Welcome to
Wildi Compounding Tech.,LLC

Offering Plastics Compounding Consulting Services

Per Diem or Long Term Contract.
References Available on Request.

Improve your Compounding:

Increased Rates
Improved Quality
Product Consistency
Multiple Products/Line

The Compounding Process is very important to the plastics industry. For plastics producers, it is usually the last operation before packaging and shipping to the processors who form the parts that the consumer sees/uses. Compounding is sometimes combined with the final forming process.

Let Bob Wildi work with your compounding teams and operations to improve and/or develop new processes. His broad experience includes all major classes of equipment used in the Compounding Industry. Contributions can range from working with your project management team; to screw design improvements; to participating in trials; to trouble shooting processes on line.

Example Consulting Services

• Development Programs.
• Process Optimization.
  .... Product Quality.
  .... Rates.
  .... Screw Design.
  .... Feed Systems.
  .... Preblending.
• Piloting and Scale Up of New Processes and Products.
• Screw Design and Vendor trials.
• Process Specifications.
• Start-Up.
• Reactive Processes.
• Compounding Training Programs.
  .... Process Development.
  .... Pre-Compounding Operations.
  .... Unit Operations
  .... Overview of Compounder Types.
  .... Evaluation of Compounders.
  

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About Bob Wildi:

Bob Wildi is President of Wildi Compounding Tech, LLC and is a West Virginia University College of Chemical Engineering Adjunct Professor. He recently retired from GE Plastics where he was Principal Engineer - Compounding Technology. He has a total of 33 years industrial experience in Process Development related activities including Start-up and Manufacturing support. The last 22 years were focused on Compounding Processes. He has 4 US Patents re Reactive Extrusion. He and Dr. Christian Maier co-authored the Hanser book UNDERSTANDING COMPOUNDING.

See below for more Details.

Training:

The presentations described below are available and can be coupled for a full day compounding training program at your site. Others can be put together as needed.

Presentation Abstract:

This 2 hr presentation or 4 hr training session is based on Chapter 4 of the Hanser book "Understanding Compounding" by Wildi and Maier. The six most common Compounding Unit Operations are discussed: Solids Conveying; Melting; Mixing; Reactions; Venting; and Pressure Generation. Topics for each Unit Operation include: What It Is; How It Is Done; and Controlling Mechanisms. The presentation focuses specifically on these Operations in Co-Rotating, Fully Intermeshing TSE Compounding Processes. Examples of this class of compounders include the W&P ZSK, the Leistritz ZSE GL, and the Berstorff ZE machines.

Details About Bob Wildi

• Current Status:
  • President Wildi Compounding Tech., LLC.
    • Offering Consulting Services.
    • Per Diem or Long term contract
  • Adjunct Professor, WVU College of Chemical Engineering.
  • Retired from GE Plastics June,'99.
    • Principal Engineer, Compounding Technology.

• Education:
  • BChE from Fenn College/Cleveland State University in 1966.
  • ~ 1/2 of required credits for Masters in ChE at Ohio U. (nights).
  • Numerous CEUs from Short Courses and Seminars.

• Experience:
  • 32 years Total Process Development Experience.
  • 20 years Compounding Process Development.
  • New polymers and Alloys.
  • Vendor Trials.
  • Process Specifications for New Facilities.
  • Start Up of New Compounding Processes.
  • Scale Up of New Products to Production.
  • Trouble Shooting.
  • Optimization.
  • Filled Products.
  • Reactive Extrusion.
  • All Major Classes of Compounders.
  • K W&P Mega ZSK Compounders
  • Preblending & Mixing Processes
  • Feeders.
  • Devolatilization and Vacuum Processes.
  • Pelletizers.
  • Supported GE & Borg-Warner's Profile Extrusion Customers.
    • Worked with/via Tech. Service Engineers
  • SSE Screw Design.
  • Prepared and Led Training Sessions.
    • Both Technicians and Professionals.
  • Mentor New Professionals in Compounding.

• Professional:
  • (5) US Patents.
    • Four in Reactive Extrusion.
  • SPE:
    • Member since '81.
    • Board of Directors SE Ohio Section since '94.
    • President SE Ohio Section - '99/'00.

• Publications:
  • Book, UNDERSTANDING COMPOUNDING.
  • Published by Hanser, 1998, ISBN 1-56990-228-3
  • Co-authored with Christian Maier.
  • Equipment Options and Principals of Compounding.
    • Minimal Math
    • Primmer and Reference Book.
  • Excellent Reviews.

Copyright © 2000, 2001 Robert H. Wildi. All rights reserved.
Revised: November 08, 2003.