| 摘要 |
<p>Docket No.: 60Si-1402 A coating cornposition having improved abrasion resistance is provided, which comprises (A) a composition comprising (1) an organooxy-chainstopped organopolysilsesquioxane, (2) a tetraorganotitanats, (3) (a) a siloxanefunctionalized ester having the genoral formula (R3O)3-2nSiOnR4OC(O)R5C(O)OR6, wherein n is equal to 0, 1/2, or 1, each R3 is independantly a saturated or unsaturated monovalent hydrocarbon radical containing from 1 to about 20 carbon atoms, R4 is a divalent hydrocarbon radical containing from 1 to about 20 carbon atoms, Rs is a divalent conjugated olefinic radical having from 2 to 4 carbon atoms, and R6 is R3 or R4SiOn(OR3)32n; or (b) a cyanoorganotriorganooxysilane; and (4) an organic carboxylic acid ester; and (B) from 0% to about 85% of a volatile diluent. Also provided is a coating composition having improved abrasion resistance wherein part (A) is a copolymer of the organopolysilsesquioxane (A)(1 ) above and the ester (A)(3).</p> |
