Method of fabricating an electric insulator with a polymer housing containing antiozonants
US8258218B2 · kind B2 · utility
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10References
5Claims
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Assignee
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Key dates
| Filing date | Feb 13, 2009 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Jan 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B3/46
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of fabricating a composite insulator with a protective housing made of a polymer material incorporating an antioxidant and an antiozonant includes the step consisting in incorporating said antiozonant at a final concentration by weight lying in the range 0.005% to 1%, and said antioxidant at a final concentration by weight lying in the range 0.005% to 1%, said antiozonant being selected from the family of phenylenediamines, and said antioxidant being selected from the family of multifunctional phenolic antioxidants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.