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US 2013/0207302 A1Published application
Process for Making a Molded Part
AssigneeWeyerhaeuser NR Company
InventorsJeffrey J. Cernohous, Neil R. Granlund
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Abstract
The process of forming a molded part comprising providing a masterbatch composition comprising 65 to 85 weight percent wood pulp fiber and 15 to 35 weight percent thermoplastic polymer, placing the masterbatch composition directly into an injection molder; adding additional material comprising thermoplastic polymer to provide a let-down composition whereby the let-down composition comprises 20 to 50 weight percent wood pulp fiber and 45 to 85 weight percent thermoplastic polymer, forming molded parts from the injection molder.
Claims8
The process of forming a molded part comprising:
- providing a masterbatch composition comprising 65 to 85 weight percent wood pulp fiber and 15 to 35 weight percent thermoplastic polymer,
- placing the masterbatch composition directly into an injection molder;
- adding additional material comprising thermoplastic polymer to provide a let-down composition whereby the let-down composition comprises 20 to 50 weight percent wood pulp fiber and 45 to 85 weight percent thermoplastic polymer,
- forming molded parts from the injection molder.
1 more element
Dependencies are inferred from the claim text.