in high efficiency with little side reaction without causing the corrosion of the apparatus by contacting formaldehyde with an ion exchange fiber having sulfonic acid group. CONSTITUTION:Trioxane is produced by the cyclization trimerization of formaldehyde in the presence of a catalyst consisting of an ion-exchange fiber having sulfonic acid group (preferably having a diameter of
-
公开(公告)号：JPH05429B2
公开(公告)日：1993-01-05
申请号：JP28917788
申请日：1988-11-16
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOE TAKEHISA
-
公开(公告)号：JPH03174326A
公开(公告)日：1991-07-29
申请号：JP31404189
申请日：1989-12-01
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , TSURUMI TORU
Abstract: PURPOSE:To obtain crystallized zirconia sol in a dispersant essentially comprising dimethylformamide and/or dimethylacetoamide, and the sol soluble with polymers and suitable for producing synthetic resin containing crystallized zirconia particles. CONSTITUTION:For example, dimethylformamide and/or dimethyl acetoamide is added to water-based zirconia sol, heated and dehydrated to obtain crystallized zirconia sol dispersed in a dispersant essentially comprising dimethylformamide and/or dimethylacetoamide. The obtd. zirconia sol is suitable for producing synthetic resin containing crystallized zirconia particles.
-
公开(公告)号：JPS6479015A
公开(公告)日：1989-03-24
申请号：JP23508187
申请日：1987-09-18
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MOTO AKINORI , INOUE TAKEHISA
Abstract: PURPOSE:To obtain stable crystalline zirconia sol having minute particle diameter and eliminating secondary aggregation, by heating an aq. suspension contg. zirconium hydroxide at a specified temp. to obtain an aq. suspension contg. crystalline zirconia, by adding acid to this aq. suspension, by evaporating to dryness and by adding the produced solid lump to an aq. solvent. CONSTITUTION:The aq. suspension contg. zirconium hydroxide is heated at >=80 deg.C and kept at the heating condition until the crystallinity of the produced zirconia becomes >=80%, to obtain the aq. suspension contg. crystalline zirconia. Then, the aq. suspension is added with acid and evaporated to dryness, and then, the obtd. solid lump is added to the aq. solvent. The aq. suspension contg. zirconium hydroxide may contain hydroxide of other element able to form solid soln. with zirconia (Y is the most pref.). As the acid to be added above- mentioned, acetic acid, hydrochloric acid and nitric acid are pref. By the method above-mentioned, crystalline zirconia sol can be produced in industrial mass- production.
-
公开(公告)号：JP2003128588A
公开(公告)日：2003-05-08
申请号：JP2002235062
申请日：2002-08-12
Applicant: TORAY INDUSTRIES , SANTEN PHARMA CO LTD
Inventor： INOHARA MASAHIRO , YOSHIKAWA MASATO , TANIGUCHI TAKASHI , YOKOTA MITSURU , SHIMOYAMA NAOKI , KAMI MAKI , ARAKI MIHO , SUGIHARA YUKIKO , HORIBE YOSHITAKE , KUWANO MITSUAKI
IPC: A23L1/30 , A61K8/34 , A61K8/73 , A61K8/96 , A61K9/08 , A61K47/10 , A61K47/36 , A61P27/04 , A61P27/16 , C08K5/053 , C08L5/00 , A61K7/00
Abstract: PROBLEM TO BE SOLVED: To provide a low-viscosity liquid composition containing polysaccharides in high concentration for pharmaceutical preparations, instillations, cosmetics, or toiletries having unique functions and foods having excellent taste. SOLUTION: This composition in a low-viscosity liquid state is obtained by heating an aqueous medium containing polysaccharides such as agar-agar at high concentrations followed by cooling the medium under shearing force; thus offering pharmaceutical preparations, instillations, foods, cosmetics, toiletries, etc., having new palate feeling and/or functions. This composition is usable as a water-based pharmaceutical composition base easy to apply and hard to drip off. The instillation compounded with agar-agar as one of the polysaccharides has the effect of improving the ocular migration of a medicament therein. Further, another version of the instillation compounded with agar-agar in the form of microparticles is good at crispness because of keeping the viscosity low, also affording good feeling when applied.
-
Patent Agency Ranking
公开(公告)号：JP2002263457A
公开(公告)日：2002-09-17
申请号：JP2001064256
申请日：2001-03-08
Applicant: TORAY INDUSTRIES
Inventor： OZEKI YUJI , YOSHIKAWA MASATO
Abstract: PROBLEM TO BE SOLVED: To provide a method for selectively correcting intergranular cracks and pinholes in a zeolite film and to provide a separation method which uses the treated zeolite film. SOLUTION: A coupling agent is brought into contact with one surface of the zeolite film while water is brought into contact with the other surface.
-
公开(公告)号：JP2000086560A
公开(公告)日：2000-03-28
申请号：JP26507598
申请日：1998-09-18
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO
Abstract: PROBLEM TO BE SOLVED: To selectively hydrogenate the benzene nuclei in aromatic compound in the presence of a gas containing nitrogen monoxide by using a catalyst including iron and phosphorus. SOLUTION: Aromatic compounds (for example, toluene, ethylbenzene, xylene, diethylbenzene, chlorotoluene or the like) and a nitrogen monoxide gas are brought into contact with the catalyst including iron and phosphorus (preferably iron phosphate, iron aluminophospate), preferably in the vapor phase to effect hydroxylation thereby producing phenolic compounds. The reaction temperature is 200-450 deg.C, the composition of the reaction gas comprises the nitrogen monoxide and aromatic compounds at a molar ratio of 0.01-10, the contact ratio of the aromatic compounds to the catalyst is preferably adjusted to 0.001-1.0 mol/g catalyst.hour.
-
公开(公告)号：JPH1072461A
公开(公告)日：1998-03-17
申请号：JP22698396
申请日：1996-08-28
Applicant: TORAY INDUSTRIES
Inventor： KITAGAWA TETSUJI , YOSHIKAWA MASATO , KOIKE MASAHIRO
IPC: C07D323/06 , B01J31/10 , C07B61/00
Abstract: PROBLEM TO BE SOLVED: To enable to stably produce trioxane useful as a raw material for producing polyoxymethylene (co)polymers in a state inhibiting the initial deterioration in the activity of a trioxane synthesis catalyst by using a specific cation exchange material as the trioxane synthesis catalyst. SOLUTION: This method for producing trioxane comprises bringing (B) formaldehyde (e,g. an aqueous solution containing the formaldehyde in a concentration of 30-75wt.%) into contact with (A) a cation exchange material preliminarily treated with an aqueous solution containing formaldehyde or trioxane (e.g. in a concentration of 35-75wt.%) (preferably the cation exchange material whose acidic groups are lost in an amount of approximately 1-30mol.% based on the initially held acidic groups) preferably at a temperature of 70-150 deg.C. The method enables to prevent the clouding of the aqueous formaldehyde solution in the reaction system, prevent the lowering in the production yield of the trioxane, and inhibit the corrosion of installations.
-
公开(公告)号：JPH0827040A
公开(公告)日：1996-01-30
申请号：JP16365694
申请日：1994-07-15
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MATSUYOSHI HISASHI , MINOMIYA HIDEKAZU
Abstract: PURPOSE:To improve dealkylating activity of ethylbenzene, to actualize reduction in reaction temperature, to increase recovery ratio of xylene by suppression of side reactions for the actualization of reduction in reaction temperature and to prolong a catalytic life by isomerizing xylene containing ethylbenzene by using a specific catalyst. CONSTITUTION:This isomerizing catalyst for a xylene containing ethylbenzene comprises a catalyst having >=2g adsorption of p-xylene based on 100g zeolite in adsorbing p-xylene at 120 deg.C under vapor pressure of p-xylene at 0-2 deg.C and requiring >=2,000 minutes for adsorbing o-xylene at 120 deg.C under vapor pressure of o-xylene at 0-2 deg.C until the adsorption reaches 30 % adsorption ability of p-xylene. The catalyst is used to provide a method for isomerizing a xylene.
-
公开(公告)号：JPH0824661A
公开(公告)日：1996-01-30
申请号：JP16365894
申请日：1994-07-15
Applicant: TORAY INDUSTRIES
Inventor： YOSHIKAWA MASATO , MINOMIYA HIDEKAZU , MATSUYOSHI HISASHI
Abstract: PURPOSE:To isomerize xylene contating ethylbenzene with a catalyst, to accomplish the dealkylation of ethylbenzene and the balanced isomerization of ortho- xylene and meta-xylene into para-xylene, to control hydrogenation-decomposition of a benzene ring, and to improve the recovery rate of xylene. CONSTITUTION:The catalyst for the isomerization of xylene characterized by containing zeolite in which less than 50% of the cation sites are replaced with hydrogen ion and which has a main void size of a ten-membered ring of oxygen and the method for the isomerization of xylenes are prouded.
-
-
-
-
-
-
-
-
-
Search Results
60
records
(took 0.025 seconds)
