Heat-shrinkable articles having non-linear electrical resistance characteristics
AssigneeRaychem Corporation
InventorRichard J. Penneck
Life of this patent
Estimating the term…
Abstract
A polymer composition containing silicon carbide of a critical maximum average particle size can be processed into heat-shrinkable articles possessing nonlinear electrical resistance characteristics. An embodiment of the invention provides a heat-shrinkable article comprising a laminate of a layer of elastomer, including silicon carbide particles, and a layer of a heat-shrinkable polymeric material. The elastomeric layer may be a blend of a rubbery polymer and a low density polyethylene having dispersed therein particulate silicon carbide of particle size finer than about 300 grit.
Claims15
A heat-shrinkable article possessing nonlinear electrical resistance characteristics comprising a laminate of:
- a first layer of an elastomer having dispersed therein particulate silicon carbide;
- and
- a second layer of a heat-shrinkable polymeric material.
The article of claim 11, wherein said particulate silicon carbide is about 300 grit size or finer.
An article capable of being rendered heat-shrinkable and possessing non-linear electrical resistance characteristics comprising of a laminate of:
- a first layer of an elastomer having dispersed therein particulate silicon carbide;
- and
- a second layer of polymeric material capable of being rendered heat-shrinkable.
Dependencies are inferred from the claim text.