| http://www.w3.org/ns/prov#value | - U.S. Pat. No. 4,677,153 relates to a method for modifying a rubber having unsaturated carbon-to-carbon bonds (i.e. double bonds) with (a) an organic compound having a group represented by the formula --CH???N--and (b) an organic acid halide having a group represented by the formula --COX wherein X is a halogen atom, in the presence of a Lewis acid.
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