CH431814A - Board for the production of welding protection screens - Google Patents
Board for the production of welding protection screensInfo
- Publication number
- CH431814A CH431814A CH357164A CH357164A CH431814A CH 431814 A CH431814 A CH 431814A CH 357164 A CH357164 A CH 357164A CH 357164 A CH357164 A CH 357164A CH 431814 A CH431814 A CH 431814A
- Authority
- CH
- Switzerland
- Prior art keywords
- mass
- absorber
- welding protection
- production
- plastic
- Prior art date
Links
- 238000003466 welding Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 claims description 4
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 claims description 4
- 229940081735 acetylcellulose Drugs 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- 229920002301 cellulose acetate Polymers 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000001046 green dye Substances 0.000 claims description 4
- 239000004071 soot Substances 0.000 claims description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- YYQRGCZGSFRBAM-UHFFFAOYSA-N Triclofos Chemical compound OP(O)(=O)OCC(Cl)(Cl)Cl YYQRGCZGSFRBAM-UHFFFAOYSA-N 0.000 claims description 2
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 claims description 2
- 239000003738 black carbon Substances 0.000 claims description 2
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 claims description 2
- 229960001826 dimethylphthalate Drugs 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000004014 plasticizer Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 229960001147 triclofos Drugs 0.000 claims description 2
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 2
- BAFZFEVYGXWENS-UHFFFAOYSA-H tripotassium;5,6-diaminonaphthalene-1,3-disulfonate;iron(3+) Chemical compound [K+].[K+].[K+].[Fe+3].[O-]S(=O)(=O)C1=CC(S([O-])(=O)=O)=CC2=C(N)C(N)=CC=C21.[O-]S(=O)(=O)C1=CC(S([O-])(=O)=O)=CC2=C(N)C(N)=CC=C21.[O-]S(=O)(=O)C1=CC(S([O-])(=O)=O)=CC2=C(N)C(N)=CC=C21 BAFZFEVYGXWENS-UHFFFAOYSA-H 0.000 claims description 2
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
- A61F9/06—Masks, shields or hoods for welders
- A61F9/065—Masks, shields or hoods for welders use of particular optical filters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/10—Esters of organic acids, i.e. acylates
- C08L1/12—Cellulose acetate
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Optics & Photonics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Optical Filters (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Fodder In General (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
Tafel zur Herstellung von Schweisserschutzblenden
Gegenstand der vorliegenden Erfindung ist eine Tafel zur Herstellung von Schweisserschutzblenden, bestehend aus einer Masse von durchsichtigem Kunststoff, wobei in der Masse ein Ultraviolettstrahlungs-Absorber eingefärbt ist, und einem Infrarot-Absorber.
Die Erfindung ist dadurch gekennzeichnet, dass der Infrarot-Absorber aus in der Kunststoffmasse beigemischtem Russ besteht.
Ein Ausführungsbeispiel des Erfindungsgegenstandes wird in folgender Weise hergestellt:
3000 g Acetylcellulose (Essigsäuregehalt etwa 52-55 O/o),
200 g Dimethylphthalat,
250 g Triphenylphosphat
550 g Trichloräthylphosphat werden in einem Kneter mit der notwendigen Menge eines Lösungsmittels, wie z. B. Aceton oder einem Alkoholbenzolgemisch, homogenisiert. Darauf werden 16 g eines handelsüblichen UV-Absorbers, z. B. auf der Basis von Acetophenon, 19,8 g Farbruss, z. B. Spezialschwarz und 0,84 g eines löslichen grünen Farbstoffes, z. B. Filterblaugrün, zugegeben. Die Masse wird in an sich bekannter Weise gewalzt und zu Fellen ausgezogen. Die Felle werden dann zu einem Block verschweisst und von diesem werden Tafeln bestimmter Stärke abgeschnitten. Die Tafeln werden getrocknet und in einer Plattenpresse unter Druck und Wärme poliert.
Die polierten Tafeln entsprechen den DIN-Vorschriften 4646 und 4647 über Schweisserschutzscheiben. Je nach der geschnittenen Wandstärke werden die verschiedenen Schutzstufen erreicht.
Die UV-Bedingungen werden mit Hilfe des handels üblichen UV-Absorbers, die Ultrarotbedingungen durch den zugegebenen Russ erfüllt. Der grüne Farbstoff dient lediglich zur Herstellung eines visuell angenehmen Farbtones.
PATENTANSPRUCH
Tafel zur Herstellung von Schweisserschutzblenden, bestehend aus einer Masse von durchsichtigem Kunststoff, wobei in der Masse ein Ultraviolettstrahlungs Absorber eingefärbt ist, und einem Infrarot-Absorber, dadurch gekennzeichnet, dass der Infrarotabsorber aus in der Kunststoffmasse beigemischtem Russ besteht.
UNTERANSPRÜCHE
1. Tafel nach Patentanspruch, dadurch gekennzeichnet, dass die Kunststoffmasse gewichtsbezogen 0,5 Gewichtsteile Schwarzruss enthält.
2. Tafel nach Patentanspruch, dadurch gekennzeichnet, dass die durchsichtigen Kunststofftafeln aus sekundärem Celluloseacetat mit 52 bis 550/0 Essigsäure im Ester bestehen.
3. Tafel nach Patentanspruch, dadurch gekennzeichnet, dass sie einen Weichmacher enthält.
**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.
Board for the production of welding protection screens
The present invention relates to a panel for the production of welding protection screens, consisting of a mass of transparent plastic, an ultraviolet radiation absorber being colored in the mass, and an infrared absorber.
The invention is characterized in that the infrared absorber consists of soot mixed into the plastic compound.
An embodiment of the subject matter of the invention is produced in the following way:
3000 g acetyl cellulose (acetic acid content about 52-55 o / o),
200 g dimethyl phthalate,
250 g triphenyl phosphate
550 g of trichloroethyl phosphate are in a kneader with the necessary amount of a solvent, such as. B. acetone or an alcohol benzene mixture, homogenized. Then 16 g of a commercially available UV absorber, z. B. based on acetophenone, 19.8 g carbon black, z. B. special black and 0.84 g of a soluble green dye, e.g. B. filter blue-green added. The mass is rolled in a manner known per se and drawn into skins. The skins are then welded into a block and sheets of a certain thickness are cut from this. The panels are dried and polished in a platen press under pressure and heat.
The polished panels comply with DIN regulations 4646 and 4647 on welding protection washers. Depending on the cut wall thickness, the different protection levels are achieved.
The UV conditions are met with the help of the commercially available UV absorber, the ultrared conditions by the added carbon black. The green dye is only used to produce a visually pleasant shade.
PATENT CLAIM
Panel for the production of welding protection screens, consisting of a mass of transparent plastic, with an ultraviolet radiation absorber being colored in the mass, and an infrared absorber, characterized in that the infrared absorber consists of soot mixed in the plastic mass.
SUBCLAIMS
1. Table according to claim, characterized in that the plastic compound contains 0.5 parts by weight of black carbon by weight.
2. Panel according to claim, characterized in that the transparent plastic panels consist of secondary cellulose acetate with 52 to 550/0 acetic acid in the ester.
3. Board according to claim, characterized in that it contains a plasticizer.
** WARNING ** End of DESC field could overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1949D0026757 DE1619038U (en) | 1949-05-02 | 1949-05-02 | SCALE WITH SLIDING WEIGHT IN PARTICULAR BEEHIVE SCALE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH431814A true CH431814A (en) | 1967-03-15 |
Family
ID=29753994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH357164A CH431814A (en) | 1949-05-02 | 1964-03-19 | Board for the production of welding protection screens |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE647039A (en) |
| CH (1) | CH431814A (en) |
| DE (1) | DE1619038U (en) |
| FR (1) | FR1389087A (en) |
| GB (1) | GB1060780A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2097810B (en) * | 1981-04-04 | 1984-11-28 | Sevendart Ltd | Apparatus for use in sunbathing |
| DE3220072C2 (en) * | 1982-05-27 | 1986-09-04 | Deutsche Spezialglas Ag, 3223 Delligsen | Dark blue colored furnace sight glass with high infrared absorption |
| US5036115A (en) * | 1984-06-08 | 1991-07-30 | Photoprotective Technologies, Inc. | Optical lens system incorporating melanin as an absorbing pigment for protection against electromagnetic radiation |
| US5187207A (en) * | 1984-06-08 | 1993-02-16 | Photoprotective Technologies, Inc. | Melanin hydrophilic contact lenses |
| US5116884A (en) * | 1984-06-08 | 1992-05-26 | Photoprotective Technology Incorporated | Melanin hydrophilic contact lenses |
| US5112883A (en) * | 1984-06-08 | 1992-05-12 | Photoprotective Technologies Incorporated | Medium incorporating melanin as an absorbing pigment against electromagnetic radiation |
| US5047447A (en) * | 1984-06-08 | 1991-09-10 | Photoprotecive Technologies Incorporated | Medium incorporating melanin as an absorbing pigment for protection against electromagnetic radiation |
| AU4622689A (en) * | 1988-10-06 | 1990-05-01 | Photoprotective Technologies Incorporated | Medium incorporating melanin as an absorbing pigment for protection against electromagnetic radiation |
-
1949
- 1949-05-02 DE DE1949D0026757 patent/DE1619038U/en not_active Expired
-
1964
- 1964-02-12 FR FR963560A patent/FR1389087A/en not_active Expired
- 1964-03-19 CH CH357164A patent/CH431814A/en unknown
- 1964-04-20 GB GB1624864A patent/GB1060780A/en not_active Expired
- 1964-04-24 BE BE647039A patent/BE647039A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE647039A (en) | 1964-08-17 |
| DE1619038U (en) | 1951-01-25 |
| GB1060780A (en) | 1967-03-08 |
| FR1389087A (en) | 1965-02-12 |
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