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US 11,126,082 B2Granted
Photopolymer composition
AssigneeLG Chem, Ltd.
InventorsSeokhoon Jang, Sooyoung Kwak, Heon Kim, Se Hyun Kwon, Yeongrae Chang
Life of this patent
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Abstract
The present disclosure is to provide a photopolymer composition including a polymer matrix or a precursor thereof having a specific chemical structure; a photoreactive monomer; and a photoinitiator. The present disclosure is also to provide a hologram recording medium, an optical element, and a holographic recording method using the photopolymer composition.
Claims18
A photopolymer composition, comprising a polymer matrix or a precursor thereof including a (meth)acrylate-based (co)polymer having a silane-based functional group in a branched chain and a silane cross-linking agent;
- a photoreactive monomer;
- and
- a photoinitiator,
- wherein the silane cross-linking agent contains 95 mol % or more of siloxane functional groups represented by the following Chemical Formula 1 based on total siloxane functional groups therein according to a solid state 29Si NMR analysis of the silane cross-linking agent,
- wherein the silane cross-linking agent comprises a linear polyether main chain having a weight average molecular weight of 100 to 2000 and a silane-based functional group bound to the main chain as a terminal group or a branched chain:
- in Chemical Formula 1, R1 to R3 are each an organic functional group.
3 more elements
Dependencies are inferred from the claim text.