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41. 发明专利

JPH01139808A AROMATIC POLYAMIDE FIBER WITH HIGH CONFIGURATION STABILITY AT HIGH TEMPERATURES 失效
公开(公告)号：JPH01139808A
公开(公告)日：1989-06-01
申请号：JP29799187
申请日：1987-11-25
申请人： KURARAY CO , MITSUI TOATSU CHEMICALS
发明人： OSAWA MASANORI , SEI KOHEI , JINNO MASAHIRO , OMORI AKIO , ASANO MASAJI
IPC分类号： D01F6/60 , D01F6/80
摘要： PURPOSE:To provide the title fiber of low heat shrinkage even at temperatures higher than the melting point, free from fiber fusing when burned, to be used for fireman uniforms etc., having functional group or halogen atom at the ortho site of the phenylene group directly bonded to the e.g., nitrogen atom in the amide group in an aromatic polyamide. CONSTITUTION:An aromatic dicarboxylic acid compound such as terephthalic acid is allowed to react, in a solvent, with 4-chloro-1,3-phenylenediisocyanate, while heating, to carry out a polymerization followed by vacuum filtration of the resulting polymer solution to prepare a spinning stock solution. Thence, this solution is delivered through a spinneret followed by coagulation in a coagulating bath, and the resultant yarn is subjected to dry heat drawing, thus obtaining the objective fiber having halogen atom or such functional group as amino, hydroxyl, sulfonic acid or carboxyl group at the ortho site of the phenylene group directly bonded to the nitrogen and/or carbon atom(s) in the amide group in the aromatic polyamide. This fiber has the following characteristics: 1. melting point TM>=350 deg.C, 2. TM-TEX>=30 deg.C(TEX refers to exothermic phenomenon initiation temperature), 3. degree of crystallinity XC>=10%, 4: fiber breaking elongation DE>=10%, 5. dry heat shrinkage rate DSR(TM)

42. 发明专利

JPS6454019A PRODUCTION OF HEAT-RESISTANT POLYMER 失效
公开(公告)号：JPS6454019A
公开(公告)日：1989-03-01
申请号：JP11709788
申请日：1988-05-16
申请人： MITSUI TOATSU CHEMICALS
发明人： KATSUOKA HIROTOSHI , OSAWA MASANORI , SEI KOHEI , JINNO MASAHIRO , MATSUYAMA AKIO , MIZUTANI KAZUMI
IPC分类号： C08G18/08 , C08G18/00 , C08G18/34 , C08G73/10
摘要： PURPOSE:To obtain the title polymer excellent in heat resistance, radiation resistance, electrical properties, flame retardancy, etc., by reacting an organic diissocyanate with an organic polycarboxylic acid (anhydride) in the presence of an alkali metal compound in a specified solvent. CONSTITUTION:An N,N-dimethylalkyleneurea (e.g., N,N'-dimethylethyleneurea) which has been optionally treated with a dehydrating agent such as molecular sieve or alumina is stored in an atmosphere of an inert gas (e.g., N2) of a purity >=99.9% and a dew point

43. 发明专利

JPS6424820A PREPARATION OF HEAT-RESISTANT POLYMER 失效
公开(公告)号：JPS6424820A
公开(公告)日：1989-01-26
申请号：JP18125487
申请日：1987-07-22
申请人： MITSUI TOATSU CHEMICALS
发明人： KATSUOKA HIROTOSHI , OSAWA MASANORI , SEI KOHEI , JINNO MASAHIRO , MATSUYAMA AKIO , MIZUTANI KAZUMI
IPC分类号： C08G18/08 , C08G18/00
摘要： PURPOSE:To prepare a heat-resistant polymer which provides an oriented film having a high strength, by reacting an org. diisocyanate and an org. polybasic carboxylic acid (anhydride) in the presence of an alkali metal fluoride in a specified solvent. CONSTITUTION:The object heat-resistant polymer is prepared by reacting an org. diisocyanate (e.g., tolylene-2,4-diisocyanate) and an org. polybasic carboxylic acid (anhydride) (e.g., terephthalic acid) in the presence of an alkali metal fluoride (e.g., cesium fluoride) in N,N'-dimethylethyleneurea having an N,N'- dimethylethylideneurea content of at most 50ppm as a solvent. The heat-resistant polymer obtd. above is oriented to give an oriented film having a high strength, which is effective as highly functional industrial materials such as various industrial materials, composite materials, reinforcing materials and insulating materials and has extensive applications in electrical and electronic fields.

44. 发明专利

JPS641716A PRODUCTION FOR AROMATIC POLYAMIDE 失效
公开(公告)号：JPS641716A
公开(公告)日：1989-01-06
申请号：JP15558887
申请日：1987-06-24
申请人： MITSUI TOATSU CHEMICALS
发明人： MATSUYAMA AKIO , OSAWA MASANORI , SEI KOHEI , JINNO MASAHIRO , MIZUTANI KAZUMI , KATSUOKA HIROTOSHI
IPC分类号： C08G18/34 , C08G18/40
摘要： PURPOSE:To obtain the titled polymer having excellent mechanical strength, excellent tensile strength especially in the case of orientated film in reaction between the aromatic diisocyanate and an aromatic dicarboxylic acid, by adding an aromatic diisocyanate under a specific condition. CONSTITUTION:First, a mol. of an aromatic diisocyanate is reacted with b mol. of an aromatic dicarboxylic acid in the presence of an alkali metallic compound in a solvent at >=100 deg.C under a condition of 0.9 =1hr.

45. 发明专利

JPS63317510A PRODUCTION OF HEAT-RESISTANT POLYMER 失效
公开(公告)号：JPS63317510A
公开(公告)日：1988-12-26
申请号：JP15147987
申请日：1987-06-19
申请人： MITSUI TOATSU CHEMICALS
发明人： JINNO MASAHIRO , OSAWA MASANORI , SEI KOHEI , MATSUYAMA AKIO , MIZUTANI KAZUMI , KATSUOKA HIROTOSHI
IPC分类号： C08G18/22 , C08G18/34
摘要： PURPOSE:To obtain a polymer, having excellent heat resistance, heat insulating properties, electrical characteristics, flame retardance, etc., and useful as industrial materials, adhesives, etc., by reacting an organic diisocyanate with an organic polyfunctional carboxylic acid (anhydride) using a complex compound of an alkaline metallic fluoride as a catalyst. CONSTITUTION:An organic diisocyanate (e.g. 1,2-diisocyanatoethane or 1,5-naphthalene diisocyanate) is reacted with one or more selected from an organic polyfunctional carboxylic acid (e.g. malonic acid or butane-1,2,4-tricarboxylic acid) or organic polyfunctional carboxylic acid anhydride (e.g. trimellitic acid anhydride). In the process, a complex compound of an alkaline metallic fluoride [e.g. MF.HF (M is alkaline metal)] is used as a catalyst to normally carry out the reaction at 100-200 deg.C temperature in an atmosphere of nitrogen for 1-20hr to produce the aimed heat-resistant polymer.

46. 发明专利

JPS63315699A HEAT RESISTANT SHEET LIKE ARTICLE 失效
公开(公告)号：JPS63315699A
公开(公告)日：1988-12-23
申请号：JP14623787
申请日：1987-06-13
申请人： MITSUI TOATSU CHEMICALS , KURARAY CO
发明人： OSAWA MASANORI , JINNO MASAHIRO , HAMADA TOSHIHIRO , OMORI AKIO
IPC分类号： C08J5/18 , D21H13/26

47. 发明专利

JPS63314229A PRODUCTION OF HEAT-RESISTANT POLYMER 失效
公开(公告)号：JPS63314229A
公开(公告)日：1988-12-22
申请号：JP15025087
申请日：1987-06-18
申请人： MITSUI TOATSU CHEMICALS
发明人： JINNO MASAHIRO , OSAWA MASANORI , SEI KOHEI , MATSUYAMA AKIO , MIZUTANI KAZUMI , KATSUOKA HIROTOSHI
IPC分类号： C08G18/22 , C08G18/34
摘要： PURPOSE:To produce a heat-resistant polymer excellent in radiation resistance, hot dimensional stability, etc., by reacting an organic diisocyanate with an organic polycarboxylic acid (anhydride) in the presence of a dissolved alkali metal fluoride catalyst. CONSTITUTION:A catalyst solution is obtained by dissolving an alkali metal fluoride (e.g., KF) as a catalyst in a solvent such as N-methyl-2-pyrrolidone or dimethylacetamide. An organic diisocyanate (e.g., 1,2-diisocyanatoethane) is reacted with an organic polycarboxylic acid (anhydride) (e.g., trimellitic anhydride) for 1-20hr at 20-250 deg.C and a molar ratio of 1:0.70-1.30 in the presence of 0.01-10mol.% said catalyst solution in an inert organic solvent in an inert gas atmosphere.

48. 发明专利

JPS63309640A HEAT RESISTANT HIGH TENSILE SPUN YARN 失效
公开(公告)号：JPS63309640A
公开(公告)日：1988-12-16
申请号：JP14657587
申请日：1987-06-11
申请人： KURARAY CO , MITSUI TOATSU CHEMICALS
发明人： HAMADA TOSHIHIRO , OMORI AKIO , OSAWA MASANORI , JINNO MASAHIRO
IPC分类号： D01F6/60 , D02G3/02

49. 发明专利

JPS63309615A HEAT-RESISTANT ORGANIC SYNTHETIC YARN HAVING EXCELLENT HIGH-EXCELLENT CONFIGURATION STABILITY 失效
公开(公告)号：JPS63309615A
公开(公告)日：1988-12-16
申请号：JP14550487
申请日：1987-06-10
申请人： KURARAY CO , MITSUI TOATSU CHEMICALS
发明人： OMORI AKIO , ASANO MASAJI , OSAWA MASANORI , SEI KOHEI , JINNO MASAHIRO
IPC分类号： C08G69/32 , D01F6/60
摘要： PURPOSE:To obtain polymetaphenylene isophthalate yarn having a specific melting point, specific crystallinity, specific elongation and specific dry shrinkage factor, excellent fiber performance and improved configuration stability even at high temperature. CONSTITUTION:Aromatic polyamide yarn which has a repeating unit shown by formula I [Ar1 is bifunctional phenylene residue shown by formula II or formula III (R is H or CH3) and has repeating unit with at least one CH3 at the ortho position of phenylene group C directly bonded to N of amide bond; Ar2 is bifunctional phenylene residue shown by formula IV and has repeating unit containing carbonyl carbon atom of amide bond directly bonded to 1, 3 positions or 1, 4 positions of phenylene group C and the ratio of 1, 3 position form:1, 4 position form of 100:0-80:20, melting point Tm, heat generation starting temperature Tex, crystallinity Xc, elongation DE, dry shrinkage factor DSR (Tm) at the melting point and dry shrinkage factor DSR (Tm+55 deg.C) at the melting point+55 deg.C which satisfy equations V-X.

50. 发明专利

JPS63286416A PRODUCTION OF AROMATIC POLYAMIDE 失效
公开(公告)号：JPS63286416A
公开(公告)日：1988-11-24
申请号：JP12004387
申请日：1987-05-19
申请人： MITSUI TOATSU CHEMICALS
发明人： MATSUYAMA AKIO , OSAWA MASANORI , SEI KOHEI , JINNO MASAHIRO , MIZUTANI KAZUMI , KATSUOKA HIROTOSHI
IPC分类号： C08G18/34
摘要： PURPOSE:To obtain an aromatic polyamide having excellent mechanical strength, especially tensile strength without coloring, by using tolylene-2,4-diisocyanate stored in an inert gas atmosphere as a raw material. CONSTITUTION:(A) Tolylene-2,4-diisocyanate stored in an inert gas (e.g. nitrogen or helium) is reacted with (B) terephthalic acid and/or isophthalic acid in the presence of an alkaline metallic compound in a solvent at >=100 deg.C to afford the aimed aromatic polyamide. Furthermore, the molar ration of the components (B) to (A) is preferably 0.95-1.10.

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