Automotive-wire insulation
First Claim
1. A composite article for use in harsh, automotive, under-the-hood environments, comprising at least one metal core having an exposed surface, a first polymeric layer comprising a fluorocarbon polymeric material disposed on said exposed surface, a second polymeric layer comprising a polyolefin disposed on said first polymeric layer, and a third polymeric layer comprising a first fluorinated polyolefin disposed on said second polymeric layer, and wherein at least one layer selected from said first polymeric, said second polymeric, and said third polymeric layers is oxidation resistant.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention pertains to multi-layer polymeric formulations for protecting or insulating metallic objects, and, more particularly, to an integrated, tri-layer, thin-wall insulation composite, for use in a high temperature, automotive-wire article. The tri-layer design comprises an inner layer of a fluoropolymer, polyether sulfone, polyether-ketone, polyetherimide, or thermoplastic polyester; a middle layer comprising a polyolefin; and an outer layer comprising a fluoropolymer. The inner and outer layers serve to protect the middle polyolefinic layer from degradation.
92 Citations
37 Claims
- 1. A composite article for use in harsh, automotive, under-the-hood environments, comprising at least one metal core having an exposed surface, a first polymeric layer comprising a fluorocarbon polymeric material disposed on said exposed surface, a second polymeric layer comprising a polyolefin disposed on said first polymeric layer, and a third polymeric layer comprising a first fluorinated polyolefin disposed on said second polymeric layer, and wherein at least one layer selected from said first polymeric, said second polymeric, and said third polymeric layers is oxidation resistant.
-
36. A high-temperature, automotive-wire article having an operative temperature exceeding that of at least 145°
- C., comprising;
an uncoated copper core; and
an integrally bonded composite insulation disposed over said uncoated copper core, comprising a fluorocarbon material forming an inner layer surrounding said copper core, a polyethylene material forming an intermediary layer disposed over said inner layer, and a second fluorocarbon material forming an outer layer disposed over said intermediary layer, said integrally bonded composite insulation having a total wall thickness of less than approximately 0.5 mm and an operative temperature exceeding 145°
C.- View Dependent Claims (37)
- C., comprising;
Specification