Metal working – Method of mechanical manufacture – Electrical device making
Patent
1988-01-21
1990-08-28
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
338 25, H05B 300
Patent
active
049513842
ABSTRACT:
Conductive polymer PTC compositions have improved properties, especially at voltages of 200 volts or more, if they are very highly cross-linked by means of irradiation, for example to a dosage of at least 50 Mrads, preferably at least 80 Mrads, e.g. 120 to 600 Mrads. The cross-linked compositions are particularly useful in circuit protection device and layered heaters.
REFERENCES:
patent: 2759092 (1956-08-01), Fortin
patent: 2777044 (1957-01-01), Lytle
patent: 3243753 (1966-03-01), Kohler
patent: 3311862 (1967-03-01), Rees
patent: 3351882 (1967-11-01), Kohler et al.
patent: 3448246 (1969-06-01), Armbruster
patent: 3535494 (1969-10-01), Armbruster
patent: 3858144 (1974-12-01), Bedard et al.
patent: 3861029 (1975-01-01), Smith-Johannsen et al.
patent: 4177376 (1979-12-01), Horsma et al.
patent: 4238812 (1980-12-01), Middleman et al.
patent: 4239608 (1980-12-01), Pantelis
patent: 4277673 (1981-07-01), Kelly
patent: 4286376 (1981-09-01), Smith-Johannsen et al.
patent: 4323875 (1982-04-01), Tentarelli et al.
patent: 4334351 (1982-06-01), Sopory
A. Charlesby, "Atomic Radiation and Polymers", Pergamon Press, 1960.
Doljack Frank A.
Jacobs Stephen M.
McTavish Mary S.
Burkard Herbert G.
Echols P. W.
Gerstner Marguerite E.
Raychem Corporation
Richardson Timothy H. P.
LandOfFree
Method of making a PTC conductive polymer electrical device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making a PTC conductive polymer electrical device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a PTC conductive polymer electrical device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1580481