Patent · US Expired

Copolyesters from ether-containing glycols and acids

US4518763A · kind A · utility

3Cited by
2References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 21, 1984
Grant dateMay 21, 1985
Priority date—
Expiry dateMay 21, 2004

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G63/6886
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Disclosed are polyesters prepared from hetero-atom-containing dicarboxylic acids and hetero-atom-containing diols. These polyesters have low permeability to oxygen and carbon dioxide and are useful in packaging applications such as for food and beverages.

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