AMINO ACID ACRYLOYL MONOMER AND MANUFACTURE THEREOF

    公开(公告)号:JP2000281726A

    公开(公告)日:2000-10-10

    申请号:JP25089199

    申请日:1999-09-03

    Abstract: PROBLEM TO BE SOLVED: To provide a synthetic method of an amino acid acryloyl monomer or amino acid methacryloyl monomer and its telomer or polymer wherein an optically active site which sufficiently expresses property of an amino acid is protected by formation of a copper complex, acryloylation or methacryloylation can be also performed inexpensively and safely in water, and they can be resinified by a radical polymerization method similarly to a synthetic method of polyvinyl chloride or polystyrene. SOLUTION: After forming a copper complex at room temperature by adding a copper ion to an amino acid, an amino acid acryloyl-copper complex or methacryloyl-copper complex is produced by a substituting reaction of acid chloride in aqueous mixed solvents, and the copper is extracted from the organic layer with a chelating agent at room temperature and at a neutral region to be removed. Further, the telomer or polymer is synthesized by radically polymerizing the obtained amino acid acryloyl monomer or amino acid methacryloyl monomer.

    METHOD FOR RECOVERING AND REUSING FIBER FROM FIBER-REINFORCED PLASTIC

    公开(公告)号:JPH1087872A

    公开(公告)日:1998-04-07

    申请号:JP26124096

    申请日:1996-09-09

    Abstract: PROBLEM TO BE SOLVED: To enable reinforcing fibers to be separated, recovered, and reused efficiently without damaging the fibers by bringing a fiber-reinforced plastic into contact and reaction with (sub)supercritical water. SOLUTION: After a fiber-reinforced plastic is charged into a reactor 1 and water supplied from a water cylinder 2 to a water tank 3 is charged into the reator 1 through a high-pressure pump 4 so that water occupies 1-50vol.% of the reactor 1, valves 5, 6 are closed and the reactor 1 is hermetically sealed. Then, a heat exchanger 8 and the reactor 1 are heated to 320-500 deg.C with a constant temp. bath 7 to bring water in the reactor 1 into a (sub)supercritical state. The reinforced plastic is brought into contact with the water in a (sub) supercritical state and thus is reacted. The reactor 1 is then returned to normal temp. and the valve 6 is opened to separate and recover a gaseous part contg. hydrocarbons, carbon dioxide, nitrogen, etc., through a trap 9.

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