Patent · US Expired

Blown polyester film

US6013360A · kind A · utility

2Cited by
5References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 14, 1997
Grant dateJan 11, 2000
Priority date
Expiry dateJul 14, 2017

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31786
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Film obtained by blowing, using the bubble method from aromatic polyester resins containing a dianhydride of an aromatic tetracarboxylic acid, having thickness inferior to 10 .mu.m.

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