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US 12,606,668 B2Granted
Polyester resin blend
AssigneeSK Chemicals Co., Ltd.
InventorsDa-Young Hwang, Yoo Jin Lee
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a polyester resin blend. The polyester resin blend can provide a thick container with high transparency even if it contains recycled polyethylene terephthalate as well as virgin polyethylene terephthalate. In addition, the resin blend can be reused by itself, and is expected to be useful for providing continuously usable plastics that have been recently attracting attention.
Claims13
A polyester resin blend comprising polyethylene terephthalate;
- and
- a polyester resin having a structure in which an acid moiety derived from a dicarboxylic acid or a derivative thereof and a diol moiety derived from a diol are repeated by polymerizing a dicarboxylic acid or a derivative thereof and a diol containing ethylene glycol and a comonomer,
- wherein the polyester resin comprises 14 to 20 mol % of a diol moiety derived from a comonomer with respect to the total diol moiety derived from a diol, and the comonomer comprises isosorbide,
- wherein the polyester resin comprises 3 to 15 mol % of a diol moiety derived from isosorbide with respect to the total diol moiety derived from a diol, and
- wherein the polyester resin has a crystallization half-time of 75 minutes to 90 minutes.
2 more elements
Dependencies are inferred from the claim text.