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公开(公告)号：GB2360779A
公开(公告)日：2001-10-03
申请号：GB0007928
申请日：2000-03-31
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TAGUCHI YOICHI , OISHI AKIHIRO , IKEDA YOSHIKAZU , FUJITA KEN-ICHI , MASUDA TAKASHI
Abstract: An aliphatic copolyester having a plurality of first ester units of the formula : - CO - [R 1 ] t - CO - O - R 2 - O - wherein R 1 represents a divalent aliphatic group, R 2 represents a divalent aliphatic and t is an integer of 0 or 1, and a plurality of second ester units of the formula: wherein R 1 and t are as defined above and R 3 represents an aliphatic group. The molar ratio of the first ester unit to the second ester unit is 90:10 to 99.9:0.1. The copolyester is produced by reacting an aliphatic diester e.g. dimethyl succinate with an aliphatic glycol e.g. 1,4 butanediol and with a monoacylated glycerin and with a monoacylated glycerin e.g. glyceryl a -monolaurate under ester exchanging conditions.
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公开(公告)号：DE10009769A1
公开(公告)日：2000-09-28
申请号：DE10009769
申请日：2000-03-01
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TAGUCHI YOICHI , OISHI AKIHIRO , IKEDA YOSHIKAZU , FUJITA KEN-ICHI , MASUDA TAKASHI
Abstract: The aliphatic polyester expressed by a general formula (I), is new. - The aliphatic polyester is expressed by a general formula (I): (-CO-[R1]t-CO-O-R2-O-)p (I) t = molar fraction of ester portion within range of 0 or 1; r is molar fraction of ester portion which is in the range of 0.001-0.10; The R1 =(CH2)2; and R2 = (CH2)4. An independent claim is also included for aliphatic polyester manufacturing method.
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公开(公告)号：DE69032951T2
公开(公告)日：1999-07-01
申请号：DE69032951
申请日：1990-08-23
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MURATA KAZUHISA , MATSUDA AKIO , MASUDA TAKASHI
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公开(公告)号：DE69200950T2
公开(公告)日：1995-05-04
申请号：DE69200950
申请日：1992-03-02
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MURATA KAZUHISA , MATSUDA AKIO , MASUDA TAKASHI
IPC: H01F1/10 , C07C211/14 , G03G9/083 , H01F1/00 , H01F1/42
Abstract: An organic ferromagnetic substance including an amorphous carbonaceous substance in mid course of graphitization prepared from an organic compound having a hydrogen/carbon ratio of 1.7 or more and a process for producing same are disclosed. This organic ferromagnetic substance is stable and easy to produce, and has a high saturation magnetization and is advantageous as an industrial product such as a toner for copiers utilizing its light weight and high saturation magnetization.
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公开(公告)号：GB2360779B
公开(公告)日：2004-03-24
申请号：GB0007928
申请日：2000-03-31
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TAGUCHI YOICHI , OISHI AKIHIRO , IKEDA YOSHIKAZU , FUJITA KEN-ICHI , MASUDA TAKASHI
Abstract: The aliphatic polyester expressed by a general formula (I), is new. - The aliphatic polyester is expressed by a general formula (I): (-CO-[R1]t-CO-O-R2-O-)p (I) t = molar fraction of ester portion within range of 0 or 1; r is molar fraction of ester portion which is in the range of 0.001-0.10; The R1 =(CH2)2; and R2 = (CH2)4. An independent claim is also included for aliphatic polyester manufacturing method.
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Patent Agency Ranking
公开(公告)号：FR2790761B1
公开(公告)日：2003-03-28
申请号：FR0002450
申请日：2000-02-28
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TAGUCHI YOICHI , OISHI AKIHIRO , IKEDA YOSHIKAZU , FUJITA KEN ICHI , MASUDA TAKASHI
Abstract: The aliphatic polyester expressed by a general formula (I), is new. - The aliphatic polyester is expressed by a general formula (I): (-CO-[R1]t-CO-O-R2-O-)p (I) t = molar fraction of ester portion within range of 0 or 1; r is molar fraction of ester portion which is in the range of 0.001-0.10; The R1 =(CH2)2; and R2 = (CH2)4. An independent claim is also included for aliphatic polyester manufacturing method.
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公开(公告)号：FR2790761A1
公开(公告)日：2000-09-15
申请号：FR0002450
申请日：2000-02-28
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TAGUCHI YOICHI , OISHI AKIHIRO , IKEDA YOSHIKAZU , FUJITA KEN ICHI , MASUDA TAKASHI
Abstract: The aliphatic polyester expressed by a general formula (I), is new. The aliphatic polyester is expressed by a general formula (I): (-CO- R t-CO-O-R -O-)p (I) t = molar fraction of ester portion within range of 0 or 1; r is molar fraction of ester portion which is in the range of 0.001-0.10; The R =(CH2)2; and R = (CH2)4. An Independent claim is also included for aliphatic polyester manufacturing method.
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公开(公告)号：DE69119966T2
公开(公告)日：1996-10-24
申请号：DE69119966
申请日：1991-03-14
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MASUDA TAKASHI , MURATA KAZUHISA , MATSUDA AKIO , YAMAZAKI SHINSUKE
IPC: C08L67/04 , C08L101/00
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公开(公告)号：DE69032951D1
公开(公告)日：1999-03-25
申请号：DE69032951
申请日：1990-08-23
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MURATA KAZUHISA , MATSUDA AKIO , MASUDA TAKASHI
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公开(公告)号：AU779638B2
公开(公告)日：2005-02-03
申请号：AU2522100
申请日：2000-03-31
Applicant: AGENCY IND SCIENCE TECHN
Inventor： OISHI AKIHIRO , TAGUCHI YOICHI , FUJITA KENICHI , IKEDA YOSHIKAZU , MASUDA TAKASHI , ISHIGAMI YUTAKA , NAKAYAMA KAZUO , KINUGASA SHINICHI , NAKAHARA HISAE
IPC: C08G63/08 , C08G63/78 , C08G63/82 , C08L101/16
Abstract: A process of producing a polyester or copolyester, wherein at least one cyclic lactone of the following formula (I): wherein n is an integer of 1-4 provided that n is not 2 when only one cyclic lactone is used, is polymerized under a pressure of at least 200 MPa in the absence of any catalyst or in the presence of a metal-free polyesterification catalyst.
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