Advanced Materials Technologies Pte, Ltd.

Ceramet Technologies Pte. Ltd.

Dunstan H Peiris

Jian G Zhang

Sow W Loh

Jun W Zhao

There is provided a mouldable composition for use in manufacturing a sintered metal or ceramic object, the composition comprising a metal or ceramic powder, a cross-linkable thermoplastic polymer and an amount of a cross-linking agent effective to cross-link the thermoplastic polymer at an elevated temperature. There is also provided a process for manufacturing a sintered metal or ceramic object using such a mouldable composition.

Mouldable composition and process

The disclosure relates to a binder, and the method of formulating the said binder, which is suitable for shaping parts from metallic and/or ceramic particles by injection molding. The binder comprises materials that are mainly thermoplastics, each of which having a percentage that is determined by its thermogravimetric analysis (TGA) profile and a weight loss versus highest binder removal rate from a green body by progressive heating. The removal of this binder from the green body is performed within a much shorter period of time than those published in the prior art. An example binder comprises 40-70% HDPE, 18-30% Paraffin wax, 10-25% microcrystalline wax and 2-5% stearic acid. Another binder comprises 35-65% PP, 23-35% paraffin wax, 10-25% microcrystaline wax and 2-5% stearic acid.

Binder for producing articles from particulate materials

Removal of binder for producing articles from particulate materials by

The disclosure relates to a binder, and the method of formulating the said binder, which is suitable for shaping parts from metallic and/or ceramic particles by injection molding. The binder comprises materials that are mainly thermoplastics, each of which having a percentage that is determined by its thermogravimetric analysis (TGA) profile and a weight loss versus temperature profile that is designed for the binder to allow highest binder removal rate from a green body by progressive heating. The removal of this binder from the green body is performed within a much shorter period of time than those published in the prior art. An example binder comprises 40-70% HDPE, 18-30% Paraffin wax, 10-25% microcrystalline wax and 2-5% stearic acid. Another binder comprises 35-65% PP, 23-35% paraffin wax, 10-25% microcrystaline wax and 2-5% stearic acid.

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Singapore, Singapore

Dunstan H Peiris