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1. 发明专利

JP2559463B2 失效
公开(公告)号：JP2559463B2
公开(公告)日：1996-12-04
申请号：JP13488588
申请日：1988-06-01
申请人： DAICEL CHEM
发明人： ICHIDA AKITO , MATSUMOTO YOSHITAKA
IPC分类号： C07C213/10 , C07B57/00 , C07C67/00 , C07C213/00 , C07C215/30 , C07C217/10 , C07C319/28 , C07C323/25 , C07D213/30 , C07D295/00 , C07D295/08 , G01N30/88

2. 发明专利

JPH01305091A OPTICAL RESOLUTION OF ESTERS OF OFLOXACIN 失效
公开(公告)号：JPH01305091A
公开(公告)日：1989-12-08
申请号：JP13488488
申请日：1988-06-01
申请人： DAICEL CHEM
发明人： ICHIDA AKITO , MATSUMOTO YOSHITAKA
IPC分类号： G01N30/88 , C07B57/00 , C07D498/06
摘要： PURPOSE:To industrially and advantageously separate an enantiomer of the subject compound useful as a synthetic antibiotic having excellent antifacterial action, etc., by subjecting an enantiomeric mixture of specific ofloxacin esters to an optical resolution using a resolving agent containing a polysaccharide derivative as an active ingredient. CONSTITUTION:An enantiomeric mixture of esters of ofloxacin expressed by the formula [R represents alkyl, cycloalkyl or (substituted) oromatic group; star indicates an asymmetric carbon atom] (example; ofloxacin methyl ester) is subjected to liquid chromatography using a column packed with a resolving agent containing a polysaccharide [example; cellulose tris(3,5-dimenthyl- phenylcarbamate)] as an active ingredient and using a mixed solvent of n-hexane/2-propanol/diethylamine=80/20/0.5 as a mobile phase to carry out optical resolution and separate an enantiomer of ofloxacin.

3. 发明专利

JPH0342044A CARRIER 失效
公开(公告)号：JPH0342044A
公开(公告)日：1991-02-22
申请号：JP17874489
申请日：1989-07-11
申请人： DAICEL CHEM
发明人： SHIBATA TORU , MATSUMOTO YOSHITAKA
IPC分类号： B01J31/26 , B01J20/26 , B01J20/281 , C07B57/00
摘要： PURPOSE:To reform the surface of a carrier for a reaction catalyst, etc., by binding an achiral or ceramic amide, urethane or a urea derivative to a solid consisting essentially of silicon dioxide to form the carrier. CONSTITUTION:An achiral or ceramic amide, urethane or a urea derivative are chemically or physically bound to the surface of a solid consisting essentially of silicon dioxide such as silica gel contg. >=50% dry weight of silicon dioxide (dried at about 200 deg.C for about one hour) to form a carrier. The achiral or ceramic amide, urethane or urea derivative have the partial structures of an amide derivative (CO-NR R ), a urethane derivative (O-CO-R ) and a urea derivative (NR -CO-NR R ) [R , R and R are a

4. 发明专利

JPS6137814A Production of lactone-grafted cellulose derivative 失效
标题翻译：生产引发纤维素的衍生物
公开(公告)号：JPS6137814A
公开(公告)日：1986-02-22
申请号：JP15859984
申请日：1984-07-31
申请人： Daicel Chem Ind Ltd
发明人： ISHIKURA MOTOSHI , MATSUMOTO YOSHITAKA
IPC分类号： C08F2/00 , C08F2/10 , C08G63/08 , C08L1/00
摘要： PURPOSE: To obtain the titled nonchalking derivative, by conducting ring-opening graft polymerization of a cyclic ester in the presence of a cellulose derivative of at least a specified water content by adding a ring-opening polymerization catalyst as a solution or dispersion in the cyclic ester.
CONSTITUTION: In the ring-opening graft polymerization of a cyclic ester in the presence of a cellulose derivative of a water content ≤0.4wt%, particularly preferably, ≤0.05wt%; a ring-opening polymerization catalyst is added in the form of a solution or dispersion in said cyclic ester to obtain the desired lactone-grafted cellulose derivative. It is preferable to use cellulose acetate, cellulose acetate butyrate, ethylcellulose, cyanoethylcellulose or benzylcellulose as said cellulose derivative, and it is advantageous to use ε-caprolactone as said cyclic ester.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了获得标题的非交错衍生物，通过在开环聚合催化剂作为溶液或分散体中加入环状聚合催化剂，通过在至少指定水含量的纤维素衍生物存在下进行环酯的开环接枝聚合酯。构成：在水含量<= 0.4wt％，特别优选<= 0.05wt％的纤维素衍生物存在下，环酯的开环接枝聚合反应; 在所述环状酯中以溶液或分散体的形式加入开环聚合催化剂以获得所需的内酯接枝的纤维素衍生物。优选使用乙酸纤维素，乙酸丁酸纤维素，乙基纤维素，氰乙基纤维素或苄基纤维素作为所述纤维素衍生物，并且使用ε-己内酯作为所述环酯是有利的。

5. 发明专利

JPH01305037A OPTICAL RESOLUTION OF COMPOUND HAVING TWO AROMATIC GROUPS ON ASYMMETRIC CENTER 失效
公开(公告)号：JPH01305037A
公开(公告)日：1989-12-08
申请号：JP13488588
申请日：1988-06-01
申请人： DAICEL CHEM
发明人： ICHIDA AKITO , MATSUMOTO YOSHITAKA
IPC分类号： C07C213/10 , C07B57/00 , C07C67/00 , C07C213/00 , C07C215/30 , C07C217/10 , C07C319/28 , C07C323/25 , C07D213/30 , C07D295/00 , C07D295/08 , G01N30/88
摘要： PURPOSE:To easily and accurately perform optical resolution of a mixture of enantiomers of a compound having two aromatic groups on the asymmetric center by using a separation agent containing a polysaccharide derivative as an active component. CONSTITUTION:A mixture of enantiomers of a compound of formula I or II (Ar and Ar' are different 5-14C unsubstituted or substituted aromatic groups; R1 is H or OH; R2 and R3 are 1-5C alkyl; X is O or S; m is 1-5; R4 is 1-10C chain alkyl; n and p are 1-5; * represents asymmetric carbon atom) is subjected to optical resolution with a separation agent containing a polysaccharide derivative as an active component. The polysaccharide derivative is preferably cellulose, amylose, beta-1,4-chitosan, chitin, etc., which are easily available in the form of high-purity polysaccharide. It is generally supported on a porous carrier having particle diameter of 1-300mum and average pore diameter of 50-10,000Angstrom . The optical resolution is carried out by chromatography and the obtained compound is used as pharmaceuticals.

6. 发明专利

JPS61221226A PRODUCTION OF POLYCARBONATE BY MELT PROCESS 失效
公开(公告)号：JPS61221226A
公开(公告)日：1986-10-01
申请号：JP6291585
申请日：1985-03-27
申请人： DAICEL CHEM
发明人： ISHIKURA MOTOYUKI , MATSUMOTO YOSHITAKA
IPC分类号： C08G63/00 , C08G64/00 , C08G64/16 , C08G64/20 , C08G64/30
摘要： PURPOSE:To obtain a polycarbonate excellent in saponification stability and mechanical properties, by using a combination of a specified aromatic bishydroxy compound with an alicyclic bishydroxy compound as the bishydroxy compound component. CONSTITUTION:A bishydroxy compound component comprising an aromatic bishydroxy compound (A) comprising bisphenol A and o,o,o',o'-tetraalkyl- substituted bisphenol A and 0.1-40mol%, based on component A, alicyclic bishydroxy compound (B) (e.g., 1,3-cyclohexanediol or 1,4-cyclohexanediol) is prepared. The purpose polycarbonate is obtained by melt-reacting this bishydroxy compound component with a carbonate (e.g., diphenyl carbonate). The obtained polycarbonate can be suitably used as a material for automobile parts, electronic parts, etc.

7. 发明专利

JPS61166830A PRODUCTION OF POLYCARBONATE HAVING HIGH MOLECULAR WEIGHT BY FUSION METHOD 失效
公开(公告)号：JPS61166830A
公开(公告)日：1986-07-28
申请号：JP728785
申请日：1985-01-18
申请人： DAICEL CHEM
发明人： ISHIKURA MOTOYUKI , MATSUMOTO YOSHITAKA
IPC分类号： C08G63/00 , C08G64/20 , C08G64/30
摘要： PURPOSE:To produce a polycarbonate having high molecular weight without lowering the excellent physical properties of polycarbonate resin, by adding a small amount of an alicyclic bishydroxy compound to an aromatic bishydroxy compound, and reacting with a carbonic acid ester under melting. CONSTITUTION:(A) An aromatic bishydroxy compound, preferably bisphenol A, etc. is mixed with (B) 0.1-40mol%, preferably 1-10mol% (based on the component A) alicyclic bishydroxy compound, preferably 1,3-cyclohexanediol or 1,4-cyclohexanediol and (C) 1-1.2mol, preferably 1-1.1mol (based on 1mol of A+B) of a carbonic acid ester, preferably diphenyl carbonate, etc. The mixture is charged to a reactor, added with a catalyst (e.g. lithium hydroxide), heated, and reacted while removing the produced monohydroxy compound from the reaction system e.g. by evacuation, etc., until the formation of distillate ceases.

8. 发明专利

JPS60221476A BONDING COMPOSITION 失效
公开(公告)号：JPS60221476A
公开(公告)日：1985-11-06
申请号：JP7670284
申请日：1984-04-18
申请人： DAICEL CHEM
发明人： ASAMI MASAHIRO , MATSUMOTO YOSHITAKA
IPC分类号： C08G63/00 , C08G63/08 , C09J11/04 , C09J167/00
摘要： PURPOSE:A bonding composition, containing a graft copolymer obtained by subjecting a cyclic ester to ring opening reaction in the presence of a cellulosic derivative, and capable of giving precoating layers having improved heat and solvent resistance. CONSTITUTION:A bonding composition obtained by reacting a cyclic ester, e.g. propiolactone or beta-butyrolactone, polymerizable by ring opening reaction in the presence of at least one of cellulosic derivative containing 1-20wt% hydroxyl groups in the molecule, e.g. cellulose acetate or ethyl cellulose and a catalyst at 120-230 deg.C for 0.1-96hr, and dissolving the resultant graft copolymer in an organic solvent.

9. 发明专利

JPS63156538A SEPARATING AGENT 失效
公开(公告)号：JPS63156538A
公开(公告)日：1988-06-29
申请号：JP15847087
申请日：1987-06-25
申请人： DAICEL CHEM
发明人： OKAMOTO YOSHIO , HATADA KOICHI , YUKI YOICHI , MATSUMOTO YOSHITAKA
IPC分类号： B01J20/22 , B01J20/24 , B01J20/281 , B01J20/291 , C07B31/00 , C07B57/00 , C07C29/76 , C07C33/46 , C07C45/00 , C07C45/79 , C07C49/92 , C07C67/00 , C07F15/06 , C08B15/06 , G01N30/88
摘要： PURPOSE:To separate various compds., especially optical isomers, by preparing the separating agent with the powder of a polysaccharide derivative wherein at least 10% of the hydroxyl group is substituted for a phenylcarbamate group. CONSTITUTION:The powder of the polysaccharide carbamate derivative wherein at least 10% of the hydroxyl group is substituted for the group shown by formula I is used as the separating agent (R -R show a hydrogen atom, a 1-3C alkyl group, and a chlorine atom). The polysaccharide carbamate derivative can be obtained by allowing a polysaccharide to react with the corresponding isocyanate in an appropriate solvent with a Lewis base of a tertiary amine, etc., or a Lewis acid of a tin compd., etc., as a catalyst. When a compd. and its optical isomer are separated by the separating agent, chromatography such as gas chromatography and liq. chromatography is applied.

10. 发明专利

JPS6317294B2 失效
公开(公告)号：JPS6317294B2
公开(公告)日：1988-04-13
申请号：JP4783683
申请日：1983-03-24
申请人： DAICEL CHEM
发明人： IKEDA NAOKI , MATSUMOTO YOSHITAKA
IPC分类号： B05D7/02 , B05D3/02 , B05D3/06 , C08J7/04

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