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2 225 871

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IPC

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Application

2001121070/04, 2001-07-27

(24)

Start date

2001-07-27

(22)

Actual filing date

2001-07-27

(45)

Published

2004-03-20

(72)

Inventor

Arzhakov M.S.Arzhakov S.A.D'Jachkov A.I.Skorobogatova A.E.Stojachenko I.L.Chernavin V.A.D'Jachkov I.A.

(73)

Holder

Arzhakov Sergej Alekseevich

METHOD FOR PROCESSING METHYLMETHACRYLATE PREPOLYMER AND REMOVING FREE MONOMER FROM ITS Russian patent published in 2004 - IPC

Abstract RU 2225871 C2

FIELD: polymers, chemical technology. SUBSTANCE: invention relates to method for processing methylmethacrylate prepolymer and removing free monomer from its content by its conversion to polymer that involves heating prepolymer. Method involves using prepolymer with conversion 50-85% as a prepolymer. Heating is carried out to above of the polymer virtification point and depolymerization to monomer-free polymethylmethacrylate. The conversion of monomer to polymer is carried out in extrusion of perpolymer. EFFECT: improved processing method. 5 cl, 4 ex

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RU 2 225 871 C2

Authors

Arzhakov M.S.

Arzhakov S.A.

D'Jachkov A.I.

Skorobogatova A.E.

Stojachenko I.L.

Chernavin V.A.

D'Jachkov I.A.

Dates

2004-03-20—Published

2001-07-27—Filed

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