BE448028A - - Google Patents
Info
- Publication number
- BE448028A BE448028A BE448028DA BE448028A BE 448028 A BE448028 A BE 448028A BE 448028D A BE448028D A BE 448028DA BE 448028 A BE448028 A BE 448028A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE232897X | 1939-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE448028A true BE448028A (OSRAM) | 1942-12-31 |
Family
ID=5883286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE448028D BE448028A (OSRAM) | 1939-08-22 | 1942-11-18 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE448028A (OSRAM) |
| CH (1) | CH232897A (OSRAM) |
| DE (1) | DE877830C (OSRAM) |
| FR (1) | FR887694A (OSRAM) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB459878A (en) * | 1934-08-29 | 1937-01-18 | Carbide & Carbon Chem Corp | Polyvinyl acetal resins |
| FR825423A (fr) * | 1936-08-29 | 1938-03-03 | Carbide & Carbon Chem Corp | Fabrication d'articles faconnés, tels que des lames, des barres, etc., avec des compositions plastiques contenant des resines artificielles |
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1939
- 1939-08-22 DE DEF3852D patent/DE877830C/de not_active Expired
-
1942
- 1942-10-12 CH CH232897D patent/CH232897A/de unknown
- 1942-11-13 FR FR887694D patent/FR887694A/fr not_active Expired
- 1942-11-18 BE BE448028D patent/BE448028A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR887694A (fr) | 1943-11-19 |
| CH232897A (de) | 1944-06-30 |
| DE877830C (de) | 1953-05-26 |