Title:
POLYMER POWDER FOR PRODUCING 3-DIMENSIONAL MODEL, METHOD FOR PRODUCING 3-DIMENSIONAL MODELED OBJECT THROUGH POWDER BED MELT BONDING METHOD USING POLYMER POWDER, AND 3-DIMENSIONAL MODELED OBJECT
Document Type and Number:
WIPO Patent Application WO/2021/090768
Kind Code:
A1
Abstract:
This polymer powder for producing a three-dimensional modeled object through a powder bed melt bonding method is formed of polyamide. Said polymer powder for producing a three-dimensional modeled object is characterized by containing, with respect to the polymer powder, less than 0.001 mass% of at least one polymer (A) which has a number average particle diameter of 1-100 μm, a sphericity of at least 80, and a weight average molecular weight of at most 20,000 and which is selected from the group consisting of polyethylene glycol, polypropylene glycol, polytetramethylene glycol, a polyethylene glycol-polypropylene glycol copolymer, and alkyl ethers thereof.
Inventors:
NAKAMURA TOMOHIKO (JP)
OKUNO YOTA (JP)
IWATA HIROKAZU (JP)
NISHIDA MIKIYA (JP)
ASANO ITARU (JP)
OKUNO YOTA (JP)
IWATA HIROKAZU (JP)
NISHIDA MIKIYA (JP)
ASANO ITARU (JP)
Application Number:
PCT/JP2020/040805
Publication Date:
May 14, 2021
Filing Date:
October 30, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B29C64/153; C08L77/00; B33Y10/00; B33Y70/00; B33Y70/10; C08K3/36; C08L71/02
Domestic Patent References:
| WO2018207728A1 | 2018-11-15 | |||
| WO2017191760A1 | 2017-11-09 |
Foreign References:
| JP2018196983A | 2018-12-13 |
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