| 摘要 |
<p>An unsaturated copolymer comprising at least one C2-12 alpha -olefin (e.g. ethylene, propylene, 4-methylpentene-1) and 1-50 mol % of at least one 1,4-diene, of formula:
<CHEM>
wherein R<1> is C1-8 alkyl and R<2> and R<3> each are hydrogen or C1-8 (e.g. 1,4-hexadiene, 4- or 5-methyl-1, 4-hexadiene) is modified to introduce a hydroxyl group or epoxy group into at least 1% of an olefinically unsaturated bond in the copolymer.
<??>The hydroxy or epoxy group can be introduced by oxidization, or adding an -OH containing compound (e.g. a thiol or phenol), or epoxy group compound (e.g. a thiol).
<??>The modified polymer has excellent adhesion to inks, paints and metals and excellent strength as a binder for resins. </p> |
