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1. 发明专利

JPH06128275A CYCLIC BISFLUOROSILYL COMPOUND 失效
公开(公告)号：JPH06128275A
公开(公告)日：1994-05-10
申请号：JP27460592
申请日：1992-10-13
申请人： MITSUI TOATSU CHEMICALS , AGENCY IND SCIENCE TECHN
发明人： KOBAYASHI MINEO , MITSUZUKA MASAHIKO , ITO MASAYOSHI , TANAKA MASATO , UCHIMARU YUKO
IPC分类号： B01J31/22 , C07B61/00 , C07F7/12
摘要： PURPOSE:To obtain a new compound useful as a raw material for heat-and combustion-resistant polymers. CONSTITUTION:The compound of formula I, e.g. benzo[b]-5,6-bis(dimethylfluorosilyl)-1,1,4,4-tetramethyl-1,4-disilacy clohexa-2,5-diene. This compound of formula I is obtained by reacting, e.g. a compound of formula II with a compound of formula III in the presence of a catalyst which is a complex of any of platinum, palladium or ruthenium and a ligand such as NEt3, etc., as a cocatalyst, as necessary, in a solvent, preferably at 50-100 deg.C for 30min to 10hr.

2. 发明专利

JPH06128272A CYCLIC BISHYDROSILYL COMPOUND 失效
公开(公告)号：JPH06128272A
公开(公告)日：1994-05-10
申请号：JP27460692
申请日：1992-10-13
申请人： MITSUI TOATSU CHEMICALS , AGENCY IND SCIENCE TECHN
发明人： KOBAYASHI MINEO , MITSUZUKA MASAHIKO , ITO MASAYOSHI , TANAKA MASATO , UCHIMARU YUKO
IPC分类号： C07F7/08
摘要： PURPOSE:To obtain a new compound suitable for a raw material, etc., for heat resistant and flame resistant polymers, etc. CONSTITUTION:The subject compound is benzo [b]-5,6-bis(dimethylhydrosilyl)-1,1-4,4-tetramethyl-1-,4-disilacyclohe xa-2,5-diene expressed by formula I. Here, the compound of formula I is obtained by reacting a compound of formula II with a metal hydride such as LiH.

3. 发明专利

JPH06128273A POLYCYCLIC ORGANOSILICON COMPOUND 失效
公开(公告)号：JPH06128273A
公开(公告)日：1994-05-10
申请号：JP27460492
申请日：1992-10-13
申请人： MITSUI TOATSU CHEMICALS , AGENCY IND SCIENCE TECHN
发明人： KOBAYASHI MINEO , MITSUZUKA MASAHIKO , ITO MASAYOSHI , TANAKA MASATO , UCHIMARU YUKO
IPC分类号： C07F7/08 , C07F7/12 , C08G77/48 , C08G77/60
摘要： PURPOSE:To obtain a new compound suitable for a raw material for heat resistant and flame resistant polymers. CONSTITUTION:The compound is expressed by formula I (n is 2-20). E.g., benzo[c]-8,9-bis(dimethylfluorosilyl)-2,2,5,5,7,7,10,10-octamethyl-2,5 ,7,10- tetrasilabicyclo[4,4,0]deca-1,3,8-triene. The compound of formula I is obtained, e.g. by reacting a compound of formula II (n is 1-19) (with a compound of formula III in the presence of a catalyst such as platinum, palladium, etc., [preferably Pt(dba)2, etc.] and a cocatalyst, in a solvent when needed and preferably at 20-150 deg.C for 1-100 hours.

4. 发明专利

JPH0680678A DISILYLACETYLENE COMPOUND 失效
公开(公告)号：JPH0680678A
公开(公告)日：1994-03-22
申请号：JP19416892
申请日：1992-07-21
申请人： MITSUI TOATSU CHEMICALS , AGENCY IND SCIENCE TECHN
发明人： KOBAYASHI MINEO , MITSUZUKA MASAHIKO , ITO MASAYOSHI , TANAKA MASATO , UCHIMARU YUKO
IPC分类号： C07F7/12
摘要： PURPOSE:To provide a new disilylacetylene compound useful as a raw material for a heat-resistant and combustion resistant polymer, its production process and a new process for the production of its intermediate. CONSTITUTION:The compound of the formula R R FSiCidenticalCSiR R F (R , R , R and R are 1-10C alkyl, 6-10C aryl or 7-10C aralkyl which may be the same or different). The compound can be synthesized by reacting a compound of the formula R R ClSiCEidenticalCSiR R Cl with a metal fluoride.

5. 发明专利

JPH0931181A PRODUCTION OF POLYHYDROXYCARBOXYLIC ACID 失效
公开(公告)号：JPH0931181A
公开(公告)日：1997-02-04
申请号：JP17836395
申请日：1995-07-14
申请人： MITSUI TOATSU CHEMICALS
发明人： TSURUTA SATOSHI , ITO HIROYUKI , KOBAYASHI MINEO , SAKURAI HOMARE
IPC分类号： C08G63/78 , C08L101/16
摘要： PROBLEM TO BE SOLVED: To efficiently obtain a polyhydroxycarboxylic acid by returning distilled solvent into the system after dehydration while dispersing an inert gas in the reaction liquid drawn out and returning the dispersion into the system again in the polycondensation through dehydration of a hydroxycarboxylic acid in the presence of an organic solvent. SOLUTION: A process for producing a polyhydroxycarboxylic acid by the polycondensation through dehydration of a hydroxycarboxylic acid compound or an oligomer thereof in an organic solvent in the presence or absence of a catalyst, wherein, while the mixture is subjected to polycondensation in a model reactor with agitating blades, a part or the whole of the distillate solvent is returned into the reactor after treatment with a desiccant or purification by distillation, and the reaction liquid of a polyhydroxycarboxylic acid obtained by the polycondensation is drawn out from the bottom of the reactor and fed, together with an inert gas and/or the solvent to be returned into the reactor, into a static mixer to disperse the gas and the solvent in the reaction liquid and return the dispersion to the model reactor again.

6. 发明专利

JPH07228678A PRODUCTION OF POLYHYDROXYCARBOXYLIC ACID 失效
公开(公告)号：JPH07228678A
公开(公告)日：1995-08-29
申请号：JP11245294
申请日：1994-05-26
申请人： MITSUI TOATSU CHEMICALS
发明人： ICHIKAWA FUMIAKI , KOBAYASHI MINEO , OTA MASAHIRO , YOSHIDA IKUNORI , OBUCHI SEIJI , ITO HIROYUKI
IPC分类号： C08G63/06 , C08G63/78
摘要： PURPOSE:To obtain the subject compound useful as a high-molecular weight biodegradable polymer industrially and advantageously by subjecting a hydroxycarboxylic acid to thermal polycondensation while separating and removing a low-boiling component by using an upright high-viscosity reactor in a process for subjecting the hydroxycarboxylic acid to polycondensation through dehydrogenation. CONSTITUTION:In a process for subjecting a hydroxycarboxylic acid (preferably lactic acid, glycolic acid, 3-hydroxybutyric acid or 4-hydroxybutyric acid) to polycondensation through dehydrogenation optionally in the presence of a catalyst and optionally in an organic solvent, an upright high-viscosity reactor is used and the thermal polycondensation is carried out while separating and removing a low-boiling component to give the objective component. The upright high-viscosity reactor is provided with a ribbon-shaped stirring blade and the blade is preferably supported by a frame.

7. 发明专利

JPH06298913A PRODUCTION OF POLYHYDROXYCARBOXYLIC ACID 失效
公开(公告)号：JPH06298913A
公开(公告)日：1994-10-25
申请号：JP8749693
申请日：1993-04-14
申请人： MITSUI TOATSU CHEMICALS
发明人： KOBAYASHI MINEO , ITO HIROYUKI , OGAMI KUNINOBU , JINNO YOSHITSUGU
IPC分类号： C08G63/06 , C08G63/78 , C08L101/16
摘要： PURPOSE:To obtain a polyhydroxycarboxylic acid useful as a biodegradable polymer in high efficiency in a short time by purifying a distilled solvent in azeotropic dehydration of a hydroxycarboxylid acid in an organic solvent, vaporizing and introducing to the reaction system. CONSTITUTION:A hydroxycarboxylic acid such as lactic acid or glycolic acid or its oligomer is subjected to azeotropic dehydration in an organic solvent such as hydrocarbon-based, halogen-based or ketone-based organic solvent, the distilled solvent is treated with a desiccant or distilled and purified. When the solvent is returned to the system again, the solvent is heated by a heat exchanger, partially or wholly vaporized and introduced into a reaction solution to give the objective polymer.

8. 发明专利

JPH05230070A PRODUCTION OF ALKYLSILANE FROM MONOSILANE 失效
公开(公告)号：JPH05230070A
公开(公告)日：1993-09-07
申请号：JP3617792
申请日：1992-02-24
申请人： MITSUI TOATSU CHEMICALS
发明人： KOBAYASHI MINEO , ITO MASAYOSHI , UCHIUMI TETSUYOSHI , IWATA KENJI , MITSUZUKA MASAHIKO
IPC分类号： C07F7/08
摘要： PURPOSE:To synthesize an alkylsilane in one stage using SiH4 as a starting raw material. CONSTITUTION:The objective producing method for alkylsilane expressed by the general formula RnSiH4-n [(n) is 1-3] is carried out by directly reacting SiH4 with an organic alkali metal compound expressed by the general formula RM (M is alkali metal element; R is hydrocarbon group such as alkyl, alkenyl, alkynyl or phenyl), an organic alkaline earth metal compound expressed by the general formula RMX (M is alkaline earth metal element; X is halogen element) or the general formula R2M (M is alkaline earth metal) in a solvent (e.g. an ether-based solvent, a hydrocarbon-based solvent or its mixed solvent) at -80 deg.C to 200 deg.C.

9. 发明专利

JPH04198186A PRODUCTION OF ORGANOSILICON COMPOUND 失效
公开(公告)号：JPH04198186A
公开(公告)日：1992-07-17
申请号：JP32268290
申请日：1990-11-28
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO MASAYOSHI , YANAGAWA NORIYUKI , UCHIUMI TETSUYOSHI , KOBAYASHI MINEO , IWATA KENJI
IPC分类号： C07F7/08 , C07F7/12
摘要： PURPOSE:To industrially and advantageously obtain the subject compound by reacting a silicon compound with a halogenated hydrocarbon and further reacting the resultant silicon compound with a silane compound. CONSTITUTION:A compound expressed by formula I (R is H, alkyl, phenyl, acyl, alkylamino, etc.; m is 0-2) and a compound expressed by the formula R X (X is F, Cl, I, etc.; R is alkyl, acetyl, etc.) are subjected to dehydrohalogenating reaction at 300-800 deg.C to provide a compound expressed by formula II. The chlorine atoms in the aforementioned compound expressed by formula II and hydrogen atoms in a compound expressed by formula III (n is 1-3) are subjected to exchange reaction in the presence of, e.g. a radical initiator at -50 to +500 deg.C to afford the objective compound expressed by formula IV.

10. 发明专利

JPH04159285A PRODUCTION OF DISILANE DERIVATIVE 失效
公开(公告)号：JPH04159285A
公开(公告)日：1992-06-02
申请号：JP28351790
申请日：1990-10-23
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO MASAYOSHI , IWATA KENJI , KOBAYASHI MINEO
IPC分类号： B01J23/24 , B01J23/32 , B01J23/40 , B01J23/74 , B01J27/10 , B01J31/20 , B01J31/22 , B01J31/24 , C07B61/00 , C07F7/08
摘要： PURPOSE:To economically obtain the subject non-chlorine-based derivative, rich in reactivity, having Si-H bond and useful as functional materials, etc., by subjecting a specific silicon hydride and a specified hydrocarbon compound to hydrosilylating reaction in the presence of a specific catalyst. CONSTITUTION:Si2H6 or Si3H8 and a hydrocarbon compound having at least one C=C bond or CidenticalC bond in the molecule are subjected to hydrosilylating reaction in the presence of at least one of a catalyst composed of a group VII or VIIA metal of the periodic table or a catalyst (preferably Pt, Pb, Fe, etc.) containing a compound of the aforementioned metal in the catalyst constituent component at a temperature within the range of 0 to 300 deg.C to afford the objective compound. Furthermore, the objective compound is preferably alkylsilanes or alkenylsilanes expressed by the formula RnSiHn-4 (R is hydrocarbon; n is 1-4).

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