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71. 发明专利

JPH0550503B2 失效
公开(公告)号：JPH0550503B2
公开(公告)日：1993-07-29
申请号：JP12276885
申请日：1985-06-07
申请人： SHOWA DENKO KK
发明人： SUGITA SHUICHI , MARUMO KUNIOMI , ISHIOKA RYOJI
IPC分类号： C07C309/14 , C07C67/00 , C07C301/00 , C07C303/20 , C07C309/15

72. 发明专利

JPH04100821A NEW ALLYL OLIGOMER 失效
公开(公告)号：JPH04100821A
公开(公告)日：1992-04-02
申请号：JP21856990
申请日：1990-08-20
申请人： SHOWA DENKO KK
发明人： UCHIDA HIROSHI , MARUMO KUNIOMI
IPC分类号： C08G63/47 , C08G63/52
摘要： PURPOSE:To obtain inexpensively a new allyl oligomer which can give a cured product excellent in mechanical strengths and heat resistance by reacting diallyl terephthalate with diallyl isophthalate and a specified polyol in the presence of a transesterification catalyst while distilling off the formed allyl alcohol. CONSTITUTION:An allyl ester-terminated oligomer having an-average molecular weight Mn (in terms of the molecular weight of PS as measured by GPC) of 500-50000, a weightaverage molecular weight Mw of 1000-1000000 and a degree of unsaturation in terms of an iodine value as measured by the Wijs method of 10-140 is obtained by reacting diallyl terephthalate (A), diallyl isophthalate (B) and a starting material (C) of formula I [wherein Z is a 1-20C organic residue derived from a polyol having (X + 1) (wherein X is 1-8) OH groups] in a molar ratio satisfying the relationships of formula II and III (wherein a, b and c are the molar fractions of components A, B and C, respectively) in the presence of a transesterification catalyst while distilling off the formed allyl alcohol. According to the above process, an allyl oligomer which can give a cured product excellent in mechanical strengths and heat resistance, etc. can be obtained less laboriously by using inexpensive starting materials.

73. 发明专利

JPH0477513A NEW ALLYL-BASED OLIGOMER HAVING EXCELLENT IMPACT RESISTANCE 失效
公开(公告)号：JPH0477513A
公开(公告)日：1992-03-11
申请号：JP18746690
申请日：1990-07-16
申请人： SHOWA DENKO KK
发明人： UCHIDA HIROSHI , MARUMO KUNIOMI
IPC分类号： C08F299/04 , C08F290/00
摘要： PURPOSE:To obtain the title oligomer providing cured materials, having excellent strength, heat resistance, a specific molecular weight, and iodine value by reacting an aromatic dicarboxylic acid diallyl ester with a polyol and an aliphatic dicarboxylic acid diallyl ester in the presence of an ester exchange catalyst under a specific condition. CONSTITUTION:A raw material comprising (A) an aromatic dicarboxylic acid diallyl ester shown by formula I (Ar is 1,2-1,3- or 1,4 phenylene, etc.), (B) a polyol shown by formula II [Z is 2-20 organic residue of polyol containing (X+1)((x) is 1-8) hydroxyl groups and (C) an aliphatic dicarboxylic acid diallyl ester shown by formula III ((n) is 3-16) is reacted in mol fraction shown by formula IV ((a) and (c) are mol fractions of the components A and c) and formula V ((b) is mol fraction of component B) in the presence of an ester exchange catalyst, and allyl alcohol is distilled away to give an oligomer having 500-50,000, calculated as polystyrene, of number-average molecular weight (Mn) by GPC method, 1,000-200,000 weight-average molecular weight (Mw), being the ratio of Mw/Mn of 1.20-40.0 and 100-150 unsaturation degree shown by iodine value of Wis method and containing terminal allyl ester.

74. 发明专利

JPH02300220A ALLYLIC THERMOSETTING RESIN COMPOSITION 失效
公开(公告)号：JPH02300220A
公开(公告)日：1990-12-12
申请号：JP12106989
申请日：1989-05-15
申请人： SHOWA DENKO KK
发明人： UCHIDA HIROSHI , MARUMO KUNIOMI
IPC分类号： C08F299/00 , C08F290/00 , C08F290/06 , C08F299/02 , C08G63/00 , C08G63/52
摘要： PURPOSE:To obtain a curable resin composition which is tough and excellent in heat resistance by mixing a allyl-terminated oligomer with an unsaturated polyester resin. CONSTITUTION:95-10wt.% allyl-terminated oligomer (A) [an oligomer of formula I (wherein B is a 2-20C diol-derived bivalent organic residue; Ar is 1,4-, 1,3- or 1,2-phenylene; and n=1-100) or an oligomer terminated with an allyl ester and having repeating units of formulas II and III (wherein X is 2-10; Z is an organic residue derived from a polyol having X+1 OH group; B and Ar are as defined above) each of which has a degree of instruction as represented by an iodine value of 20-100 as measured by the Wijs method] is mixed with 5-90wt.% at least one member (B) selected from among unsaturated polyesters and vinyl esters. A curable resin composition excellent in toughness and heat resistance as compared with a conventional diallyl phthalate resin and an unsaturated polyester can be obtained.

75. 发明专利

JPH0228138A STABILIZER FOR DIALLYL PHTHALATE MONOMER 失效
公开(公告)号：JPH0228138A
公开(公告)日：1990-01-30
申请号：JP17855688
申请日：1988-07-18
申请人： SHOWA DENKO KK
发明人： UCHIDA HIROSHI , HASEGAWA HIROYUKI , MARUMO KUNIOMI
IPC分类号： C07C67/62 , C07C69/80
摘要： PURPOSE:To provide a stabilizer comprising NaBH4 or LiBH4 and useful for diallyl phthalate monomer. CONSTITUTION:A polymerization solution containing the prepolymer of diallyl phthalate (DAP) monomer on the production of DAP resin or a monomer liquid containing a peroxide produced during the storage thereof is mixed with NaBH4 or LiBH4 as a stabilizer, followed by vacuum-distilling the monomer in a stabilized operation to provide the monomer having a high quality. The stabilizer is added to the polymerization solution in an amount of 500ppm when the active oxygen amount of the polymerization solution is

76. 发明专利

JPH01121234A PRODUCTION OF 4-HYDROXYBUTANALS 失效
公开(公告)号：JPH01121234A
公开(公告)日：1989-05-12
申请号：JP31597487
申请日：1987-11-02
申请人： SHOWA DENKO KK
发明人： SUZUKI TOSHIRO , UCHIDA HIROSHI , MARUMO KUNIOMI
IPC分类号： C07C45/50 , C07B61/00 , C07C45/00 , C07C47/19 , C07C67/00
摘要： PURPOSE:To obtain the title compound which is used as a starting substance of medicines and agrochemicals in high yield under relatively mild conditions without combustible gases such as hydrogen by hydroformylation of allyl alcohol with carbon monoxide and water using a specific catalyst. CONSTITUTION:The hydroformylation of an allyl alcohol or its derivative of formula I (R1-R6 are H, 1-18C aliphatic or aromatic hydrocarbon group) such as allyl alcohol is carried out by allowing the alcohol, preferably in a concentration of 0.001-2mol./l, to react with carbon monoxide and water in a solvent such as tetrahydrofuran in the presence of a catalyst which is composed of rhodium carbonyl cluster Rh6(CO)16 and a trialkylphosphine such as tributyl phosphine, preferably at 30-150 deg.C under 0.2-50kg/cm CO partial pressure to give the subject compound of formula II with high selectivity of straight-chain products such as 4-hydroxybutanal which is used in the formation of 1,4-butanediol, a starting substance of polyester or polyurethane.

77. 发明专利

JPH01100153A PRODUCTION OF N-(ALPHA-ALKOXYETHYL)CARBONAMIDE 失效
公开(公告)号：JPH01100153A
公开(公告)日：1989-04-18
申请号：JP25767987
申请日：1987-10-13
申请人： SHOWA DENKO KK
发明人： SUGITA SHUICHI , MARUMO KUNIOMI
IPC分类号： C07C231/00 , C07C67/00 , C07C231/12 , C07C233/18 , C07C233/69
摘要： PURPOSE:To obtain a compound which is used as an intermediate of N-vinyl- carboxylic acid amide, one of starting substances of chemicals, from readily available feedstock simply in high yield, by allowing ethylidene bisamide and an alkanol in the presence of an acidic catalyst. CONSTITUTION:The subject compound obtained by reaction of ethylidenebisam ide of the formula: CH3CH(NHCOR1)2OH (R1 is 1-6C alkyl, benzyl, aryl) with an alkanol of the formula; R2OH (R2 is 1-4C alkyl) in the presence of an acidic catalyst such as sulfuric acid, an acidic cation-exchange resin at 0-200 deg.C, preferably 10-100 deg.C. The molar ratio of the ethylidene bisamide to the alkanol is 1:(1-50), preferably 1:(2-30). The conversion into the corresponding N- vinylcarboxylic acid is thermally conducted at 60-350 deg.C in a usual manner.

78. 发明专利

JPS6212747A PRODUCTION OF DIALLYL ESTER 失效
公开(公告)号：JPS6212747A
公开(公告)日：1987-01-21
申请号：JP14995085
申请日：1985-07-10
申请人： SHOWA DENKO KK
发明人： UCHIDA HIROSHI , MARUMO KUNIOMI , ISHIOKA RYOJI
IPC分类号： C07C69/83 , B01J27/00 , B01J27/232 , C07B61/00 , C07C67/03
摘要： PURPOSE:To industrially and advantageously obtain the titled compound useful as a crosslinking agent, etc., by reacting a dialkyl ester of an aromatic dibasic acid with (meth)allyl alcohol in the presence of an alkali metal (hydrogen) carbonate as an ester interchange reaction catalyst. CONSTITUTION:A dialkyl ester of an aromatic dibasic acid is reacted with allyl or methallyl alcohol to synthesize di(meth)allyl ester of the aromatic dibasic acid. In the process, a carbonate or hydrogencarbonate of an alkali metal is used as an ester interchange reaction catalyst. Examples of the catalyst include lithium carbonate, sodium carbonate, potassium carbonate and the like. The reaction is carried out within 50-250 deg.C, preferably 80-200 deg.C range under normal - higher pressure, preferably in an inert gas atmosphere.

79. 发明专利

JPS61191672A PRODUCTION OF CYSTEAMINE OR SALT THEREOF 失效
公开(公告)号：JPS61191672A
公开(公告)日：1986-08-26
申请号：JP3141285
申请日：1985-02-21
申请人： SHOWA DENKO KK
发明人： SUGITA SHUICHI , ISHIOKA RYOJI , MARUMO KUNIOMI
IPC分类号： C07C319/04 , C07C67/00 , C07C313/00 , C07C319/12 , C07C323/25 , C07C323/41
摘要： PURPOSE:To obtain the titled compound in high yield, by adding radically hydrogen sulfide to easily obtainable N-vinylacetamide, and hydrolyzing the prepared reaction product. CONSTITUTION:N-Vinylacetamide is reacted with excess liquefied hydrogen sulfide (excess ratio of 2-100 times) in the presence of a solvent (e.g., butyl acetate, benzene, methanol, 1,4-dioxane, etc.) at 50-120 deg.C at normal pressure - 50kg/cm by the use of a radical initiator, to give N-(beta-mercaptoethyl) acetamide. This compound is hydrolyzed in the presence of an acid or an alkali in an aqueous solution in an inert gas atmosphere, to give cysteamine or its salt. It is extremely useful substance as an intermediate for drugs and agricultural chemicals or a radiation-protecting substance.

80. 发明专利

JPS60237055A N-ARYLPHTHALAMIDE DERIVATIVE 失效
公开(公告)号：JPS60237055A
公开(公告)日：1985-11-25
申请号：JP9176184
申请日：1984-05-10
申请人： SHOWA DENKO KK
发明人： MORIGUCHI SOYAO , MARUMO KUNIOMI , IKENOUE YOSHIAKI , KURATA YOUHEI
IPC分类号： C07C233/65 , C07C67/00 , C07C231/00 , C07C233/66 , C07C233/75 , C07C233/78 , C07C233/80
摘要： NEW MATERIAL:A compound of formula I (R1 and R3 are lower alkyl; R2 is straight chain or branched alkoxycarbonyl; R4-R6 are H, halogen, alkyl, alkoxyl, CF3, NO2, dialkylamino or R4 and R5 together may represent methylenedioxy). EXAMPLE:4-Ethoxycarbonyl-3,5-dimethyl-2-[N-( alpha,alpha,alpha-trifluoro-o-tolyl )carbamoyl] benzamide. USE:An intermediate for preparing compounds useful as a vasodilator, ameliorant of blood stream, hypotensive agent or antiarteriosclerotic agent. PREPARATION:A phthalisoimide derivative having the corresponding group of formulaII, e.g. 5-methoxycarbonyl-4,6-dimethyl-3-(alpha,alpha,alpha-trifluoro-o, m- or p- tolylimino)phthalide, is ammonolyzed to give the aimed compound of formula I.

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