prov:value
| - which is represented by the formula, ##STR14## wherein R is a lower alkyl group or radical of one to three carbon atoms,R1 is a monovalent hydrocarbon radical of 4 to 20 carbon atoms, E is a monovalent epoxy-containing hydrocarbon radical, M is a silyl group R3 Si--, R2 R1 Si-- or R2 ESi--, where R, R1, and E are defined above, a is 5 to 200, b is 0 or up to 20% of a, a+b is 5 to 200, c may be 0 w
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