GB695202A - Improvements in or relating to processes for coating comminuted or granular materials with bituminous binders - Google Patents
Improvements in or relating to processes for coating comminuted or granular materials with bituminous bindersInfo
- Publication number
- GB695202A GB695202A GB75850A GB75850A GB695202A GB 695202 A GB695202 A GB 695202A GB 75850 A GB75850 A GB 75850A GB 75850 A GB75850 A GB 75850A GB 695202 A GB695202 A GB 695202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- emulsion
- keratin
- protein
- bitumen
- colloidal
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
Granular material is coated by mixing therewith a liquefied bituminous substance in the presence of an alkali metal silicate and a colloidal solution obtained by the complete hydrolytic decomposition of a protein. The bitumen may be liquefied by dissolution, heating or emulsification. Keratin is the preferred colloidal protein, and the amount of silicate preferred is 2 per cent. by weight of the keratin, the keratin itself amounting to 0.7 per cent. of the bitumen/keratin mixture. When the bitumen is an emulsion, an acid medium is desirable especially an acid tanning agent, e.g. iron sulphate solution plus basic chromium salts, which simultaneously preserves the colloidal protein solution. The sequence of mixing the different components may be varied. The treated emulsion can be diluted with original emulsion and if solvents or solvent-containing substances, e.g. cut back bitumens, are also added, the breaking of the emulsion can be controlled. Heating also affects breaking of the emulsion. The protein colloid may itself be tanned and, as such, used to coat the aggregate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB75850A GB695202A (en) | 1950-01-11 | 1950-01-11 | Improvements in or relating to processes for coating comminuted or granular materials with bituminous binders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB75850A GB695202A (en) | 1950-01-11 | 1950-01-11 | Improvements in or relating to processes for coating comminuted or granular materials with bituminous binders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB695202A true GB695202A (en) | 1953-08-05 |
Family
ID=9710014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB75850A Expired GB695202A (en) | 1950-01-11 | 1950-01-11 | Improvements in or relating to processes for coating comminuted or granular materials with bituminous binders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB695202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986889A (en) * | 1968-10-15 | 1976-10-19 | Wibau (Wesdeutsche Industrie- Und Strassenbaumaschinen-Gesellschaft M.B.H.) | Method of producing a mixture of bitumen and subdivided solid mineral matter |
-
1950
- 1950-01-11 GB GB75850A patent/GB695202A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986889A (en) * | 1968-10-15 | 1976-10-19 | Wibau (Wesdeutsche Industrie- Und Strassenbaumaschinen-Gesellschaft M.B.H.) | Method of producing a mixture of bitumen and subdivided solid mineral matter |
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