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US 6,468,458 B1Granted
Method for forming a composite product
AssigneeTextron Automotive Company Inc.
InventorsTerry L. Anderson, Nelson J. Morren, Glen J. Jeffrey
Life of this patent
Estimating the term…
Abstract
A process for formation of a plastic composite includes providing a two part mold system wherein one of the parts is moveable and includes cavities and the other of the parts is stationary and includes cores each having less mass and sequentially moving the moveable mold part with respect to the stationary mold part to form an injection volume between each of said mold cavities of variable capacity.
Claims7
A process for manufacturing a multi-layer composite product of injection molded plastic comprising
- providing a moveable mold part comprising at least a first mold cavity;
- providing a stationary mold part comprising at least a first mold core and a second mold core, the second mold core having less mass than the first mold core;
- aligning the first mold cavity with the first mold core, the first mold cavity and the first mold core having a first injection volume;
- injecting a first polymeric material through the first core and into the first injection volume to form a first layer;
- sequentially moving the moveable mold part having said first mold cavity and said first layer with respect to the stationary mold part to selectively align the first mold cavity with said first layer with the second mold core, the first mold cavity and the second mold core having a second injection volume, the second injection volume being greater that the first injection volume;
- injecting a second polymeric material through the second core into the second injection volume such that the second polymeric material is injected against the first layer to form the composite product and
- providing either the first layer of the polymeric material or the second layer of polymeric material with pigments or dyes to produce a colored appearance on the viewing surface of the composite product and to produce a covering surface congruent to the second layer of polymeric material for enhancing the appearance of the first layer of polymeric material.
4 more elements
Dependencies are inferred from the claim text.