Alpha Technologies Services, Inc.

Andrew Grow

Keith Buzek

Henry Pawlowski

A rheometer die with a groove configuration for reducing sample slippage in a rheometer chamber is provided. The rheometer die includes a surface and at least one radial groove extending into the surface. The groove defines at least a portion of a sample-holding chamber constructed to hold a sample. The groove may include a first zone and a second zone with a transition zone therebetween. The groove may also include a substantially wedge-shaped portion with sidewalls which taper generally towards the center of the rheometer die such that imaginary extensions of the sidewalls intersect before reaching the center of the die. A plurality of grooves may extend into the rheometer die. The rheometer die may be incorporated into a rheometer for testing process characteristics of a material.

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Mogadore, OH, United States of America

Andrew Grow