Molding particulate solids and sacrificial binders therefor

Details Molding particulate solids and sacrificial binders therefor Molding particulate solids and sacrificial binders therefor

C - Chemistry, Metallurgy

08

L

25/142, 400/3002

C08L 101/00 (2006.01) B22F 1/00 (2006.01) C04B 35/634 (2006.01) C04B 35/64 (2006.01) C08L 53/02 (2006.01) C08L 91/06 (2006.01)

Patent

CA 1066829

ABSTRACT OF THE DISCLOSURE Improvements in molded articles from sinterable particulate solids, improvements in method for making such articles, and novel sacrificial binders for use in making such articles are disclosed. The sacrificial binders used in this invention comprise block polymers having the structural formula AB ?AB?n A wherein "n" is 0 or a positive integer, "A" is a linear or branched polymer that is glassy or crystalline at room temperature and has its softening point in the range of about 80°C to about 250°C and "B" is a polymer different from A that behaves as an elastomer at processing tempera- tures, a plasticizer which may be oil, wax, or oil and wax, and optionally other components.

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