GB946876A - Binderú»elastomer emulsions having an acid continuous phase and their preparation - Google Patents
Binderú»elastomer emulsions having an acid continuous phase and their preparationInfo
- Publication number
- GB946876A GB946876A GB865361A GB865361A GB946876A GB 946876 A GB946876 A GB 946876A GB 865361 A GB865361 A GB 865361A GB 865361 A GB865361 A GB 865361A GB 946876 A GB946876 A GB 946876A
- Authority
- GB
- United Kingdom
- Prior art keywords
- emulsion
- binder
- elastomer
- prepared
- mixing
- 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
- C08L21/00—Compositions of unspecified rubbers
- C08L21/02—Latex
Abstract
An aqueous emulsion containing a bitumen or pitch binder and a natural or synthetic elastomer is prepared by mixing an emulsion of the binder with an emulsion of the elastomer, the pH of each continuous phase being adjusted, before mixing, to pH 2-4. The binder in water emulsion may be prepared by adding a solution of an oil-in-water type emulsifying agent in molten binder to a solution of a similar, preferably the same, emulsifying agent in water. Diamines having 18 carbon atoms are preferred and pH adjustment may be effected with hydrochloric acid. The elastomer emulsion may be prepared by adding an oil-in-water type emulsifying agent, e.g. the condensation products, of ethylene oxide and octylphenol, to an alkaline latex, followed by hydrochloric acid addition. The mixed emulsions may contain 0.1 to 12% elastomer and 50-70% binder. Examples refer to the mixing of a bitumen emulsion of pH 2.3 with a stabilized natural rubber latex of pH 4, and with a neoprene latex having a pH of 3.5 and containing as emulsifying agent the condensation product of 9 moles of ethylene oxide with one of octylphenol.ALSO:An aqueous emulsion containing a bitumen or pitch binder and a natural or synthetic elastomer is prepared by mixing an emulsion of the binder with an emulsion of the elastomer, the pH of each continuous phase being adjusted, before mixing, to pH 2-4. The binder-in-water emulsion may be prepared by adding a solution of an oil-in-water type emulsifying agent in molten binder to a solution of a similar, preferably the same, emulsifier in water. Diamines having 18 carbon atoms are preferred and pH adjustment may be effected with hydrochloric acid. The elastomer emulsion may be prepared by adding an oil-in-water type emulsifier, e.g. the condensation product of ethylene oxide and octylphenol to an alkaline latex followed by hydrochloric acid addition. The mixed emulsions may contain 0,1-12% elastomer and 50-70% binder. Examples refer to the mixing of a bitumen emulsion of pH 2,3 with a stabilized natural rubber latex of pH 4, and with a neoprene latex having a pH of 3,5 containing as emulsifier, the condensation product of 9 moles of ethylene oxide with one of octylphenol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR821995A FR1261241A (en) | 1960-03-21 | 1960-03-21 | New process for the preparation of mixed cationic emulsions comprising hydrocarbon binders and elastomers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB946876A true GB946876A (en) | 1964-01-15 |
Family
ID=8727583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB865361A Expired GB946876A (en) | 1960-03-21 | 1961-03-09 | Binderú»elastomer emulsions having an acid continuous phase and their preparation |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE601606A (en) |
| FR (1) | FR1261241A (en) |
| GB (1) | GB946876A (en) |
-
0
- BE BE601606D patent/BE601606A/xx unknown
-
1960
- 1960-03-21 FR FR821995A patent/FR1261241A/en not_active Expired
-
1961
- 1961-03-09 GB GB865361A patent/GB946876A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE601606A (en) | |
| FR1261241A (en) | 1961-05-19 |
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