RICHARD L WIEDEMAN
Broker in Marlboro, MA
License number
Massachusetts 112573
Issued Date
Aug 1, 1979
Expiration Date
Mar 13, 2018
Type
Broker
Address
Address
Marlboro, MA 01752
Professional information
Deposition Of A Conductive And Protective Coating On A Metallic Substrate
US Patent:
5043226, Aug 27, 1991
Filed:
Apr 24, 1989
Appl. No.:
7/341995
Inventors:
Richard L. Wiedeman - Marlboro MA
Kenneth W. Mamayek - Avon MA
Henry B. Gordon - Shrewsbury MA
Mohan L. Sanduja - Flushing NY
Kenneth K. Sugathan - Piscataway NJ
Felicia Dragnea - Forest Hills NY
Carl Horowitz - Brooklyn NY
Kenneth W. Mamayek - Avon MA
Henry B. Gordon - Shrewsbury MA
Mohan L. Sanduja - Flushing NY
Kenneth K. Sugathan - Piscataway NJ
Felicia Dragnea - Forest Hills NY
Carl Horowitz - Brooklyn NY
Assignee:
Digital Equipment Corporation - Maynard MA
International Classification:
B32B 1508, B32B 2700
US Classification:
428461
Abstract:
A method of grafting a conductive, tenacious, and protective coating on a metallic substrate. The metallic substrate, such as steel, aluminum, iron, platinum, silver, nickel, gold, cobalt, copper, copper alloys, or combinations thereof, is contacted with a composition having: (i) one or more polymerizable monomers having at least two functionalities; (ii) one or more graft initiators containing nickel ion in an amount effective to initiate the graft polymerization of the monomers; and (iii) a reducing agent capable of reducing nickel ion to nickel metal. The composition and substrate are heated for a time and at a temperature effective to graft polymerize the monomers and nickel metal onto the substrate and form a conductive, tenacious, and protective coating bonded to the substrate. The coating can also contain elemental phosphorous. Preferably, the coated substrate has a surface resistivity of less than 0.