US3926640A
Expired / Lapsed
US
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Photopolymerizable compositions comprising benzophenone reaction products
Assignee: Sun Chemical Corp
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Filing: 1973-10-11
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Granted: 1975-12-16
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Expires: 1993-10-11
Abstract
Abstract Compounds containing a benzophenone or a substituted benzophenone moiety are (a) autophotopolymerizable, (b) photopolymerizable in compositions with another photoinitiator, or (c) photoinitiating in compositions with another photopolymerizable material.
Inventors
- 👤 George Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:10
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; C; C08; C08F; C08F283/00; C08F283/01; C08G; C08G63/00; C08G63/91; C08G63/914; G03F7/027; G03F7/028; G03F7/031; G03F7/032; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/109; Y10S430/114; Y10S430/124
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A PHOTOPOLYMERIZABLE ELEMENT COMPRISING A SUPPORT AND A COATING THEREON CONSISTING ESSENTIALLY OF THE PRODUCT OF THE REACTION OF (1) A HYDROXY-CONTAINING POLYETHYLENICALLY UNSATURATED ESTER OR AN ISOCYANATE-MODIFIED HYDROXY-CONTAINING POLYETHYLENICALLY UNSATURATED ESTER WHICH IS THE PRODUCT OF THE REACTION OF (A) AN ETHYLENICALLY UNSTURATED ACID AND (B) A POLYHYDRIC ALCOHOL AND (2) A MONOCARBOXY-SUBSTITUTED BENZOPHONE HAVING THE FORMULA
Claim 2
Dependent Claim
58 words
A PHOTOPOLYMERIZABLE ELEMENT COMPRISING A SUPPORT AND A COATING THEREON CONSISTING ESSENTIALLY OF THE PRODUCT OF THE REACTION OF (1) A HYDROXY-CONTAINING POLYETHYLENICALLY UNSATURATED ESTER OR AN ISOCYANATE-MODIFIED HYDROXY-CONTAINING POLYETHYLENICALLY UNSATURATED ESTER WHICH IS THE PRODUCT OF THE REACTION OF (A) AN ETHYLENICALLY UNSTURATED ACID AND (B) A POLYHYDRIC ALCOHOL AND (2) A MONOCARBOXY-SUBSTITUTED BENZOPHONE HAVING THE FORMULA
Claim 3
Dependent Claim
60 words
A photopolymerizable composition comprising (A) a polyethylenically unsaturated ester and (B) a photoinitiator consisting of the product of the reaction of (1) a hydroxy-containing polyethylenically unsaturated ester or an isocyanate-modified hydroxy-containing polyethylenically unsaturated ester which is the product of the reaction of (a) an ethylenically unsaturated acid and (b) a polyhydric alcohol and (2) a monocarboxy-substituted benzophenone having the formula
Claim 4
Dependent Claim
60 words
A photopolymerizable composition comprising (A) a polyethylenically unsaturated ester and (B) a photoinitiator consisting of the product of the reaction of (1) a hydroxy-containing polyethylenically unsaturated ester or an isocyanate-modified hydroxy-containing polyethylenically unsaturated ester which is the product of the reaction of (a) an ethylenically unsaturated acid and (b) a polyhydric alcohol and (2) a monocarboxy-substituted benzophenone having the formula
Claim 5
Dependent Claim
23 words
The composition of claim 2 wherein the ester (A) is a di- or polyacrylate, a di- or polymethacrylate, or a di- or polyitaconate.
Claim 6
Dependent Claim
22 words
The composition of claim 2 wherein the ester (A) is an isocyanate-modified di- or polyacrylate, di- or polymethacrylate, or di- or polyitaconate.
Claim 7
Dependent Claim
27 words
The composition of claim 2 wherein the ratio of the amount of the ester (A) to the amount of the photoinitiator (B) is about 99:1 to 10:90.
Claim 8
Dependent Claim
27 words
The composition of claim 2 wherein the ratio of the amount of the ester (A) to the amount of the photoinitiator (B) is about 30:70 to 70:30.
References Cited (Backward Citations)
US3261686A
Cited
US3574617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |