申请人:Eastman Chemical Company
公开号:EP2562216A2
公开(公告)日:2013-02-27
This invention relates to a blend of biodegradable polymers comprising (A) about 5 % to about 95 % by weight of at least one flexible biodegradable polymer (A) having a glass transition less than about 0 °C, (B) about 5 % to about 95 % by weight of at least one rigid biodegradable polymer (B) having a glass transition greater than about 10 °C, and (C) about 0.25 to about 10 weight % of at least one compatibilizer (C), said percentages being based on the total weight of the polymer blend; where the polymer blend has a higher zero shear melt viscosity than polymers (A) and (B) separately.
本发明涉及一种生物可降解聚合物的混合物,该混合物包含(A) 至少一种玻璃化转变小于约 0℃的柔性生物可降解聚合物(A),按重量计约占 5%至约 95%;(B) 至少一种玻璃化转变大于约 10℃的刚性生物可降解聚合物(B),按重量计约占 5%至约 95%;以及(C) 至少一种相容剂(C),按重量计约占 0.25%至约 10%(重量百分比)的至少一种相容剂(C),所述百分比基于聚合物混合物的总重量;其中聚合物混合物的零剪切熔融粘度高于聚合物(A)和(B)的单独粘度。