Filaments comprising ionomers and use in fused filament fabrication
AssigneeDow Global Technologies LLC
InventorLynda Kaye Johnson
Life of this patent
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Abstract
The disclosure generally relates to 3D printed articles prepared from filaments comprising an ionomer (A) prepared from a base resin (B); wherein: base resin (B) is prepared from ethylene and at least one C3 to C8 α,β ethylenically unsaturated carboxylic acid monomer; the carboxylic acid moieties of base resin (B) are 10 to 99.5 percent neutralized by zinc or lithium; the at least one C3 to C8 α,β ethylenically unsaturated carboxylic acid is present from about 2 weight percent to about 30 weight percent, based on the weight of base resin (B).
Claims19
A 3D printed article prepared from a conditioned or unconditioned filament, said filament comprising an ionomer (A), said ionomer (A) prepared from a base resin (B);
- wherein:
- base resin (B) is prepared from ethylene and at least one C3 to C8 α, β ethylenically unsaturated carboxylic acid monomer;
- the carboxylic acid moieties of base resin (B) are 10 to 99.5 percent neutralized by zinc or lithium;
- the at least one C3 to C8 α, β ethylenically unsaturated carboxylic acid is present from about 2 weight percent to about 30 weight percent, based on the weight of base resin (B).
A process for making a 3D printed article from a conditioned or unconditioned filament, said process comprising the step of depositing a plurality of layers using a 3D printer to form said 3D printed article wherein said filament comprises an ionomer (A) prepared from a base resin (B);
- wherein:
- base resin (B) is prepared from ethylene and at least one C3 to C8 α, β ethylenically unsaturated carboxylic acid monomer;
- the carboxylic acid moieties of base resin (B) are 10 to 99.5 percent neutralized by zinc or lithium;
- the at least one C3 to C8 α, β ethylenically unsaturated carboxylic acid is present from about 2 weight percent to about 30 weight percent, based on the weight of base resin (B).
Dependencies are inferred from the claim text.