| Patent Number |
Title Of Patent |
Date Issued |
| 4659605 |
Electroless deposition magnetic recording media process and products produced thereby |
April 21, 1987 |
| A process for producing a high density magnetic storage device such as a rigid memory disc having improved magnetic recording properties including high coercivity, high remanence and improved hysteresis loop squareness. The device is prepared by initially cleaning the surface of a substr |
| 4632857 |
Electrolessly plated product having a polymetallic catalytic film underlayer |
December 30, 1986 |
| Polyalloy catalytic coating formulations are used for preparing a metallic substrate surface to enhance subsequent plating thereover of nickel, cobalt or polyalloys including nickel or cobalt. At the same time, these catalytic formulations can be rinsed subsequent to their application on |
| 4503131 |
Electrical contact materials |
March 5, 1985 |
| Electrical contact materials are provided which belong to the general category of copper that is overplated with a noble metal, usually gold. The improvement resides in the provision of an electroless nickel deposit laid down over the copper layer and under the gold layer, which elec |
| 4444630 |
Acid bright zinc plating |
April 24, 1984 |
| Acid electroplating baths for bright zinc plating containing a zinc salt, ammonium chloride and bath additives which include a carrier component comprising an alkyl substituted ammonium propoxylate salt, preferably a trialkylammonium propoxylate salt, and a lower molecular weight alkyl |
| 4444601 |
Metal article passivated by a bath having an organic activator and a film-forming element |
April 24, 1984 |
| Substrates, especially those having plated metal surfaces, are subjected to passivation treatments in baths that incorporate one or more film-forming agents at least one of which does not require chromium and includes anions or cations of elements other than chromium. Typically, the anio |
| 4407869 |
Controlling boron content of electroless nickel-boron deposits |
October 4, 1983 |
| The boron content of an electroless nickel-boron deposit is enhanced by including a source of zirconyl ions or vanadyl ions within a borane-reduced bath for laying down the nickel-boron deposit, which bath has a moderate temperature and pH. The deposit laid down has a boron content o |
| 4397812 |
Electroless nickel polyalloys |
August 9, 1983 |
| Electroless, polymetallic nickel alloys containing an element of boron or phosphorus and one or more metals selected from tin, tungsten, molybdenum or copper which have unique properties and are produced as a plated deposit in an electroless nickel plating bath containing an ester comple |
| 4338383 |
Container for a maintenance-free battery |
July 6, 1982 |
| A container for a maintenance-free lead-acid storage battery includes a multi-compartment base wherein individual cells of the battery are contained. An overlying cover in vapor-sealed engagement with the base includes a plurality of integrally-molded filler wells which extend from a |
| 4298404 |
Chromium-free or low-chromium metal surface passivation |
November 3, 1981 |
| Substrates, especially those having plated metal surfaces, and subjected to passivation treatments in baths that incorporate one or more film-forming agents at least one of which does not require chromium and includes anions or cations of elements other than chromium. Typically, the anio |
| 4232060 |
Method of preparing substrate surface for electroless plating and products produced thereby |
November 4, 1980 |
| Polyalloy catalytic coating formulations are used for preparing a metallic substrate surface to enhance subsequent plating thereover of nickel, cobalt or polyalloys including nickel or cobalt. At the same time, these catalytic formulations can be rinsed subsequent to their application on |
| 4229267 |
Alkaline bright zinc plating and additive therefor |
October 21, 1980 |
| An alkaline, electroplating bath for bright zinc plating comprising a source of zinc ions and a bath soluble polymer containing repeating tertiaryaminoalkyl acrylamide groups or quaternary salts thereof. The bath is capable of producing bright, fine grained zinc deposits over a broad |
| 4133685 |
Lithographic plate and photoresist having photosensitive layers of diazo and cinnamoylated poly |
January 9, 1979 |
| A photopolymerizable coating over a diazo resin provides a high-speed lithographic plate or photoresist while improving the printing life of the plate while making its development simpler than that of most other photopolymer plates. The photopolymer is a cinnamoylated polyvinyl alcohol |
