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RU

(11)

2 270 842

(13)

C1

(51)

IPC

C08G77/455(2006-01-01)

C08G77/10(2006-01-01)

(21) (22)

Application

2005102496/04, 2005-02-02

(24)

Start date

2005-02-02

(22)

Actual filing date

2005-02-02

(45)

Published

2006-02-27

(72)

Inventor

Vygodskij Jakov SemenovichPototskaja Inna VladimirovnaSaid-Galiev Ehrnest EfimovichOvchinnikov Anton Sergeevich

(73)

Holder

Institut Ehlementoorganicheskikh Soedinenij Im. A.N. Nesmejanova Ran Ran)Obshchestvo S Ogranichennoj Otvetstvennost'Ju

METHOD OF PRODUCING SILOXANE-CONTAINING POLYIMIDES Russian patent published in 2006 - IPC C08G77/455 C08G77/10 

Abstract RU 2270842 C1

FIELD: polymer production.

SUBSTANCE: siloxane-containing polyamides with molecular weight 58200-460000 are quantitatively obtained by single-step polycondensation of aromatic tetracarboxylic acid anhydrides with siloxane-containing diamines in supercritical carbon dioxide medium at 130-180°C and pressure 32.5 MPa.

EFFECT: enabled process accomplished in a neutral nontoxic medium and simplified process flowsheet.

8 ex

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RU 2 270 842 C1

Authors

Vygodskij Jakov Semenovich

Pototskaja Inna Vladimirovna

Said-Galiev Ehrnest Efimovich

Ovchinnikov Anton Sergeevich

Dates

2006-02-27—Published

2005-02-02—Filed

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