ADDITIVE MANUFACTURING USING PHOTOTHERMAL DYES FOR HIGH EFFICIENCY SINTERING

WIPO Patent Application WO/2019/172320

A1

Methods, processes, and systems for the manufacture of three-dimensional articles made of polymers using 3D printing are provided. A layer of high performance polymer can be deposited on a build plate to form a powder bed. Then, a solution of a photothermal dye can be printed on the powder bed in a predetermined pattern. Alternatively, the photothermal dye can be added to the entire powder bed. Electromagnetic radiation can be applied, either to the entire bed or in a predetermined pattern, to form 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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LEE CHANG-UK (US)
BOYDSTON ANDREW J (US)
GANTER MARK A (US)
STORTI DUANE W (US)

PCT/JP2019/008890

September 12, 2019

March 06, 2019

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RICOH CO LTD (JP)
UNIV WASHINGTON (US)

B33Y70/00; B29C64/106; B29C64/165; B29C64/194; B29C64/20; C08K5/00; C08L71/00

EP3210763A1

2017-08-30

None

ITOH, Tadashige et al. (JP)

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