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    Biodegradable aliphatic copolyester
    4.
    发明专利
    Biodegradable aliphatic copolyester 未知

    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

    IPC: C08G63/16 ,  C08G63/20 ,  C08L67/02

    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.

    7.
    发明专利
    未知

    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

    IPC: C08G63/16 ,  C08G63/20 ,  C08G63/00

    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.

    BATA-KETOTHIOAMIDE DERIVATIVE AND ITS PRODUCTION
    9.
    发明专利
    BATA-KETOTHIOAMIDE DERIVATIVE AND ITS PRODUCTION 失效

    公开(公告)号：JPH0892203A

    公开(公告)日：1996-04-09

    申请号：JP23284694

    申请日：1994-09-28

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： TSUCHIYA TORU ,  SHIBUYA ISAO ,  TAGUCHI YOICHI ,  OISHI AKIHIRO ,  HONDA KAZUMASA

    IPC: C07D223/08 ,  C07C327/42 ,  C07C327/44 ,  C07D223/02 ,  C07D223/06 ,  C07D225/02

    Abstract: PURPOSE: To provide a new β-ketothioamide derivative useful as a chelating reagent or an intermediate for organic synthesis and easily producible by a new reaction of an N,N-disubstituted amide with a bis(trialkylsilyl)thioketene. CONSTITUTION: This β-ketothioamide derivative is expressed by formula I (R and R are each a hydrocarbon group; R is H or a hydrocarbon group; R may be bonded with R or R to form a ring structure), e.g. N,N-dimethyl-3- oxothiobutyramide of formula II. The compound of formula I can be produced by reacting an N,N-disubstituted amide of formula III with a bis(trialkylsilyl) thioketene and treating the reaction product with an alcohol. The β- ketothioamide derivative can be produced by this production process with a simple procedure under mild reaction condition in high yield using an inexpensive raw material.

    PRODUCTION OF ISOCYANURIC ACID DERIVATIVE
    10.
    发明专利
    PRODUCTION OF ISOCYANURIC ACID DERIVATIVE 失效

    公开(公告)号：JPH03109382A

    公开(公告)日：1991-05-09

    申请号：JP24860289

    申请日：1989-09-25

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： TAGUCHI YOICHI ,  SHIBUYA ISAO

    IPC: C07D251/34

    Abstract: PURPOSE:To efficiently obtain the title compound useful as an improver for resins in high yield by reacting an isocyanic ester in the presence of a base under high pressure. CONSTITUTION:An isocyanic ester (e.g. phenyl isocyanate) shown by the formula NCO (R is alkyl or aryl) is reacted in the presence of a base (e.g. triethylamine) under high pressure (preferably 500-4,000kg/cm ) preferably at room temperature to 10 deg.C for 5-50 hours to give the objective compound shown by the formula.

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