GB738339A - Improvements in heat transfer compositions comprising organo-silicates - Google Patents
Improvements in heat transfer compositions comprising organo-silicatesInfo
- Publication number
- GB738339A GB738339A GB13255/53A GB1325553A GB738339A GB 738339 A GB738339 A GB 738339A GB 13255/53 A GB13255/53 A GB 13255/53A GB 1325553 A GB1325553 A GB 1325553A GB 738339 A GB738339 A GB 738339A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- silicates
- mols
- radical
- phenylphenol
- 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
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises a mixture in disproportionation equilibrium of silicates of the formul <FORM:0738339/IV (b)/1> , <FORM:0738339/IV (b)/2> , wherein R represents at least one aromatic hydrocarbon radical other than the phenyl radical, the said mixture having the average formula C6H5Si(OC6H5)x(OR)y, wherein R has the above significance, x has a value from 0.75 to 2.5, y has a value from 0.5 to 2.25 and the sum of x and y is 3, and a process for the preparation thereof by reacting substantially one mol. of phenyltrichlorosilane with a mixture of substantially three mols. of phenolic compounds, said mixture comprising from 0.75 to 2.5 mols. of phenol and from 0.5 to 2.25 mols. of the other required phenolic compounds. It is preferred to use approximately 10 per cent excess of phenolic reactants for the above reaction. Suitable phenols to produce the radical RO-are o-, m- and p-cresol, the isomeric ethylphenols, o-, m- and p-phenylphenol, alpha- and beta-naphthol and a commercial mixture of isomeric cresols. The four silicates of the above general formula can be separated by distillation. In the examples a number of mixtures are prepared using a commercial mixture of cresols or o-phenylphenol and phenol.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US738339XA | 1952-10-22 | 1952-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB738339A true GB738339A (en) | 1955-10-12 |
Family
ID=22116074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13255/53A Expired GB738339A (en) | 1952-10-22 | 1953-05-12 | Improvements in heat transfer compositions comprising organo-silicates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB738339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0352511A2 (en) * | 1988-07-23 | 1990-01-31 | Linde Aktiengesellschaft | Cooling mixture |
-
1953
- 1953-05-12 GB GB13255/53A patent/GB738339A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0352511A2 (en) * | 1988-07-23 | 1990-01-31 | Linde Aktiengesellschaft | Cooling mixture |
| EP0352511A3 (en) * | 1988-07-23 | 1990-05-30 | Linde Aktiengesellschaft | Cooling mixture |
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