Patents Assigned to Kawaken Fine Chemicals Co., Ltd.
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Patent number: 10294384Abstract: The present invention aims to provide a fluororesin-aluminum oxide mixed dispersion wherein both fluororesin particle and aluminum oxide particle uniformly float and disperse in an aqueous solvent. The fluororesin-aluminum oxide mixed dispersion is obtained by mixing aqueous dispersion of fluororesin particle and aluminum oxide particle sol, wherein both the fluororesin particle and the aluminum oxide particle float and disperse, and wherein the dispersion state is stably maintained for three days or more. A solid product obtained by evaporation and scattering of the solvent from the above-described fluororesin-aluminum oxide mixed dispersion has a heat resistance of not less than 330° C.Type: GrantFiled: June 12, 2017Date of Patent: May 21, 2019Assignees: JAPAN MATEX CO., LTD., Kawaken Fine Chemicals Co., Ltd.Inventors: Katsuro Tsukamoto, Yuzo Nakamura, Yuhi Hosoi, Yosuke Kondo, Naofumi Nagai, Fujio Mizukami
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Publication number: 20180163073Abstract: The present invention aims to provide a fluororesin-aluminum oxide mixed dispersion wherein both fluororesin particle and aluminum oxide particle uniformly float and disperse in an aqueous solvent. The fluororesin-aluminum oxide mixed dispersion is obtained by mixing aqueous dispersion of fluororesin particle and aluminum oxide particle sol, wherein both the fluororesin particle and the aluminum oxide particle float and disperse, and wherein the dispersion state is stably maintained for three days or more. A solid product obtained by evaporation and scattering of the solvent from the above-described fluororesin-aluminum oxide mixed dispersion has a heat resistance of not less than 330° C.Type: ApplicationFiled: June 12, 2017Publication date: June 14, 2018Applicants: JAPAN MATEX CO., LTD., Kawaken Fine Chemicals Co., Ltd.Inventors: Katsuro Tsukamoto, Yuzo Nakamura, Yuhi Hosoi, Yosuke Kondo, Naofumi Nagai, Fujio Mizukami
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Publication number: 20130338055Abstract: The object of the present invention is to provide foam booster which the speed of lathering is excellent by using together with foaming surfactant such as anionic surfactants, nonionic surfactants, amphoteric surfactants, dipolar-ionic surfactants, semipolar surfactants and cationic surfactants, a detergent composition containing the same. The present invention is a foam booster comprises aliphatic amine alkylene oxide adduct represented by the general formula (1): [wherein R1 is an alkyl group having 6 to 10 carbon atoms, A1O and A2O represent an oxyethylene group and/or an oxypropylene group and independently from each other, m and n are each independently a whole number more than 0, with 1?m+n?2.Type: ApplicationFiled: November 26, 2012Publication date: December 19, 2013Applicant: KAWAKEN FINE CHEMICALS CO., LTD.Inventors: Shou OOSHIDA, Hiroki SUDA
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Publication number: 20110206919Abstract: The present invention provides a porous alumina self-supporting film which has a sufficient strength to be used as a self-supporting film, is flexible and has a high transparency; an alumina sol that is composed of fibrous or needle-like boehmite particles dispersed in a solution and that has a high storage stability; and methods for producing such a film and such an alumina sol. More specifically, the invention provides a porous alumina self-supporting film which is composed of a collection of fibrous or needle-like alumina hydrate particles or alumina particles having an average breadth of 1 to 10 nm, an average aspect ratio (length/breadth) of 30 to 5,000 and an average length of 100 to 10,000 nm, has an orientation, has a pore distribution with a pore diameter dpeak of 0.Type: ApplicationFiled: October 29, 2009Publication date: August 25, 2011Applicants: KAWAKEN FINE CHEMICALS CO., LTD., NATIONAL INSTIT. OF ADV. INDUSTRIAL SCI. AND TECH.Inventors: Naofumi Nagai, Fujio Mizukami
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Patent number: 7138365Abstract: HYDROXYALKYL polyhydric alcohol ether compounds of the general formulae (I) and (II) have excellent thickening effect and stability at low temperature, are useful as a thickening agent usable for the preparation of liquid detergents, can be produced by a condensation reaction of 1,2-epoxyalkanes of the formula (III) with aliphatic diols of the formula (IV), and are usable for the production of liquid detergent compositions, together with various surfactants (except for cationic surfactants), particularly sulfur atom-containing anionic surfactants or dipolar-ionic surfactantsType: GrantFiled: July 19, 2002Date of Patent: November 21, 2006Assignee: Kawaken Fine Chemical Co., Ltd.Inventor: Tomohiro Murayama
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Patent number: 7067471Abstract: A refined product of a polyoxypropylene fatty acid isopropanolamide surfactant, having a high stability in storage and a very small change in smell thereof, is obtained by heat-treating an addition-reaction mixture prepared from a compound of the formula (III) and propylene oxide in a molar amount of 0.5 to 10 times that of the compound of the formula (III), and containing the target compound of the formula (I) and an oxazoline compound of the formula (II) produced as a by-product with water or an alkaline aqueous solution at 50 to 100° C., to hydrolyze the oxyazoline compound and to control the content of the oxyazoline compound to 0.1% by mass or less; and a detergent composition containing the refined product in a content of 1 to 50% by mass, exhibits enhanced thickening, foaming, emulsifying, dispersing and dissolving properties. [R1?C1–C19alkyl or alkenyl group, X=oxypropylene group, n=average number of addition-reacted X groups of 0.Type: GrantFiled: April 5, 2005Date of Patent: June 27, 2006Assignee: Kawaken Fine Chemicals Co., Ltd.Inventors: Toyofumi Ito, Hiroshi Higuchi
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Publication number: 20050187135Abstract: A refined product of a polyoxypropylene fatty acid isopropanolamide surfactant, having a high stability in storage and a very small change in smell thereof, is obtained by heat-treating an addition-reaction mixture prepared from a compound of the formula (III) and propylene oxide in a molar amount of 0.5 to 10 times that of the compound of the formula (III), and containing the target compound of the formula (I) and an oxazoline compound of the formula (II) produced as a by-product with water or an alkaline aqueous solution at 50 to 100° C., to hydrolyze the oxyazoline compound and to control the content of the oxyazoline compound to 0.1% by mass or less; and a detergent composition containing the refined product in a content of 1 to 50% by mass, exhibits enhanced thickening, foaming, emulsifying, dispersing and dissolving properties. [R1=C1-C19alkyl or alkenyl group, X=oxypropylene group, n=average number of addition-reacted X groups of 0.Type: ApplicationFiled: April 5, 2005Publication date: August 25, 2005Applicant: KAWAKEN FINE CHEMICALS CO., LTD.Inventors: Toyofumi Ito, Hiroshi Higuchi
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Patent number: 4894457Abstract: A 7-bromo-.beta.-carboline compound of the formula (I): ##STR1## wherein R.sup.1 =H or C.sub.1 -C.sub.5 alkyl and R.sup.2 =C.sub.1 -C.sub.5 alkyl or benzyl, is produced by reacting a .beta.-carboline compound of the formula (II): ##STR2## wherein R.sup.1 and R.sup.2 are as defined above and R.sup.3 =H, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy or benzyloxy, with a brominating agent in an organic solvent in the presence of an alkalic and then hydrolyzing the resultant procursory 7-bromo-.beta.-carboline compound of the formula (III): ##STR3## is a solvent in the presence of a mineral acid.Type: GrantFiled: December 21, 1987Date of Patent: January 16, 1990Assignee: Kawaken Fine Chemicals Co., Ltd.Inventors: Masaaki Kubo, Hiroshi Umezawa, Kazuhiro Okura
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Patent number: 4843173Abstract: Gluconic acid is produced by oxidizing glucose with an oxygen-containing gas in an aqueous alkali solution in the presence of a palladium-bismuth/carbon catalyst which has adsorbed firstly bismuth and secondly palladium. The catalyst has an improved activity, selectivity and durability.Type: GrantFiled: May 16, 1988Date of Patent: June 27, 1989Assignees: Kawaken Fine Chemicals Co., Ltd., Kao CorporationInventors: Hisashi Saito, Shinji Ohnaka, Shigeo Fukuda
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Patent number: 4760195Abstract: A 5-bromo-1-pentanal compound of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 respectively represent, independently from each other, a member selected from the group consisting of a hydrogen atom and alkyl radicals having 1 to 7 carbon atoms, or an acetal derivative of said 5-bromo-1-pentanal compound, is produced by subjecting a starting compound selected from the group consisting of 4-pentenal compounds of the formula (II): ##STR2## wherein R.sup.1 and R.sup.2 are as defined above, and acetal derivatives of the above-mentioned compounds, to a free radical addition reaction with hydrogen bromide in a liquid medium at a temperature of 10.degree. C. to 60.degree. C.; in the presence of a free radical initiator or by irradiating ultraviolet rays to the reaction mixture, and by collecting the resultant reaction product from the reaction mixture.Type: GrantFiled: July 28, 1987Date of Patent: July 26, 1988Assignee: Kawaken Fine Chemicals Co., Ltd.Inventors: Masaaki Kubo, Kazuhiro Okura
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Patent number: 4617400Abstract: A process for preparing a cyclic N,N'-dimethyl urea derivative by reacting a cyclic urea compound with formaldehyde, in a medium, in the presence of hydrogen and a hydrogenation catalyst. The reaction is carried out in the presence of a solid acid obtained by calcining sulfuric acid and aluminum oxide or sulfuric acid, phosphoric acid and aluminum oxide.Type: GrantFiled: September 11, 1985Date of Patent: October 14, 1986Assignee: Kawaken Fine Chemicals Co., Ltd.Inventors: Kazuhisa Ito, Yoshio Fukuda
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Patent number: 4576647Abstract: An oleophilic composition comprising a powdery or granular substance having a hydrophilic surface and a surface modifier comprising an aluminum chelate compound of the formula (I): ##STR1## wherein R.sup.1 is selected from hydrogen and C1-6 alkyl, R.sup.2 is selected from methyl and phenyl, R.sup.3 is selected from R.sup.4 --, R.sup.5 O-- and R.sup.6 NH--, A is selected from R.sup.7 O--, R.sup.8 COO--, R.sup.9 SO.sub.3 --, R.sup.10 OSO.sub.3 --, ##STR2## R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13 are C1-22 alkyl or C3-22 alkenyl, aryl, aralkyl or alkylaryl, R.sup.3 may be the same as or different from R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13, with the proviso that at least one of R.sup.3, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12, and R.sup.13 is a substituent having at least 8 carbon atoms or a polymerizable alkenyl group, and m=0.5 to 2.7, n=0.3 to 2.5 and m+n=0.8 to 3.Type: GrantFiled: August 24, 1984Date of Patent: March 18, 1986Assignees: Kawaken Fine Chemicals Co., Ltd., Ajinomoto Co., Inc.Inventor: Noritaka Matsushita
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Patent number: 4529555Abstract: A surface modifier for a powdery or granular substance having a hydrophilic surface is provided. The surface modifier comprises an aluminum chelate compound of the formula (I): ##STR1## wherein R.sup.1 is selected from hydrogen and C1-6 alkyl, R.sup.2 is selected from methyl and phenyl, R.sup.3 is selected from R.sup.4 --, R.sup.5 O-- and R.sup.6 NH--, A is selected from R.sup.7 O--, R.sup.8 COO--, R.sup.9 SO.sub.3 --, R.sup.10 OSO.sub.3 --, ##STR2## R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13 are C1-22 alkyl or C3-22 alkenyl, aryl, aralkyl or alkylarly, R.sup.3 may be the same as or different from R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13, with the proviso that at least one of R.sup.3, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12, and R.sup.13 is a substituent having at least 8 carbon atoms of a polymerizable alkenyl group, and m=0.5 to 2.7, n=0.3 to 2.5 and m+n=0.8 to 3.Type: GrantFiled: September 27, 1982Date of Patent: July 16, 1985Assignees: Kawaken Fine Chemicals Co., Ltd., Ajinomoto Co., Inc.Inventor: Noritaka Matsushita
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Patent number: 4273684Abstract: A transparent detergent bar possessing good foaming power and detergency in hard water is formulated consisting essentially of at least one salt of a N-long chain acyl-optically active acidic amino acid neutralized with a basic amino acid in the ratio of 1 mol of the former to 1 to 2 mols of the latter and water in the range of 5 to 35% based on the weight of the bar apart from water. Other adjuvents may be present.Type: GrantFiled: May 22, 1980Date of Patent: June 16, 1981Assignees: Ajinomoto Co., Inc., Kawaken Fine Chemicals Co., Ltd.Inventors: Tetsuya Nagashima, Yasunori Usuba, Takahisa Ogawa, Masahiro Takehara
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Patent number: 4273933Abstract: A modified nickel catalyst used for stereo-differentiating reduction of carbonyl compounds is provided. The modified nickel catalyst is prepared by soaking a nickel catalyst in an aqueous modifying medium having dissolved therein at least one inorganic salt, such as sodium bromide or sodium chloride, and at least one optically active substance, such as optically active hydroxy acid. The modified nickel catalyst exhibits enhanced activity for stereo-differentiating reduction and causes little or no side reactions, and thus, brings about an extremely high yield of the reaction product.Type: GrantFiled: April 25, 1979Date of Patent: June 16, 1981Assignee: Kawaken Fine Chemicals Co., Ltd.Inventors: Tadao Harada, Yoshiharu Izumi, Shinichiro Komatsu
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Patent number: 4115426Abstract: A novel and effective method for the synthetic preparation of dialkylchlorosilanes as an important intermediate in the silicone industry is provided, which is based on the selectivity of a specific combination of a reaction solvent and a reducing agent in the dechlorination-reduction of one of the two silicon-bonded chlorine atoms present in a dialkyldichlorosilane to convert the Si-Cl linkages to Si-H. The reaction solvent used is either N,N'-dimethylimidazolidinone or N,N,N',N',N",N"-hexamethyl-phosphoric triamide, while the reducing agent is sodium borohydride, optionally in combination with sodium hydride.Type: GrantFiled: January 24, 1978Date of Patent: September 19, 1978Assignees: Kawaken Fine Chemicals Co., Ltd., Shin-Etsu Chemical Co., Ltd.Inventors: Takeshi Hiiro, Hideki Sakurai, Fumihiko Kondo
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Patent number: 4108891Abstract: Monosaccharides are oxidized by an oxygen-containing gas in the presence of a special palladium-carbon catalyst which is prepared by adsorbing palladium on active carbon at a temperature lower than 60.degree. C while the active carbon is suspended in an aqueous solution of an alkali metal hydroxide or carbonate and then reducing the palladium with formaldehyde.Type: GrantFiled: February 3, 1977Date of Patent: August 22, 1978Assignees: Kao Soap Co., Ltd., Kawaken Fine Chemicals Co., Ltd.Inventors: Kenichi Hattori, Bunji Miya, Morio Matsuda, Mutsuo Ishii, Hisashi Saito, Hiroshi Watanabe, Hidemitu Takizawa
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Patent number: 4038287Abstract: Compounds of allantoin with basic amino acids have a solubility which is from about 25 to 50 times greater than that of pure allantoin. The compounds have almost the same pharmacological effects as allantoin and the basic amino acids and they are harmless. The compounds can be used in medicines, cosmetics, creams and ointments.Type: GrantFiled: April 12, 1976Date of Patent: July 26, 1977Assignee: Kawaken Fine Chemicals Co., Ltd.Inventors: Hirohide Takayama, Kiyoshi Niino, Sigeo Fukuda
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Patent number: 4025525Abstract: Allantoin compound with a metal salt of 2-pyrrolidone-5-carboxylic acid has a solubility which is from 2.5 to 4 times greater than that of pure allantoin. The compound has almost the same pharmacological effect as allantoin itself and is harmless, and therefore it can be used in medicines, cosmetics, creams, ointments, etc.Type: GrantFiled: September 16, 1975Date of Patent: May 24, 1977Assignee: Kawaken Fine Chemicals Co., Ltd.Inventors: Hirohide Takayama, Ippei Yoshimura