Patent · US Expired

Article for optical data storage device

US6221556A · kind A · utility

78Cited by
27References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 5, 1999
Grant dateApr 24, 2001
Priority date
Expiry dateMar 5, 2019

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S430/146
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Disclosed is an article for the optical storage of data having low birefringence prepared from a mixture of a polycarbonate and a cycloaliphatic polyester. The article may optionally have stabilization and mold release additives that retain transparency, color and processability.

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