The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 09, 1981

Filed:

Jul. 20, 1978
Applicant:
Inventors:

Gerardus J Lippits, Eindhoven, NL;

Arnoldus J van den Broek, Eindhoven, NL;

Rinse Dijkstra, Eindhoven, NL;

Assignee:

U.S. Philips Corporation, New York, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428 64 ; 346 / ; 346 / ; 3461351 ; 346137 ; 3581285 ; 428172 ; 428412 ; 428419 ; 428522 ; 428413 ;
Abstract

The invention relates to an information disc having a laminated structure which can be read optically. The information disc comprises a transparent substrate which is preferably manufactured from a synthetic resin, for example plexiglass, having thereon a radiation-cured lacquer layer in which the information track is present. The lacquer layer used comprises a radiation-cross linkable protic compound which after curing is aprotic. The lacquer layer preferably comprises a polythiol compound as well as a polyene compound in an equivalent ratio of 1:1.


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Lippits, Gerardus. (1981). Optically readable information disc (U.S. Patent No. 4272574). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4272574

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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