Method of preparing spherical moldings
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United States of America Patent
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Aug 11, 1998
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app pub date -
May 3, 1996
filing date -
Sep 21, 1994
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Abstract
A method which makes it possible to simultaneously injection-mold a number of spherical moldings without causing increase of runner loss, and is a method of preparing spherical moldings by coupling molding forming parts with each other through a bridge of 0.1 to 10 mm.sup.2 in sectional area for feeding molten resin, arranging a structure in which a plurality of molding forming parts are coupled with each other through the aforementioned bridge with respect to one gate, and performing molding, thereby obtaining a sphere series in which a plurality of spherical moldings are coupled with each other through a bridge part.
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