GB1111590A - Improvements in or relating to transparent members - Google Patents
Improvements in or relating to transparent membersInfo
- Publication number
- GB1111590A GB1111590A GB5131165A GB5131165A GB1111590A GB 1111590 A GB1111590 A GB 1111590A GB 5131165 A GB5131165 A GB 5131165A GB 5131165 A GB5131165 A GB 5131165A GB 1111590 A GB1111590 A GB 1111590A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrophilic
- windows
- alkali
- acid
- wetting agent
- 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
- 229920002678 cellulose Polymers 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- 239000003513 alkali Substances 0.000 abstract 3
- 230000005660 hydrophilic surface Effects 0.000 abstract 3
- 239000000080 wetting agent Substances 0.000 abstract 3
- 239000001913 cellulose Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000004033 plastic Substances 0.000 abstract 2
- 229920003023 plastic Polymers 0.000 abstract 2
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000001427 coherent effect Effects 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000009189 diving Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000241 respiratory effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/082—Assembling eyepieces, lenses or vision-correction means in or on gas-masks
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/12—Diving masks
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Emergency Management (AREA)
- Organic Chemistry (AREA)
- Business, Economics & Management (AREA)
- Pulmonology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laminated Bodies (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Lift Valve (AREA)
Abstract
1,111,590. Films having hydrophilic surfaces. O. H. DRAGER, [trading as DRAGERWERK HEINR. & BERNH. DRAGER]. 2 Dec., 1965 [5 Dec., 1964], No. 51311/65. Heading B5B. [Also in Division G2] A process for the production of a transparent film or sheet formed from an artificial plastics material having one or more saponifiable groups and having an hydrophilic surface substantially resistant to misting, comprises treating a surface of said film or sheet with an alkali or an acid and thereafter treating the resulting surface with an acid or an alkali respectively, whereby there is obtained a transparent film having an hydrophilic surface substantially resistant to misting. Suitably, the artificial plastics material is a cellulose or a cellulose derivative, especially a cellulose ester, and the treatment of the surface with an acid or an alkali may be carried out in the presence of an oxidizing agent or a reducing agent. The surface may be subsequently treated with a wetting agent, suitably a sulphonate, in the presence of heat. For example, the surface so treated, cleaned with water and dried, may have its treated surface thinly coated with a wetting agent concentrate and heated to 60‹ to 80‹ C. for a short time in a drying chamber. The excess wetting agent may then be rinsed off and the surface dried. It is also possible to use chemical reactions of the saponified cellulose ester with sulphonates or other suitable substances in order to increase the hydrophilic effect. Such surface treatment may be applied to films and sheets used as visor windows or clear-vision windows for respiratory apparatus masks or diving masks, as such treatment obviates the risk of the window becoming clouded with precipitation of moisture on the visor window. The inside surface of such windows can receive condensed water vapour in any quantity and water can flow off the surface again without the hydrophilic properties of the surface becoming less effective on prolonged use, since owing to the hydrophilic behaviour of the surface, a coherent film of water forms thereon and the window remains clearly transparent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED0045997 | 1964-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1111590A true GB1111590A (en) | 1968-05-01 |
Family
ID=7049408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5131165A Expired GB1111590A (en) | 1964-12-05 | 1965-12-02 | Improvements in or relating to transparent members |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT265031B (en) |
| BE (1) | BE673251A (en) |
| CH (1) | CH438042A (en) |
| DK (1) | DK114597B (en) |
| FR (1) | FR1466411A (en) |
| GB (1) | GB1111590A (en) |
| NL (1) | NL6515541A (en) |
| NO (1) | NO120968B (en) |
| SE (1) | SE334544B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0432491A3 (en) * | 1989-11-15 | 1992-04-01 | Tesimax-Altinger Gmbh | Viewing window, especially for thermal protection clothing |
| FR2727649A1 (en) * | 1994-12-01 | 1996-06-07 | Sgcn | METHOD FOR DECORATING OR MARKING AN OBJECT IN PLASTIC MATERIAL |
-
1965
- 1965-11-13 NO NO16046165A patent/NO120968B/no unknown
- 1965-11-25 AT AT1062265A patent/AT265031B/en active
- 1965-11-29 FR FR40117A patent/FR1466411A/en not_active Expired
- 1965-11-30 CH CH1645765A patent/CH438042A/en unknown
- 1965-11-30 NL NL6515541A patent/NL6515541A/xx unknown
- 1965-12-02 SE SE1562265A patent/SE334544B/xx unknown
- 1965-12-02 GB GB5131165A patent/GB1111590A/en not_active Expired
- 1965-12-03 BE BE673251D patent/BE673251A/xx unknown
- 1965-12-04 DK DK625765A patent/DK114597B/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0432491A3 (en) * | 1989-11-15 | 1992-04-01 | Tesimax-Altinger Gmbh | Viewing window, especially for thermal protection clothing |
| FR2727649A1 (en) * | 1994-12-01 | 1996-06-07 | Sgcn | METHOD FOR DECORATING OR MARKING AN OBJECT IN PLASTIC MATERIAL |
Also Published As
| Publication number | Publication date |
|---|---|
| BE673251A (en) | 1966-04-01 |
| AT265031B (en) | 1968-09-25 |
| CH438042A (en) | 1967-06-15 |
| NL6515541A (en) | 1966-06-06 |
| DK114597B (en) | 1969-07-14 |
| FR1466411A (en) | 1967-01-20 |
| SE334544B (en) | 1971-04-26 |
| NO120968B (en) | 1970-12-28 |
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