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2 200 168

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IPC

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Application

2001109134/04, 2001-04-05

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Start date

2001-04-05

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Actual filing date

2001-04-05

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Published

2003-03-10

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Inventor

Shcherban' G.T.Shijapov R.T.Shamsutdinov V.G.Jakushev Ju.N.Gavrikov V.N.Khabibullin R.Kh.Khakimov R.G.Khasanov N.T.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

BUTYL RUBBER MANUFACTURE PROCESS Russian patent published in 2003 - IPC

Abstract RU 2200168 C2

FIELD: rubber industry. SUBSTANCE: butyl rubber is manufactured by isobutylene/isoprene copolymerization in methyl chloride medium in presence of aluminum chloride added in methyl chloride solution. Process involves preparation of polymerization blend, degassing of rubber, drying of rubber, and processing of recycled products. Mooney viscosity of butyl rubber during the process is stabilized by varying concentration of catalyst in methyl chloride within a range of 0.015 to 0.125 wt % and value of solid residue of rubber dispersion is maintained on specified level by varying dosage of catalyst within a range of 0.015 to 0.035% of the weight of isobutylene. EFFECT: increased controllability of process and homogeneity of rubber and reduced expenses on power and raw material. 4 dwg, 9 ex

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RU 2 200 168 C2

Authors

Shcherban' G.T.

Shijapov R.T.

Shamsutdinov V.G.

Jakushev Ju.N.

Gavrikov V.N.

Khabibullin R.Kh.

Khakimov R.G.

Khasanov N.T.

Dates

2003-03-10—Published

2001-04-05—Filed

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