Method of evaluating adhesion property, low-adhesion...

Details Method of evaluating adhesion property, low-adhesion... Method of evaluating adhesion property, low-adhesion...

2005-03-03

2009-11-10

Caputo, Lisa M (Department: 2855)

Measuring and testing

Coating material: ink adhesive and/or plastic

Reexamination Certificate

active

07614293

ABSTRACT:
A mold surface of an upper mold with which a fluid resin comes into contact has an oxide therein. The oxide contains a metal cation and an ion. Field strength is calculated based on a valence of the metal cation and ionic radius of the ion. Based on predetermined relationship established between a value of the field strength and adhesion strength between a cured resin and the mold surface, releasability between the cured resin and the mold surface is evaluated. Thereby, a method of evaluating releasability between the cured resin and the mold surface is established. With this evaluation method, a material with high releasability can readily be provided. Further, if the material with high releasability is used for the mold surface of the upper mold, a mold for molding a resin having excellent releasability can be obtained.

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