The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1993
Filed:
Feb. 21, 1991
Applicant:
Inventors:
Takayuki Nakamura, Hirakata, JP;
Tadashi Chiba, Hirakata, JP;
Assignee:
C. Uyemura & Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
427437 ; 4274431 ; 106-127 ;
Abstract
A composite film consisting of particles of fibers dispersed in a metal matrix and formed by electroless deposition can be improved in appearance and particle or fiber content by adding a water-soluble amine or ammonium salt to the electroless plating bath. Preferably the bath contains a water-soluble nickel or cobalt salt, a hypophosphite reducing agent, a chelating agent for chelating the nickel or cobalt ion, a surface active agent, water-insoluble particles or fibers typically of polytetrafluoroethylene, and the water-soluble amine or ammonium salt.