| 摘要 |
Compounds represented by the formulae: <IMAGE> +TR <IMAGE> wherein: (a) each R in the compound is independently 1-phenylethyl, 2-phenylethyl, 2-phenylpropyl, or 1-methyl-1-phenylethyl; (b) each R' in the compound is independently alkyl containing from 6 to 18 carbon atoms; (c) the average value of a is in the range of from 0 to 1; (d) the value of i is an integer in the range of from 0 to about 200; (e) the value of j is an integer in the range of from about 2 to about 20; (f) the value of k is an integer in the range of from about 2 to about 60; (g) the ratio k/j is in the range of from 1 to about 10; (h) the sum of the values of i, j, k, and m is in the range of from about 10 to about 280; and (i) the value of m is an integer such that m/(j+k+m) is in the range of from 0 to about 0.15. provide satisfactory scratch and mar resistance to many coatings and are bloom-resistant. The low bloom markedly improves paintability of the coatings. Moreover, the silicone-based compounds have high refractive indices. Since the refractive index of a coating depends upon the refractive indices of its components, these silicone-based compounds are useful as components of high gloss coatings.
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