Abstract:
The present invention provides a process for producing a vinyl polymer characterized in that, in a radical polymerization of a vinyl monomer, a substituted hydroxylamine represented by a general formula: (in which R1 and R2 represent hydrogen, a (substituted) aliphatic hydrocarbon group having one or more carbon atom(s) or an aromatic hydrocarbon group) and/or a general formula: (in which R3 and R4 represent a (substituted) aliphatic hydrocarbon group having one or more carbon atom(s)) is added. A radically polymerized vinyl polymer having a high molecular weight and a restrained molecular weight distribution can be obtained by the process of the present invention, even under a polymerization condition at a high temperature. The present invention provides, therefore, a process enabling to produce vinyl polymers which promise to have practical properties such as appearance, mechanical properties and heat resistance useful as materials for various moldings and coatings. Thus, the industrial and technical value of the present invention is extremely high.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for industrially efficiently preparing a low-colored aminoaryl aminobenzazole compound with few steps and within a short time. SOLUTION: The method for preparing the aminoaryl aminobenzazole compound of formula (2) (wherein Ar 1 and Ar 2 are identical to or different from each other and are each a benzene ring or the like; and X is NH or the like) comprises reducing a nitroaryl nitrobenzazole compound of formula (1) (wherein Ar 1 , Ar 2 and X are as defined above) in the presence of an adsorbent, which is preferably activated carbon. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for obtaining a fluorosulfonyl group- and hydroxy group-bearing cyclic acetal compound, which corresponds to a dehydration reaction product of a fluorosulfonyl group-bearing vicinal diol with a hydroxy group-bearing carbonyl compound, as a product containing no acids in a high yield by a simple operation. SOLUTION: The manufacturing method of the fluorosulfonyl group- and hydroxy group-bearing cyclic acetal compound, which corresponds to a dehydration reaction product of a fluorosulfonyl group-bearing vicinal diol with a hydroxy group-bearing carbonyl compound, comprises a step for treating a crude cyclic acetal compound containing an acid with a base under a dehydrating condition. The hydroxy group-bearing carbonyl compound includes an α-hydroxycarbonyl compound. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an easy, industrially efficient method for obtaining titanium oxide comprising a single crystal form from a mixture of titanium oxides with different crystal forms. SOLUTION: In the method for refining the titanium oxide, the titanium oxide comprising the single crystal form is obtained by subjecting the mixture of titanium oxides with different crystal forms to a treatment with an alkaline hydrogen peroxide solution or sulfuric acid. The refining method includes methods for obtaining anatase type titanium oxide and rutile type titanium oxide by subjecting a mixture of anatase type titanium oxide and rutile type titanium oxide to treatment with the alkaline hydrogen peroxide solution and sulfuric acid, respectively. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a new crosslinkable ring-bearing nitro- or amino-phenol that is useful as a starting monomer or intermediate for more high heat-resistant and high functional polymer. SOLUTION: The crosslinkable ring-bearing nitro- or amino-phenol is represented by formula (1) (wherein ring A is a crosslinkable hydrocarbon ring which may be substituted, Ar is an aromatic ring group which may be substituted, X is nitro or amino group which may protected with a protecting group, n is an integer of 0 through 3, the hydroxy groups in the formula may be protected with a protecting group; the compound that has X groups bonding to individual Ars on the ortho position of the hydroxy groups is particularly preferred. Further, the compound where individual Ars bonding to the carbon atoms on the bridge head of the ring A is preferred). COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To obtain a condensed cyclic hydroperoxide or condensed cyclic alcohol in high selectivity from the corresponding condensed cyclic compound including an aromatic ring-condensed cycloalkane ring. SOLUTION: This condensed cyclic hydroperoxide where a hydroperoxy group is bound to one of the carbon atoms composing the cycloalkane ring is obtained by oxidizing with oxygen the corresponding condensed cyclic compound including the aromatic ring-condensed cycloalkane ring in the presence of an imide compound having a cyclic imido skeleton of formula (I) [where, X is an oxygen atom or OR group (R is H or a hydroxyl-protecting group)] and in the absence of any cobalt compound. The other condensed cyclic alcohol is obtained by reduction of the thus obtained condensed cyclic hydroperoxide.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing an epoxy compound, by which the epoxy compound can efficiently be produced from the corresponding olefin in a simple operation under mild conditions. SOLUTION: This method for producing the epoxy compound is characterized by oxidizing the corresponding olefin with molecular oxygen in the presence of an oxidation catalyst comprising titanium dioxide and an imide compound represented by formula (1) (R 1 and R 2 are each identically or differently H, a halogen atom, an alkyl or the like; R 1 and R 2 may be bound to each other to form a double bond, an aromatic ring, a non-aromatic ring, or the like; X is O or OH) and a primary or secondary alcohol. The titanium dioxide preferably contains at least anatase type titanium dioxide. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To obtain an electroconductive thermoplastic resin composition capable of providing a molded product excellent in electromagnetic wave shielding properties. SOLUTION: This electroconductive thermoplastic resin composition comprises (A) a thermoplastic resin, (B-1) electroconductive long fibers having 4-20 μm diameter and 4-30 mm length and (B-2) electroconductive staple fibers having 30-100 μm diameter and 1-5 mm length.
Abstract:
PROBLEM TO BE SOLVED: To obtain a rubber-modified styrene resin composition excellent in the balance among strength, transparency and moldability. SOLUTION: This composition is a rubber-modified styrene resin composition wherein the continuous phase is a styrene copolymer (A) comprising 30-80wt.% styrene monomer component and 70-20wt.% at least either (meth)acrylic acid or an alkyl ester thereof and the disperse phase is a rubbery polymer (B) comprising 10-60wt.% styrene polymer and 90-40wt.% butadiene polymer in a weight ratio (A/B) of 98/2 to 70/30. The total weight of low-molecular-weight compounds having a weight-average molecular weight (in terms of polystyrene) as measured by gel permeation chromatography is 2.0% or below.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for safely and industrially efficiently manufacturing in a high yield an epoxy compound bearing a halosulfonyl group from an unsaturated compound bearing a halosulfonyl group (sulfohalide group). SOLUTION: The manufacturing method of the epoxy compound bearing a halosulfonyl group comprises oxidizing an unsaturated compound bearing a halosulfonyl group represented by formula (1) with an oxidizing agent to give the epoxy compound bearing a halosulfonyl group represented by formula (2), where the method comprises a step for subjecting the oxidizing agent remaining after oxidation of the unsaturated compound bearing a halosulfonyl compound with the oxidizing agent to a reduction treatment under a condition of pH of 9 or lower. In formula (1), A is an optionally substituted alkylene group or a bivalent group consisting of a plurality of optionally substituted alkylene groups each bonded via a linking group; R 1 -R 3 are each a hydrogen atom or an optionally substituted alkyl group; and X is a halogen atom. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation:要解决的问题:提供一种从具有卤磺酰基(磺基卤化物基团)的不饱和化合物中以高产率安全和工业上有效地制备含有卤代磺酰基的环氧化合物的方法。 解决方案:具有卤代磺酰基的环氧化合物的制造方法包括用氧化剂氧化由式(1)表示的具有卤代磺酰基的不饱和化合物,得到带有由式(2)表示的卤代磺酰基的环氧化合物, 其中该方法包括在pH为9或更低的条件下使带有卤代磺酰基化合物的不饱和化合物在氧化后残留的氧化剂与氧化剂进行还原处理的步骤。 在式(1)中,A是任选取代的亚烷基或由多个任选取代的亚烷基组成的二价基团,各自通过连接基团键合; R 1〜R 3各自为氢原子或任选取代的烷基; X为卤素原子。 版权所有(C)2008,JPO&INPIT