专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JPH041284A RESIN COMPOSITION FOR TWO-PACK URETHANE COATING MATERIAL 失效
公开(公告)号：JPH041284A
公开(公告)日：1992-01-06
申请号：JP10023890
申请日：1990-04-18
申请人： MITSUI TOATSU CHEMICALS
发明人： KURODA KAZUMOTO , HASEYAMA RYUJI , TAKAGI MASATOSHI
IPC分类号： C08G18/79 , C09D175/00 , C09D175/04
摘要： PURPOSE:To obtain a resin composition for two-pack urethane coating material superb in weather resistance and excellent in drying characteristics by blending an organic polyisocyanate containing polyisocyanate-isocyanulate with a specific compound. CONSTITUTION:A resin composition comprising an organic polyisocyanate containing 10-100wt.% polyisocyanate-isocyanulate represented by formula I [wherein R1, R2 and R3 are each a group represented by formula II (wherein R4 is H or a lower alkyl; n is 1-5)] and a compound having at least two active hydrogen groups. The polyisocyanate-isocyanulate represented by the formula I is obtained by reacting an organic polyisocyanate represented by formula III in the presence of the conventional trimerization catalyst. This resin composition is prepared by mixing the organic polyisocyanate and the active hydrogen compound and further adding thereto a solvent and additives depending on the purpose and use immediately before the formation of a polyurethane resin. The composition is used generally at room temperature to 150 deg.C.

42. 发明专利

JPH03200748A PRODUCTION OF ALKYLDIAMINES 失效
公开(公告)号：JPH03200748A
公开(公告)日：1991-09-02
申请号：JP34112089
申请日：1989-12-28
申请人： MITSUI TOATSU CHEMICALS
发明人： HASEYAMA RYUJI , HAYASHI KOZO , SASAGAWA KATSUYOSHI , SHIKAI KIYOSHI , YAMAGUCHI KEISABURO
IPC分类号： C07C211/49 , C07C209/36 , C08G18/32
摘要： NEW MATERIAL:An alpha-(aminophenyl)alkylamine shown by formula I (R is 1-5C lower alkyl; NH2 of phenyl group exists at ortho-, meta- or para-position) and a mixture thereof. EXAMPLE:alpha-(Aminophenyl)ethylamine. USE:A raw material for an epoxy resin, polyurethane or polyurea resin. PREPARATION:An alpha-phenylalkylamine shown by formula II is nitrated to give an alpha-nitrophenylalkylamine shown by formula III, which is then reduced to give an alpha-(aminophenyl)alkylamine shown by formula I.

43. 发明专利

JPH03152117A PRODUCTION OF NONRIGID POLYURETHANE FOAM 失效
公开(公告)号：JPH03152117A
公开(公告)日：1991-06-28
申请号：JP28997389
申请日：1989-11-09
申请人： MITSUI TOATSU CHEMICALS
发明人： SAKAI SEIJIRO , TAMURA SATOSHI , SHIKAI KIYOSHI , HASEYAMA RYUJI
IPC分类号： C08J9/02 , C08G18/76 , C08G101/00 , C08J9/14 , C08L75/04
摘要： PURPOSE:To obtain the subject foam excellent in yellowing resistance (light resistance) by using a polyol, specific polyisocyanate, foaming agent, foam stabilizer, etc. CONSTITUTION:The objective foam obtained by using a polyol (preferably having 2000-20000 molecular weight and 20-100mgKOH/g hydroxyl value), alpha-(3- isocyanatophenyl)ethyl isocyanate as a polyisocyanate component, a foaming agent (e.g. water or trichlorofluoromethane), a foam stabilizer (e.g. silicone-based foam stabilizer), a catalyst (e.g. triethylenediamine or silver acetate) and a suitable assistant.

44. 发明专利

JPH0393749A PRODUCTION OF ALPHA-(3-AMINOPHENYL)ETHYLAMINE 失效
公开(公告)号：JPH0393749A
公开(公告)日：1991-04-18
申请号：JP22837089
申请日：1989-09-05
申请人： MITSUI TOATSU CHEMICALS
发明人： HASEYAMA RYUJI , HAYASHI KOZO , SASAGAWA KATSUYOSHI , SHIKAI KIYOSHI
IPC分类号： C07C209/24 , C07C211/49
摘要： PURPOSE:To obtain the subject compound such as a polymer curing agent in high selectivity by carrying out two-state reaction of m-nitroacetophenone through m-aminoacetophenone in the same solvent using a specific catalyst and additive. CONSTITUTION:m-Nitroacetophenon expressed by formula I is catalytically reduced with hydrogen in the presence of a catalyst and a solvent to provide m-aminoacetophenon expressed by formula II. The solvent is then directly used to aminate the resultant compound with hydrogen and ammonia in the presence of a catalyst, a small amount of a weak acid or ammonium salt of the weak acid and afford alpha-(3-aminophenyl)ethylamine expressed by formula III. The aforementioned method can be advantageously carried out under conditions of a low temperature under a low pressure and the small amount of the weak acid or ammonium salt thereof can be added to suppress side reaction. The m-aminoacetophenone expressed by formula II may be obtained by taking out part or the total amount of the reaction product in the intermediate stage of the above-mentioned reaction and carrying out simple purification.

45. 发明专利

JPH02145556A ALIPHATIC TRIISOCYANATE COMPOUND AND PRODUCTION THEREOF 失效
公开(公告)号：JPH02145556A
公开(公告)日：1990-06-05
申请号：JP29838988
申请日：1988-11-28
申请人： MITSUI TOATSU CHEMICALS
发明人： YOTSUMI KIYOSHI , HAYASHI KOZO , HASEYAMA RYUJI , SASAGAWA KATSUYOSHI
IPC分类号： C07C263/10 , C07C265/14
摘要： NEW MATERIAL:1,7-Diisocyanato-4-isocyanatopropyl-heptane expressed by formula I. USE:Useful as a raw material for various polyurethane resins, such as coatings, films, adhesives or fibers, especially as a curing agent for nonyellowing two-pack type polyurethane coatings. PREPARATION:The compound expressed by formula I is obtained by using cold heat two-stage phosgenation for directly reacting 1,7-diamino-4-aminopropyl- heptane expressed by formula II or a salt thereof with phosgene or phosgenation of an amine hydrochloride for suspending the compound expressed by formula II or the salt thereof in an inert solvent and reacting the compound with the phosgene. The compound expressed by formula II is novel and obtained by cyanoethylating nitromethane, denitrating the resultant compound and further subjecting the obtained product to hydrogenating reaction in the presence of a catalyst.

46. 发明专利

JP2581736B2 失效
公开(公告)号：JP2581736B2
公开(公告)日：1997-02-12
申请号：JP5504388
申请日：1988-03-10
申请人： MITSUI TOATSU CHEMICALS
发明人： SHIKAI KYOSHI , HASEYAMA RYUJI , HAYASHI KOZO , SASAGAWA KATSUYOSHI , YAMAGUCHI TERUHIRO
IPC分类号： C07C263/10 , C07C67/00 , C07C241/00 , C07C265/12 , C07C265/14 , C08G18/76 , C08G18/79 , C09J175/00 , C09J175/04

47. 发明专利

JPH06199986A POLYISOCYANATE, ITS PRODUCTION AND USE THEREOF 失效
公开(公告)号：JPH06199986A
公开(公告)日：1994-07-19
申请号：JP34819692
申请日：1992-12-28
申请人： MITSUI TOATSU CHEMICALS
发明人： HASEYAMA RYUJI , KATO TOSHIO , TAKAGI MASATOSHI , KAMEOKA TAIJI
IPC分类号： C07D239/60 , C07D273/04 , C08G18/72 , C08G18/79 , C09D175/00 , C09D175/04
摘要： PURPOSE:To obtain a new compound, excellent in curability, drying properties, flexibility and compatibility and useful as a curing agent, a coating, etc. CONSTITUTION:This compound of formula I {R1 and R2 are 2-12C alkylene; at least one thereof is formula II [k is 1-2; j and m are 1-5; h is 0-2]; n is 1-5}. Furthermore, the compound of formula I is obtained by reacting a polycyclic aliphatic diisocyanate of formula III such as 2,5- diisocyanatomethylbicyclo[2.2.1]heptane or together with a straight-chain aliphatic diisocyanate of formula IV (R3 is 2-12C alkylene) such as hexamethylene diisocyanatewith gaseous carbon dioxide in the presence of a catalyst.

48. 发明专利

JPH0687814A PRODUCTION OF ALPHA-@(3754/24)3-ISOCYANATOPHENYL)ETHYL ISOCYANATE 失效
公开(公告)号：JPH0687814A
公开(公告)日：1994-03-29
申请号：JP24059292
申请日：1992-09-09
申请人： MITSUI TOATSU CHEMICALS
发明人： KAMEOKA TAIJI , TAKAGI MASATOSHI , KATO TOSHIO , HASEYAMA RYUJI
IPC分类号： C07C263/10 , C07C265/14
摘要： PURPOSE:To obtain alpha-(3-isocyanatophenyl)ethyl isocyanate in a high purity and in a high yield, while preventing the generation of by-products, by reacting alpha-(3-aminophenyl)ethylamine hydrochloride with phosgene in an acetic acid ester under heating. CONSTITUTION:A salt (e.g. hydrochloride) of alpha-(3-amicophenyl) ethylamine of formula I is reacted with phosgene in an acetic acid ester at 92-110 deg.C to produce alpha-(3-isocyanatophenyl)ethyl isocyanate of formula II. The method permits to prevent the generation of by-products such as a tarry substance and is thereby industrially highly useful. The compound of formula II can be used as a raw material for polyurethane resins or polyurea resins in many fields such as foams, elastomers, synthetic leathers, coatings, adhesives and films.

49. 发明专利

JPH0665166A SEPARATION OF ALPHA-@(3754/24)M-NITROPHENYL)ALKYLAMINE AND ALPHA-@(3754/24)P-NITROPHENYL)ALKYLAMINE AND PRODUCTION OF ALPHA-@(3754/24)M-AMINOPHENYL)ALKYLAMINE AND ALPHA-@(3754/24)P-AMINOPHENYL) ALKYLAMINES USING THE SAME 失效
公开(公告)号：JPH0665166A
公开(公告)日：1994-03-08
申请号：JP21688392
申请日：1992-08-14
申请人： MITSUI TOATSU CHEMICALS
发明人： KATO TOSHIO , TAKAGI MASATOSHI , KAMEOKA TAIJI , HASEYAMA RYUJI
IPC分类号： C07B61/00 , C07C209/36 , C07C209/76 , C07C209/86 , C07C211/29 , C07C211/49
摘要： PURPOSE:To separate the subject compound useful as a polyimide, etc., efficiently and in high yield by converting a mixture containing m-derivative and p- derivative of a specific alpha-nitrophenylalkylamine into a sulfate and crystallizing the p-derivative. CONSTITUTION:A mixture containing at least m-derivative and p-derivative of an alpha-(nitrophenyl)alkylamine of the formula (R is H or 1-5C lower alkyl; nitro group is in m-position or p-position) is converted into a sulfate, the p- derivative is preferentially crystallized to separate the p-derivative from the m-derivative. The prepared alpha-(m-nitrophenyl)alkylamine or alpha-(p-nitrophenyl) alkylamine (sulfate) is catalytically reduced in particular to give an alpha-(m- aminophenyl)alkylamine or an alpha-(p-aminophenyl)alkylamine.

50. 发明专利

JPH05339214A 失效
公开(公告)号：JPH05339214A
公开(公告)日：1993-12-21
申请号：JP14393992
申请日：1992-06-04
申请人： MITSUI TOATSU CHEMICALS
发明人： KAMEOKA TAIJI , TAKAGI MASATOSHI , KATO TOSHIO , HASEYAMA RYUJI
IPC分类号： C07C209/40 , C07C211/49
摘要： PURPOSE:To produce the subject compound in a high yield and in a high purity by catalytically reducing nitroacetophenone oxime readily producible from nitroacetophenone as a raw material in the presence of a reducing catalyst under CO2. CONSTITUTION:Nitroacetophenone oxime of formula I (nitro group is o-position, m-position or p-position) is catalytically reduced in the presence of carbon dioxide in an organic solvent to obtain alpha-(aminophenyl)ethylamine of formula II. In the reaction the product can be obtained as the carbonate salt of alpha-(aminophenyl)ethylamine in a stable form, because the carbon dioxide turns into carbonic acid in the presence of water. Various intermediates such as amines or imines produced in the reduction reaction are stabilized as carbonate salts only by introducing the carbon dioxide into the reaction system, whereby the decompositions of the products and side reactions are suppressed. alpha-(Aminophenyl)ethylamine is useful as a curing agent for epoxy resins, polyurethane resins or polyurea resins, as a raw material for polyamides or polyimides, etc.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式