Terpolymer compositions with improved clarity and gloss

A polymer composition and/or an article containing: (a) a random propylene terpolymer which comprises: (i) 90.0 - 96.0 wt. %, based on the total weight of the propylene terpolymer, of propylene derived units; (ii) 3.0 - 7.0 wt. %, based on the total weight of the propylene terpolymer, of 1- butene derived units; and (iii) 1.0 - 5.0 wt. %, based on the total weight of the propylene terpolymer, of ethylene derived units; and (b) about 0.01 to about 1.0 wt. %, based on the total weight of the propylene terpolymer, of a clarifying agent, with the balance of the polymer composition being the random propylene terpolymer and/or optionally at least one additive. 种聚合物组合物和/或制品，其包含：(a)无规丙烯三元共聚物，其包含：(i)以丙烯三元共聚物的总重量计，90.0-96.0wt.％的丙烯衍生单元；(ii)以丙烯三元共聚物的总重量计，3.0-7.0wt.％的1-丁烯衍生单元；以及(iii)以丙烯三元共聚物的总重量计，1.0-5.0wt.％的乙烯衍生单元；以及(b)以丙烯三元共聚物的总重量计，约0.01wt.％至约1.0wt.％的澄清剂，聚合物组合物的其余部分为无规丙烯三元共聚物和/或任选的至少种或多种添加剂。