公开(公告)号：JP2001026612A

公开(公告)日：2001-01-30

申请号：JP26195299

申请日：1999-09-16

Applicant: AGENCY IND SCIENCE TECHN ,  JAPAN CHEMICAL INNOVATION INST

Inventor： SOGA KAZUO ,  ASAI MICHIHIKO ,  SUZUKI YASUZO ,  MIYAZAWA SATORU ,  TSUCHIHARA KENJI ,  MURATA MASAHIDE ,  OZAKI HIROYUKI ,  KAWABE MASANAO ,  KASE TOSHIO ,  JIN JIJU ,  HAGIWARA HIDEAKI ,  FUKUI YOSHIFUMI

IPC: C08F10/00 ,  C08F4/64 ,  C08F4/643 ,  C08F4/6592

Abstract: PROBLEM TO BE SOLVED: To produce a living polymer that has a narrow molecular weight distribution and that can be converted to a terminally functionalized polymer or block copolymer by polymerizing an olefin at a specified temperature using a catalyst which comprises a Hf- or Zr-containing compound and a phenyl group-containing borane compound or borate compound. SOLUTION: A 2-20C olefinic monomer is polymerized with the use of a catalyst which comprises a Hf- or Zr-containing compound having one or two cyclopentadienyl skeletons and a borane compound represented by B(Ph)3 (wherein Ph is phenyl which may be substituted) or a borate compound represented by B-(Ph)4X+ (wherein X+ is a cationic group) and in some cases, further comprises an aluminum compound at -20 to -100 deg.C in the case of the use of a Hf-containing compound or at -60 to -100 deg.C in the case of the use of a Zr-containing compound to thereby produce a living polymer having a Mw/Mn of 1-1.3.

公开(公告)号：JP2000239311A

公开(公告)日：2000-09-05

申请号：JP4222799

申请日：1999-02-19

Applicant: AGENCY IND SCIENCE TECHN ,  JAPAN CHEMICAL INNOVATION INST

Inventor： MURATA MASAHIDE ,  OZAKI HIROYUKI ,  HAGIWARA HIDEAKI ,  ASAI MICHIHIKO ,  SUZUKI YASUZO ,  MIYAZAWA SATORU ,  TSUCHIHARA KENJI ,  FUKUI YOSHIFUMI ,  KAWABE MASANAO ,  KASE TOSHIO ,  SOGA KAZUO ,  JIN JIJU

IPC: C08F4/64 ,  C08F4/6592 ,  C08F10/00

Abstract: PROBLEM TO BE SOLVED: To simply and easily prepare an inexpensive catalyst for polymerizing an olefin, easily to be handled and useful for polymerizing ethylene or the like by including a bis(cyclopentadienyl)titanium halide, a dialkylaluminum halide or the like. SOLUTION: This catalyst is prepared by including (A) a bis(cyclopentadienyl) titanium halide [preferably bis(cyclopentadienyl)titanium chloride], (B) a reaction product of a compound [preferably bis(cyclopentadienyl)zirconium dichloride] of the formula: Cp2Zr(X) (Y) (wherein, Cp is cyclopentadienyl; X and Y are each a halogen or the like) with an aluminum trichloride (preferably aluminum trichloride) and (C) a dialkylaluminum halide (preferably diethylaluminum chloride). The quantities of zirconium included in the ingredient B and the ingredient C are 0.5-1.5 g atom and 10-30 g mol respectively based on 1 g atom titanium in the ingredient A.

公开(公告)号：JP2000178226A

公开(公告)日：2000-06-27

申请号：JP35580598

申请日：1998-12-15

Applicant: JAPAN CHEMICAL INNOVATION INST ,  AGENCY IND SCIENCE TECHN

Inventor： ISHII HIROTOSHI ,  UEDA MITSURU ,  TAKEUCHI KAZUHIKO ,  ASAI MICHIHIKO

IPC: B01J31/24 ,  C07B61/00 ,  C07C68/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for efficiently producing an aliphatic carbonic ester from an aliphatic hydroxy compound at one stage in a high yield. SOLUTION: An aliphatic hydroxy compound is reacted with carbon dioxide and oxygen in the presence of a catalyst consisting of (a-1) a polynuclear metal complex compound containing at least one selected from a tin atom, a titanium atom and an iron atom and a palladium atom as a metal center, (a-2) a polynuclear metal complex compound containing plural palladium atoms as a metal center or (a-3) a palladium complex compound containing an organic compound containing two or more nitrogen atoms as a ligand and (b) a redox catalyst to produce an aliphatic carbonic ester.

公开(公告)号：JP2000063333A

公开(公告)日：2000-02-29

申请号：JP23250798

申请日：1998-08-19

Applicant: JAPAN CHEMICAL INNOVATION INST ,  AGENCY IND SCIENCE TECHN

Inventor： ISHII HIROTOSHI ,  UEDA MITSURU ,  TAKEUCHI KAZUHIKO ,  ASAI MICHIHIKO

IPC: B01J31/24 ,  C07B61/00 ,  C07C68/00 ,  C07C69/96

Abstract: PROBLEM TO BE SOLVED: To efficiently obtain an aromatic carbonate ester useful as an intermediate for synthesizing organic compounds from an aromatic hydroxy compound in one step and in a high yield by using a specific multi-nuclear metal complex compound and a redox catalyst as catalysts. SOLUTION: This method for producing an aromatic carbonate ester (for example, diphenyl carbonate) comprises reacting (A) an aromatic hydroxy compound (for example, phenol) with (B) carbon monoxide and (C) oxygen in the presence of (D) a multi-nuclear metal complex compound having plural Pd atoms as the metal center for example, dichlorobis[methylenebis(diphenylphosphine)]dipalladium] and (E) a redox catalyst [for example, Mn (2,2,6,6-tetramethyl-3,5-heptanedionate)3]. The component D is preferably used in an amount of 1×10-8 to 0. 5 mole as Pd per mole of the component A, and the component E is also preferably used in an amount of 0.1-100 moles per mole of the Pd of the component A.

公开(公告)号：JP2000016964A

公开(公告)日：2000-01-18

申请号：JP18068298

申请日：1998-06-26

Applicant: KAGAKU GIJUTSU SENRYAKU SUISHI ,  AGENCY IND SCIENCE TECHN

Inventor： ISHII HIROTOSHI ,  UEDA MITSURU ,  TAKEUCHI KAZUHIKO ,  ASAI MICHIHIKO

IPC: B01J31/22 ,  C07B61/00 ,  C07C68/00 ,  C07C69/96

Abstract: PROBLEM TO BE SOLVED: To provide a method for efficiently producing an aromatic carbonic ester from an aromatic hydroxyl compound by one stage in a high yield. SOLUTION: This method for producing an aromatic carbonic ester comprises reacting an aromatic hydroxyl compound with carbon monoxide and oxygen in the presence of (a) a palladium complex compound comprising an organic compound containing at least two or more nitrogen atoms as a ligand, preferably at least one kind of a palladium complex compound selected from a palladium complex compound containing a diimine-based compound as a ligand, a palladium complex compound containing a bipyridyl-based compound as a ligand and a palladium complex compound containing a diamine-based compound as a ligand and (b) a redox catalyst.

公开(公告)号：JPH11286509A

公开(公告)日：1999-10-19

申请号：JP28051898

申请日：1998-09-15

Applicant: AGENCY IND SCIENCE TECHN ,  KAGAKU GIJUTSU SENRYAKU SUISHI

Inventor： SOGA KAZUO ,  ASAI MICHIHIKO ,  SUZUKI YASUZO ,  MIYAZAWA SATORU ,  TSUCHIHARA KENJI ,  MURATA MASAHIDE ,  OZAKI HIROYUKI ,  KAWABE MASANAO ,  FUKUI YOSHIFUMI ,  JIN JIJU ,  HAGIWARA HIDEAKI ,  KASE TOSHIO

IPC: C08F297/06 ,  C08F4/645 ,  C08F4/659 ,  C08F4/6592 ,  C08F36/04

Abstract: PROBLEM TO BE SOLVED: To obtain a conjugated diene polymer that has high 1,4-cis content and high living chain content in high production efficiency by polymerizing a conjugated diene monomer in the presence of a specific catalyst. SOLUTION: A conjugated diene monomer or a mixture thereof with copolymerizable monomers are polymerized or co-polymerized in the presence of a catalyst that is prepared by bringing (A) an organometallic compound of a transition metal in group IV in the periodic table bearing a cyclopentadienyl skeleton into contact with (B) at least one kind of co-catalyst selected from (i) an organoaluminum oxy compound, (ii) an ionic compound that reacts with the component A to form a cationic transition metal compound, (iii) a Lewis acid compound that can react with the component A to form a cationic transition metal compound and (iv) an organometallic compound of a metal in the main groups I-III in the periodic table under the conditions satisfying the formulas I and II [(t) is a contact time (minute); T is a contact temperature ( deg.C)].

公开(公告)号：JPH11228634A

公开(公告)日：1999-08-24

申请号：JP15688798

申请日：1998-05-22

Applicant: AGENCY IND SCIENCE TECHN ,  KAGAKU GIJUTSU SENRYAKU SUISHI

Inventor： SOGA KAZUO ,  ASAI MICHIHIKO ,  SUZUKI YASUZO ,  MIYAZAWA SATORU ,  TSUCHIHARA KENJI ,  MURATA MASAHIDE ,  OZAKI HIROYUKI ,  KAWABE MASANAO ,  FUKUI YOSHIFUMI ,  KASE TOSHIO

IPC: C08F4/64 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F36/00 ,  C08F36/04 ,  C08F36/06

Abstract: PROBLEM TO BE SOLVED: To provide a butadienic polymer having many cis-bonds and a small Mw/Mn ratio, to provide a method for producing the polymer, and to provide a catalyst having a high activity, having an excellent property for controlling the stereoregularity of the polymer and useful for producing the conjugated diene polymer having a small mol.wt. distribution. SOLUTION: This butadienic polymer has cis-bonded units originated from a butadienic monomer in an amount of >=50% based on the total units, a Mw/Mn ratio of

公开(公告)号：JPH1087799A

公开(公告)日：1998-04-07

申请号：JP26937796

申请日：1996-09-19

Applicant: AGENCY IND SCIENCE TECHN ,  CHIKYU KANKYO SANGYO GIJUTSU

Inventor： KAJIKAWA YASUTERU ,  YAMAWAKI KENTARO ,  MATSUDA AKIO ,  MASUDA TAKASHI ,  ASAI MICHIHIKO

IPC: C08G63/64 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To obtain the subject polymer having a specific mol.wt. and specific bond structures in the molecule, capable of expressing excellent heat resistance, mechanical strength and processability and useful as a biodegradable plastic. SOLUTION: This aliphatic polyestercarbonate has a linear structure and a number-average mol.wt. of >=20,000, and contains bond structures of formula I [(n) is 3-12; Z is an n-valent aliphatic group] in the molecule. The polymer is obtained by polycondensing (A) a compound of formula II (R is a divalent 2-12C aliphatic group; R , R are each a 1-4C alkyl), (B) a compound of the formula: HO-R -OH (R is R ), (C) a compound of formula III (R , R are each an aliphatic group, an aromatic group), and (D) a compound of the formula: Z(OH)n in such a ratio that the component D is 0.05-10 moles per 100 moles of the total amount of the components A and C.

公开(公告)号：JPH06145646A

公开(公告)日：1994-05-27

申请号：JP32254392

申请日：1992-11-06

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ITO SHOJI ,  WATANABE YASUSHI ,  ASAI MICHIHIKO

IPC: C08F220/56 ,  C08F22/10 ,  C08F220/10 ,  C08F220/54 ,  C08F220/60 ,  C08L33/24 ,  C08L33/26 ,  C09K3/00

Abstract: PURPOSE:To obtain the subject copolymer comprising a copolymer produced from acryloylbenzhydrazide and dimethylacrylamide in a specific ratio, causing a phase transfer by a thermal irritation in water, having a chelating ability, and useful for light-screening articles, temperature sensors, etc. CONSTITUTION:The objective copolymer comprises N-acryloylbenzhydrazide-N, N-dimethylacrylamide copolymer wherein the content of the N- acryloylbenzhydrazide is 7-18mol.%. The copolymer is obtained by radically copolymerizing N-acryloylbenzhydrazide with N,N-dimethylacrylamide in the presence of a polymerization initiator such as benzoyl peroxide.

公开(公告)号：JPH04124082A

公开(公告)日：1992-04-24

申请号：JP24280790

申请日：1990-09-14

Applicant: AGENCY IND SCIENCE TECHN ,  MITSUBISHI HEAVY IND LTD

Inventor： ATAKA MITSUO ,  ASAI MICHIHIKO ,  KATO MAKI ,  KAMIMURA KAZUHIDE

IPC: B01D9/02 ,  C30B7/00 ,  C30B7/08 ,  C30B29/58

Abstract: PURPOSE:To obtain a large-sized crystal without disturbing the state of surrounding solution of the crystal by crystallizing out crystal by locally keeping a solution containing a crystalline substance at an optimum temperature. CONSTITUTION:A solution 1 containing a crystalline substance (e.g. egg white lysozyme) is charged to a tubular vessel 2 and a T-letter type tube is fitted at an end of the vessel 2, then cold water is flowed in the tube 3, thus the solution 1 is locally cooled to crystallize out a crystal in the vicinity of the tube 3 in the vessel 2.