GB448307A - Improvements in insulating materials and in electrical materials insulated therewith - Google Patents
Improvements in insulating materials and in electrical materials insulated therewithInfo
- Publication number
- GB448307A GB448307A GB20150/35A GB2015035A GB448307A GB 448307 A GB448307 A GB 448307A GB 20150/35 A GB20150/35 A GB 20150/35A GB 2015035 A GB2015035 A GB 2015035A GB 448307 A GB448307 A GB 448307A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- yarns
- filaments
- materials
- cellulose
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Organic Insulating Materials (AREA)
- Insulated Conductors (AREA)
Abstract
Electric materials, e.g. conductors, are insulated by means of filaments or the like having a basis of an organic derivative of cellulose and which contain an ester of phosphoric acid in an amount equal to at least 20 per cent of the weight of the cellulose derivative. A number of suitable phosphoric esters are specified. Particularly useful as insulators are low-twist yarns of continuous filaments, but other yarns, artificial straw, and yarns spun from staple fibre may also be employed. The insulator may be used together with other insulating materials, e.g. coatings of rubber or enamel. In an example, 100 parts of cellulose acetate and 20 parts of tricresyl phosphate are dissolved in acetone, spun to filaments of 1,5 to 3 denier, grouped, and twisted to 1 to 5 turns per inch. In a second example, the spinning solution comprises a solution of 100 parts of cellulose acetate and 50 parts of tricresyl phosphate in acetone. The yarn obtained by either of these examples is lubricated with olive oil and braided or wrapped spirally on to copper wire of \ba1/40\be inch diameter. The Specification as open to inspection under Sect. 91 is not limited to the use of the insulating material in filament or like form.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US448307XA | 1934-07-26 | 1934-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB448307A true GB448307A (en) | 1936-06-05 |
Family
ID=21934562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20150/35A Expired GB448307A (en) | 1934-07-26 | 1935-07-15 | Improvements in insulating materials and in electrical materials insulated therewith |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB448307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2448633A (en) * | 1943-06-23 | 1948-09-07 | Western Electric Co | Insulated electrical conductor |
-
1935
- 1935-07-15 GB GB20150/35A patent/GB448307A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2448633A (en) * | 1943-06-23 | 1948-09-07 | Western Electric Co | Insulated electrical conductor |
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