LONG-CHAIN POLYETHER POLYOLS WITH HIGH CONTENT OF PRIMARY HYDROXYL GROUPS Russian patent published in 2004 - IPC

Abstract RU 2242485 C2

FIELD: polyether polyols.

SUBSTANCE: polyether polyols contain 40-95 % of primary hydroxyl groups and >25 % in total of poly(oxyethylene/oxypropylene)-terminated oxyethylene blocks, obtained in presence of zeolite catalyst. Invention also relates to method for polyol production.

EFFECT: long-chain polyether polyols with high content of primary hydroxyl groups; decreased catalyst content.

8 cl, 4 ex

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RU 2 242 485 C2

Authors

Khofmann Jorg

Gupta Pramod

Ditrikh Manfred

Dates

2004-12-20Published

2000-04-11Filed