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2 680 524

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IPC

C08G65/40(2006-01-01)

C08G65/42(2006-01-01)

C08G64/04(2006-01-01)

C08G64/30(2006-01-01)

(21) (22)

Application

2018133120, 2018-09-18

(24)

Start date

2018-09-18

(22)

Actual filing date

2018-09-18

(45)

Published

2019-02-22

(72)

Inventor

Khashirova Svetlana YurevnaZhansitov Azamat AslanovichShakhmurzova Kamila TimurovnaKurdanova Zhanna InalovnaMusov Ismel VyacheslavovichBajkaziev Artur Eldarovich

(73)

Holder

Rossijskaya Federatsiya, Ot Imeni Kotoroj Vystupaet Fond Perspektivnykh Issledovanij

METHOD FOR PRODUCING HEAT-RESISTANT COPOLYETHER KETONES WITH ENHANCED PHYSICAL AND MECHANICAL PROPERTIES Russian patent published in 2019 - IPC C08G65/40 C08G65/42 C08G64/04 C08G64/30

Abstract RU 2680524 C1

FIELD: technological processes.

SUBSTANCE: present invention relates to a method for producing copolyether ketones with high heat resistance and enhanced physical and mechanical properties based on 4,4'-dihydroxybenzophenone, 4,4'-difluorobenzophenone, potassium carbonate as an alkaline agent, characterized by using 4,4'-dihydroxydiphenylpropane as the third monomer, and dimethylacetamide as a solvent, in the polycondensation process of synthesis.

EFFECT: producing a copolymer based on 4,4'-dihydroxybenzophenone, 4,4'-difluorobenzophenone and 4,4'-dihydroxydiphenylpropane, simplified and optimized process.

1 cl, 2 tbl, 3 ex

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RU 2 680 524 C1

Authors

Khashirova Svetlana Yurevna

Zhansitov Azamat Aslanovich

Shakhmurzova Kamila Timurovna

Kurdanova Zhanna Inalovna

Musov Ismel Vyacheslavovich

Bajkaziev Artur Eldarovich

Dates

2019-02-22—Published

2018-09-18—Filed