POWDER COMPOSITIONS, METHOD OF PREPARING ARTICLES AND COATINGS FROM THE POWDER COMPOSITIONS, AND ARTICLES PREPARED THEREFROM
First Claim
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1. A powder composition, comprising:
- a plurality of thermoplastic particles characterized by a bimodal particle size distribution comprising, based on the total weight of the particles,85 to 94 weight percent of the particles having a first D50 less than 1 millimeter; and
6 to 15 weight percent of the particles having a D50 that is 0.414 times the first D50.
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Abstract
A powder composition including a plurality of thermoplastic particles having an optimized particle size and particle size distribution is disclosed. The powder composition includes a plurality of thermoplastic particles having a bimodal particle size distribution or a trimodal particle size distribution. Also disclosed are methods of preparing three-dimensional articles, methods of preparing a powder coating, and articles prepared by the methods.
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Citations
20 Claims
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1. A powder composition, comprising:
a plurality of thermoplastic particles characterized by a bimodal particle size distribution comprising, based on the total weight of the particles, 85 to 94 weight percent of the particles having a first D50 less than 1 millimeter; and 6 to 15 weight percent of the particles having a D50 that is 0.414 times the first D50. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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2. A powder composition, comprising:
a plurality of thermoplastic particles characterized by a bimodal particle size distribution comprising, based on the total weight of the particles, 67 to 77 weight percent of the particles having a first D50 less than 1 millimeter; and 23 to 33 weight percent of the particles having a second D50 that is 0.732 times the first D50.
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3. A powder composition, comprising:
a plurality of thermoplastic particles characterized by a trimodal particle size distribution comprising, based on the total weight of the particles, 66 to 76 weight percent of the particles having a first D50 less than 1 millimeter; 23 to 33 weight percent of the particles having a second D50 that is 0.732 times the first D50; and 0.5 to 5 weight percent of the particles having a third D50 that is 0.268 times the first D50.
Specification