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2 144 024

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IPC

(21) (22)

Application

98119896/04, 1998-10-28

(24)

Start date

1998-10-28

(22)

Actual filing date

1998-10-28

(45)

Published

2000-01-10

(72)

Inventor

Stankevich V.K.Kukharev B.F.Lopyrev V.A.Klimenko G.R.Belozerov L.E.Antonik L.M.Shelupaev A.P.Kolesnikov S.I.Barkova N.P.

(73)

Holder

Irkutskij Institut Khimii So Ran

METHOD OF PREPARING POLYHEXAMETHYLENE GUANIDINE Russian patent published in 2000 - IPC

Abstract RU 2144024 C1

FIELD: chemical industry. SUBSTANCE: described is method of preparing polymethylene guanidine by condensation of guanidine carbonate with hexamethylene diamine followed by treatment with polyhexamethylene guanidine carbonate with orthophosporic acid. Condensation of guanidine carbonate and hexamethylene diamine is carried out at temperature of 110-165 C in solvent having restricted solubility with respect to polyhexamethylene guanidine and carbonated thereof. EFFECT: higher bacteriostatic activity of the desired product. 4 ex, 1 tbl

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RU 2 144 024 C1

Authors

Stankevich V.K.

Kukharev B.F.

Lopyrev V.A.

Klimenko G.R.

Belozerov L.E.

Antonik L.M.

Shelupaev A.P.

Kolesnikov S.I.

Barkova N.P.

Dates

2000-01-10—Published

1998-10-28—Filed