Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Patent
1991-12-11
1993-01-19
Lusignan, Michael
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
338 22SD, 427 58, 427256, 427287, H01C 710, H01C 713
Patent
active
051810069
ABSTRACT:
A polymer thick film ink which exhibits PTC behavior comprising an organic polymer which is crystalline, an active solvent suitable for dissolving the polymer, and carbon black which has a pH of less than 4.0. The ink is particularly useful in producing electrical devices such as heaters and circuit protection devices.
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patent: 4628187 (1986-12-01), Sekiguchi et al.
patent: 4722853 (1988-02-01), Batliwalla et al.
patent: 4818439 (1989-04-01), Blackledge et al.
"Cabot Carbon Blacks for Ink, Paint, Plastics, Paper", Technical Report S-36, Cabot Corporation, May, 1983.
Dharia Amitkumar N.
McCarty Gordon
Oswal Ravinder K.
Shafe Jeff
Straley O. James
Burkard Herbert G.
Gerstner Marguerite E.
Lusignan Michael
Raychem Corporation
Richardson Timothy H. P.
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