Methods of manufacturing green bodies and substrates

A method of manufacturing a green body, the method comprising:

• providing:
• a first composition comprising a first polymer and a first solvent, wherein the first polymer is soluble in the first solvent,
• a third composition comprising a second substrate material, a third polymer, a fusing agent, and a third solvent, wherein the third polymer is soluble in the first solvent and the third solvent;
• forming the first composition and the third composition into a multilayer structure wherein the first composition forms a first layer and the third composition forms a third layer;
• and
• contacting the multilayer structure with a fourth solvent in which the first polymer and third polymer are insoluble to precipitate said polymers, thereby forming a green body.

A method of manufacturing a green body, the method comprising:

• providing:
• a first composition comprising a first polymer and a first solvent, wherein the first polymer is soluble in the first solvent,
• a second composition comprising a first substrate material, a second polymer and a second solvent, wherein the second polymer is soluble in the first solvent and the second solvent, and
• a third composition comprising a second substrate material, a third polymer, a fusing agent, and a third solvent, wherein the third polymer is soluble in the first solvent and the third solvent;
• forming the first composition, the second composition and the third composition into a multilayer structure wherein the first composition forms a first layer, the second composition forms a second layer, and the third composition forms a third layer and the second layer is adjacent to the third layer;
• and
• contacting the multilayer structure with a fourth solvent in which the first polymer, second polymer, and third polymer are insoluble to precipitate said polymers, thereby forming a green body.