主权项 |
1. A mold release composition for forming a coating on a mold surface, the composition comprising a polysiloxane having the formula of formula 1: where y≧3 and x is ≧0, where a reactive moiety for the purposes of the present invention include those moieties that react on the mold surface to form bonds to other polymers of Formula (I), the mold surface, or both, where reactive moieties comprise one or more of R4, R5, R6, or R7 , where R4, R5, R6, or R7 are the same or different and each is independently one or more of reactive moieties of glycydoxy, C1-C8 alkoxy, C1-C8 alkoxy having a substituent, a halogen of fluorine or chlorine, a C1-C8 halo alkyl, a C0-C8 hydroxyl alkyl, a primary or secondary amine having each group being C0-C8, an isocyanate, an ureido, a C2-C8 ethylenically unsaturated group, a C2-C8 ethylenically unsaturated group having a substituent, an acrylic, allyl alcohol, a halide, a hydroxyl group, methylacryloxy, acryloxy, mercapto, vinyl, styryl, chloropropyl, and sulfido, or independently one or more of unreactive moieties C1-C8 or longer alkyl, either branched or unbranched; and where R1R2, R3, R8, R9, and R10 can be the same or different and each independently is a saturated C1-C8 or greater alkyl, either linear or branched. |