US1437829A - Composition for making antistatic photographic films - Google Patents
Composition for making antistatic photographic films Download PDFInfo
- Publication number
- US1437829A US1437829A US543531A US54353122A US1437829A US 1437829 A US1437829 A US 1437829A US 543531 A US543531 A US 543531A US 54353122 A US54353122 A US 54353122A US 1437829 A US1437829 A US 1437829A
- Authority
- US
- United States
- Prior art keywords
- composition
- photographic films
- cellulose
- making antistatic
- making
- 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.)
- Expired - Lifetime
Links
- 229920002301 cellulose acetate Polymers 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 229920003086 cellulose ether Polymers 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000000020 Nitrocellulose Substances 0.000 description 3
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 3
- 229920001220 nitrocellulos Polymers 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical group CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- G03C1/85—Photosensitive materials characterised by the base or auxiliary layers characterised by antistatic additives or coatings
- G03C1/89—Macromolecular substances therefor
Definitions
- This invention relates to a composition of t matter useful in the film making art.
- @ne object ofthe invention is to provide a suitable composition which may be incorporated into the lm, preferably by forming a ⁇ layer which will diminish or entii'ely prevent the formation of static.
- Other objects will hereinafter appear.
- lm having unexpectedlys'trong anti-static properties may be prepared by incorporating in its support a layer containing an ether of cellulose and cellulose acetate.
- rIhis invention is a specine application of the 'broader discovery disso closed in my co-pending application namelyd February 2.1, 1921, Serial No. 446,782.
- F ig. 2 is a sectional view on an exaggerated scale of a modification of the invention.
- properly diluted iiowable composition which sets quickly when coated upon the nlm support, the volatile ingredients passing away and leaving a transparent, hard anti-static backing resistant to photographic solutions, said coating or backing comprising essentially cellulose ether and cellulose acetate.
- a composition for 'forming a layer on an object containing a cellulose ester said composition comprising a cellulose ether,
- composition for forming a layer on a photographic film support containing ce1- lulose nitrate comprising cellulose ether, cellulose acetate, :amount of a nitrocellulose solvent incapable by itby itself of fully dissolving said ether.
- composition for forming a layer on a photographic film support containing cellulose nitrate comprising ethyl cellulose, cellulose acetate, chloroform, alcohol and acetone.
Description
A. F. SULZER.
COMPOSITION vFOR MAKING ANTISTATIC PHOTOGRAPHIC FILMS.
APPLlcATIoN FILED MAR. 13, 1922.
ATTORN EY i in being taken by the user.
Patented Dee. A5, w22.,
entre ALBERT F. SULZER, F RCHESTER, NEW YORK, ASSIGNR T0k ESTMN KODAK COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION 0F NEW YORK.
COMPOSITIGN FOR MAKING ANTISTATIC PHGTOGERPHIC FILMS.
Original aapplication led February 21, 1921, Serial No. 446,7't33. Divided and this application tiled March '13, 1922. Serial No. 543,531.
.f o a/J w/L-om t may concern:
Be it known that I, ALBERT F. Srnlznn, a citizen of the United States of America, re,- siding at Rochester, in the county of Monroe Vand State of New York, have invented certain new and useful Improvements in Composition for Making Antistatic Photographic Films, of which the following is a full, clear,
and exact specification. l
This invention relates to a composition of t matter useful in the film making art. @ne object ofthe invention is to provide a suitable composition which may be incorporated into the lm, preferably by forming a` layer which will diminish or entii'ely prevent the formation of static. Other objects will hereinafter appear.
Due to the manipulation of sensitive photographic ilm, some times in manutacture, but more frequently in use, characteristic lines or patches may appear on development, because of electrical discharges which are created during the handling. 'Ihe ogor fogV lines which are thus formed on the film are particularly noticeable in the case of the standard species of motion picture lm, which includes a nitrocellulose support or base. It is very. important :trom the commercial standpoint to prevent this defect in the motion p1cture art, particularly when making negative film strips. lhe trouble is commonly referred to as static and will be so designated herein.
While certain camera modifications for preventing this electrical trouble'have been proposed, it is very desirable to prevent static by la proper constitution of the iilm, so that the latter may be employed in any commercial camera without any precautions 0f course, the nlm should likewise be capable of .subsequent duid treatment and drying on the customary racks or apparatus without injury.
I have discovered that lm having unexpectedlys'trong anti-static properties may be prepared by incorporating in its support a layer containing an ether of cellulose and cellulose acetate. rIhis invention is a specine application of the 'broader discovery disso closed in my co-pending application iiled February 2.1, 1921, Serial No. 446,782.
In the accompanyin drawing,- Ilig. 1 is a sectiona view on an exagger- 'applicatiom Serial No. 14:16,? 8B, -led Feb. 21,
ated scale of the preferred embodiment of my invention; '55
F ig. 2 is a sectional view on an exaggerated scale of a modification of the invention.
-layer 1, as shown in Fig. 2, but this is not the preferred form of my invention, a1- though useful photographic ilm may be made in that way.
In preparing a composition for forming the coating 3, I find it best to dissolve the cellulose ether and the cellulose acetate separately, the'two solutions being then mixed and finally diluted if desired. The following proportions and solvents are useful, but, of course,umay be widely varied. rI`he proportions are by weight. I may dissolve 45 parts of ethyl cellulose, of the kind which is insoluble in water and not injuriously softened bythe latter, in parts of ethylalcohol and 900 parts of chloroform. I separately dissolve 45 parts of acetone-soluble cellulose acetate in sullicient acetone to make a clear solution. I then combine the acetate parts. By using this method of mixing, a
properly diluted iiowable composition is provided which sets quickly when coated upon the nlm support, the volatile ingredients passing away and leaving a transparent, hard anti-static backing resistant to photographic solutions, said coating or backing comprising essentially cellulose ether and cellulose acetate.
This application is a division of my prior Having thus described my invention, what l claim as Vnew and desire tosecure by Letters Patent is:
l. A composition for 'forming a layer on an object containing a cellulose ester, said composition comprising a cellulose ether,
cellulose acetate, a solvent of said rst named ester, Oand a solvent for cellulose ether,Y said last named solvent having a stronger solvent action on said ether than said irst named solvent.
2. A, composition for forming a layer on a photographic film support containing ce1- lulose nitrate, said composition comprising cellulose ether, cellulose acetate, :amount of a nitrocellulose solvent incapable by itby itself of fully dissolving said ether.
3L A composition for forming a layer on a photographic film support containing cellulose nitrate, said composition comprising ethyl cellulose, cellulose acetate, chloroform, alcohol and acetone.
Signed at Rochester, New York, this 8th day of March, 1922.
ALBERT F. SULZER.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US543531A US1437829A (en) | 1921-02-21 | 1922-03-13 | Composition for making antistatic photographic films |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US446783A US1432367A (en) | 1921-02-21 | 1921-02-21 | Antistatic photographic film |
| US543531A US1437829A (en) | 1921-02-21 | 1922-03-13 | Composition for making antistatic photographic films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1437829A true US1437829A (en) | 1922-12-05 |
Family
ID=27034745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US543531A Expired - Lifetime US1437829A (en) | 1921-02-21 | 1922-03-13 | Composition for making antistatic photographic films |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1437829A (en) |
-
1922
- 1922-03-13 US US543531A patent/US1437829A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2173480A (en) | Manufacture of photographic materials | |
| US2271234A (en) | Colloidal carbon antihalation layer | |
| US2118059A (en) | Antistatic photographic film | |
| US3080317A (en) | Photographic film and process of producing same | |
| US2214446A (en) | Photographic development of silver halide layers | |
| US3072482A (en) | Subbed photographically sensitive film element | |
| US3042524A (en) | Plasticized gelatin and related proteinaceous colloids | |
| US2872318A (en) | Polystyrene film elements and subbing compositions therefor | |
| US2603564A (en) | Light sensitive diazotype layer containing a white opacifying pigment | |
| US1631421A (en) | Photographic film | |
| US1437829A (en) | Composition for making antistatic photographic films | |
| US1411677A (en) | Motion-picture film | |
| US2193035A (en) | Synthetic resin light filter | |
| US1627935A (en) | Laminated film which includes alpha layer of polymerized vinyl chloride | |
| US1437828A (en) | Composition of matter for use in film making | |
| US1930140A (en) | Acid hardening fixing bath | |
| US2367665A (en) | Photographic stripping film | |
| US1432366A (en) | Albert f | |
| US1432367A (en) | Antistatic photographic film | |
| US1846230A (en) | Photographic film | |
| US2420610A (en) | Antistatic photographic film | |
| US1908527A (en) | Antistatic nonhalation motion picture film | |
| US1342590A (en) | Photographic film | |
| US2346078A (en) | Antihalation protective layer | |
| US2748022A (en) | Cellulose ester photographic emulsions |