Method for solid freeform fabrication
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United States of America Patent
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Nov 7, 2017
Issued Date -
N/A
app pub date -
Mar 3, 2015
filing date -
Mar 3, 2015
priority date (Note) -
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Abstract
The present invention provides methods, processes, and systems for the manufacture of three-dimensional articles made of polymers using 3D printing. A layer of prepolymer is deposited on a build plate to form a powder bed. The deposited powder bed is heated to about 50° C. to about 170° C. Then, a solution of activating agent is printed on the powder bed in a predetermined pattern, and a stimulus is applied converting the prepolymer to the final polymer. After a predetermined period of time, sequential layers are printed to provide the three-dimensional article. The three-dimensional object can be cured to produce the three-dimensional article composed of the final polymers.
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