| 摘要 |
<p>A coating varnish composition comprising a biodegradable polymer (A) comprising one or more kinds of constituent units (b) represented by the general formula (I), (II) or (III) and one or more other kinds of constituent units (a) capable of imparting bio-degradability: <CHEM> <CHEM> <CHEM> wherein in the formula (I), R<1> and R<2> are independently a hydrogen atom, a chlorine atom, a bromine atom, a methyl group, an ethyl group or a phenyl group; in the formula (II), R<3> and R<4> are independently a hydrogen atom, a chlorine atom, a bromine atom, or a substituted or unsubstituted methyl or ethyl group; in the formula (III), R<5> and R<6> are independently a hydrogen atom, a methyl group or an ethyl group, and R<7> is a straight, branched or cyclic alkyl group, an aryl group, a heterocyclic group or an aralkyl group, which may have one or more substituents.</p> |
