公开(公告)号：JPH05198421A

公开(公告)日：1993-08-06

申请号：JP2891592

申请日：1992-01-20

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MURATA KAZUHISA ,  USHIJIMA YOJI ,  MATSUDA AKIO ,  MASUDA TAKASHI

IPC: C07G99/00 ,  G03G9/083 ,  H01F1/10 ,  H01F1/34 ,  H01F1/42

Abstract: PURPOSE:To obtain a stable organic magnetic material having high saturation magnetization by a method wherein the hydrogen-containing carbide of organic monomer compound is subjected to a plasma treatment. CONSTITUTION:Organic compound is heated in an inert gas atmosphere or in a vacuum to obtain amorphous carbide containing 1-50 hydrogen atoms for 100 carbon atoms. Then the amorphous carbide is subjected to a plasma treatment. Aliphatic hydrogen carbide or alicyclic hydrogen carbide expressed by a formula I or a formula II can be used as the organic compound. The examples of the compounds expressed by the formula I are pentane, octane, dodecane, dodecanol, etc., and the examples of the compounds expressed by the formula II are cyclohexane, methyl cyclohexane, cyclohexanol, chlorocyclohexane, etc. With this constitution, a stable organic magnetic material having high saturation magnetization can be easily manufactured.

公开(公告)号：JPH03241704A

公开(公告)日：1991-10-28

申请号：JP22215890

申请日：1990-08-23

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MURATA KAZUHISA ,  MATSUDA AKIO ,  MASUDA TAKASHI

IPC: G11B5/706 ,  C08G8/00 ,  C08G8/04 ,  C08G8/10 ,  C08G8/20 ,  C08G10/02 ,  C08G61/12 ,  C09D5/23 ,  C09D7/12 ,  H01F1/00 ,  H01F1/42

Abstract: PURPOSE:To provide an organic ferromagnetic substance easy to manufacture and excellent in safety by utilizing the fact that a hydrogen containing carbide of a specific polymer exhibits ferromagnetism. CONSTITUTION:A title organic ferromagnetic substance comprises a carbide of at least one kind polymer in graphitization selected among an aromatic polymer having a structure where aromatic compounds are coupled with each other through alkylene chains each of which may be substituted by an alkyl group, an aryl group, or an alkyl group, an aryl group, or an alalkyl group, further comprising triaryl methane copolymer, acetyllene compound copolymer, and alpha,beta-unsaturated compound. Said carbide involves 1-10 hydrogen atoms per 100 carbon atoms. Hereby, an organic ferromagnetic substance is yielded which is easy to manufacture, high in the yield of production, and excellent in safety.

公开(公告)号：JPS63218252A

公开(公告)日：1988-09-12

申请号：JP4890787

申请日：1987-03-05

Applicant: AGENCY IND SCIENCE TECHN ,  LION CORP

Inventor： MATSUDA AKIO ,  MASUDA TAKASHI ,  MURATA KAZUHISA ,  NAKAYAMA JUNICHI

IPC: B01J31/06 ,  B01J31/22 ,  C07C45/00 ,  C07C45/50 ,  C07C47/02 ,  C07C67/00

Abstract: PURPOSE:To produce aldehyde with good selectivity under mild conditions and also to facilitate both separation and recovery of a catalyst after reaction and circulating usage, by using the catalyst for oxo reaction consisting of Rh and chitin. CONSTITUTION:A catalyst for oxo reaction is constituted of Rh and chitin. In the case of performing oxo reaction by using this catalyst, aldehyde is produced with good selectivity under the mild conditions and also separation and recovery of the catalyst after reaction and circulating usage are facilitated. Further since chitin is produced as biomass at mass production and is an inexpensive raw material, the above-mentioned catalyst is preferable as the catalyst used for industrial oxo reaction.

公开(公告)号：JPS61167646A

公开(公告)日：1986-07-29

申请号：JP868385

申请日：1985-01-21

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MURATA KAZUHISA ,  MATSUDA AKIO ,  MASUDA TAKASHI

IPC: C07B61/00 ,  B01J31/00 ,  B01J31/20 ,  B01J31/24 ,  C07C67/36 ,  C07C69/708

Abstract: PURPOSE:To obtain the titled compound useful as a synthetic raw material for ethylene glycol, in high yield, by reacting carbon monoxide with formaldehyde dialkyl acetal in the presence of a cobalt catalyst and a base. CONSTITUTION:The objective alkoxyacetic acid ester can be produced by reacting carbon monoxide with formaldehyde dialkyl acetal in the presence of a cobalt catalyst and a base. The cobalt catalyst is e.g. a cobalt compound used conventional in oxo reaction, etc. (e.g. dicobalt octacarbonyl) and a cobalt compound capable of forming cobalt carbonyl under the reaction condition (e.g. cobalt acetate). A trivalent phosphorus compound (e.g. tri-n-butylphosphine) may be combined with the cobalt catalyst and the base. The amount of the catalyst used is 0.2-0.002mol (in terms of Co atom) based on the formaldehyde dialkyl acetal.

公开(公告)号：JP2002105184A

公开(公告)日：2002-04-10

申请号：JP2000304240

申请日：2000-10-03

Applicant: AGENCY IND SCIENCE TECHN ,  DAICEL CHEM

Inventor： MASUDA TAKASHI ,  SO AMIN ,  NAKAYAMA KAZUO ,  YOSHIDA SHIGEYUKI ,  KATAYAMA HIROSHI

IPC: C08G63/78

Abstract: PROBLEM TO BE SOLVED: To efficiently obtain a high-molecular weight polybutylene succinate from 1,4-butanediol and succinic acid or its derivative. SOLUTION: A prepolymer formed by a prepolymerization process is further subjected to polycondensation by using a horizontal polymerizer which has a horizontally arranged cylindrical reactor, two rotary trunnions installed side by side at both ends of the reactor in the longer direction and lattice type mixing blades connected to plural rodlike rectangular frames each laid between the rotary trunnions at both ends of the reactor. The horizontal polymerizer is equipped with a rotation mechanism for holding and rotating the two rotary trunnions in such a way that the tip of the rodlike rectangular frame of one mixing blade is passed in close vicinity to the center of the rotation of the other mixing blade.

公开(公告)号：JP2001098061A

公开(公告)日：2001-04-10

申请号：JP2000266700

申请日：2000-09-04

Applicant: AGENCY IND SCIENCE TECHN ,  MASUDA TAKASHI ,  MATSUDA AKIO ,  SAKAGUCHI HIROSHI ,  HAMAYA TAKEO

Inventor： MASUDA TAKASHI ,  MATSUDA AKIO ,  SAKAGUCHI HIROSHI ,  HAMAYA TAKEO

IPC: C08G63/60 ,  C08G63/78 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To provide a novel biodegradable polyester which can be prepared by reusing waste PET bottles. SOLUTION: This biodegradable polyester comprises terephthalic acid, succinic acid, 6-hexanolactone and 1,4-butanediol. The content of terephthalic acid is 5-40 mol% of the total of the contents of terephthalic acid, succinic acid and 6-hexanolactone.

公开(公告)号：JP2001064370A

公开(公告)日：2001-03-13

申请号：JP24159199

申请日：1999-08-27

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TAGUCHI YOICHI ,  OISHI AKIHIRO ,  IKEDA YOSHIKAZU ,  FUJITA KENICHI ,  MASUDA TAKASHI

IPC: C08G63/12 ,  C08G63/16 ,  C08G63/672 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To produce an aliphatic polyester excellent in mechanical strengths and processibility by incorporating ester structures derived from a 3-alkoxy-1,2- propanediol in a specified content into the same. SOLUTION: This polyester comprises an ester moiety (A) of formula I and an ester moiety (B) of formula II and the molar fraction (r) of moiety B is 0.01-0.10. In the formulas, R1 is a 1-2C divalent aliphatic group; R2 is a 2-12C divalent aliphatic group; (p) is the molar fraction of moiety A contained in the polyester; and R3 is a 1-18C aliphatic group. Preferably, R1 is (CH2)2 and R2 is (CH2)4. This polyester is produced by subjecting an aliphatic dicarboxylic diester of formula III, an aliphatic diol of the formula: HO-R2=OH, and a 3-alkoxy-1,2-propanediol of formula IV to condensation reaction in an amount of the 3-alkoxy-1,2-propanediol used of 0.001-0.10 mol per mol of the aliphatic dicarboxylic diester. In formula III, R4 and R5 are each a 1-4C alkyl.

公开(公告)号：JP2001064369A

公开(公告)日：2001-03-13

申请号：JP24158599

申请日：1999-08-27

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OISHI AKIHIRO ,  TAGUCHI YOICHI ,  FUJITA KENICHI ,  IKEDA YOSHIKAZU ,  MASUDA TAKASHI

IPC: C08G63/08 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To industrially advantageously produce a polyester copolymer the composition of which is almost equal to the ratio of raw materials charged and which has a high number average mol.wt. by subjecting a γ-lactone and a β-lactone to ring-opening copolymerization in the presence of a Lewis acid under a specified pressure and at a specified temperature so that the resultant copolymer has a specified number average mol.wt. SOLUTION: A γ-lactone of formula I and a β-lactone of formula II are subjected to ring-opening copolymerization in the presence of a Lewis acid under an ultrahigh pressure of 200 atm or higher and under heating at 30-130 deg.C to produce an aliphatic polyester copolymer having a number average mol.wt. of 5,000 or higher and a ratio of wt. average mol.wt. to number average mol.wt. of 1.1-1.3. Preferably, the copolymer contains 60-95% γ-lactone-derived ester units. It is preferable that the γ-lactone is γ-butryrolactone and that the β-lacone is β-butyrolactone. Examples of the Lewis acid are a boron halide, a metal halide, and a metal alkoxide.

公开(公告)号：JP2000281767A

公开(公告)日：2000-10-10

申请号：JP9268599

申请日：1999-03-31

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OISHI AKIHIRO ,  TAGUCHI YOICHI ,  FUJITA KENICHI ,  IKEDA YOSHIKAZU ,  MASUDA TAKASHI

IPC: C08G63/08 ,  C08G63/78 ,  C08G63/82

Abstract: PROBLEM TO BE SOLVED: To obtain a polyp-γ-butyrolactone having a higher molecular weight from industrially mass-produced cheap γ-butyrolactone by polymerizing γ- butyrolactone through ring opening by heating to a specified temperature under an ultrahigh atmosphere in the presence of a Lewis acid. SOLUTION: γ-Butyrolactone is polymerized through ring opening by heating to 40-160 deg.C. The Lewis acid used is exemplified by a boron halide, a metal halide, or a metal alkoxide and may be used in the form of a mixture with an organic acid. The amount of the Lewis acid used is usually 0.01-5 mol% based on the amount of the γ-butyrolactone used. The ultrahigh pressure ranges from at least 10,000 atm, desirably, at least 12,000 atm to at most about 20,000 atom. The reaction time is usually 10-70 hr. The molecular weight of the obtained poly-γ-butyrolactone ranges from at least 10,000 to at most, usually, about 50,000.

公开(公告)号：JP2000204143A

公开(公告)日：2000-07-25

申请号：JP13064799

申请日：1999-05-11

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MASUDA TAKASHI ,  ISHIGAMI YUTAKA ,  SAKAGUCHI HIROSHI ,  NAKAYAMA KAZUO

IPC: C08G63/64 ,  C08G63/66 ,  C08G63/692 ,  C08G63/82 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To obtain an aliphatic polyester-based polymer excellent in the color, having a melting temperature(Tm) sufficient to a practically applicable level, excellent in mechanical strength and processability, and having a new structure. SOLUTION: This aliphatic polyester-based polymer comprises a dicarboxylate part represented by the formula (-CO-(R1)t-CO-O-R2-O-) (R1 is a 1-12C bivalent aliphatic group; R2 is a 2-12C bivalent aliphatic group; t is a number of 0 or 1), and at least one king of an ester part selected from a group of (i) an oxycarbonate part represented by the formula (-CO-R3-O-) (R3 is a 1-12C bivalent aliphatic group), (ii) a carbonate part represented by the formula (-OCOO-), and (iii) an ether group-containing aliphatic ester part represented by the formula (-CO-(R1)t-CO-O-[C3H5(OR4)O]n-) (R1 is a 1-12C bivalent aliphatic group; R4 is hydrogen or an acyl group) in the molecular chain, and further contains a phosphorus-containing connecting group derived from an acidic phosphorus compound in the polymer.