Patent · US Active

Thermoplastic polyester having enhanced barrier and impact properties

US9777150B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

ANHEUSER-BUSCH INBEV S.A. · BE

Inventors

Daniel Peirsman · Leuven, BE
Vanessa Valles · Leuven, BE
Ajay Godara · Leuven, BE

Key dates

Filing date	Sep 23, 2014
Grant date	Oct 3, 2017
Priority date	—
Expiry date	Oct 4, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2203/10
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polyester composition is suitable for food and beverage packaging. The polyester composition is obtained by blending: (a) 90-97 wt. % of a thermoplastic polyester selected from polyethylene terephthalate, polyethylene naphthalene, and mixtures thereof, (b) 2-6 wt. % of MXD6, (c) 1-5000 ppm of a cobalt salt, (d) 0.1-1000 ppm ethylene glycol (EG), and (e) 0.1-1000 ppm of pyromellitic dianhydride (PMDA).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.