摘要:
A polycarbonate polyol composition which can be used to prepare polycarbonate(meth)acrylate and urethane(meth)acrylate compositions is obtained by the ester interchange reaction of a polycarbonate diol composition with a triol and/or tetraol. The (meth)acrylate compositions have excellent photo and electron beam curability and the cured layers prepared therefrom have excellent heat resistance under moisture conditions.
摘要:
In the first aspect of the present invention, there is disclosed a method for producing a copolymer of an alkyl vinyl ether and maleic anhydride which comprises removing an organic solvent used in a reaction under a temperature so that a slurry state can be maintained. According to the first aspect, such a copolymer of the alkyl vinyl ether and maleic anhydride which contains a little amount of the solvent remaining therein as disclosed in the second aspect of the present invention, can be obtained.Further, it can be avoided that a specific viscosity of the copolymer of the alkyl vinyl ether and maleic anhydride is lowered, by means of a method for producing a copolymer of alkyl vinyl ether and maleic anhydride which comprises shielding oxygen in a polymerization, as disclosed in the third aspect of the present invention.
摘要:
A cyclic ester (e.g., a lactone such as ε-caprolactone) is ring-opening addition polymerized with a dihydroxycarboxylic acid in the presence of a basic compound (e.g., an amine). In a polyester polyol obtained by such a process, at least part of a carboxyl group of the polyester polyol forms a carboxylate with the basic compound, and the content of the dihydroxycarboxylic acid in a free form can be remarkably reduced (for example, reduced to not more than 5% by weight relative to the total polyester polyol). According to the present invention, a polyester polyol having a reduced content of a free or unreacted dihydroxycarboxylic acid is provided even in the case of using a dihydroxycarboxylic acid (e.g., a dimethylolalkanoic acid such as dimethylolpropionic acid) as an initiator.
摘要:
A post-processing device include a conveyed medium stacking portion, a medium bundle stapling member, a medium bundle stacking portion and a medium bundle stacking control unit. A plurality of recording mediums, on which images are recorded, are conveyed and stacked into the conveyed medium stacking portion. The medium bundle stapling member staples a medium bundle, which is a bundle of the plurality of recording mediums stacked on the conveyed medium stacking portion, with staples. The stapled medium bundle is conveyed and stacked into the medium bundle stacking portion. The medium bundle stacking control unit stacks a second medium bundle on a first medium bundle under the condition that a second stacking stapling position deviates from a first stacking stapling position in a width direction by a distance not less than a staple width.
摘要:
A polyglycerol fatty acid ester formed by esterifying a polyglycerol and a fatty acid, wherein the polyglycerol has a hydroxyl value of 1200 or less and primary hydroxyl groups in an amount of 50% or more of the total hydroxyl groups, and an emulsified or solubilized composition, foodstuff, and cosmetics, each containing the polyglycerol fatty acid ester.
摘要:
A lactone compound represented by following General Formula (1), such as ε-caprolactone, is reacted in the presence of a powdered activated carbon where necessary with an initiator such as a polyhydric alcohol, an aliphatic alcohol, or an aliphatic carboxylic acid to thereby yield, for example, a polylactone, a polylactone alkyl ether, or a polylactone alkyl ester.[Chemical Formula 1] Wherein R1 is an alkylene group having two to eighteen carbon atoms which may be substituted with one or more alkyl groups each having one to ten carbon atoms.Accordingly, a target compound can be produced in a high yield with high quality, from which the catalyst can be easily removed.
摘要:
Disclosed are a fatty acid esters composition of a polyglycerine containing more than 70% of a fatty acid monoester which is defined by a specified analysis method, a process for the preparation thereof, a process for the preparation of a highly purified fatty esters composition of a polyglycerine, and a highly-purified fatty acid esters composition of a polyglycerine having an oxirane oxygen concentration of below 100 ppm which is defined by a specified analysis method.The fatty acid esters compositions of a polyglycerine are useful as additives for a variety of food-stuffs, additives for a variety of thermoplastic resins, and as additives for a variety of cosmetics or detergents.
摘要:
A molded article is produced from a flame retardant resin composition obtained by compounding a thermoplastic resin or thermosetting resin with a flame retardant composition comprising as essential ingredients a fluorine compound (A) represented by the following formula (1): R1—SO2—R2 or R1—SO3−M+ (1) (wherein R1 represents a C1-C12 perfluoroalkyl group, a C2-C8 perfluoroalkenyl group, a C6-C12 perfluoroaryl group which may be substituted, a C3-C12 perfluoroalicyclic hydrocarbon group, or a C7-C12 perfluoroaralkyl group; R2 represents a halogen atom, an N-alkylamino group, or an N-alkyl-N-hydroxyalkylamino group; and M represents an alkali metal) and a polyester resin (B). The molded article has flame retardancy despite addition of the fluorine compound (A) in a very small amount. Excellent dispersion of the fluorine compound (A) is attained, and bleeding of the compound (A) is prevented.
摘要:
Disclosed are a fatty acid esters composition of a polyglycerine containing more than 70% of a fatty acid monoester which is defined by a specified analysis method, a process for the preparation thereof, a process for the preparation of a highly-purified fatty acid esters composition of a polyglycerine, and a highly-purified fatty acid esters composition of a polyglycerine having an oxirane oxygen concentration of below 100 ppm which is defined by a specified analysis method. The fatty acid esters compositions of a polyglycerine are useful as additives for a variety of food-stuffs, additives for a variety of thermoplastic resins, and as additives for a variety of cosmetics or detergents.
摘要:
An oxirane compound of following Formula (1), such as glycidol, is reacted in the presence of a powdered activated carbon, where necessary, with an initiator such as a polyhydric alcohol, an aliphatic alcohol, or an aliphatic carboxylic acid, to yield, for example, a polyglycidol, a polyglycidol alkyl ether, or a polyglycidol alkyl ester. wherein R1 and R2 may be the same as or different from each other and each represent one selected from hydrogen (H); a branched- or straight-chain alkyl group having one to thirty carbon atoms or an aryl group; and a functional group represented by —CH2-M, wherein M represents OH, F, Cl, Br, or —OR3, wherein R3 represents an alkyl group having one to twenty carbon atoms, allyl group, or an aryl group.A target compound can be obtained in a high yield with high quality according to this invention, from which the catalyst can be easily separated.