US4619890A
Expired / Lapsed
US
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Optical recording element having a polymerized crosslinked homopolymer smoothing layer
Assignee: Eastman Kodak Co
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Filing: 1985-08-19
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Granted: 1986-10-28
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Expires: 2005-08-19
Abstract
Abstract An optical recording element comprising a support having coated thereon a smoothing layer that is a crosslinked homopolymer in which the polymerized, crosslinked recurring unit is derived from a single monomer having the structure <IMAGE> Q represents -CH2)nO or -CH2CH2O)n; P represents a benzene or cyclohexane nucleus; R represents <IMAGE> or -O-; R1 represents hydrogen or methyl; n is 2 to 10; and m is 2 to 4.
Inventors
- 👤 Michel F. Molaire
- 👤 Mark S. Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:22
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/16; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/252; G11B7/242; G11B7/244; G11B7/246; G11B7/249; G11B7/253; G11B7/2533; G11B7/2535; G11B7/258; G11B7/2595; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S430/00; Y10S430/146; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
85 words
An optical recording element comprising a heat-deformable optical recording layer and a support having coated thereon a smoothing layer that is a crosslinked homopolymer in which the polymerized, cross-linked recurring unit is derived from a single monomer having the structure ##STR14## Q represents --CH 2 ) n O or --CH 2 CH 2 O) n ; P represents a benzene or cyclohexane nucleus; R represents ##STR15## or --O--; R 1 represents hydrogen or methyl; n is 2 to 10; and m is 2 to 4.
Claim 2
Dependent Claim
85 words
An optical recording element comprising a heat-deformable optical recording layer and a support having coated thereon a smoothing layer that is a crosslinked homopolymer in which the polymerized, cross-linked recurring unit is derived from a single monomer having the structure ##STR14## Q represents --CH 2 ) n O or --CH 2 CH 2 O) n ; P represents a benzene or cyclohexane nucleus; R represents ##STR15## or --O--; R 1 represents hydrogen or methyl; n is 2 to 10; and m is 2 to 4.
Claim 3
Dependent Claim
92 words
An optical recording element comprising in the following order; a support; a smoothing layer; a metal reflective layer; and a heat-deformable optical recording layer wherein the smoothing layer is a crosslinked homopolymer in which the polymerized recurring unit is derived from a single monomer having the structure ##STR16## Q represents --CH 2 ) n O or --CH 2 CH 2 O) n ; P represents a benzene or cyclohexane nucleus; R represents ##STR17## or --O--; R 1 represents hydrogen or methyl; n is 2 to 10; and m is 2 to 4.
Claim 4
Dependent Claim
92 words
An optical recording element comprising in the following order; a support; a smoothing layer; a metal reflective layer; and a heat-deformable optical recording layer wherein the smoothing layer is a crosslinked homopolymer in which the polymerized recurring unit is derived from a single monomer having the structure ##STR16## Q represents --CH 2 ) n O or --CH 2 CH 2 O) n ; P represents a benzene or cyclohexane nucleus; R represents ##STR17## or --O--; R 1 represents hydrogen or methyl; n is 2 to 10; and m is 2 to 4.
Claim 5
Dependent Claim
19 words
The optical recording element of claim 1 or 2 wherein n is 2 to 6 and m is 3.
Claim 6
Dependent Claim
29 words
The element of claim 1 or 2 wherein the polymerized recurring unit in the crosslinked homopolymer is derived from a single monomer selected from the group consisting of ##STR18##
Claim 7
Dependent Claim
32 words
The element of claim 1 or 2 wherein the heat-deformable optical recording layer comprises an amorphous composition having an absorption factor of at least 20 and comprises a binder and a dye.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |