Catalyst system for crystallizable reactor grade resins with reclaimed material content

The present disclosure relates to catalyst systems for producing crystallizable polyester compositions comprising residues of terephthalic acid, neopentyl glycol (NPG), 1, 4-cyclohexanedimethanol (CHDM), ethylene glycol (EG), and diethylene glycol (DEG) in specific composition ranges having certain advantages and improved properties, including recoverability. The present disclosure also relates to catalyst systems for the production of crystallizable polyester compositions comprising residues of recovered terephthalic acid, recovered neopentyl glycol (NPG), recovered 1, 4-cyclohexanedimethanol (CHDM), recovered ethylene glycol (EG), and/or recovered diethylene glycol (DEG) within specific composition ranges having certain advantages and improved properties, including recoverability. 本公开涉及用于生产具有某些优点和改进的性质，包括可回收性的包含在特定组成范围内的对苯二甲酸、新戊二醇（NPG）、1,4-环己烷二甲醇（CHDM）、乙二醇（EG）和二乙二醇（DEG）的残基的可结晶聚酯组合物的催化剂体系。本公开还涉及用于生产具有某些优点和改进的性质，包括可回收性的包含在特定组成范围内的回收对苯二甲酸、回收新戊二醇（NPG）、回收1,4-环己烷二甲醇（CHDM）、回收乙二醇（EG）和/或回收二乙二醇（DEG）的残基的可结晶聚酯组合物的催化剂体系