`ERRITE/EPOXY FILM
Assignee
Raytheon
Filed as: RAYTHEON COMPANY, A CORP. OF DE
Filed
Mar 17, 1989
Granted
Aug 20, 1996
Location
HOLDEN MA US
Abstract
A composition of ferrite and epoxy having the form of a film which can be cut, pressed onto word straps, and heat-cured to form an encapsulating keeper on a plated wire memory. The film comprises ferrite powder in a mixture of epoxy resins, typically Epon 1009 and Epon 828, pulverized dicyandiamide and butadiene/acrylonitrile rubber. The mixture is sprayed onto a sheet of halogenated polyolefin and air dried for 8-12 hours at between 160° F. and 180° F. The resulting flexible film is die cut to fit over word straps and further processed by applying 50-75 psi at 325° F. for one hour.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 22, 1989
Rescinded
Oct 4, 1993
Duration
4 years
Inventor
- 1AUSTIN A. WOLFREY
Record Details
- Patent number
- US 5547599
- Application
- 07325162
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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