Dual color blow molding process
AssigneeLifetime Products, Inc.
InventorsMatthew Scott Anderson, Mark Cole
Life of this patent
Estimating the term…
Abstract
An example extrusion blow molding (EBM) method includes extruding first and second colors of plastic to form a parison that includes an inner layer of the first color of plastic, and an outer layer of the second color of plastic. The parison is placed in a mold, the mold is closed, and the parison is inflated to create a blow molded structure. A portion of an interior of the blow molded structure is formed of the first color of plastic, and a portion of an exterior of the blow molded structure is formed of a blend of the first color of plastic and the second color of plastic.
Claims36
A method, comprising:
- extruding plastic of a first color and plastic of a second color to form a parison comprising melted plastic, wherein the parison includes an inner layer comprising the plastic of the first color, and the parison also includes an outer layer comprising the plastic of the second color, and wherein during and/or after the extruding, the plastic of the first color blends together with the plastic of the second color so that a portion of the parison comprises a blend of the plastic of the first color and the plastic of the second color;
- placing the parison in a mold;
- and
- inflating the parison to create a portion of a watercraft.
A method, comprising:
- extruding a plastic of a first color and a plastic of a second color to form a parison comprising melted plastic, wherein during and/or after the extruding, the plastic of the first color blends together with the plastic of the second color so that a portion of the parison comprises a blend of the plastic of the first color and the plastic of the second color;
- placing the parison in a mold;
- and
- inflating the parison to create a portion of a watercraft.
Dependencies are inferred from the claim text.