Patent · US Expired

Polyester film for metal sheet laminating

US6086978A · kind A · utility

1Cited by
6References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 29, 1998
Grant dateJul 11, 2000
Priority date
Expiry dateJun 29, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31681
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A film to be laminated onto a metal plate and molded, which includes a first copolyester including ethylene-2,6-naphthalene dicarboxylate as a main recurring unit or a blend of the first copolyester and a second copolyester including terephthalate as a main recurring unit. Both the first copolyester and the blend contain diethylene glycol in an amount of 0.05 to 8 mol %. This film has a water extraction of 0.5 mg/inch.sup.2 or less and a center line surface roughness (Ra) of 4 to 30 nm.

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