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2 130 042

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IPC

(21) (22)

Application

97104818/04, 1997-03-25

(22)

Actual filing date

1997-03-25

(45)

Published

1999-05-10

(72)

Inventor

Sedel'Nikov A.I.Goncharov V.M.Peterson T.N.Alashkevich Ju.D.Gerlikh G.I.Zolin B.A.Klimanskij V.I.Radbil' B.A.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju

METHOD OF GUM RESIN Russian patent published in 1999 - IPC

Abstract RU 2130042 C1

FIELD: manufacture of tires and industrial rubber products. SUBSTANCE: hard rosin is modified by maleic anhydride and formaldehyde on heating in the presence of 0.02-0.05% based on weight of dimethylpolysiloxane rosin with viscosity of 200-400 sq m/s. Test resin samples make rubbers adhesive and make it possible to use resin based on tall hard rosin to replace pine gum rosin and rosin, grade EM-3. EFFECT: more efficient preparation method. 2 cl, 4 ex, 1 tbl

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RU 2 130 042 C1

Authors

Sedel'Nikov A.I.

Goncharov V.M.

Peterson T.N.

Alashkevich Ju.D.

Gerlikh G.I.

Zolin B.A.

Klimanskij V.I.

Radbil' B.A.

Dates

1999-05-10—Published

1997-03-25—Filed