申请人:Hitachi Chemical Co., Ltd.
公开号:EP0711813A2
公开(公告)日:1996-05-15
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:
wherein in the formula (I), R¹ and R 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), R³ and R⁴ are independently a hydrogen atom, a chlorine atom, a bromine atom, or a substituted or unsubstituted methyl or ethyl group; in the formula (III), R⁵ and R⁶ are independently a hydrogen atom, a methyl group or an ethyl group, and R⁷ 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.
一种涂料清漆组合物,包含一种可生物降解聚合物 (A),该聚合物包含一种或多种由通式 (I)、(II) 或 (III) 表示的组成单元 (b) 和一种或多种可赋予生物降解性的其他组成单元 (a):
其中,在式 (I) 中,R¹ 和 R 独立地为氢原子、氯原子、溴原子、甲基、乙基或苯基;在式 (II) 中,R³ 和 R⁴ 独立地为氢原子、氯原子、溴原子或取代或未取代的甲基或乙基;在式 (III) 中,R⁵ 和 R⁶ 独立地是氢原子、甲基或乙基,R⁷ 是直链、支链或环状烷基、芳基、杂环基或芳烷基,它们可以有一个或多个取代基。