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2 093 630

(13)

C1

(51)

IPC

(21) (22)

Application

97100620/12, 1997-01-16

(22)

Actual filing date

1997-01-16

(45)

Published

1997-10-20

(72)

Inventor

Trofimov V.M.Movchanjuk V.M.

(73)

Holder

Zao

METHOD OF PREPARING COMPOSITION FOR HYDROPHOBIZATION Russian patent published in 1997 - IPC

Abstract RU 2093630 C1

FIELD: water- proofing compositions. SUBSTANCE: invention relates to preparation of water-repelling compositions for hydrophobizing a variety of porous materials: cellulose articles, wood, building stones, etc. Sodium or potassium alkylsiliconate is mixed with phosphoric and/or boric acid for 1-25 min to achieve pH 3-9, whereupon mixture is supplemented with sodium or potassium silicate in amount providing pH of final product equal to 12-14. EFFECT: improved procedure. 5 cl, 1 tbl

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RU 2 093 630 C1

Authors

Trofimov V.M.

Movchanjuk V.M.

Dates

1997-10-20—Published

1997-01-16—Filed

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