prov:value
| - wherein R is an alkoxy group preferably having 1-3 carbon atoms; an acyloxy group preferably having 2-4 carbon atoms, or a halogen; R' is a substituted or unsubstituted alkyl, alkenyl or aryl group, which includes, for example, --(CH2)3 NH2, --(CH2)3 SH, --(CH2)3 --NH--C2 H5, --(CH2)3 NH--(CH2)2 NH2, --CH???CH2, ##STR1## and the like; and n is 1, 2 or 3; titanate coupling agents represented by the
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