초록 ▼

Molding compositions including polyhydroxyalkanoates are provided. The use of polyhydroxyalkanoates as a binder in molding compositions provides improved binder removal in the finished molded product, and offers a wide range of physical properties suitable for use in a variety of processing conditio

Molding compositions including polyhydroxyalkanoates are provided. The use of polyhydroxyalkanoates as a binder in molding compositions provides improved binder removal in the finished molded product, and offers a wide range of physical properties suitable for use in a variety of processing conditions. The composition preferably includes a powdered material, such as a metal powder, ceramic powder, or blend, admixed with a polyhydroxyalkanoate binder. The compositions are useful in powder processing techniques, such as injection molding, slip casting, tape casting, or extrusion.

대표청구항 ▼

[ We claim:] [1.]1. A method of a forming shaped product, the method comprisingmolding a composition comprising a powdered material admixed with at least one thermally decomposable polyhydroxyalkanoate or a solution thereof to form the shaped product, andheating the shaped product to remove essentia

[ We claim:] [1.]1. A method of a forming shaped product, the method comprisingmolding a composition comprising a powdered material admixed with at least one thermally decomposable polyhydroxyalkanoate or a solution thereof to form the shaped product, andheating the shaped product to remove essentially all of the polyhydroxyalkanoate from the product, wherein heating of the shaped product is conducted in an atmosphere substantially free of oxidants.