GB1528501A - Dustless powder - Google Patents
Dustless powderInfo
- Publication number
- GB1528501A GB1528501A GB859/76A GB85976A GB1528501A GB 1528501 A GB1528501 A GB 1528501A GB 859/76 A GB859/76 A GB 859/76A GB 85976 A GB85976 A GB 85976A GB 1528501 A GB1528501 A GB 1528501A
- Authority
- GB
- United Kingdom
- Prior art keywords
- powder
- ptfe
- aluminium
- dustless
- dispersion
- 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
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
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B43/00—Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/62—Metallic pigments or fillers
- C09C1/64—Aluminium
- C09C1/644—Aluminium treated with organic compounds, e.g. polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Paints Or Removers (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Electrolytic Production Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1528501 Rendering powder dustless ALUMINIUM CO OF AMERICA 9 Jan 1976 [4 Feb 1975 7 July 1975] 00859/76 Heading C4X Powder, e.g. aluminium powder, is rendered dustless by mixing wet - 200 mesh powder (i.e. less than 74 microns) with a dispersion of- 60 mesh PTFE particles until the powder satisfies a described test for dustlessness, with no PTFE fibre matrix being formed. The amount of PTFE may be 0À1-0À6 wt. per cent based on Al. The dispersion may comprise PTFE particles of size 0À05-0À5 microns slurried in water. In the illustrated layout for producing stearic acid-coated aluminium flakes by milling atomized aluminium or foil scrap with stearic acid and mineral spirits, the PTFE dispersion may be added at the mixer 32A or the lower sludge tank 20, the mixture being vacuum dried with heat at 32B. Alternatively the aluminium powder may be slurried in methanol. The products have sensitizing properties making them useful for incorporation in explosive and blasting compositions. The dustless properties are believed to result from the powder particles being weakly adhered together by PTFE particles, which may be deformed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54705875A | 1975-02-04 | 1975-02-04 | |
| US59362675A | 1975-07-07 | 1975-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1528501A true GB1528501A (en) | 1978-10-11 |
Family
ID=27068442
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB859/76A Expired GB1528501A (en) | 1975-02-04 | 1976-01-09 | Dustless powder |
| GB2832/78A Expired GB1528502A (en) | 1975-02-04 | 1976-01-09 | Dustless aluminum powder |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2832/78A Expired GB1528502A (en) | 1975-02-04 | 1976-01-09 | Dustless aluminum powder |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5524481B2 (en) |
| BR (1) | BR7600622A (en) |
| CA (1) | CA1065525A (en) |
| DE (1) | DE2603313C3 (en) |
| FR (2) | FR2328748A1 (en) |
| GB (2) | GB1528501A (en) |
| IN (1) | IN155817B (en) |
| MX (1) | MX4527E (en) |
| NO (1) | NO142438C (en) |
| PH (1) | PH13561A (en) |
| SE (1) | SE421863B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539043A (en) * | 1976-07-14 | 1978-01-27 | Kurita Water Ind Ltd | Process for dissolving and supplying powder medicine |
| SE427434B (en) * | 1980-03-06 | 1983-04-11 | Hoeganaes Ab | IRON-BASED POWDER MIXED WITH ADDITION TO MIXTURE AND / OR DAMAGE |
| AU677245B2 (en) * | 1992-12-24 | 1997-04-17 | Commonwealth Scientific And Industrial Research Organisation | Agglomerates |
| DE102006011309A1 (en) * | 2006-03-11 | 2007-09-13 | Forschungszentrum Karlsruhe Gmbh | Process for coating powders |
| EP2156945A1 (en) | 2008-08-13 | 2010-02-24 | Novelis Inc. | Clad automotive sheet product |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49107992A (en) * | 1972-10-20 | 1974-10-14 |
-
1975
- 1975-12-15 CA CA241,738A patent/CA1065525A/en not_active Expired
-
1976
- 1976-01-09 GB GB859/76A patent/GB1528501A/en not_active Expired
- 1976-01-09 GB GB2832/78A patent/GB1528502A/en not_active Expired
- 1976-01-12 IN IN79/CAL/76A patent/IN155817B/en unknown
- 1976-01-12 NO NO760090A patent/NO142438C/en unknown
- 1976-01-21 PH PH18000A patent/PH13561A/en unknown
- 1976-01-21 MX MX762085U patent/MX4527E/en unknown
- 1976-01-27 DE DE2603313A patent/DE2603313C3/en not_active Expired
- 1976-01-28 SE SE7600858A patent/SE421863B/en not_active IP Right Cessation
- 1976-01-29 JP JP804376A patent/JPS5524481B2/ja not_active Expired
- 1976-01-30 FR FR7602601A patent/FR2328748A1/en active Granted
- 1976-01-30 BR BR7600622A patent/BR7600622A/en unknown
- 1976-09-03 FR FR7626682A patent/FR2333837A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2328748A1 (en) | 1977-05-20 |
| CA1065525A (en) | 1979-10-30 |
| DE2603313A1 (en) | 1976-08-05 |
| BR7600622A (en) | 1976-08-31 |
| JPS51105977A (en) | 1976-09-20 |
| AU1071776A (en) | 1977-08-11 |
| DE2603313C3 (en) | 1980-10-16 |
| NO760090L (en) | 1976-08-05 |
| DE2603313B2 (en) | 1980-02-28 |
| PH13561A (en) | 1980-06-26 |
| GB1528502A (en) | 1978-10-11 |
| IN155817B (en) | 1985-03-09 |
| FR2333837A1 (en) | 1977-07-01 |
| MX4527E (en) | 1982-06-03 |
| JPS5524481B2 (en) | 1980-06-30 |
| NO142438C (en) | 1980-08-20 |
| SE421863B (en) | 1982-02-08 |
| FR2328748B1 (en) | 1979-08-24 |
| NO142438B (en) | 1980-05-12 |
| SE7600858L (en) | 1976-08-05 |
| FR2333837B1 (en) | 1980-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19960108 |