Method of obtaining electroless nickel coated filled epoxy resin

Details Method of obtaining electroless nickel coated filled epoxy resin Method of obtaining electroless nickel coated filled epoxy resin

1977-05-23

1978-09-12

Smith, John D.

Coating processes

With cutting, holding, severing, or abrading the base

Prior to coating

427203, 427205, 427305, 427306, 427307, 427430A, 427438, 264129, 264232, C23C 302

Patent

active

041138996

ABSTRACT:
Electroless nickel coating of epoxy resin foundry patterns and core boxes can be carried out without a palladium chloride/stannous chloride activation of the surface, if the pattern or core box contains a high density of metal particles which act as "keying" sites, and if the metal-filled resin surface is properly prepared. The preparation steps include a very light abrading with a fine (minus 60 U.S. mesh and preferably even finer) grit and a very brief acid pickling step. The electroless-plated article has a continuous coating of nickel bonded essentially directly to the resin through the metallic "keying" sites.

REFERENCES:
patent: 2690401 (1954-09-01), Gutzeit et al.
patent: 3226256 (1965-12-01), Schneble, Jr. et al.
patent: 4059710 (1977-11-01), Nishiyama et al.

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