Patent · US Expired

Process for intensifying information in photo-addressable side-chain polymers

US5858585A · kind A · utility

16Cited by

6References

4Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Dietrich Haarer · Bayreuth, DE
Thomas Bieringer · Odenthal, DE
Claus D. Eisenbach · Sindelfingen, DE
Karl Fischer · Burns Lake, CA
Ralf Ruhmann · Berlin, DE
Roland Wuttke · Bayreuth, DE
Joachim Stumpe · Berlin, DE
Thomas Fischer · Graz, AT
Lutz Laser · Berlin, DE
Michael Rutloh · Berlin, DE
Uwe Claussen · Leverkusen, DE

Key dates

Filing date	Feb 28, 1997
Grant date	Jan 12, 1999
Priority date	—
Expiry date	Feb 28, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG11B7/245
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The light-induced modification in a side-chain polymer containing at least one side group whose configuration can be modified induced by light and at least one permanently shape-anisotropic side group can be amplified by warming to a temperature between the glass transition temperature and the clearing point. This effect opens up new aspects for optical data storage.

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