Abstract A coating composition according to the present invention employs a hydrolytic silan compound (organoalkoxysilane) as a binder in order to increase the effective surface area of a coating with the use of ultrafine granular materials, so that the antimicrobial efficacy afforded by the catalytic action of metal ions of an antimicrobial metal, e.g silver, copper, and zinc. Also, during the development of the coating, the antimicrobial metal ions which are in solution state in the composition, are adsorbed and secured to not only a filler but also a hydrolizate of the silan compound acting as the binder, ensuring improvements in the antimicrobial and deodorant properties. Antimicrobial deodorants prepared by coating granular materials with the compositions which are then heated at a low temperature for a short time for curing, are excellent in the antimicrobial and deodorant properties and also, exhibits the higher resistance to water, hot water, acids, organic chemicals, climate, and wear.
A coating composition comprising: (a) 5 to 45 parts by weight of at least a material which is selected from the group consisting of organoalkoxysilane represented by the general formula, R¹Si(OR²)₃ (where R¹ is an organic group having 1 to 8 carbon atoms and R² is an acyl group having 1 to 4 carbon atoms), hydrolyzate of the alkoxysilane, and partial condensates thereof; (b) 0.3 to 40 parts by weight of at least a filler which is selected from the group consisting of silica gel, zeolite, activated carbon, ultrafine metallic oxide, and potassium titanate whisker; (c) 0.03 to 3 parts by weight of an antimicrobial metal comprising at least a metal salt which is selected from the group consisting of silver, copper, and zinc salts; (d) 3 to 60 parts by weight of water; and (e) 5 to 80 parts of an alcohol, (where (a) + (b) + (c) + (d) + (e) = 100 parts by weight).
Claim 2
Dependent Claim
24 words
An antimicrobial deodorant formed by coating a granular material with the coating composition according to Claim 1 which is in turn heated for curing.
Claim 3
Dependent Claim
44 words
An antimicrobial deodorant according to Claim 2, wherein the granular material is at least selected from the group consisting of particles of sand, rubble stone, shell, glass, and baked inorganic clay matter having a particle size of 0.1 to 30 mm in average diameter.