Patent US4267961A successfully refreshed from Google Patents.
US4267961A
Expired / Lapsed
US
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Photocrosslinkable, high-temperature-resistant polymers and their use in color imaging devices
Assignee: Eastman Kodak Co
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Filing: 1979-09-14
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Granted: 1981-05-19
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Expires: 1999-09-14
Abstract
Abstract Photocross-linkable, organic solvent-soluble polymers having a Tg greater than 200° C. are disclosed. The polymers contain sufficient radiation-sensitive cross-linkable units to render the polymers insoluble in organic solvents on exposure to radiation to which the cross-linkable units are sensitive. Also disclosed are supports, particularly supports having a radiation-sensitive surface, having thereon a layer of the described photo-corss-linkable polymers. The polymers are capable of receiving heat-transferrable dyes and are useful in forming color filter arrays for solid-state imaging devices. A particularly convenient method of forming solid-state color imaging devices having a layer containing an array of color filters is also disclosed.
Inventors
- 👤 Thomas W. Martin
- 👤 Mohammad A. Sandhu
- 👤 Dennis J. Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:53
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553; C08G63/68; C08G63/682; C08G65/00; C08G69/00; C08G69/02; C08G75/00; C08G75/24; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
In a color filter array comprising a layer of a transparent polymer containing a planar array of filter elements, wherein each of said filter elements contains a heat-transferable dye, the improvement wherein said polymer is a photocrosslinkable organic solvent-soluble condensation polymer having at least two recurring units and a Tg greater than 200° C., wherein said polymer contains sufficient ethylenically unsaturated radiation-sensitive crosslinkable units to render said polymer insoluble in organic solvents on exposure to radiation to which said crosslinkable units are sensitive.
Claim 2
Dependent Claim
83 words
In a color filter array comprising a layer of a transparent polymer containing a planar array of filter elements, wherein each of said filter elements contains a heat-transferable dye, the improvement wherein said polymer is a photocrosslinkable organic solvent-soluble condensation polymer having at least two recurring units and a Tg greater than 200° C., wherein said polymer contains sufficient ethylenically unsaturated radiation-sensitive crosslinkable units to render said polymer insoluble in organic solvents on exposure to radiation to which said crosslinkable units are sensitive.
Claim 3
Dependent Claim
91 words
In a color imaging device comprising: (a) a radiation-sensitive surface and, superimposed thereon, (b) a layer of a transparent polymer containing a planar array of filter elements, wherein each of said filter elements contains a heat-transferable dye, the improvement wherein said polymer is a photocrosslinkable, organic solvent-soluble condensation polymer having at least two recurring units and a Tg greater than 200° C., wherein said polymer contains sufficient ethylenically unsaturated radiation-sensitive crosslinkable units to render said polymer insoluble in organic solvents on exposure to radiation to which said crosslinkable units are sensitive.
Claim 4
Dependent Claim
91 words
In a color imaging device comprising: (a) a radiation-sensitive surface and, superimposed thereon, (b) a layer of a transparent polymer containing a planar array of filter elements, wherein each of said filter elements contains a heat-transferable dye, the improvement wherein said polymer is a photocrosslinkable, organic solvent-soluble condensation polymer having at least two recurring units and a Tg greater than 200° C., wherein said polymer contains sufficient ethylenically unsaturated radiation-sensitive crosslinkable units to render said polymer insoluble in organic solvents on exposure to radiation to which said crosslinkable units are sensitive.
Claim 5
Dependent Claim
23 words
A color imaging device according to claim 2 wherein said radiation-sensitive surface comprises an array of charge-handling semiconductive photosensors and bonding pad areas.
Claim 6
Dependent Claim
18 words
A color imaging device according to claim 3 wherein said filter elements are in microregistration with said photosensors.
Claim 7
Dependent Claim
26 words
A color imaging device according to claim 4 wherein the entire radiation-sensitive surface, with the exception of said bonding pad areas, is coated with said polymer.
Claim 8
Dependent Claim
124 words
A color imaging device according to claim 4 wherein said polymer comprises from 5-50 mole percent of radiation-sensitive, crosslinkable recurring units selected from the group consisting of: ##STR16## wherein: x=0 or 1, y=0 or 1, z=0 or 1, q=0 or 1 and L is a linking group; with the proviso that, when both x and y are 0, z is 1 and L is a light-sensitive unit selected from the group consisting of cyclopropene, arylmethyleneindene, furanone, cyclohexene and cyclohexaciene; Q, when taken together with the adjacent carbonyl group, represents the atoms necessary to complete a terminal ester group; and Q' and Q" are independently selected from the group consisting of hydrogen, alkyl having from 1-6 carbon atoms and aryl having from 6-12 carbon atoms.
Claim 9
Dependent Claim
48 words
A color imaging device according to claim 4 wherein said polymer comprises from 5-65 mole percent of recurring units derived from at least one monomer selected from the group consisting of phenylindan, hydrogenated phenylindan, 1,1'-spirobiindan, 2,2'-spirobichroman, 7,7-dimethyl-7H-dibenzo[c,h]xanthene, 9,9-dimethylxanthene-3,6-bis-(oxyacetate), xanthylium salt, 4,4'-(3-phenyl-1-indanylidene), 4,4'-(hexahydro-4,7-methanoindan-5-ylidene), bisphenol, sulfonyldibenzoate, polycyclic norbornane and 1,2,3,4-tetrahydronaphthalene.
Claim 10
Dependent Claim
91 words
A color imaging device according to claim 4 wherein said polymer is a polyester having a Tg greater than 200° C. and represented by the formula: ##STR17## wherein: the value of n is from 10-100 and of m is from 0-100; each of R 1 --R 16 is independently selected from the group consisting of hydrogen, halogen, cyano, alkyl and alkoxy; Y represents sulfonyl, oxy, alkylene of 1-4 carbon atoms, alkylidene or cycloalkylidene; and Ar is selected from the group consisting of m-phenylene, p-phenylene, 4,4'-sulfonyldibenzoate, 1,2,3,4-tetrahydro-2,6-naphthalenedicarboxylate, 4,4'-isopropylidenedibenzoate, 1,4-diphenylenedicarboxylate, 2,6-naphthalenedicarboxylate and 1,1,3-trimethyl-3-phenylindan-5,5'-dicarboxylate.
Claim 11
Dependent Claim
22 words
A color imaging device according to claim 8 wherein Ar is m-phenylene, m is 100 and R 1 -R 8 are hydrogen.
Claim 12
Dependent Claim
12 words
A color imaging device according to claim 9 which is poly[4,4'-hexahydro-4,7-methanoindan-5-ylidene)diphenyleneterephthalate-co-1,4-phenylenediacrylate 70:30].
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-18 | 1984-11-17 | 1985-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-18 | 1988-11-17 | 1989-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-18 | 1992-11-17 | 1993-05-19 | $7700.00 | Window Closed / Lapsed |