To satisfy the target properties of adhesives, we had developed a novel material design system (weak conditioned combinatorial linear programming (WCCLP) and user friendly software) which is effective to search the combination of a well-balanced material. In the actual process of material development, the target properties are not always clear. In such cases, WCCLP is useful to find target properties and optimization of properties. For dimension reduction of properties/formulation matrix, we introduce matrix for judgment and valuation function and algorism. By these methods, we can judge the possibility of dimension reduction.
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