US3926636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurable compositions
Assignee: BASF SE
•
Filing: 1973-08-28
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Granted: 1975-12-16
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Expires: 1993-08-28
Abstract
Abstract A light-curable composition consisting of: (A) a substance containing at least two aromatic or heteroaromatic onitrocarbinol ester groups of the general formula: IN WHICH Y is an aromatic or heteroaromatic ring system and X is hydrogen or alkyl, aryl alkaryl or aralkyl; and (B) a compound having et laest two aziridine groups or isocyanate groups in the molecule. The photocurable composition of the invention is particularly suitable for the production of coatings and printing plates.
Inventors
- 👤 Helmut Barzynski
- 👤 Matthias Marx
- 👤 Gerhard Storck
- 👤 Dietrich Saenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6283; C08G18/42; C08G18/46; C08G18/4615; C08G18/463; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/91; C08G63/914; C08K; C08K5/00; C08K5/16; C08K5/29; C08K5/34; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/12; Y10S430/121
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
30 words
A COMPOSITION CURABLE UNDER THE ACTION OF LIGHT WHICH CONSISTS OF: A. AT LEAST ONE SUBSTANCE CONTAINING AT LEAST TWO AROMATIC OR HETEROARMATIC O-NITROCARBINOL ESTER GROUPS OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
30 words
A COMPOSITION CURABLE UNDER THE ACTION OF LIGHT WHICH CONSISTS OF: A. AT LEAST ONE SUBSTANCE CONTAINING AT LEAST TWO AROMATIC OR HETEROARMATIC O-NITROCARBINOL ESTER GROUPS OF THE GENERAL FORMULA:
Claim 3
Dependent Claim
29 words
A composition as claimed in claim 1 which also contains a substance from the group consisting of conventional natural and synthetic binders, fillers, reinforcement materials, pigments, sensitizers and plasticizers.
Claim 4
Dependent Claim
24 words
A photocurable composition as claimed in claim 1 wherein component (A) contains at least two o-nitrobenzyl alcohol ester groups or 2-nitro-6-chlorobenzyl alcohol ester groups.
Claim 5
Dependent Claim
27 words
A photocurable composition as claimed in claim 1 wherein component (A) is a polymer containing polymerized units of an o-nitrocarbinol ester of acrylic acid or methacrylic acid.
Claim 6
Dependent Claim
27 words
A photocurable composition as claimed in claim 1 wherein component (A) is a polymer containing polymerized units of o-nitrobenzyl acrylate, o-nitrobenzyl methacrylate, 2-nitro-6-chlorobenzyl acrylate or 2-nitro-6-chlorobenzyl methacrylate.
Claim 7
Dependent Claim
34 words
A photocurable composition as claimed in claim 1 wherein component (A) is combined with component (B) in such a ratio that the aziridine groups and nitrocarbinol ester groups are present in about equimolar amounts.
Claim 8
Dependent Claim
34 words
A photocurable composition as claimed in claim 1 wherein component (A) is combined with component (B) in such a ratio that the isocyanate groups and nitrocarbinol ester groups are present in about equimolar amounts.
Claim 9
Dependent Claim
15 words
A photocurable composition as claimed in claim 1 which additionally contains a conventional organic solvent.
Claim 10
Dependent Claim
36 words
A PROCES FOR THE PRODUCTION OF MOLDINGS, IMPREGANATIONS, BONDS, COATINGS, PRINTING INKS AND PRINTING PLATES WHICH COMPRISES EXPOSING TO LIGHT OF A WAVELENGTH OF FROM 200 TO 500 NM A COMPOSITION AS CLAIMED IN CLAIM 1.
Claim 11
Dependent Claim
37 words
A process for the production of moldings, impregnations, bonds, coatings, printing inks and printing plates which comprises exposing to light of a wavelength of from 200 to 500 nm a photocurable composition as claimed in claim 2.
Claim 12
Dependent Claim
20 words
A MOLDING, IOPREGNATION, BOND, COATING, PRINTING INK OR PRINTING PLATE PREPARED USING A PHOTOCURABLE COMPOSITION AS CLAIMED IN CLAIM 1.
Claim 13
Dependent Claim
20 words
A molding, impregnation, bond, coating, printing ink or printing plate prepared using a photocurable composition as claimed in claim 2.
References Cited (Backward Citations)
US3615629A
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 |