C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 7/12 (2006.01) C08K 3/36 (2006.01)
Patent
CA 2541996
The instant invention discloses a coating composition comprising a) an organic film-forming binder, and b) an inorganic additive of small particle size dispersed in an aqueous or alcoholic solvent prepared by a process which comprises the hydrolysis of a metal alcoholate or a compound of the formula (I) in which R1is C1-C8alkyl, C5-C8cycloalkyl, phenyl or C1-C4alkyl substituted phenyl; R2 is C1-C8salkyl, and n is 0, 1, 2 or 3; with a base. These coatings for protecting surfaces are reinforced and show improved scratch resistance.
La présente invention concerne une composition de revêtement comprenant (a) un liant filmogène organique, et (b) un additif inorganique de faible dimension granulométrique dispersé dans un solvant aqueux ou alcoolique préparé au moyen d'un procédé consistant à hydrolyser un alcoolate métallique ou un composé de formule (I) avec une base. Dans cette formule, R¿1? est alkyle C¿1?-C¿8?, cycloalkyle C¿5?-C¿8?, phényle ou phényle à substitution alkyle C¿1?-C¿4?, R¿2? est alkyle C¿1?-C¿8?, et n vaut 0, 1, 2 ou 3. Ces revêtements destinés à protéger des surfaces sont renforcés et présentent une meilleure résistance à la rayure.
Albrecht Martin
Jung Tunja
Muehlebach Andreas
Ciba Specialty Chemical Holding Inc.
Fetherstonhaugh & Co.
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