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.
Patent No.:
Date of Patent:
Jun. 02, 1998
Filed:
Nov. 01, 1996
Pradeep K Dhal, Acton, MA (US);
Michael G Horner, West Roxbury, MA (US);
Richard T Ingwall, Newton, MA (US);
Eric S Kolb, Ipswich, MA (US);
Parag G Mehta, Peabody, MA (US);
Richard A Minns, Arlington, MA (US);
Howard G Schild, Brighton, MA (US);
David A Waldman, Acton, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
A holographic recording medium comprises an acid generator capable of producing an acid upon exposure to actinic radiation; a binder; and at least one monomer or oligomer capable of undergoing cationic polymerization initiated by the acid produced from the acid generator. This recording medium is not subject to the disadvantages (for example, oxygen sensitivity) associated with radical-polymerized prior art holographic recording media.