William Brasch

US Patent:

RE355135, May 20, 1997

Filed:

Apr 10, 1996

Appl. No.:

8/633271

Inventors:

Fred I. Nobel - Sands Point NY
William R. Brasch - Nesconset NY
Anthony J. Drago - East Islip NY

Assignee:

Learonal, Inc. - Freeport NY

International Classification:

C25D 338

US Classification:

205263

Abstract:

A solution for use in electroplating which comprises at least one monovalent metal such as copper, silver or gold which is complexed by a thiosulfate ion; and a stabilizer of an organic sulfinate compound such as, for example, one having the formula R-SO. sub. 2 -X wherein R is an alkyl, heterocyclic or aryl moiety and X is a monovalent cation. The stabilizer is present in an amount sufficient to stabilize the thiosulfate ion when the solution is operated at an acidic pH of less than 7. Also, the solution is substantially free of cyanide.

US Patent:

43990061, Aug 16, 1983

Filed:

Jul 19, 1979

Appl. No.:

6/059116

Inventors:

Fred I. Nobel - Sands Point NY
William Brasch - Commack NY

Assignee:

LeaRonal, Inc. - Freeport NY

International Classification:

C25D 346
C25D 510
C25D 534

US Classification:

204 29

Abstract:

The invention relates to silver plating utilizing low cyanide or non-cyanide silver plating baths by treating the substrate to be plated with a mercaptan and to low cyanide or non-cyanide baths containing a bath soluble mercaptan in a sufficient amount to eliminate or effectively reduce immersion plating of the silver onto the substrate.

US Patent:

55229727, Jun 4, 1996

Filed:

Jul 19, 1994

Appl. No.:

8/277339

Inventors:

Fred I. Nobel - Sands Point NY
William Brasch - Nesconset NY
Donald Thomson - Northport NY
Luis H. Garay - Rockville Centre NY

Assignee:

LeaRonal, Inc. - Freeport NY

International Classification:

C25B 100

US Classification:

205488

Abstract:

A method for preparing nickel hypophosphite by contacting a nickel anode with a solution of hypophosphite anions and applying a current through the anode to a counter-electrode in contact with the solution to anodically dissolve the nickel of the anode into the hypophosphite solution, thereby forming a nickel hypophosphite solution. A one-compartment electrolysis cell and a three-or-more-compartment electrodialysis cell embodying the method of the invention are described.

US Patent:

54805171, Jan 2, 1996

Filed:

Sep 16, 1994

Appl. No.:

8/307923

Inventors:

Fred I. Nobel - Sands Point NY
William Brasch - Nesconset NY
Donald Thomson - Northport NY
Luis H. Garay - Rockville Centre NY

Assignee:

LeaRonal Inc. - Freeport NY

International Classification:

C25B 122

US Classification:

204103

Abstract:

Methods for preparing hypophosphorous acid are disclosed comprising contacting an insoluble anode with an aqueous solution of hypophosphite anions and applying a current through the insoluble anode to a cathode in electrical contact with the aqueous solution to generate H+ ions in the aqueous solution thereby forming a hypophosphorous acid solution.

US Patent:

53022785, Apr 12, 1994

Filed:

Feb 19, 1993

Appl. No.:

8/019949

Inventors:

Fred I. Nobel - Sands Point NY
William R. Brasch - Nesconset NY
Anthony J. Drago - East Islip NY

Assignee:

Learonal, Inc. - Freeport NY

International Classification:

C25D 338

US Classification:

205296

Abstract:

A solution for use in electroplating which comprises at least one monovalent metal such as copper, silver or gold which is complexed by a thiosulfate ion; and a stabilizer of an organic sulfinate compound such as, for example, one having the formula R-SO. sub. 2 -X wherein R is an alkyl, heterocyclic or aryl moiety and X is a monovalent cation. The stabilizer is present in an amount sufficient to stabilize the thiosulfate ion when the solution is operated at an acidic pH of less than 7. Also, the solution is substantially free of cyanide.

US Patent:

42473721, Jan 27, 1981

Filed:

Aug 29, 1978

Appl. No.:

5/937849

Inventors:

Fred I. Nobel - Sands Point NY
William Brasch - Commack NY

Assignee:

LeaRonal, Inc. - Freeport NY

International Classification:

C25D 346
C25D 502
C25D 508

US Classification:

204 15

Abstract:

The invention relates to silver plating utilizing low cyanide or non-cyanide silver plating baths by treating the substrate to be plated with a mercaptan and to low cyanide or non-cyanide baths containing a bath soluble mercaptan in a sufficient amount to eliminate or effectively reduce immersion plating of the silver onto the substrate.

US Patent:

42333440, Nov 11, 1980

Filed:

Jul 20, 1978

Appl. No.:

5/926392

Inventors:

William Brasch - Commack NY

Assignee:

LeaRonal, Inc. - Freeport NY

International Classification:

C23C 302

US Classification:

427304

Abstract:

The present invention relates to a method for promoting and improving the adhesion of an electroless metal deposit to the metal surface of a composite substrate having both a conductive metal area and an activated non-conductive surface. The process comprises treating such a substrate, subsequent to catalyzation or activation of the substrate, and prior to electroless metal deposition thereon, with an adhesion promotor compound or mixture of compounds.