UST887030I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST887030I4 UST887030I4 US887030DH UST887030I4 US T887030 I4 UST887030 I4 US T887030I4 US 887030D H US887030D H US 887030DH US T887030 I4 UST887030 I4 US T887030I4
- Authority
- US
- United States
- Prior art keywords
- aryl
- including substituted
- alkyl
- brightened
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
- G03C1/8155—Organic compounds therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/134—Brightener containing
Abstract
THIS INVENTION RELATES TO AN OPTICALLY BRIGHTENED MATERIAL COMPRISING AN ORGANIC MATERIAL TO BE BRIGHTENED AND AT LEAST ONE BRIGHTENING AGENT WHICH IS A N-ARYLPHTHALIMIDINE. ILLUSTRATIVE PHTHALIMIDINES EMPLOYED CAN BE REPRESENTED BY THE STRUCTURAL FORMULAS:
WHEREIN EACH OF R1 THROUGH R10 CAN BE: HYDROGEN; ALKYL, INCLUDING SUBSTITUTED ALKYL; ARYL, INCLUDING SUBSTITUTED ARYL; HALO; CYANO; AND THE LIKE; WITH THE LIMITATION THAT SAID SUBSTITUENTS BE FREE OF ANY FUNCTIONAL GROUPS WHICH EVOLVE GAS IN THE ZERWITINOFF TEST FOR ACTIVE HYDROGEN. IN A PREFERRED EMBODIMENT OF THE INVENTION, THE ALKLY AND ARYL GROUPS CAN HAVE FROM 1 TO ABOUT 12 CARBON ATOMS.
WHEREIN EACH OF R1 THROUGH R10 CAN BE: HYDROGEN; ALKYL, INCLUDING SUBSTITUTED ALKYL; ARYL, INCLUDING SUBSTITUTED ARYL; HALO; CYANO; AND THE LIKE; WITH THE LIMITATION THAT SAID SUBSTITUENTS BE FREE OF ANY FUNCTIONAL GROUPS WHICH EVOLVE GAS IN THE ZERWITINOFF TEST FOR ACTIVE HYDROGEN. IN A PREFERRED EMBODIMENT OF THE INVENTION, THE ALKLY AND ARYL GROUPS CAN HAVE FROM 1 TO ABOUT 12 CARBON ATOMS.
Description
DEFENSIVE ULlCATiON UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.6. 687. The abstracts 01 Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may he purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED JUNE 22, 1971 T887,030 OPTICAL BRIGHTENING COMPOSITIONS John Albert Ford, Jr., and John Frederick Stenberg, both Eastman Kodak (30., Kodak Park Division, Rochestel, N.Y. 14650 Filed Sept. 11, 1970, Ser. No. 71,409 Int. Cl. G03c 1/92 US. Cl. 96--82 No Drawing. 18 Pages Specification This invention relates to an optically brightened material comprising an organic material to be brightened and at least one brightening agent which is a N-arylphthalimidine. Illustrative phthali midines employed can be represented by the structural formulas:
Rs Rm l a R,- l
I 0 R10 I R, R, i R; i
Ra- -R1 I R. R5 R: Rm 0 1 and 0 R3 R10 I I" b/\ I f I l 0 Rs l R5 wherein each of R through R can be: hydrogen; alkyl, including substituted alkyl; aryl, including substituted aryl; halo; cyano; and the like; with the limitation that said substituents be free of any functional groups which evolve gas in the Zerwitinoif test for active hydrogen.
In a preferred embodiment of the invention, the alkyl and aryl groups can have from 1 to about 12 carbon atoms.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7140970A | 1970-09-11 | 1970-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST887030I4 true UST887030I4 (en) | 1971-06-22 |
Family
ID=22101126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US887030D Pending UST887030I4 (en) | 1970-09-11 | 1970-09-11 | Defensive publication |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST887030I4 (en) |
-
1970
- 1970-09-11 US US887030D patent/UST887030I4/en active Pending
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