Patent US3206566A successfully refreshed from Google Patents.
Patent EP0287750A2 successfully refreshed from Google Patents.
EP0287750A2
Expired / Lapsed
EP
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Photoactive curcumin derivatives
Assignee: Shipley Co Inc
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Filing: 1988-01-08
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Granted: —
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Expires: 2008-01-08
Abstract
Abstract The subject invention involves reduction of light refraction into a photoresist coating over a reflective substrate by the use of a photoactive compound in a photoresist formulation that is the reaction product of a diazooxide and curcumin.
Inventors
- 👤 Robert L. Martin
- 👤 M. Martha Rajaratnam
- 👤 Pamela Turci
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 18:34
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022; G03F7/09; G03F7/091
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
62 words
A photoresist composition responsive to activating radiation at a wavelength within the range of from 200 to 460 nm comprising a polymer binder and an effective amount of a photoactive compound that includes the esterification product of a diazooxide and curcumin dye, said photoactive compound being present in the composition in an amount up to the solubility limit of the photoresist composition.
Claim 2
Dependent Claim
62 words
A photoresist composition responsive to activating radiation at a wavelength within the range of from 200 to 460 nm comprising a polymer binder and an effective amount of a photoactive compound that includes the esterification product of a diazooxide and curcumin dye, said photoactive compound being present in the composition in an amount up to the solubility limit of the photoresist composition.
Claim 3
Dependent Claim
37 words
The photoresist of claim 1 where the diazooxide corresponds to the following general formula: where X and Xʹ are N₂ or O and are different from each other, Y is hydrogen or halogen and Yʹ is halogen.
Claim 4
Dependent Claim
50 words
The photoresist of claim 2 where the photoactive compound corresponds to the following general formula: where X and Xʹ are N₂ or O and are different from each other, Y is hydrogen or halogen and Yʹ is 1,7 - bis - (4 - hydroxy -3- methoxyphenyl) -1,6- heptadiene -3,5- dione.
Claim 5
Dependent Claim
51 words
The photoresist of claim 2 where the binder is a member selected from the group of novolak resins; polyglutarimides; polyvinyl alcohol; a terpolymer that is the reaction product of an alkyl acrylate, a styrene and an acid; and the polyamic condensation products of an aromatic dianhydride and an aromatic di-primary amine.
Claim 6
Dependent Claim
27 words
The photoresist of claim 4 where the concentration of the photoactive compound varies between 1.0 and 35.0 weight percent of the total solids of the photoresist composition.
Claim 7
Dependent Claim
35 words
The photoresist of claim 5 where the photoactive compound is a mixture of a diazo oxide photoactive compound free of curcumin in its structure and the esterification product of a diazo oxide and curcumin dye.
Claim 8
Dependent Claim
30 words
The photoresist of claim 6 where the diazo oxide photoactive compound free of curcumin in its structure consists of up to 90 percent of the total of the photoactive compound.
Claim 9
Dependent Claim
24 words
The photoresist of claim 6 where the photoactive compound consists of from 1.0 to 35.0 percent of the total solids of the photoresist formulation.
Claim 10
Dependent Claim
20 words
The photoresist of claim 5 where the photoactive compound is the esterification product of a diazo oxide and curcumin dye.
Claim 11
Dependent Claim
12 words
The photoresist of claim 4 where the binder is a novolak resin.
Claim 12
Dependent Claim
12 words
The photoresist of claim 10 in the form of a dry film.
Claim 13
Dependent Claim
13 words
The photoresist of claim 10 where the photoresist is a liquid coating composition.
Claim 14
Dependent Claim
11 words
The photoresist of claim 4 where the binder is a polyglutarimide.
Claim 15
Dependent Claim
12 words
The photoresist of claim 13 in the form of a dry film.
Claim 16
Dependent Claim
16 words
The photoresist of claim 14 where the dry film is one of several layers of photoresist.
Claim 17
Dependent Claim
18 words
The photoresist of claim 14 where the dry film is a planarizing layer in a multilayer film combination.
Claim 18
Dependent Claim
12 words
The photoresist of claim 4 where the binder is a polyvinyl phenol.
Claim 19
Dependent Claim
12 words
The photoresist of claim 17 in the form of a dry film.
Claim 20
Dependent Claim
13 words
The photoresist of claim 17 where the photoresist is a liquid coating composition.
Claim 21
Dependent Claim
40 words
A process for reducing reflection of radiation from a substrate into a photoresist coated over said substrate, said process comprising use of a photoactive compound in the photoresist composition that includes the esterification product of a diazooxide and curcumin dye.
Claim 22
Dependent Claim
40 words
A process for reducing reflection of radiation from a substrate into a photoresist coated over said substrate, said process comprising use of a photoactive compound in the photoresist composition that includes the esterification product of a diazooxide and curcumin dye.
Claim 23
Dependent Claim
31 words
The photoresist of claim 20 where the diazo oxide photoactive compound free of curcumin dye in its structure consists of up to 90 percent of the total of the photoactive compound.
Claim 24
Dependent Claim
25 words
The photoresist of claim 21 where the total of the diazo oxide photoactive compound consists of from 1.0 to 35.0 percent of the photoresist composition.
Claim 25
Dependent Claim
20 words
The photoresist of claim 20 where the photoactive compound is the esterification product of a diazo oxide and curcumin dye.
Claim 26
Dependent Claim
51 words
The photoresist of claim 20 where the binder is a member selected from the group of novolak resins; polyglutarimides; polyvinyl alcohol; a terpolymer that is the reaction product of an alkyl acrylate, a styrene and an acid; and the polyamic condensation products of an aromatic dianhydride and an aromatic di-primary amine.
Claim 27
Dependent Claim
29 words
The photoresist process of claim 24 where the total concentration of the photoactive compounds varies between 1.0 and 35.0 weight percent of the total solids of the photoresist composition.
Claim 28
Dependent Claim
37 words
The process of claim 20 where the diazooxide corresponds to the following general formula: where X and Xʹ are N₂ or O and are different from each other, Y is hydrogen or halogen and Yʹ is halogen.
Claim 29
Dependent Claim
50 words
The process of claim 20 where the photoactive compound corresponds to the following general formula: where X and Xʹ are N₂ or O and are different from each other, Y is hydrogen or halogen and Yʹ is 1,7 - bis - (4 - hydroxy -3- methoxyphenyl) -1,6- heptadiene -3,5- dione.
Claim 30
Dependent Claim
44 words
A photoactive compound that is the esterification product of curcumin and diazooxide where the diazooxide corresponds to the following general formula: where X and Xʹ are N₂ or O and are different from each other, Y is hydrogen or halogen and Yʹ is halogen.
Claim 31
Dependent Claim
44 words
A photoactive compound that is the esterification product of curcumin and diazooxide where the diazooxide corresponds to the following general formula: where X and Xʹ are N₂ or O and are different from each other, Y is hydrogen or halogen and Yʹ is halogen.
Claim 32
Dependent Claim
26 words
The photoactive compound of claim 28 where the esterification product is a member selected from the group of monoesters, diesters and mixtures of monoesters and diesters.
Claim 33
Dependent Claim
18 words
The photoactive compound of 29 where the esterification product is a mixture of a monoester and a diester.
Claim 34
Dependent Claim
18 words
The photoactive compound of 29 where the esterification product is a mixture of a monoester and a diester.
References Cited (Backward Citations)
No citation records indexed.
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