Compositions – Electrically conductive or emissive compositions – Free metal containing
Patent
1983-08-12
1986-03-25
Clingman, A. Lionel
Compositions
Electrically conductive or emissive compositions
Free metal containing
252502, 252503, 252510, 252511, 252512, 252513, H01B 102
Patent
active
045782156
ABSTRACT:
A material for enhancing the conductivity and protecting electrical contacts, the material having two basic components. The first basic component normally serves to limit corrosion between the contacts and to suspend and suitably distribute the second, or conductive component. This first component, or carrier medium, may be one or more of the following: rosin-derived hard resin, petroleum jelly, petroleum wax and a benzyl phthalate plasticizer for limiting corrosion, effecting adhesion of the material to electrical contacts, and providing body to the material for distributing the conductive component. The second component is an electrically conductive, particulate component such as, for example, metallic silver which enhances the conductivity and actively reduces the resistance by supplying multiple, parallel conductive paths for electrical current flow, filling in surface irregularities in the contacts, and penetrating surface films. The conductive component may be in powder, coarse pigment, or flake form. Upon application to electrical contacts, the present material increases and maintains conductivity at the heightened level.
REFERENCES:
patent: 1914964 (1933-06-01), Van Zale et al.
patent: 2648851 (1953-08-01), Casati et al.
patent: 2758981 (1956-08-01), Cooke et al.
patent: 2844479 (1958-07-01), Miller
patent: 4400214 (1983-08-01), Ogawa et al.
Clingman A. Lionel
Hobbs Marmaduke A.
Micro-Circuits Company
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