Abstract:
A method for preparing poly(butylene terephthalate-co-adipate) copolymer by polymerizing 1,4-butane diol, an adipic acid component and an aromatic dicarboxy compound derived from polyethylene terephthalate, and a polyester component residue in the presence of a catalyst under conditions effective to form poly(butylene terephthalate-co-adipate) oligomers; adding a quencher; and reacting the quenched poly(butylene terephthalate-co-adipate) oligomers with a chain extender.
Abstract:
A method for preparing poly(butylene terephthalate-co-adipate)copolymer includes reacting (i) poly(butylene terephthalate-co-adipate)oligomers, wherein the oligomers comprise at least one polymer residue derived from a polyethylene terephthalate component and a quencher, with (ii) a chain extender under conditions sufficient to form the poly(butylene terephthalate-co-adipate)copolymer.