公开(公告)号：JPS63216845A

公开(公告)日：1988-09-09

申请号：JP5098487

申请日：1987-03-05

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SAKAKI KEIJI ,  SAKO TAKESHI ,  SATO SHINJI ,  SUGATA TAKESHI ,  SUZUKI OSAMU ,  NAKAZAWA NOBUAKI ,  SHIRATA TOSHIKATSU ,  YOKOCHI TOSHIHIRO

IPC: C07C67/56 ,  C07C69/58 ,  C11B3/10 ,  C11B7/00

Abstract: PURPOSE:To obtain the titled compound inexpensively, in high yield and harmlessly to human body without requiring removal of organic solvent by vacuum distillation, by fractionating gamma-linolenic acid containing natural fats and oils by chromatography using a supercritical fluid as a mobile phase. CONSTITUTION:gamma-Linolenic acid-containing natural fats and oils are fractionated by chromatography using a supercritical fluid as a mobile phase and a gamma- linolenic acid-containing glyceride fraction is collected to give the aimed com pound. A hydrocarbon such as methane or ethane besides carbon dioxide and freon is used as the supercritical fluid. The supercritical condition is >=72.4kg/cm pressure and >=31.0 deg.C temperature in the case of carbon dioxide. A small amount of ethanol, butane, etc., having 40-120 deg.C boiling point is added to the supercritical fluid so that separating performance is improved. The partial collection condition by the supercritical chromatography is preferably 35-60 deg.C temperature and 90-250kg/cm pressure.

公开(公告)号：JPS63196564A

公开(公告)日：1988-08-15

申请号：JP2721987

申请日：1987-02-10

Applicant: AGENCY IND SCIENCE TECHN

Inventor： HINO SEIICHI ,  SATO SHOICHI ,  KOURA KOJI ,  SUZUKI OSAMU

IPC: C07D209/48 ,  C07D487/04 ,  C08G73/10

Abstract: PURPOSE:To obtain the titled compound having excellent storage stability and moldability from aromatic tetracarboxylic acids, by using a condensation product of o-ethylaniline and formaldehyde as an aromatic diamine and using ethynylphthalic acids as an agent for converting a terminal to a functional group. CONSTITUTION:An imide oligomer is produced from 3 components comprising an aromatic tetracarboxylic acid or its derivative, an aromatic diamine and an agent for converting a terminal to a functional group. In the above process, an imide oligomer soluble in an organic solvent can be produced by using a condensation product of o-ethylaniline and formaldehyde (e.g. 3,3'-diethyl-4,4'- diaminodiphenylmethane) as the aromatic diamine and an ethynylphthalic acid of formula (R is H, aliphatic group, cycloaliphatic group or aromatic group) or its derivative as the converting agent. The oligomer is self-curable with heat without generating a volatile compound such as water, alcohol, etc., and is useful as a raw material for a polyimide resin having high heat-resistance.

公开(公告)号：JPS61216658A

公开(公告)日：1986-09-26

申请号：JP5429885

申请日：1985-03-20

Applicant: AGENCY IND SCIENCE TECHN ,  NIHON NOSAN KOGYO ,  KANEGAFUCHI CHEMICAL IND

Inventor： SUZUKI OSAMU ,  YOKOCHI TOSHIHIRO ,  SEKIMOTO KUNITOSHI ,  SEKI TAKEHIRO ,  KAWACHI YOSHIHIRO ,  KATO NAOSUKE

IPC: A23C9/158 ,  A23L1/30 ,  A23L15/00 ,  A23L17/00

Abstract: PURPOSE:To obtain egg, meat, and milk containing gammalinolenic acid having physiologically active effects such as reduction in cholesterol in blood, normalization of blood pressure, etc., by feeding a ration containing gammalinolenic acid to domestic animals, domestic fowls, etc. CONSTITUTION:A ration for domestic animals or domestic fowls is blended with about 0.1-3.0wt% calculated as gammalinolenic acid of gammalinolenic acid, seed or mold containing gammalinolenic acid, or fats and oils extracted from them and the ration is fed to domestic animals or domestic fowls.