Photopolymerizable compositions used in holograms

Details Photopolymerizable compositions used in holograms Photopolymerizable compositions used in holograms

1984-08-20

1986-05-13

Kittle, John E.

Radiation imagery chemistry: process, composition, or product th

Holographic process, composition, or product

430 2, 430281, 430919, 430926, 430327, 430331, 430945, 522 4, 522 25, 522 28, 522120, 522182, 427 12, 427531, G03C 170, G03C 908, G03G 104

Patent

active

045886644

ABSTRACT:
Novel photopolymerizable compositions are provided which comprise a dye sensitizer, a branched polyethylenimine as a polymerization initiator and a free radical polymerizable ethylenic unsaturated monomer.
In the preferred embodiments, the branched polyethylenimine is used in combination with lithium acrylate. This combination provides dry coatings which may be stored for extended periods prior to being activated for imaging, and which produce volume holograms of very high resolution and diffraction efficiency.

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