METHOD OF SYNTHESIS OF POLYFLUORINATED ESTERS BASED ON POLY- -CHLORODIPHENYLS USED AS INTERMEDIATE COMPOUNDS FOR PRODUCTION OF LUBRICANT OILS, ANTIADHESION AND ANTIFRICTION COMPOSITIONS Russian patent published in 2001 - IPC

Abstract RU 2168521 C2

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to synthesis of polyfluorinated esters based on polychlorodiphenyls used as intermediate compounds for production of lubricant oils, adhesion and antifriction compositions. Synthesis of indicated compounds is carried out by interaction of polyalkylene glycol that is product of double alkoxylation of trichloro- or pentachlorodiphenyl by polyethylene glycol with perfluoropolyester acid of the formula CF₃O(CF₂CF₂O)₄CF₂-COOH in the presence of sulfuric acid. EFFECT: improved method of synthesis, simplified equipments, increased yield of end product, absence of toxic compounds. 2 tbl, 7 ex

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RU 2 168 521 C2

Authors

Zapevalov A.Ja.

Gorbunova T.I.

Saloutin V.I.

Chupakhin O.N.

Bershadskij V.Ja.

Dates

2001-06-10—Published

1999-08-10—Filed