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US 11,680,158 B2Granted
Polyolefins having improved dimensional stability in three-dimensional printing, articles formed therefrom, and methods thereof
AssigneeBraskem S.A.
InventorsJason Clark, Leonardo Ito, Alexandre da Luz
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Abstract
A polymer composition suitable for manufacturing of isotropic three-dimensional printed articles, the composition including: a matrix phase including a propylene-based polymer or copolymer; and a dispersed phase in the matrix phase, the dispersed phase including an ethylene-based copolymer having a C3-C12 comonomer, wherein the dispersed phase has a different composition than the matrix phase, wherein the matrix phase has a crystallization half-time of less than 60 minutes.
Claims13
A polymer composition suitable for manufacturing of isotropic three-dimensional printed articles, the composition comprising:
- a matrix phase comprising a propylene-based polymer or copolymer;
- and
- a dispersed phase in the matrix phase, the dispersed phase comprising an ethylene-based copolymer having a C3-C12 comonomer, wherein the dispersed phase has a different composition than the matrix phase,
- wherein the matrix phase has a crystallization half-time of less than 60 minutes measured at 30° C. less than a melting temperature of the matrix phase, and
- wherein the polymer composition has a unidimensional shrinkage of less than 1.8% and an isotropic shrinkage ratio in the range of 0.8 to 1.2 after 3D printing.
2 more elements
Dependencies are inferred from the claim text.