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2 494 118

(13)

(51)

IPC

C08G65/40(2006-01-01)

C08G65/42(2006-01-01)

C08G65/00(2006-01-01)

C07C43/275(2006-01-01)

(21) (22)

Application

2012110570/04, 2012-03-20

(24)

Start date

2012-03-20

(22)

Actual filing date

2012-03-20

(45)

Published

2013-09-27

(72)

Inventor

Kharaev Arsen MukhamedovichBazheva Rima ChamalovnaKhochuev Idris JusupovichBeslaneeva Zera LionovnaLukozhev Ruben Vladimirovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Kabardino-Balkarskij Gosudarstvennyj Universitet Im. Kh.M. Berbekova

METHOD OF PRODUCING POLYESTER KETONES Russian patent published in 2013 - IPC C08G65/40 C08G65/42 C08G65/00 C07C43/275

Abstract RU 2494118 C1

FIELD: chemistry.

SUBSTANCE: present invention relates to methods of producing polyester ketones by high-temperature polycondensation. The method includes a first step of reacting a dioxy compound and 4,4'-dichlorobenzophenol in the presence of potassium carbonate in N,N-dimethylacetamide in a current of nitrogen for 3 hours at temperature of 165°C and a second step of reacting the formed oligomers with terminal phenoxide groups with 4,4'-difluorobenzophenol for 4 hours in the same conditions.

EFFECT: optimising the synthesis process, obtaining high-molecular weight polyester ketones, low cost of the product and avoiding the gel-formation process.

2 ex

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RU 2 494 118 C1

Authors

Kharaev Arsen Mukhamedovich

Bazheva Rima Chamalovna

Khochuev Idris Jusupovich

Beslaneeva Zera Lionovna

Lukozhev Ruben Vladimirovich

Dates

2013-09-27—Published

2012-03-20—Filed