Binder for injection moulding compositions

An injection molding composition selected from the group consisting of compositions (A)-(J):

• (A) an injection molding composition consisting of, by weight:
• 86% of a black zirconium oxide powder, and
• 14% of a binder having a volumetric composition of:
• 24% of HD polyethylene;
• 10% of polypropylene;
• 4% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 10% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 11% of Carnauba wax;
• 31% of a paraffin wax;
• 6% of N, N′ ethylene-bis(stearamide);
• and
• 3% of a mixture of stearic acid and palmitic acid;
• (B) an injection molding composition consisting of, by weight:
• 86% of a white zirconium oxide powder, and
• 14% of a binder having a volumetric composition of:
• 26% of HD polyethylene;
• 10% of polypropylene;
• 4% of a copolymer of ethylene and methacrylic acid;
• 11% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 11% of Carnauba wax;
• 29% of a paraffin wax;
• and
• 8% of N, N′ ethylene-bis(stearamide);
• (C) an injection molding composition consisting of, by weight:
• 86% of an Al2O3 powder, and
• 14% of a binder having a volumetric composition of:
• 26% of HD polyethylene;
• 6% of polypropylene;
• 3.5% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 6% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 12% of Carnauba wax;
• 35% of a paraffin wax;
• 5.5% of N, N′ ethylene-bis(stearamide);
• and
• 5% of a mixture of stearic acid and palmitic acid;
• (D) an injection molding composition consisting of, by weight:
• 78% of an Al2O3 powder, and
• 22% of a binder having a volumetric composition of:
• 28% of HD polyethylene;
• 2% of polypropylene;
• 3% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 5% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 12% of Carnauba wax;
• 39% of a paraffin wax;
• 5% of N, N′ ethylene-bis(stearamide);
• and
• 5% of a mixture of stearic acid and palmitic acid;
• (E) an injection molding composition consisting of, by weight:
• 90% of a CrC powder, and
• 10% of a binder having a volumetric composition of:
• 24% of HD polyethylene;
• 6% of polypropylene;
• 3% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 5% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 12% of Carnauba wax;
• 39% of a paraffin wax;
• 5% of N, N′ ethylene-bis(stearamide);
• and
• 5% of a mixture of stearic acid and palmitic acid;
• (F) an injection molding composition consisting of, by weight:
• 89% of a TiC powder, and
• 11% of a binder having a volumetric composition of:
• 24% of HD polyethylene;
• 6% of polypropylene;
• 3% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 5% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 12% of Carnauba wax;
• 39% of a paraffin wax;
• 5% of N, N′ ethylene-bis(stearamide);
• and
• 5% of a mixture stearic acid and palmitic acid;
• (G) an injection molding composition consisting of, by weight:
• 94% of a CW powder, and
• 6% of a binder having a volumetric composition of:
• 25% of HD polyethylene;
• 8% of polypropylene;
• 4% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 7% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 11% of Carnauba wax;
• 34% of a paraffin wax;
• 5% of N, N′ ethylene-bis(stearamide);
• and
• 5% of a mixture of stearic acid and palmitic acid;
• (H) an injection molding composition consisting of, by weight:
• 94.5% of a CW powder, and
• 5.5% of a binder having a volumetric composition of:
• 25% of HD polyethylene;
• 8% of polypropylene;
• 4% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 7% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 11% of Carnauba wax;
• 37% of a paraffin wax;
• 5% of N, N′ ethylene-bis(stearamide);
• and
• 2% of a mixture of stearic acid and palmitic acid;
• (I) an injection molding composition consisting of, by weight:
• 94% of a W powder, and
• 6% of a binder having a volumetric composition of:
• 26% of HD polyethylene;
• 10% of polypropylene;
• 4% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 9% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 11% of Carnauba wax;
• 29% of a paraffin wax;
• 5% of N, N ethylene-bis(stearamide);
• and
• 5% of a mixture of stearic acid and palmitic acid;
• and
• (J) an injection molding composition consisting of, by weight:
• 95% of a W powder, and
• 5% of a binder having a volumetric composition of:
• 25% of HD polyethylene;
• 10% of polypropylene;
• 4% of a copolymer of ethylene and methacrylic acid, comprising 6.5% wt of methacrylic acid;
• 7% of an isobutyl methacrylate polymer resin having a molecular weight of 195,000;
• 1% of an n-butyl and isobutyl methacrylate copolymer resin having a molecular weight of 195,000;
• 11% of Carnauba wax;
• 32% of a paraffin wax;
• 5% of N, N′ ethylene-bis(stearamide);
• and
• 5% of a mixture of stearic acid and palmitic acid.