Abstract:
PURPOSE:To obtain the titled copolymer, having a high glass transition temperature as well as low photoelastic constant and used as optical information recording disks, by linking specific components of bis(hydroxyphenyl)-m- diisopropylbenzene, etc. CONSTITUTION:A copolymer which is an aromatic polycarbonate copolymer, obtained by linking 30-50mol.% 1,1'-bis-(4-hydroxyphenyl)-m-diisopropylbenzene to 15-70mol.% 1,1'-bis-(4-hydroxyphenyl)-p-diisopropylbenzene and 3-40mol.% 2,2-bis-(4-hydroxyphenyl)propane through carbonate bonds so as to provide 100mol.% total amount of the respective components and have >=125 deg.C glass transition temperature thereof as well as m /N) photoelastic constant. Furthermore, the viscosity-average molecular weight is preferably 13,000-50,000.
Abstract:
PURPOSE:The titled novel composition having improved adhesivity to metallic face, showing no reduction in sensitivity in the case when it is used as photoresist, containing a specific compound besides main components consisting of a thermoplastic organic polymer binder, a photopolymerization initiator, etc. CONSTITUTION:(A) A thermoplastic organic polymer binder (preferably polymethyl methacrylate, etc.) is blended with (B) an additionally polymerizable unsaturated compound (preferably tetraethylene glycol diacrylate, etc.) containing two or more ethylenic unsaturated double bonds and (C) a photopolymerization initiator (preferably anthraquinone, etc.) as main components and further (D) a compound (e.g., dimethylglyoxime, etc.) shown by formula I or formula II (R1 and R3 are alkyl, substituted carbonyl, etc.; R2 and R4 are H, alkyl, etc.) as an adhesivity improver to give the aimed composition.
Abstract:
PURPOSE:To obtain a photopolymerizable compsn. having high resolving power capable of reproducing a picture image expressing a faithfully the lines of an original plate by using a compsn. consisting of an addition-polymerizable unsatd. compd. having at least two ethylenic unsatd. double bonds in a molecule of thermoplastic org. polymer binder and a photopolymn. initiator as primary components wherein specified purine compd. or its deriv. is added. CONSTITUTION:A photopolymerizable compsn. consists of a thermoplastic org. polymer binder, an addition-polymerizable unsatd. compd. having at least two ethylenic double bonds in a molecule, and a photopolymn. initiattor as primary components, and a purine compd. expressed by the formula or its deriv. as additive component. Specific examples for the compd. expressed by the formula providing improved adhesion and resistance to plating are purine, hypoxanthine-8-purinecarboxylic acid, etc. The content basing on the whole weight (dry basis) of the photopolymerizable compsn. is pref. 0.006-6.0wt%. Suitable thermoplastic org. polymer binder is polymer or copolymer of vinyl monomers such as polyacrylic acid, etc. Suitable photopolymn. initiator is one being suitable for the polymn. of ethylenic unsatd. compd.
Abstract:
PROBLEM TO BE SOLVED: To provide a detergent composition being safe to a human body and having high detergency. SOLUTION: The detergent composition is prepared by synthesizing, by means of an addition polymerization and from a fatty acid and glycidol, a polyglycerin monofatty acid ester having a monoester component of 70 wt.% or more, which monoester being expressed by general formula (1): RCO-[OCH 2 CH(OH)CH 2 ] n -OH (wherein, R is an alkyl group substituted with a 6-21C alkyl group, alkenyl group or an alkyl group substituted with a hydroxyl group; and n is an average number of additional monomers of 2 or more) and by utilizing the above polyglycerin monofatty acid ester obtained. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To obtain a water-based polyurethane resin and provide a method for producing the same. SOLUTION: A carboxylic group-containing polyester polyol having 550-950 number average molecular weight and being liquid at normal temperatures is prepared by ring-opening polymerization of ε-caprolactone to a compound expressed by formula (1):HOCH 2 C(COOH)RCH 2 OH (wherein R expresses a ≥2C alkyl). The polyester polyol gives a water-based polyurethane resin excellent in its working condition and drying properties for applying the same, homogeneity and stability and useful for various applications such as a paint, a binder for printing inks, an adhesive and the like. The water-based polyurethane resin excellent in the working condition and the drying properties is easily produced by the method. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of a maleic anhydride alkyl vinyl ether copolymer, wherein the copolymer does not give a bad influence to a human body, does not adhere to such as a wall of a reactor in a cheap solvent when reacting, and is obtained through precipitation polymerization with a fine-solid shape, and to provide the maleic anhydride alkyl vinyl ether copolymer. SOLUTION: The maleic anhydride alkyl vinyl ether copolymer is produced by (1) feeding maleic anhydride and an organic solvent in the reactor, and heating a uniform maleic anhydride solution at a constant polymerization temperature, (2) copolymerizing an alkyl vinyl ether in the presence of a free radical initiator, suspending a formed copolymer in a reaction medium, and forming a slurry, (3) removing the organic solvent used in the reaction in the range of a specific temperature. The maleic anhydride alkyl vinyl ether copolymer having a little residual solvent and the fine-solid shape, is provided. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a spandex filament excellent in elasticity recovery, strength, hydrolysis resistance and thermostability, a polyurethane given therefor, and further a polyester diol used therefor. SOLUTION: This spandex filament is composed of the polyurethane obtained from a lactone polyester diol, containing a specific alicyclic ether, ε-caprolactone and a dibasic acid, as at least a constitutional component unit, and an organic diisocyanate.
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject composition containing little residual reaction product, residual by-product and residual catalyst and useful as a high-quality industrial finishing agent by including a reactive monomer derived from methyl- substituted ε-caprolactone. SOLUTION: The objective composition is composed of a reactive monomer of formula (R is H or methyl; R1 and R2 are each H or methyl; (n) is the number of constituent units of the component B and its average is 1-12; R3 and R4 are each H or a 1-3C alkyl; (x) is 2-4) produced by reacting (A) 1 mol of a hydroxyalkyl (meth)acrylate with (B) 1-12 mol of methyl-substituted ε- caprolactone in the presence of (C)
Abstract:
PROBLEM TO BE SOLVED: To obtain a composition containing a novel α-hydroxymethacrylate lactone modified product useful as comonomers in the polymerization reaction with other ethylene-based unsaturated monomers, or the like. SOLUTION: This α-hydroxymethacrylate.lactone-modified product is expressed by the formula [R is an alkyl or an aryl, R1 and R2 are each independently H or an alkyl, (x) is 4-7 integer, (n) is an integer expressing the number of lactone-structural units and the average of (n) is 1-12]. The production of a-hydroxymethacrylate.lactone-modified product is to react an alkyl (or aryl)-α- hydroxymethacrylate with an equimolar or excess molar ratio of a lactone to the alkyl (or aryl)-α-hydroxymethacrylate in the presence of a catalyst.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a copolymer having a high specific viscosity, by using a polymerization initiator to polymerize maleic anhydride and methyl vinyl ether in a normal pressure reaction system while suppressing the generation of a homopolymer of one of these monomers or a copolymer having a rich composition of one of the monomers. SOLUTION: This method for producing methyl vinyl ether-maleic anhydride copolymer by using maleic anhydride, methyl vinyl ether, a polymerization initiator and a solvent comprises charging a maleic anhydride solution consisting of the maleic anhydride and the solvent in a reactor, heating-up the solution, adding a part of the methyl vinyl ether to the reactor and mixing the added product, and further adding the polymerization initiator and the remainder of the methyl vinyl ether to carry out the reaction.