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US 2004/0002008 A1Published application
Recording material formulations for holographic media
AssigneeImation Corp.
InventorsRamon F. Hegel, Stanley C. Busman
Life of this patent
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Abstract
Holographic data storage media having a sandwiched construction are described in which a holographic recording material is sandwiched between two substrates. A variety of different formulations of the holographic recording material are also described. By improving the formulation of the photosensitive material, holographic media can be improved.
Claims21
A recording material for a holographic medium comprising:
- a matrix polymer resulting from the mixture of two or more oligomeric components, wherein at least one of the oligomeric components includes polybutadiene polyol;
- a photoinitiator mixed in a first oligomeric component prior to mixing the oligomeric components;
- and
- a write monomer mixed in a second oligomeric component prior to mixing the oligomeric components.
1 more element
A recording material for a holographic medium comprising:
- a matrix polymer resulting from the mixture of two or more oligomeric components;
- a photoinitiator mixed in a first oligomeric component prior to mixing the oligomeric components;
- and
- a write monomer mixed in a second oligomeric component prior to mixing the oligomeric components, wherein the write monomer includes a monomer selected from the group consisting of:
- tribromo phenyl acrylate (TBPA), tetrabromo cresol acrylate (TTBCA), pentabromo phenyl acrylate (PBPA), quinoline acrylate (QNA), quinaldine acrylate (QDA), and phenoxybenzyl acrylate (PBNA).
2 more elements
A recording material for a holographic medium comprising:
- a matrix polymer resulting from the mixture of two or more oligomeric components;
- a photoinitiator mixed in a first oligomeric component prior to mixing the oligomeric components;
- and
- a write monomer mixed in a second oligomeric component prior to mixing the oligomeric components;
- and
- a photoinitiator additive mixed in at least one of the oligomeric components prior to mixing the oligomeric components, wherein the photoinitiator additive is selected from the group consisting of:
- t-butyl hydroperoxide, tris-trichloromethyl-s-triazine, diphenyl iodonium hexafluorophosphate, t-butyl peroxybenzoate (tBPB), di-t-butyl peroxide, cumene hydroperoxide, dimethyl t-butyl peroxide, t-amyl perbenzoate, t-butyl peroxy acetate, t-butyl peroxy ethylhexyl carbonate (TBEC), and t-amyl peroxy ethylhexyl carbonate (TAEC).
4 more elements
A recording material for a holographic medium comprising:
- a matrix polymer resulting from the mixture of two or more oligomeric components;
- a photoinitiator mixed in a first oligomeric component prior to mixing the oligomeric components;
- a write monomer mixed in a second oligomeric component prior to mixing the oligomeric components;
- and
- an oxidant mixed in at least one of the oligomeric components prior to mixing the oligomeric components, wherein the oxidant comprises t-butyl peroxybenzoate.
2 more elements
A holographic data storage medium comprising:
- a first substrate;
- a second substrate;
- and
- a holographic recording material between the first and second substrates comprising:
- a matrix polymer resulting from the mixture of two or more oligomeric components, wherein at least one of the oligomeric components includes polybutadiene polyol
- a photointiator mixed in a first oligomeric component prior to mixing the oligomeric components, and
- a write monomer mixed in a second oligomeric component prior to mixing the oligomeric components.
4 more elements
Dependencies are inferred from the claim text.