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LOW-LEACHING TYPE COMPOSITION CURED WITH ULTRAVIOLET LIGHT AND HAVING AFTER CURING MECHANISM
LOW-LEACHING TYPE COMPOSITION CURED WITH ULTRAVIOLET LIGHT AND HAVING AFTER CURING MECHANISM
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机译:紫外光导致的低沥滤型组合物,并且在发生机理后仍具有
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摘要
PURPOSE: To obtain an ultraviolet-curable composition which can give low- leaching cured compositions, which composition essentially consists of a specified acrylated urethane oligomer, a specified filler and a plurality of specified compounds in a specified ratio. ;CONSTITUTION: This composition essentially consists of 100 pts.wt. aliphatic isocyanate based acrylated urethane oligomer having 2-3 acryloyl groups on the average per molecule and selected from (meth)acrylate (e.g. Ebecry 18800, a product of Rad; cure Specialties Co.), 50-60 pts.wt. hydroxypropyl methacrylate, 3.0-3.5 pts.wt. hydroxymethylphenylpropanone, 1.9-2.1 pts.wt. 1,1-bis(t-butylperoxy) cyclohexane and 11-12 pts.wt. amorphous silica filler having a surface area of 150-300 m2/g.;COPYRIGHT: (C)1992,JPO
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