Patent · US Expired

Optical recording medium

US5124240A · kind A · utility

2Cited by

8References

3Claims

0Family size

Inventors

Sibylle Brosius · Ludwigshafen, DE
Bernhard Albert · Monsheim, DE
Michael Schmitt · Worms, DE
Klaus D. Schomann · Stockach, DE
Harald Kuppelmaier · Heidelberg, DE
Ulrich Harten · Stockach, DE

Key dates

Filing date	Mar 16, 1990
Grant date	Jun 23, 1992
Priority date	—
Expiry date	Mar 16, 2010

Classification

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

Abstract

An optical recording medium consists essentially of a base material and a light-absorbing layer which contains a thermoplastic binder and at least one dye, wherein the thermoplastic binder is a polycyclic hydrocarbon which has a glass transition temperature Tg of greater than 150.degree. C. and is soluble to more than 3% by weight in an aliphatic or aromatic hydrocarbon.

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