Optical recording disk having a sealcoat layer
AssigneeImation Corp.
InventorsChau T. Ha, William M. Lamanna
Life of this patent
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Abstract
An optical recording disk having a sealcoat layer provided on at least one surface of the disk, wherein the sealcoat layer is a cured composition obtained from ingredients comprising a radiation-curable component; a nonionic perfluoro surfactant; and a radiation curable silicone-containing compound. Optionally the sealcoat layer is a cured composition of ingredients further comprising an anticorrosion agent and photoinitiator.
Claims23
An optical recording disk having a sealcoat layer provided on at least one surface of the disk, wherein the sealcoat layer is a cured composition obtained from ingredients comprising
- a) a radiation-curable component;
- b) a nonionic perfluoro surfactant;
- and
- c) a radiation-curable silicone-containing compound;
- and
- wherein the nonionic perfluoro surfactant has the formula:
- F.sub.2n+1 C.sub.n (CH.sub.2 CH.sub.2 O).sub.x R.sup.6
- wherein R.sup.6 is hydrogen or an alkyl group, n is in the range from 1 to 12, and x is in the range from 1 to 50.
An optical recording disk having a sealcoat layer provided on at least one surface of the disk, wherein the sealcoat layer is a cured composition obtained from ingredients comprising
- a) a radiation-curable component;
- b) a nonionic perfluoro surfactant;
- and
- c) a radiation-curable silicone-containing compound;
- and
- wherein the nonionic perfluoro surfactant has the formula:
- F.sub.2n-1 C.sub.n O(CH.sub.2 CH.sub.2 O).sub.x CH.sub.3
- wherein x is in the range from 10-20, and n is in the range from 3 to 18.
An optical recording disk having a sealcoat layer provided on at least one surface of the disk, wherein the sealcoat layer is a cured composition obtained from ingredients comprising
- a) a radiation-curable component;
- b) a nonionic perfluoro surfactant;
- and
- c) a radiation-curable silicone-containing compound;
- and
- wherein the nonionic perfluoro surfactant has the formula:
- ##STR19## wherein R.sup.A is hydrogen or a methyl group;
- X.sup.1 is a divalent linking group;
- R.sup.8 is hydrogen or a lower alkyl having from 1-12 carbons;
- and n is in the range from 4 to 16.
An optical recording disk having a sealcoat layer provided on at least one surface of the disk, wherein the sealcoat layer is a cured composition obtained from ingredients comprising
- a) a radiation-curable component;
- b) a nonionic perfluoro surfactant;
- and
- c) a radiation-curable silicone-containing compound;
- and
- wherein the radiation-curable silicone containing compound comprises a polyoxyalkylene segment.
An optical recording disk having a sealcoat layer provided on at least one surface of the disk, wherein the sealcoat layer is a cured composition obtained from ingredients comprising:
- a) 85 to 99 parts by weight of a radiation-curable component which comprises:
- 1. 6-hexanediol di(meth)acrylate, trimethyl propane triacrylate, bisphenol A epoxydi(meth)acrylate, and tripropylene glycol di(meth)acrylate,
- b) 0.5-4 parts by weight of a nonionic perfluoro surfactant having the formula ##STR24## wherein x is in the range from about 5 to 8;
- c) 0.5-5 parts by weight of a radiation-curable silicone-containing compound which is polydimethylsiloxane (meth)acrylate;
- d) 4-12 pans by weight of a photoinitiator which is 2,4,6-(trimethylbenzoyldiphenyl phosphine)oxide;
- and
- e) about 1-7 parts by weight of a anticorrosive agent which is tributyl amine.
Dependencies are inferred from the claim text.