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2 086 584

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C1

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IPC

(21) (22)

Application

93046217/04, 1993-09-27

(22)

Actual filing date

1993-09-27

(45)

Published

1997-08-10

(72)

Inventor

Arkhipova L.I.Savel'Ev A.P.Zavodchikova N.N.Chumakov L.V.Loktionov N.A.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij Institut Khimii I Tekhnologii Polimerov Im.Akad.V.A.Kargina S Opytnym Zavodom

POLYMERIC COMPOSITION Russian patent published in 1997 - IPC

Abstract RU 2086584 C1

FIELD: chemistry of polymers. SUBSTANCE: composition comprises, pts: PVC, 100; thermostabilizer, 1.1-6.0; and modifier, 8.15. Modifier is prepared by suspension polymerization of vinyl chloride with ethylene-vinyl acetate copolymer in the presence of suspension stabilizer and initiator solution. Initiator is synthesized prior to addition of vinyl chloride directly in polymerization zone by reacting chloroformate with hydrogen peroxide in aqueous alkaline medium at chloroformate to alkali molar ratio of 1:2. The modifier includes units, %: vinyl chloride, 10-40; ethylene, 48-72; and vinyl acetate, 12-18. EFFECT: improved properties of the polymeric composition. 1 tbl

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RU 2 086 584 C1

Authors

Arkhipova L.I.

Savel'Ev A.P.

Zavodchikova N.N.

Chumakov L.V.

Loktionov N.A.

Dates

1997-08-10—Published

1993-09-27—Filed

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