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US 2018/0371244 A1Published application
Enhanced powder flow and melt flow of polymers for additive manufacturing applications
AssigneeSabic Global Technologies B.V.
InventorsChiel Albertus LEENDERS, Samuel IJSSELMUIDEN, Johannes Gerardus Petrus GOOSENS, Bruke JOFORE, Hao GU
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Abstract
Provided are thermoplastic-nanoparticle compositions that exhibit enhanced powder and melt flow. The disclosed compositions, comprising nanoparticles being silylated, have particular application in additive manufacturing processes, such as selective laser sintering and other processes.
Claims20
An additive-manufactured workpiece, comprising:
- an amount of a fused thermoplastic powder;
- a population of nanoparticles present at less than about 1 wt % measured against the weight of the thermoplastic and the nanoparticles in the workpiece,
- the population of nanoparticles having a volume average cross-sectional dimension of less than about 100 nm, and
- at least some of the nanoparticles being silylated.
1 more element
A composition, comprising:
- a population of thermoplastic particles;
- and
- a population of silylated nanoparticles having a volume average diameter of less than about 100 nm,
- the population of silylated nanoparticles being present at less than about 0.2 wt % measured against the weight of the thermoplastic and the nanoparticles in the composition.
1 more element
A method, comprising:
- depositing a first amount of a composition onto a target surface;
- the composition comprising a population of thermoplastic particles and a population of silylated nanoparticles having a volume average diameter of less than about 100 nm;
- and
- directing energy to the first amount of the composition so as melt a portion of the first amount of the composition and join the first amount of the composition to the target surface.
1 more element
(canceled)
Dependencies are inferred from the claim text.