Method of producing articles from thermo setting resin
AssigneeSafilo S.p.A.
InventorFrancesco Simioni
Life of this patent
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Abstract
The method for producing articles from thermosetting resins, more particularly articles having a complex, variable shape such as spectacle frames, comprising in bottom casting liquid thermosetting resin into a mold and causing the resin to set in a field of centrifugal force.
Claims17
A method for molding a resin material in a mold having at least one article impression wherein said article impression is disposed in a centrifugal field about an axis of rotation comprising the steps of:
- (a) introducing said resin into said mold at about the axis of rotation thereof;
- (b) causing said resin to flow in a centrifugal field toward the periphery of said mold;
- and
- (c) supplying said resin to be molded to a radially outward portion of said article impression and filling said article impression in a centrifugal field from said outward portion in a direction substantially toward said axis of rotation.
A method for molding a resin material in a mold having at least one article impression wherein said article impression is disposed in a centrifugal field about an axis of rotation comprising the steps of:
- (a) introducing said resin into a casting well in said mold;
- (b) causing said resin to flow in a centrifugal field toward the periphery of said mold;
- and
- (c) supplying said resin to be molded to a radially outward portion of said impression and filling said article impression in a centrifugal field from said radial outward portion in a direction substantially toward said axis of rotation.
Dependencies are inferred from the claim text.