Other

Kenneth B Cuthbert

Robert D Herpst

Method and apparatus for forming thin films by the application of a film forming liquid to a substrate at rest or rotating a speed up to 500 rpm and then rotating the film forming liquid on the substrate at a speed and for a time sufficient to form the thin film. Such films can be used for analysis by spectrophotometric methods. Apparatus for forming such thin films is also disclosed.

Method and apparatus for the production of thin films

Methods and apparatus for forming a film of a liquid material and for employing the film as a test sample for determining properties of the material in a suitable analytical instrument such as a spectrophotometer.

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Quakertown, PA, United States of America

Kenneth B Cuthbert