A coating composition that includes: (a) core-shell particles having a polymeric core at least partially encapsulated by a polymeric shell; (b) an ethylenically unsaturated rubber polymer; and (c) an adhesion promoter including at least one polymer that is different from (a) and (b). The polymeric shell of (a) includes: (i) a barrier segment having aromatic groups; and urethane linkages, urea linkages, or a combination thereof; and (ii) an elastomeric segment that is different from (i), in which the polymeric shell is covalently bonded to at least a portion of the polymeric core. Further, the ethylenically unsaturated rubber polymer is: (i) a polymeric particle dispersed in an aqueous medium that is different from (a); or (ii) covalently bonded to the shell of the core-shell particles of (a) and forms at least a portion of the polymeric core.
                            一种涂层组合物,包括(a) 芯壳粒子,其聚合物芯至少部分被聚合物壳包裹;(b) 
乙烯基不饱和橡胶聚合物;以及 (c) 附着力
促进剂,包括至少一种不同于(a)和(b)的聚合物。(a) 的聚合物外壳包括(i)具有芳香基团的阻隔段;和聚
氨酯连接、
脲连接或其组合;和(ii)不同于(i)的弹性体段,其中聚合物外壳与聚合物芯的至少一部分共价键合。此外,
乙烯基不饱和橡胶聚合物还包括:(i) 不同于(a)的分散在
水介质中的聚合物颗粒;或(ii) 与(a)的核壳颗粒的外壳共价键合,并形成聚合物芯的至少一部分。