Patent ID: 6559939
Filing Date: 2003-05-06
Classification: B01J,B01L,B05D,C07B,C09J,C40B,G01N

Abstract:
A high throughput method for efficiently screening arrays of materials for haze, comprising the steps of:forming a series of material receiving receptacles or wells by providing a substrate and an overlying apertured sheet with said apertured sheet in tight sealing engagement with said substrate; applying different materials into said receptacles; placing said substrate with said material receiving receptacles thereon in a centrifuge; activating said centrifuge with said receptacles mounted therein to flatten said materials in said receptacles; removing said overlying apertured sheet to leave said materials exposed on said substrate, thus forming said array; providing a target comprising a background and indicia disposed thereon; determining the contrast between said background and indicia when viewed directly, as well as through a haze calibration film, to calculate a haze calibration factor; determining the contrast between said background and indicia when viewed through said materials disposed upon said substrate, as well as when viewed solely through said substrate; and determining the haze of said materials utilizing said calibration factor and contrasts as determined for said background and indicia when viewed through said materials disposed upon said substrate as well as when viewed solely through said substrate.