DEFROSTING COMPOSITION Russian patent published in 2008 - IPC C09K3/18 

FIELD: chemistry.

SUBSTANCE: invention pertains to a defrosting composition, which consists of spirit or a mixture of spirits, a lubrication component, soluble in polar solvents of anticorrosive agents and an extra dispersed powder of polytetrafluoroethylene, nonionogenic surfactant and a hydrate an alkaline metal. The lubrication component used is in the form of liquid copolymers (C₁₄-C₁₆) of alpha-olefins, and alpha, beta saturated 1,4-dicarboxlylic acid, etherified short or medium chain spirits with molar mass from 600 to 7000. The percentage mass components of the composition are as follows: 0.5-3.5 % liquid polymers; 0.01-0.1 % anticorrosive agent; 0.5-3.5 % polytetrafluoroethylene; 0.001-0.015 % nonionogenic surfactant; 0.006-0.04 % hydrate of alkaline metal; spirit or a mixture of spirits constitute the remaining percentage.

EFFECT: composition with higher penetration capacity to the processed surface during defrosting, higher lubricating capacity and prolonged defrosting effect on metallic surfaces.

8 cl, 3 ex