Method for protecting cementware from frost-damage

Details Method for protecting cementware from frost-damage Method for protecting cementware from frost-damage

B - Operations, Transporting

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B

117/186, 400/533

B32B 13/12 (2006.01) C04B 41/49 (2006.01) C04B 41/64 (2006.01) C08G 18/10 (2006.01) C09D 175/04 (2006.01)

Patent

CA 1134972

ABSTRACT OF THE DISCLOSURE A method of protecting cementware from frost-damage, which com- prises coating the cementware with a moisture-cure type urethane resin coat- ing impregnated with a web-like or three-dimensionally structured organo- polysiloxane compound represented by the empirical formula: R2Si2O3 wherein R is alkyl, hydroxyalkyl, aryl or aralkyl, of about 0.5 to 50 parts by weight relative to 100 parts by weight of resin portion in the urethane resin coating, and a composition therefor. The cementware applied with the composition has an excellent water repellency and an improved protective ef- fect from frost-damage.

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