U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Process for preparing plastic coated metal powders

Patent 3935340 Issued on January 27, 1976. Estimated Expiration Date: Icon_subject January 27, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3068185

3185589

3448073

3468828

3519594

3526533

3533835

3547822

3635752

3657144

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Inventors

Assignee

Application

No. 05/421321 filed on 12/03/1973

US Classes:

427/216, Metal base427/221, Resin, rubber, or hardenable oil containing coating428/407Including synthetic resin or polymer

Examiners

Primary: Martin, William D. Jr.
Assistant: Konopacki, Dennis C.

Attorney, Agent or Firm

International Class

B22F 1/02 (20060101)

Foreign Application Priority Data

1972-12-04 JA

Abstract

Metal powder is suspended in an aqueous medium containing a radical-polymerizable monomer and polymerization is conducted in the presence of an acidic sulfite ion to produce a plastic coated metal powder which is effectively used for forming conductive plastics, molded articles for sintering, pressed powder magnetic cores and the like.

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