GB541039A - Improvement in abrasive materials and method of manufacturing the same - Google Patents
Improvement in abrasive materials and method of manufacturing the sameInfo
- Publication number
- GB541039A GB541039A GB2382/40A GB238240A GB541039A GB 541039 A GB541039 A GB 541039A GB 2382/40 A GB2382/40 A GB 2382/40A GB 238240 A GB238240 A GB 238240A GB 541039 A GB541039 A GB 541039A
- Authority
- GB
- United Kingdom
- Prior art keywords
- paris
- plaster
- kaolin
- feb
- oxidizing atmosphere
- 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
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
- C09K3/1418—Abrasive particles per se obtained by division of a mass agglomerated by sintering
-
- 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
- C09K3/14—Anti-slip materials; Abrasives
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
541,039. Abrasive material. BABCOCK & WILCOX CO. Feb. 7, 1940, Nos. 2382 and 2383. Convention dates, Feb. 11, 1939, and Jan. 24, 1940. [Classes 22 and 70] An abrasive material suitable for polishing glass is made by calcining an alumina-silica base material such as kaolin to a temperature below fusion, but not less than 1010‹ C. until recrystallization has progressed sufficiently to form microscopic mullite crystals embedded in a matrix and reducing the calcined material to a finely divided condition. Lime or plaster of Paris may be added as a fluxing material capable of lowering the mullite crystallization temperature, and also to absorb impurities, but these may be replaced by borax, bottle glass, feldspar, lead oxide or sodium carbonate. An example is given in which a mixture of kaolin, plaster of Paris and wood sawdust is moulded and heated in a non-oxidizing atmosphere and finally in an oxidizing atmosphere to about 1290‹ C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US541039XA | 1939-02-11 | 1939-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB541039A true GB541039A (en) | 1941-11-11 |
Family
ID=21988832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2382/40A Expired GB541039A (en) | 1939-02-11 | 1940-02-07 | Improvement in abrasive materials and method of manufacturing the same |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR863372A (en) |
| GB (1) | GB541039A (en) |
-
1940
- 1940-02-07 GB GB2382/40A patent/GB541039A/en not_active Expired
- 1940-02-10 FR FR863372D patent/FR863372A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR863372A (en) | 1941-03-31 |
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