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 Expert  107892

Expert in Coating and Drying Technology


Available for your Consulting and Expert Witness Needs

Massachusetts (MA)
USA
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert has expertise in slot coating and slide coating. He has given seminars on coating and drying at a number of client companies. Topics include premetered coating, roll coating, coating die design, fluid preparation, surface forces in coating, limits of coatability, hydrodynamic instabilities, drying, coating and drying defects, and static electricity. He organized the coating and the coating defects courses at the biennial AIChE Coating Symposia (he organized the first symposium). He gives the coating course in alternate years at the University of Minnesota. He co-authored "Coating and Dying Defects" (1995) and co-edited "Modern Coating and Drying Technology" (1992). He is also knowledgeable in curtain coating, gravure coating, reverse and forward roll coating, Mayer rod coating, dip coating, and fiber and wire coating.
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film coating process

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slot coating

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slide coating

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curtain coating

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coating drying

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hot-air coating drying machine

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coating

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coating technology

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web coating process

For solvent and aqueous coatings on continuous webs, Expert developed spreadsheets to predict the temperatures and solvent levels in the coating throughout the constant and falling rate periods, including the initial transients. The spreadsheets can handle mixed solvents and infra-red heaters, and are for both single-sided and flotation dryers. They are successfully used by clients. In addition, he gives seminars on drying.
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continuous drying

Expert co-authored "The Application of Statistical Process Control to Roll Products" (1994). He has taught many company courses and has given seminars on statistical design and analysis of experiments, including Taguchi designs. He applies these techniques to his work on coating and drying.
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roll product statistical process control

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Taguchi method experimental design

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Taguchi method

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analysis of experiments

Expert has designed coating dies for several clients to obtain uniform coverage across the width of the web. He published two papers, on die design, "Simplified Design of Coating Die Internals," and "Comparison of 'Infinite Cavity' and Corrected Designs for Coating Die Internals". These methods are applicable to the internal design of slot, slide, and curtain coating dies.
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coating die design

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drying technology


Show Secondary and Basic Areas of Expertise
Localities:
Expert may consult nationally and internationally, and is also local to the following cities: Boston, Massachusetts;  Worcester, Massachusetts;  Springfield, Massachusetts;  Lowell, Massachusetts;  Cambridge, Massachusetts;  Brockton, Massachusetts;  New Bedford, Massachusetts;  Hartford, Connecticut;  Manchester, New Hampshire;  and Providence, Rhode Island.

Often requested
with this expert:

Web Coating Technology and Process Scale-Up
Web Coating Technology
cGMP Coatings, Pharmaceutical, Dietary Supplements,...
Web Coating Technology

Education:
Year   Degree   Subject   Institution   Honors
1954   Sc.D.   Chemical Engineering   MIT   Sigma Xi
1952   S.M.   Chemical Engineering   MIT  
1951   B.Ch.E.   Chemical Engineering   CCNY   Tau Beta Pi

Work History:
Years   Employer   Department   Title   Responsibilities

1988 to

 

(Undisclosed University)

 


 

Independent Consultant

 

Expert has helped clients get started in slot coating and gravure coating; designed coating dies; developed drying spreadsheets; and teaches seminars on coating and drying technology.

1981 to

 

(Undisclosed University)

 


 

Part-Time Lecturer & Adjunct Professor

 

He taught graduate chemical engineering courses in fluid mechanics, chemical engineering mathematics, and separation processes; he also taught some undergraduate courses.

1960 to 1988

 

Polaroid Corp.

 

R&D

 

Senior Principal Engineer

 

Expert shortened time to production by developing an understanding of wave instabilites in multi-layer coatings. He suggested ways to coat thinner and faster. He developed an improved coating die for off-the-roll coatings. He modeled the drying of photographic coatings to predict dry point. He managed a pilot emulsion and dye dispersion facility during design, construction, and start-up, resulting in on-time start-up with high yields of quality products.

1958 to 1960

 

Ionics, Inc.

 


 

Senior Chemical Engineer

 

He designed and built a pilot facility to test anodic protection of materials for ship hulls, and developed a laboratory-scale fluidized bed to make barium carbide.

1955 to 1958

 

Brown Co.

 

R&D, and later Pulp Production

 

Senior Process Engineer

 

He worked with a consulting engineer on the design of a recovery system for the sulfite pulp mill.


Career Accomplishments:
Associations/Societies

Expert is a member of the American Chemical Society.

Licenses/Certifications

He is a licensed Professional Engineer.

Professional Appointments

Expert chaired the first of the biennial Coating Symposia in 1982. He has been the Secretary of the International Society for Coating Science and Technology from 1997 to the present. He was an abstractor for Chemical Abstracts in French, German, and Russian, from 1966 to 1982.

Awards/Recognition

Expert is a Fellow of the American Institute of Chemical Engineers. In 1994 he received the John A. Tallmadge Award for Contributions to Coating Technology. He received the Society for Imaging Science and Technology Fellow Award in 1994 and the Service Award in 1979. He is a member of Sigma Xi and Tau Beta Pi.


Publications:
Publications and Patents Summary

Expert has three books: Expert and Cohen, Coating and Drying Defects, Wiley-Interscience, 1995. Cohen and Expert, Modern Coating and Drying Technology, Wiley-VCH, 1992. Frost and Expert, The Application of Statistical Process Control to Roll Products, PJ Assoc., 1994. He also has 48 papers including 25 papers on coating and drying.

Selected Publications and Publishers  
 - Drying Technology  
 - Chapt. 14 in J. E. Glass, Expert., Technology for Waterborne Coatings, ACS Symposium Series 663  
 - Journal of Imaging Science and Technology  
 - American Institute of Chemical Engineers (AIChE) Journal  

Consulting Services:
Selected Consulting Examples:
  • Expert designed slot coating dies to give very uniform flow across the web.
  • He designed, helped run, and analyzed factorial experiments that showed clients the optimum conditions for slot coating of magnetic media and for gravure coating.
  • Expert explained causes of a serious coating defect and showed a client how to eliminate the defect by slight changes in the coating die.
  • He explained to clients the causes of skinning during drying, and how to avoid it.
  • Expert presented half- and full-day seminars on coating and drying.
Recent Client Requests:
  • Expert consulting on discrete thin film drying.
  • Coating expert for consulting on preferred type of coating for a formulation and a product.
  • Slot die expert for consulting on developing coating process and die design.
  • Expert in web coating for consulting on alternatives for a chemical addition system.
  • Expert in Wire coating/insulation processes using solvent based systems.
  • Web drying expert for consulting on continuous web drying of emulsion adhesives.
  • Gravure expert for consulting on gravure design.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Expert gave assistance and advice to lawyers in four cases, but did not give any depositions or testify.

Recent Litigation Client Requests:
  • Expert in coating of sand for consulting on process and industry standards.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
1991 to 1993   Japan   Expert helped a company get started in slot coating a new product and designed the die for them.
1992 to 1992   Mexico   He helped a client convert to off-the-roll slot coating of a thin layer at high speeds.
1989 to 1989   Germany   He presented a seminar on coating and drying, discussed the problems they were having, and suggested solutions.

Language Skills:
Foreign Language   Description
French   Expert can read with the assistance of a dictionary.
German   Expert can read with the assistance of a dictionary.
Russian   Expert can read with the assistance of a dictionary.

Additional Skills and Services:
Training/Seminars

He organized a coating course given at the International Coating Symposia 1992-1998 and at the University of Minnesota since 1993. Expert has given half-day on-site seminars at companies and has run 10 Coating and Drying Technology Seminars near Boston since 1996. With colleagues, he has given these seminars at company sites. Expert has also given half- and full-day tutorials on coating and drying at four IS&T Annual Meetings.

Supplier and Vendor Location and Selection

Expert has experience locating vendors of: coating dies, continuous dryers for coated webs, and coating machines. He has access to the following resources: contacts in the coating and drying industries and access to the Thomas Register.


 

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