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2 471 032

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IPC

D21H11/00(2006-01-01)

D21H17/17(2006-01-01)

(21) (22)

Application

2011120634/05, 2011-05-24

(24)

Start date

2011-05-24

(22)

Actual filing date

2011-05-24

(45)

Published

2012-12-27

(72)

Inventor

Semkina Ljudmila IvanovnaBerezina Ljudmila PavlovnaMazitov Leonid AskhatovichKovalev Sergej AleksandrovichSarana Ninel' Vasil'EvnaBol'Shakov Vladimir AlekseevichTjurin Evgenij TimofeevichZerkalova Galina Pavlovna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Bumazhnaja Fabrika"Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatel'Skij Institut Bumagi"

PAPER PULP FOR MAKING PAPER Russian patent published in 2012 - IPC D21H11/00 D21H17/17

Abstract RU 2471032 C1

FIELD: textiles, paper.

SUBSTANCE: mass contains hardwood and softwood pulp, microfibrillated cellulose fibers, alkyl ketene dimer, sodium carboxymethyl cellulose. The ratio of the components, wt %: hardwood pulp 75.0-99.18, softwood pulp 0.00-19.40, microfibrillated cellulose fibers 0.50-10.00, alkyl ketene dimer 0.02-0.12, sodium carboxymethyl cellulose 0.30 -1.20.

EFFECT: invention enables to improve the strength of paper.

1 tbl

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RU 2 471 032 C1

Authors

Semkina Ljudmila Ivanovna

Berezina Ljudmila Pavlovna

Mazitov Leonid Askhatovich

Kovalev Sergej Aleksandrovich

Sarana Ninel' Vasil'Evna

Bol'Shakov Vladimir Alekseevich

Tjurin Evgenij Timofeevich

Zerkalova Galina Pavlovna

Dates

2012-12-27—Published

2011-05-24—Filed