US4230790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable compositions useful in dry film photoresist
Assignee: EIDP Inc
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Filing: 1979-01-31
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Granted: 1980-10-28
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Expires: 1999-01-31
Abstract
Abstract Ethylenically unsaturated esters of difunctional acids and polymethylene glycols terminated with acrylate and methacrylate groups are useful as monomers in photopolymerizable compositions.
Inventors
- 👤 Martin J. Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:31
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
In a photopolymerizable composition consisting essentially of: (a) a photoinitiator; (b) a macromolecular linear organic film-forming polymeric binder; and (c) a photopolymerizable monomer, the improvement comprising in combination: (i) 0.001 to 20 parts by weight, based on the weight of monomer, of non-peroxide photoinitiator, which is activatable by actinic radiation and thermally inactive at and below 85° C.; (ii) 10 to 95 parts by weight, based on the total weight of the photopolymerizable composition, of binder; and (iii) 5 to 90 parts by weight, based on the total weight of the photopolymerizable composition of an ethylenically unsaturated addition-polymerizable compound having a molecular weight of at least 150 and a boiling point of above 100° C. and having the formula: ##STR3## where R=H, CH 3 ; ##STR4## or (CH 2 ) n-2 ; and m and n are independently from 2 to 10.
Claim 2
Dependent Claim
142 words
In a photopolymerizable composition consisting essentially of: (a) a photoinitiator; (b) a macromolecular linear organic film-forming polymeric binder; and (c) a photopolymerizable monomer, the improvement comprising in combination: (i) 0.001 to 20 parts by weight, based on the weight of monomer, of non-peroxide photoinitiator, which is activatable by actinic radiation and thermally inactive at and below 85° C.; (ii) 10 to 95 parts by weight, based on the total weight of the photopolymerizable composition, of binder; and (iii) 5 to 90 parts by weight, based on the total weight of the photopolymerizable composition of an ethylenically unsaturated addition-polymerizable compound having a molecular weight of at least 150 and a boiling point of above 100° C. and having the formula: ##STR3## where R=H, CH 3 ; ##STR4## or (CH 2 ) n-2 ; and m and n are independently from 2 to 10.
Claim 3
Dependent Claim
43 words
A composition according to claim 1 wherein said ethylenically unsaturated addition polymerizable compound is selected from bis(2-methacryloxyethyl) adipate, bis(3-methacryloxypropyl) adipate, bis(4-methacryloxybutyl) adipate, bis(6-methacryloxyhexyl) adipate, bis(10-methacryloxydecyl) adipate, bis(6-methacryloxyhexyl) malonate, bis(6-methacryloxyhexyl) phthalate, bis(2-methacryloxyethyl) phthalate, bis(2-methacryloxyethyl) isophthalate, bis(2-methacryloxyethyl) terephthalate, bis(10-methacryloxydecyl) sebacate, bis(6-acryloxyhexyl) adipate, and bis(2-acryloxyethyl) adipate.
Claim 4
Dependent Claim
14 words
A composition according to claim 1 wherein said polymeric binder is an acrylic polymer.
Claim 5
Dependent Claim
13 words
A composition according to claim 3 wherein said acrylic polymer is polymethyl methacrylate.
Claim 6
Dependent Claim
31 words
A composition according to claim 1 wherein any of the photoinitiator compound, the polymeric binder, and the ethylenically unsaturated addition polymerizable compound is present as a mixture of several such materials.
Claim 7
Dependent Claim
25 words
A photoresist film element comprising a layer of the photopolymerizable composition of claim 1 adhered to a polymeric film support with low to moderate adherence.
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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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |