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US 4,598,037 AGranted
Photosensitive conductive metal composition
AssigneeE. I. Du Pont de Nemours and Company
InventorJohn J. Felten
Life of this patent
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Abstract
A photosensitive conductive metal coating composition which is fireable in a weakly oxidizing atmosphere comprising an admixture of a. Smooth finely divided particles of conductive metal, and b. Finely divided particles of cadmium-containing lead aluminosilicate glass, dispersed in a solution of c. Acrylic polymer binder d. Volatile plasticizer, e. A photoinitiation system, and f. Photohardenable monomer.
Claims4
A photosensitive conductive metal coating composition which is fireable in a weakly oxidizing atmosphere comprising an admixture of:
- a. Smooth finely divided particles of conductive metal, at least 80% wt. of which (1) have an aspect ratio of no more than 2 and (2) have a particle size of 2-6 .mu.m, and
- b. Finely divided particles of cadmium-containing lead aluminosilicate glass having a softening point of 500.degree.-600.degree. C., at least 80% wt. of which have a particle size of 2-6 .mu.m, the admixture of a. and b. being dispersed in a solution of
- c. Acrylic polymer binder,
- d. Volatile plasticizer,
- e. A photoinitiation system and
- f. Photohardenable monomer having at least one addition-polymerizable ethylenically unsaturated group, the plasticizer comprising from 10 to 30% wt. of the polymeric binder and the monomer comprising from 20 to 33% wt. of the polymeric binder.
3 more elements
Dependencies are inferred from the claim text.