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2 130 986

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C1

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IPC

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Application

98112443/12, 1998-06-24

(22)

Actual filing date

1998-06-24

(45)

Published

1999-05-27

(72)

Inventor

Kuchin A.V.Demin V.A.Osipova G.Ja.Kocheva L.S.Lepljanin G.V.Shaul'Skij Ju.M.Frolova S.V.

(73)

Holder

Institut Khimii Komi Nauchnogo Tsentra Ural'Skogo Otdelenija Ran

METHOD OF MANUFACTURING PAPER PULP Russian patent published in 1999 - IPC

Abstract RU 2130986 C1

FIELD: pulp-and-paper industry. SUBSTANCE: invention relates to production of printer's paper. Water- fibrous dispersion of cellulose fiber is prepared, which is supplemented, glued, and precipitated with coagulant and flocculant, the former being titanyl sulfate and ammonium sulfate and the latter: polysulfone-pyrrolidinium chloride, MW 2500-3000; or copolymer of methacrylamide with methacrylic acid ammonium salt, MW 10000-100000; or piperylene-acrylonitrile copolymer, MW 10000; or piperylene-methacrylic acid copolymer, MW 10000. EFFECT: enhanced efficiency of paper production, improved physico-chemical characteristics of paper, and reduced specific consumption of wood. 2 cl, 1 tbl, 5 ex

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RU 2 130 986 C1

Authors

Kuchin A.V.

Demin V.A.

Osipova G.Ja.

Kocheva L.S.

Lepljanin G.V.

Shaul'Skij Ju.M.

Frolova S.V.

Dates

1999-05-27—Published

1998-06-24—Filed

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