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(19)

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2 088 601

(13)

(51)

IPC

(21) (22)

Application

5001095/04, 1991-07-12

(22)

Actual filing date

1991-07-12

(45)

Published

1997-08-27

(72)

Inventor

Chejvez DzhonniMakkljur Krejg A.[Us]Plepis Rehjmond A.[Us]Kent Van A.[Us]Gerstl Richard N.[Us]

(73)

Holder

Dze Dau Kemikal Kompani

METHOD OF DECREASE OF PROPENYL POLYESTER AMOUNT IN POLYESTERS WITH FUNCTIONAL HYDROXYL GROUPS Russian patent published in 1997 - IPC

Abstract RU 2088601 C1

FIELD: chemical technology. SUBSTANCE: method involves contact of the neutralized hydroxyl-containing polyester with acid catalyst at amount 0.03-0.5 meq./1 kg polyester in the presence of water followed by mixing the treated polyester with epoxy compound taken at amount 1-300 eq./1 eq. catalyst. EFFECT: improved method process.

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RU 2 088 601 C1

Authors

Chejvez Dzhonni

Makkljur Krejg A.[Us]

Plepis Rehjmond A.[Us]

Kent Van A.[Us]

Gerstl Richard N.[Us]

Dates

1997-08-27—Published

1991-07-12—Filed