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2 160 284

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IPC

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Application

98122458/04, 1998-12-15

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Start date

1998-12-15

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Actual filing date

1998-12-15

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Published

2000-12-10

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Inventor

Gabutdinov M.S.Jusupov N.Kh.Cherevin V.F.Zajtsev N.F.Il'Jasov A.Kh.Davletshin R.Kh.Zernov V.S.Kondrat'Ev Ju.N.Lanchin F.V.Shtamm S.B.Juzhin V.M.

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Holder

Kazanskoe Otkrytoe Aktsionernoe Obshchestvo Sintez"Aktsionernoe Obshchestvo Otkrytogo TipaAktsionernoe Obshchestvo Otkrytogo Tipa

ETHYLENE/VINYL ACETATE COPOLYMER PRODUCTION PROCESS Russian patent published in 2000 - IPC

Abstract RU 2160284 C2

FIELD: polymer production. SUBSTANCE: process including feeding monomers into high- pressure reactor and bulk polymerization at 300 C and pressure 120-250 MPa in presence of peroxide initiator dissolved in organic solvent is distinguished by that the latter is vinyl acetate or vinyl acetate/polyglycol mixture containing no more than 15 wt % polyglycol, initiator solution being introduced into ethylene/vinyl acetate mixture before the reaction inlet. Resulting copolymers show improved physico- chemical properties and form products with improved strength characteristics. Film manufactured from these copolymers is more transparent, strong, and resistant to atmospheric effects. EFFECT: reduced consumption of peroxide initiator and reduced flowability of copolymer melt. 6 ex

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RU 2 160 284 C2

Authors

Gabutdinov M.S.

Jusupov N.Kh.

Cherevin V.F.

Zajtsev N.F.

Il'Jasov A.Kh.

Davletshin R.Kh.

Zernov V.S.

Kondrat'Ev Ju.N.

Lanchin F.V.

Shtamm S.B.

Juzhin V.M.

Dates

2000-12-10—Published

1998-12-15—Filed