WATER-COMPATIBLE EPOXIDE-PHENYL BACKFILL COMPOUND Russian patent published in 2012 - IPC C09K8/44 E21B33/138 

Abstract RU 2458961 C1

FIELD: chemistry.

SUBSTANCE: compound is a set of expoxide-containing resin containing a resinous part and amine-type curing agent. The epoxide resinous base is obtained through epoxidation of an aromatically conjugated hydroxyphenylene, having degree of polycondensation n=2, obtained at temperature 240-260°C from diphenol (alkyl resorcinol), with diglycidyl ether of diethylene glycol with degree of polycondensation n=0-2 in molar ratio 1:5, respectively; epoxidation is carried out at temperature 120-165°C in the presence of 0.15-0.35 wt % 2,4,6-trisdimethylaminomethylphenol to weight ratio of epoxide groups of 6.0-9.0% and the resinous part further contains 15-25 wt % process water and the following content of ingredients of the compound, pts.wt: said resinous part 100, amine-type curing agent 2.0-12.0.

EFFECT: high efficiency of sealing water influx.

2 cl, 1 tbl

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RU 2 458 961 C1

Authors

Meshcherjakov Jurij Jakovlevich

Rogozinskaja Lada Jur'Evna

Medvedkov Sergej Jur'Evich

Pertsev Aleksej Vasil'Evich

Berezin Oleg Anatol'Evich

Trushin Mikhail Vasil'Evich

Shrajbman Vladimir Moiseevich

Chudinov Nikolaj Pavlovich

Kljachin Oleg Nikolaevich

Dates

2012-08-20Published

2011-02-07Filed