Patent · US Active

Silicone rubber composition for use as high-voltage insulator and polymer insulator

US8697798B2 · kind B2 · utility

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Key dates

Filing dateMar 14, 2013
Grant dateApr 15, 2014
Priority date
Expiry dateMar 14, 2033

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/2995
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A silicone rubber composition comprising (A) an organopolysiloxane composition of the organic peroxide cure or addition reaction cure type, (B) a normally solid organic compound having at least two ester bonds per molecule, and (C) particulate aluminum hydroxide having an average particle size of up to 20 μm is suited for use as high-voltage electric insulator since it maintains insulating properties for a long term in outdoor service and has acid resistance and a long lifetime even in polluted areas.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.