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2 516 645

(13)

(51)

IPC

B01D71/06(2006-01-01)

B01D67/00(2006-01-01)

B01D61/16(2006-01-01)

(21) (22)

Application

2012157681/05, 2012-12-28

(24)

Start date

2012-12-28

(22)

Actual filing date

2012-12-28

(45)

Published

2014-05-20

(72)

Inventor

Tarasov Aleksandr ValentinovichFedotov Jurij AleksandrovichLepeshin Sergej AleksandrovichFedotova Anastasija Igorevna

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Proizvodstvennoe Predprijatie

METHOD OF TREATING SEMIPERMEABLE POLYMER MEMBRANES Russian patent published in 2014 - IPC B01D71/06 B01D67/00 B01D61/16

Abstract RU 2516645 C1

FIELD: chemistry.

SUBSTANCE: after production, the semipermeable polymer membrane is treated with silver, copper or zinc nitrate solution or silver, copper or zinc sulphate solution, wherein treatment is carried out with said salts which are dissolved in a mixture of water and formic acid, with the following ratio of components (pts.wt): silver, copper or zinc nitrate or silver, copper or zinc sulphate - (0.05-5.0); formic acid - (2.0-20.0); water - (75.0-97.95); treatment is carried out at temperature of 40-60°C, followed by washing and drying.

EFFECT: improved bactericidal properties of the membrane.

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RU 2 516 645 C1

Authors

Tarasov Aleksandr Valentinovich

Fedotov Jurij Aleksandrovich

Lepeshin Sergej Aleksandrovich

Fedotova Anastasija Igorevna

Dates

2014-05-20—Published

2012-12-28—Filed