Patents by Inventor Ionel Halaciuga

Ionel Halaciuga has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the surface modification of a polymer particle
    Patent number: 9840762
    Abstract: A process for the preparation of an activated polymer particle comprising contacting a polymer particle with at least one polyamine, wherein said polyamine has three or more amino groups, to form a surface treated polymer particle; and applying a catalyst to the surface treated polymer particle to form an activated polymer particle. In some examples, the process can further comprise applying a metal coating to said activated polymer particle to form a metal coated polymer particle.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: December 12, 2017
    Assignee: Conpart AS
    Inventors: Keith Redford, Ionel Halaciuga, Dan V. Goia, Cathrine Braein Nilsen
  • PROCESS FOR THE SURFACE MODIFICATION OF A POLYMER PARTICLE
    Publication number: 20130277623
    Abstract: A process for the preparation of an activated polymer particle comprising contacting a polymer particle with at least one polyamine, wherein said polyamine has three or more amino groups, to form a surface treated polymer particle; and applying a catalyst to the surface treated polymer particle to form an activated polymer particle.
    Type: Application
    Filed: October 28, 2011
    Publication date: October 24, 2013
    Applicant: CONPART AS
    Inventors: Keith Redford, Ionel Halaciuga, Dan V. Goia, Cathrine Braein Nilsen
  • Preparation of silver spheres by the reduction of silver polyamine complexes
    Patent number: 8292986
    Abstract: Dispersed uniform spherical silver particles were prepared in the absence of a protective colloid by rapidly mixing concentrated iso-ascorbic acid and silver-polyamine complex solutions.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: October 23, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Daniel V. Goia, Ionel Halaciuga
  • Method for producing dispersed, crystalline, stable to oxidation copper particles
    Patent number: 8216340
    Abstract: Dispersed, crystalline, stable to oxidation copper particles are prepared in the absence of polymeric dispersants by rapidly reducing a Cu(I) salt with an Fe(II) carboxylic acid complex in water. The resulting microns sized copper powders contain only organics which decompose at temperatures low enough not to interfere with sintering processes and the formation of conductive copper structures.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: July 10, 2012
    Assignees: E. I. du Pont de Nemours and Company
    Inventors: Daniel V. Goia, Ionel Halaciuga, Sylas LaPlante, Howard David Glicksman
  • METHOD FOR PRODUCING DISPERSED, CRYSTALLINE, STABLE TO OXIDATION COPPER PARTICLES
    Publication number: 20100224027
    Abstract: Dispersed, crystalline, stable to oxidation copper particles are prepared in the absence of polymeric dispersants by rapidly reducing a Cu(I) salt with an Fe(II) carboxylic acid complex in water. The resulting microns sized copper powders contain only organics which decompose at temperatures low enough not to interfere with sintering processes and the formation of conductive copper structures.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 9, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniel V. Goia, Ionel Halaciuga, Sylas Laplante, Howard David Glicksman
  • PREPARATION OF SILVER SPHERES BY THE REDUCTION OF SILVER POLYAMINE COMPLEXES
    Publication number: 20090071292
    Abstract: Dispersed uniform spherical silver particles were prepared in the absence of a protective colloid by rapidly mixing concentrated iso-ascorbic acid and silver-polyamine complex solutions.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 19, 2009
    Applicant: E. I. du Pont de Nemours and Company
    Inventors: DANIEL V. GOIA, Ionel Halaciuga