COPOLYESTER POLYMER COMPOSITION WITH ENHANCED ELASTIC PROPERTIES

摘要

A copolyester elastomer composition is disclosed that contains a molecular weight enhancing agent that reacts with the copolyester elastomer at high temperatures. The composition of the present disclosure has excellent flow properties prior to reaction with the molecular weight increasing agent. Once an article is formed, the article can then be heated above a threshold temperature necessary for a reaction to occur between the molecular weight increasing agent and the copolyester elastomer. The reaction causes an increase in melting temperature, a decrease in hardness, and a decrease in melt volume flow rate.