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1 840 101

(13)

(51)

IPC

C08F214/26(2006-01-01)

C08F210/02(2006-01-01)

C08F2/44(2006-01-01)

(21) (22)

Application

2233854/04, 1978-03-02

(22)

Actual filing date

1978-03-02

(45)

Published

2006-06-27

(72)

Inventor

Panshin Jurij AleksandrovichLoginova Nina NikolaevnaBronov Mark VladimirovichPodlesskaja Nehllja KonstantinovnaKrolikova Elena NikolaevnaDmitrieva Nina SergeevnaGol'Dinov Avram LipovichIvanov Vitalij AleksandrovichMasljakov Aleksandr IvanovichUtkin Valentin Vasil'Evich

METHOD OF PRODUCING CRACKING-RESISTANT TETRAFLUOROETHYLENE/ETHYLENE COPOLYMER Russian patent published in 2006 - IPC C08F214/26 C08F210/02 C08F2/44

Abstract SU 1840101 A1

FIELD: polymer production.

SUBSTANCE: cracking-resistant tetrafluoroethylene/ethylene copolymer is obtained through copolymerization of above monomers in an aqueous medium in presence of free radical-type initiator. Reaction medium, prior to be charged with monomers, is supplemented with alkali or ammonium salts of monobasic perfluoro- or ω-monohydrogenperfluorocarboxylic acids with 7-11 carbon atoms in amount 0.2 to 0.8% based on the weight of monomers.

EFFECT: reduced cost of product and simplified technology thereof.

1 tbl, 9 ex

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SU 1 840 101 A1

Authors

Panshin Jurij Aleksandrovich

Loginova Nina Nikolaevna

Bronov Mark Vladimirovich

Podlesskaja Nehllja Konstantinovna

Krolikova Elena Nikolaevna

Dmitrieva Nina Sergeevna

Gol'Dinov Avram Lipovich

Ivanov Vitalij Aleksandrovich

Masljakov Aleksandr Ivanovich

Utkin Valentin Vasil'Evich

Dates

2006-06-27—Published

1978-03-02—Filed