Electrical insulation and products protected thereby
US5721397A · kind A · utility
Inventor
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flexible, tough electrical insulation is described for use in electric motors, generators, hermetic motors, transformers, and other electrical devices. The insulation described herein includes a layer of a cyclohexylene dimethylene terephthalate polymer (PCT), or one or more copolymers thereof. The PCT layer can be used in a film or in a nonwoven mat form, by itself, or alternatively, as a component of a laminate. The insulation can take the form of an insulating tape, an insulating sheet, an electric motor slot liner, motor wedges, or as some other die-cut insulating component. The insulation and products protected by the insulation can be used in a broad range of service application temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.