Expertise

• Synthesis of novel and existing high performance pigments (HPPs)
• Synthetic process development of a variety of pigment types
• Solid solution chemistry; intrafamily and interfamily solid solution formation and utilization of the consequent property advantages
• Methods of particle size reduction and particle size control
• Effective surface treatment of pigments for enhancement of rheological and dispersibility properties
• Stabilization of small size particles dispersions by effective inhibition of particle growth
• Utilization of analytical methods such as electronmicroscopy, X-ray diffraction, surface measurement and various spectra determination for solving research and production problems.

Professional Skills

• Hands on experience in an organic chemistry laboratory.
• Developer of new and modified pigments as required by market demand.
• Utilization of a variety of synthetic approaches and analytical techniques in solving research and manufacturing problems.
• Close collaboration with pigment evaluation laboratories to achieve reliable results
• Experience in scaling up laboratory developments to a pilot plant and to a commercial manufacturing scale
• Filing patents when justified and assisting attorneys in successful prosecution of patent cases, including expert witness.

Experience

Independent Consultant, 1995 - Present

Ciba-Geigy, Later Ciba Specialty Chemicals

• Vice President of Research of the US Pigments Division, 1988
• Director of R&D, 1987
• Distinguished Research Fellow, 1984
• Provided scientific and technical leadership and devised the Research and Development programs within the Division.

DuPont De Nemours 1957-1984, Working as a Senior Research Fellow when business was sold to Ciba.

• Involved in the discovery and development of quinacridones, that remain an important and highly valued set of HPPs.
• Helped with the quinacridones pigment line extension by specific aromatic substitution and solid solution formation, ranging in color from violet, magenta, red, maroon, scarlet and golden yellow.
• Surface treatment of these and other pigments to improve their theological characteristics in paints an inks to lessen their environmental impact.
• Modification of other pigment classes for specific applications for the automotive and other industries.

Honors & Publications

Over a life long career, the consultant has been granted 67 US patents and more than 300 international patents. He has published wildly and given many professional papers. Selected areas patented and written about are:

• Origin of Color in Organic Compounds
• Synthesis of epindolidione, and diquino and derivatives of epindolidione.
• Rheologically effective organic pigments in coatings and inks.
• High performance pigments, including theory, chemistry, formulations and use.
• Quinacridone Pigments
• Process for making solid solutions and novel compositions based on Indanthrone Blue Pigments.
• Finishes containing light interference pigments.

Education

• Ph.D. Organic Chemistry, New York University
• MS Organic Chemistry, New York University
• BS Chemistry, City College of New York