Maro Publications

Holographic Memory

Patents with Abstracts

*6/25/2012

Maro Topics

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Patents with Abstracts

8,192,898 
Composition for fluorine-containing volume holographic data recording material and fluorine-containing volume holographic data recording media made of same
 
Satou, Hanazawa and Aoki of Daikin Industries, Japan, developed a fluorine-containing volume holographic data recording material making it unnecessary to provide a step of eliminating a specific solvent even in the case of a thick film, and having high hologram performance and good dynamic range.  It consists of a base polymer (a), a liquid monomer (b) and a photo-initiator (c), wherein the base polymer (a) is an amorphous polymer comprising a fluorine-containing monomer as a structural unit and having a fluorine content of 26 to 80% by mass, the liquid monomer (b) comprises at least one liquid monomer (b1) initiating polymerization by means of activated species generated from the photo-initiator (c), the photo-initiator (c) is a compound causing the liquid monomer (b1) to initiate polymerization by exposure to light having excellent coherence and, and a refractive index of the liquid monomer (b) is higher than an average refractive index of a mixture of the base polymer (a) and the photo-initiator (c). (RDC 6/25/2012)

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Interested!!
Bookmark this page to follow future developments!.
(RDC 6/5/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921
E-Mail: cornelrd@bee.net  

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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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** Date of latest addition; date of first entry is 6/25/2012.