GB813920A - Improvements in cinematograph screens - Google Patents
Improvements in cinematograph screensInfo
- Publication number
- GB813920A GB813920A GB10511/56A GB1051156A GB813920A GB 813920 A GB813920 A GB 813920A GB 10511/56 A GB10511/56 A GB 10511/56A GB 1051156 A GB1051156 A GB 1051156A GB 813920 A GB813920 A GB 813920A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lacquer
- bismuth oxychloride
- mixed
- coated
- white
- 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
Links
- 239000004922 lacquer Substances 0.000 abstract 4
- GLQBXSIPUULYOG-UHFFFAOYSA-M Bismuth oxychloride Chemical compound Cl[Bi]=O GLQBXSIPUULYOG-UHFFFAOYSA-M 0.000 abstract 3
- 229940073609 bismuth oxychloride Drugs 0.000 abstract 3
- 239000004744 fabric Substances 0.000 abstract 2
- 239000004615 ingredient Substances 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 238000002310 reflectometry Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
813,920. Coated fabrics. HARKNESS Ltd., A. S. Feb. 13, 1957 [April 6, 1956], No. 10511/56. Drawings to Specification. Class 140. [Also in Group XX] A projection screen comprises a screen base coated with a lacquer containing an ingredient of a lamellar or plate-like crystalline structure having both high refractive index and high reflectivity, said ingredient consisting of bismuth oxychloride. The screen base may be formed of a single strip or of a plurality of strips of fabric or sheet of polyvinylchloride. Advantageously the base should be white and if it is not made from white material it may be coated with a white glass pigment consisting of titanium dioxide mixed in a vinyl chloride/vinyl acetate copolymer binder lacquer. This coating is then covered with several overlapping coatings of the bismuth oxychloride lacquer. Preferably the bismuth oxychloride is mixed with a solution of a colourless resin and this paste is then mixed into a polyvinyl lacquer comprising copolymerized vinyl chloride and vinyl acetate dispersed in ketones and aromatic hydrocarbons. The coatings may be sprayed or applied by roller.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB813920A true GB813920A (en) | 1959-05-27 |
Family
ID=1699989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10511/56A Expired GB813920A (en) | 1956-04-06 | Improvements in cinematograph screens |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB813920A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000000666A1 (en) * | 1998-06-26 | 2000-01-06 | Alliance Europe, Naamloze Vennootschap | Enamelled projection screen and method for the manufacturing thereof |
-
1956
- 1956-04-06 GB GB10511/56A patent/GB813920A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000000666A1 (en) * | 1998-06-26 | 2000-01-06 | Alliance Europe, Naamloze Vennootschap | Enamelled projection screen and method for the manufacturing thereof |
| BE1012996A3 (en) * | 1998-06-26 | 2001-07-03 | Alliance Europ Nv | Enamelled projection screen and method of manufacturing it. |
| US6476964B1 (en) | 1998-06-26 | 2002-11-05 | Poly Vision, Naamloze Vennootschap | Enamelled projection screen and method for the manufacturing thereof |
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