Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1988-01-19
1988-12-06
Van Balen, William J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
174110F, 264 459, 4283186, 4283188, 4283197, 428375, 428376, 428379, 428383, 428398, B32B 108, B32B 326, B29C 4706, H01B 700
Patent
active
047895896
ABSTRACT:
A conductor wire with an inner layer of insulation of cellular polyolefin compound and an outer layer of polyvinylchloride. The polyvinylchloride includes a material compatible with the polyolefin and which bonds to the polyolefin to bond the layers together. The compatible material may be chlorinated polyethylene. In the insulated structure, the inner layer has a substantially continuous skin which is bonded to the outer layer. In a method of forming the insulation, the inner layer is maintained as a non-cellular structure which the outer layer is extruded onto it. This provides unbroken opposing surfaces of the layers which are bonded together and the integrity of the surface of the inner layer is maintained as the layer is formed into a cellular structure.
REFERENCES:
patent: 4037020 (1977-07-01), Ishii et al.
patent: 4093414 (1978-06-01), Swiatovy, Jr.
patent: 4310597 (1982-01-01), Checkland
patent: 4547328 (1985-10-01), Yuto et al.
Austin R. J.
Northern Telecom Limited
Van Balen William J.
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