The present invention is a composition comprising a linear saturated polyester and from 0.5 to 30 percent by weight of the polyester of at least one ester of a polyfunctional alcohol having a molecular weight of from 900 to about 1,500. The ester is of an alcohol and a carboxylic acid wherein the alcohol has the formula
R¹[(OR²)nOH]m
wherein R¹ is a hydrocarbon radical of from 3 to 10 carbon atoms, R² is a hydrocarbon radical of from 2 to 4 carbon atoms, n can be the same or a different integer of from 2 to 15, m is an integer of from 3 to 6. The alcohol has greater than 20 carbon atoms.The acid is a carboxylic acid of from 1 to 25 and preferably 3 to 10 carbon atoms, and from 1 to 10 carboxyl groups. Preferably the acid has from 3 to 10 carbon atoms and one carboxyl group.
本发明是一种组合物,包括线性饱和聚酯和至少一种分子量为 900 至约 1,500 的多官能醇酯(按聚酯重量计)的 0.5% 至 30%。该酯由醇和
羧酸组成,其中醇的分子式为
R¹[(OR²)nOH]m
其中 R¹ 是 3 至 10 个碳原子的烃基,R² 是 2 至 4 个碳原子的烃基,n 可以是相同或不同的 2 至 15 的整数,m 是 3 至 6 的整数。醇的碳原子数大于 20 个。酸是一种
羧酸,其碳原子数为 1 至 25 个,最好为 3 至 10 个,羧基数为 1 至 10 个。酸最好具有 3 至 10 个碳原子和一个羧基。