C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 183/06 (2006.01) C08K 3/22 (2006.01) C09D 5/16 (2006.01) C09D 7/12 (2006.01) C09D 183/04 (2006.01)
Patent
CA 2253504
The present invention is directed to an antifouling silicone emulsion coating composition comprising the following components (A), (B), (C) and (D). The amount of component (C) incorporated in the composition being in the range of 5 to 80 % by weight relative to the total solid contents in the composition. The components are defined as follows: (A) partially hydrolyzed organosiloxane with a weight-average molecular weight of 600 to 5,000 (determined using a polystyrene calibration curve), represented by the average formula (I): R2aSiOb (OR1)c(OH)d wherein R1 and R2 represent a monovalent hydrocarbon group; a, b, c and d are numerals satisfying the following relationships: a + 2b + c + d = 4, 0<=a<3, 0<b<2, 0<c<4, and 0<d<4; (B) nonionic or anionic surface active agent; (C) photo-semiconductor; and (D) water.
Composition antisalissures à émulsion de silicone comprenant les composants (A), (B), (C) et (D). La proportion du composant (C) représente 5 à 80 % en poids de l'extrait sec total de la composition. (A) est un hydrolysat partiel d'un organosiloxane représenté par la formule (I) suivante qui correspond à la composition moyenne: R<2>aSiOb(OR<1>)c(OH)d (dans laquelle R<1> et R<2> représentent chacun un groupe hydrocarbure monovalent et a, b, c et d sont des nombres répondant aux conditions suivantes: a+2b+c+d=4, 0</=a<3, 0<b<2, 0<c<4 et 0<d<4) et dont le poids moléculaire moyen est compris entre 600 et 5 000 (pour le polystyrène), (B) est un tensioactif non ionique ou anionique, (C) un semi-conducteur optique et (D) l'eau.
Goto Akiharu
Ikenaga Junko
Inoue Minoru
Kishimoto Hirotsugu
Takahama Koichi
Kirby Eades Gale Baker
Matsushita Electric Works Ltd.
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