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Philadelphia Society meeting examines novel technologies.

At the March meeting of the Philadelphia Society, three presentations introduced innovative technologies and processes used in the manufacture of coatings.

"Statistical Experimental Design to Optimize Products and Processes"--John D. Guerin, Contract Consultant, Stat-Ease, Inc.

Dr. Guerin reviewed statistical experimental design, a technique for experimentation that allows the investigator to simultaneously determine the effects of several factors on the output of a process or the properties of a product. He showed how individual effects of each factor as well as its interaction with other factors can be calculated and compared to experimental error.

The speaker discussed how popular experimental design and analysis software packages are used to lay out the experiment, analyze the results, and graphically demonstrate the conclusions. This approach can be applied to the study of process variables such as time, temperature, stir-rate, etc., to develop factorial or response surface designs. Dr. Guerin concluded with a demonstration of the use of a response surface design in the optimization of real world problems such as polymerization processes where the objective is to maximize conversion and to simultaneously meet a specific activity requirement for the finished product.

"Vision-Based On-line Process Control"--J.M. Canty, J.M. Canty, Inc.

Mr. Canty introduced his company's line of vision-based on-line control systems. The heart of this system utilizes digital camera technology to measure various properties of products. Various designs exist that are capable of placing a lens within the processing chamber. System design allows for operation at high pressures and temperatures. The camera does not focus within the liquid stream, but instead on the surface of the lens. The system has been utilized in numerous industries to measure properties such as particle size, shape, color, and turbidity. According to Mr. Canty, various illumination methods are employed to extend the function of the unit.

"PSI-Mixing In-line Dispersing Technology"--Harry Way, Netzsch, Inc.

Mr. Way introduced the [psi]-Mix[c] for dispersion and dissolution of powders into liquids. The PSI mix marries several technologies in producing this powder mixing system. Powder is charged to a hopper on the top of the machine. The powder is metered into a closed chamber via a rotary valve. Material is circulated from a storage tank through the PSI mix. Material flows through a venture to produce vacuum. Powder is drawn into the stream and mixed with a patented rotor assembly. Material is returned to the tank and the process continues. The technology is intended to be used as a replacement to high speed dispersion technology.
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Title Annotation:Society News
Publication:JCT CoatingsTech
Geographic Code:1USA
Date:May 1, 2006
Previous Article:ICE 2006 list of exhibitors: as of April 7, 2006.
Next Article:Philadelphia Society Technical Symposium to explore nanotechnology for coatings.

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