Patent ID: 6610777
Filing Date: 2003-08-26
Classification: B82Y,C08J,C08K,C09D

Abstract:
A coating composition formed from components comprising:(a) at least one polysiloxane comprising at least two reactive functional groups, the at least one polysiloxane comprising at least one of the following structural units (I): R1nR2mSiO(4âˆ’nâˆ’m)/2â€ƒâ€ƒ(I) â€ƒwherein each R1, which may be identical or different, represents H, OH, a monovalent hydrocarbon group or a monovalent siloxane group; each R2, which may be identical or different, represents a group comprising at least two reactive functional groups, wherein m and n fulfill the requirements of 0&lE;n<4, 0(b) at least one reactant comprising at least one functional group that is reactive with at least one reactive functional group of (a), provided, when said at least one material comprises at least one polyol, said polyol has a hydroxyl value ranging from 100 to less than 200, wherein each component is different, wherein a coating formed from the coating composition when cured has a flexibility rating according to a Flexibility Test Method of at least 6 at a temperature of 70Â° F., and wherein the coating formed from the coating composition when cured has an initial scratch resistance value such that after scratch testing greater than 40 percent of initial 20Â° gloss is retained.