Toyo Soda Manufacturing Co., Ltd.

Takasago International Corporation

Other

Tsutomu Hashimoto

Toshimitsu Hagiwara

Yoji Hori

Toru Seita

Akihiko Shimizu

Yoshio Kato

Yukiharu Iwaya

Amane Mochizuki

Takashi Miura

Tohru Kobayashi

Nobuyuki Baba

Ken Suzuki

Shinya Yamada

Masaru Uemura

Yujiro Kosaka

Yoshiki Okeda

Shusaku Nakano

Yuji Nakayama

Sotaro Miyano

Shuichi Oi

Tetsutaro Hattori

Kazuyuki Fukano

Yutaka Suzuki

Yoshiki Hasegawa

Kuniyuki Tokunaga

This invention provides a polymerizable liquid crystal compound having a large value of &Dgr;n/n, excellent in coating properties on an alignment film and easily aligned. Disclosed is a polymerizable liquid crystal compound having at least one polymerizable reactive group and showing nematic liquid crystal properties, having a &Dgr;n/n value of 0.14 or more wherein n is average refractive index and &Dgr;n is extraordinary light refractive index (ne) minus ordinary light refractive index (no), and being aligned by application onto an alignment film.

Polymerizable liquid crystal compound and optical film

The invention has an object of safely and simply preparing a large amount of a ruthenium metathesis catalyst, which is used as a catalyst for a carbon-carbon bond formation using, particularly, a metathesis reaction. The metathesis catalyst has the following complex composition (A) or (B). The composition (A) includes RuX,(arene)(PR,R,R,) and R,CHX,, R,C &equiv;CH or R,CHX,and a reducing agent, wherein X,and X,respectively are a halogen atom; arene is a hydrocarbon having a benzene ring; R,, R,and R,, which may be the same or different, respectively are an alkyl group having 1-8 carbon atoms, a cycloalkyl group having 3-8 carbon atoms or an optionally substituted aryl group, wherein the substituent group is an alkyl group having 1-8 carbon atoms, an alkoxy group having 1-8 carbon atoms, an alkylamino group having 1-8 carbon atoms or a halogen atom; R,is an alkyl group which has 1-8 carbon atoms and may have an ether bond or an ester bond, an optionally subsituted aryl group, wherein the substituent group is a halogen atom or a hydroxyl group; or cycloalkyl group having 3-8 carbon atoms; and R,is an optionally substituted alkyl group which has 1-8 carbon atoms and may have an ether bond or an ester bond, wherein the substituent group is a halogen atom or a hydroxyl group, an aryl group or a cycloalkyl group having 3-8 carbon atoms. The composition B includes &lsqb;RuX,(arene)&rsqb;,, PR,R,R,, R,C&equiv;CH or R,CHX,and a reducing agent, wherein X,, arene, R,, R,, R,, R,and R,are the same as defined above.

Ruthenium metathesis catalyst and method for producing olefin reaction product by metathesis reaction using the same

The invention has an object of safely and simply preparing a large amount of a ruthenium metathesis catalyst, which is used as a catalyst for a carbon-carbon bond formation using, particularly, a metathesis reaction. The metathesis catalyst has the following complex composition (A) or (B). The composition (A) includes RuX,(arene)(PR,R,R,) and R,CHX,, R,C&equiv;CH or R,CHX,and a reducing agent, wherein X,and X,respectively are a halogen atom; arene is a hydrocarbon having a benzene ring; R,, R,and R,, which may be the same or different, respectively are an alkyl group having 1-8 carbon atoms, a cycloalkyl group having 3-8 carbon atoms or an optionally substituted aryl group, wherein the substituent group is an alkyl group having 1-8 carbon atoms, an alkoxy group having 1-8 carbon atoms, an alkylamino group having 1-8 carbon atoms or a halogen atom; R,is an alkyl group which has 1-8 carbon atoms and may have an ether bond or an ester bond, an optionally subsituted aryl group, wherein the substituent group is a halogen atom or a hydroxyl group; or cycloalkyl group having 3-8 carbon atoms; and R,is an optionally substituted alkyl group which has 1-8 carbon atoms and may have an ether bond or an ester bond, wherein the substituent group is a halogen atom or a hydroxyl group, an aryl group or a cycloalkyl group having 3-8 carbon atoms. The composition B includes &lsqb;RuX,(arene)&rsqb;,, PR,R,R,, R,C&equiv;CH or R,CHX,and a reducing agent, wherein X,, arene, R,, R,, R,, R,and R,are the same as defined above.

This invention is concerned with a ruthenium-iodo-optically active bidentate phosphine complex of the formula (I):

Ruthenium-I0D0-optically active phosphine complex

The present invention provides a process for producing a .beta.-lactone derivative by reacting an aldehyde represented by formula (1):

Process for producing a .beta.-lactone derivative

A packing material for liquid chromatography comprising monovinyl aromatic monomer and divinyl or polyvinyl aromatic monomer is disclosed, wherein, in gel permeation chromatography, exclusion limit molecular weight is not less than 1.times.10.sup.3 in terms of standard polystyrene, average particle diameter lies within a rage of 0.5 to 50 .mu.m and the constitution rate of divinyl or polyvinyl aromatic monomer in copolymer particles is not less than 60% by weight, and a method for the preparation thereof is claimed, wherein suspension polymerization is carried out in a mixed aqueous solution containing organic colvent which dissolves whole monomer containing not less than 60% by weight of divinyl or polyvinyl aromatic monomer in whole monomer by amounts of 50 to 300% by weight of the solvent to both monomers and does not dissolve the copolymer of these monomers and radical polymerization initiator.

Packing material for liquid chromatography and method for the

A gel permeation chromatograph system comprises a series of a solvent tank, a line filter and a distribution block; a pair of series of constant flow feeding pumps and sample injecting devices which are connected to the distribution block under dividing into a sample side passage and a reference side passage; a pair of analysis columns in each passage; and a detector connected to the outlet side passages of said analysis columns.

Gel permeation chromatograph system

A carrier for liquid chromatography having main units ##STR1## wherein n=0 or an integer of 1 to 3; m=0 or 1; q=an integer of 1 to 3; p=0 or 1; w=90 to 16; x=57 to 2; y=0 to 30; z=5 to 30; B represents adenine, guanine, thymine, uracil or cytosine; X' represents OH Cl, Br or I; and CM represents styrene, a substituted styrene, acrylonitrile, a substituted acrylonitril, acrylic acid or a substituted acrylic acid and CCM represents crosslinking agent having two or more unsaturated group such as ethylene glycol diacrylate, divinylbenzene etc.

Carrier for liquid chromatography

A carrier for liquid chromatography having main units ##STR1## WHEREIN N=0 OR AN INTEGER OF 1 TO 3; M=0 OR 1; Q= AN INTEGER OF 1 TO 3; P=0 OR 1; W=90 TO 16; X=57 TO 2; Y=0 TO 30; Z=5 TO 30; B represents adenine, guanine, thymine, uracil or cytosine; X' represents OH Cl, Br or I; and CM represents styrene, a substituted styrene, acrylonitrile, a substituted acrylonitril, acrylic acid or a substituted acrylic acid and CCM represents crosslinking agent having two or more unsaturated group such as ethylene glycol diacrylate, divinylbenzene etc.

A chromatography solid support is prepared by reacting a nucleic acid base, a related compound thereof or a mixture thereof with an epoxy group-containing porous gel in a solvent in the presence of a carbonate.

Process for preparation of chromatography solid supports comprising a

A chromatography solid support which is prepared by immersing a microporous inorganic substrate in a radiation-polymerizable monomer and subjecting said monomer to high energy radiation to produce a radiation-induced polymerization of the polymerizable monomer is disclosed.

Growing community of inventors

Shinnanyo, Japan

Tsutomu Hashimoto