COMPOSITION FOR PREVENTING SNOW ACCRETION AND ICE COATING AND METHOD FOR PREVENTING SNOW ACCRETION AND ICE COATING

摘要

PROBLEM TO BE SOLVED: To obtain a composition exhibiting stable prevention effect of snow accretion and ice coating on shape of snow and daily difference in temperature and humidity and to provide a method for preventing snow accretion and ice coating. SOLUTION: This composition for preventing ice coating and snow accretion comprises a copolymer as a main component composed of a hydrophobic constituent unit and a hydrophilic constituent unit in which the hydrophobic unit contains one unit represented by general formula (1) or general formula (2) (R1 and R2 are each H or a 1-10C hydrocarbon group; R3 is H or 1-10C aliphatic hydrocarbon group; RF1 and RF2 is H or a perfluoroalkyl group obtained by substituting a part of H of a 1-20C hydrocarbon group with F) and the hydrophilic unit contains one unit represented by general formula (3) or (4) (R4 and R5 are each H or 1-10C hydrocarbon group; R6 is C or a 1-10C aliphatic hydrocarbon group; R7 and R8 are each a 2-10C straight-chain or branched-chain oxyalkylene group; R9 and R10 are each H or a 1-10C hydrocarbon group; p and q are each 1-50).