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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11472929 B1

PDFFull Text
Date of Patent:
Oct. 18, 2022

Filed:

Apr. 24, 2015

Nylon powder composition for 3d printing, and preparation method and application thereof

Applicant:

Institute of Chemistry, Chinese Academy of Sciences, Beijing, CN;

Inventors:

Yongmei Ma, Beijing, CN;

Kun Zheng, Beijing, CN;

Jingnan Zhang, Beijing, CN;

Xinyu Cao, Beijing, CN;

Fusong Wang, Beijing, CN;

Xuechun Lin, Beijing, CN;

Wenhua Sun, Beijing, CN;

Jian Xu, Beijing, CN;

Jinyong Dong, Beijing, CN;

Chuncheng Li, Beijing, CN;

Wenxin Fu, Beijing, CN;

Assignee:

INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES, Beijing, CN;

Attorneys:

Novick, Kim & Lee, PLLC

Allen Xue

Primary Examiner:

Jane L Stanley

Int. Cl.
CPC ...
C08J 3/12 (2006.01); C08G 69/46 (2006.01); C08G 69/26 (2006.01); C08G 69/14 (2006.01); C08L 77/02 (2006.01); C08L 77/06 (2006.01); B29C 67/00 (2017.01); C08J 3/215 (2006.01); C08K 5/00 (2006.01); B29C 64/153 (2017.01); B29C 64/20 (2017.01); C08K 3/013 (2018.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C08J 3/20 (2006.01); C08K 3/04 (2006.01); C08K 3/08 (2006.01); C08K 3/34 (2006.01); C08K 3/36 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
C08J 3/12 (2013.01); B29C 64/153 (2017.08); B29C 64/20 (2017.08); B29C 67/00 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C08G 69/14 (2013.01); C08G 69/26 (2013.01); C08G 69/46 (2013.01); C08J 3/203 (2013.01); C08J 3/215 (2013.01); C08K 3/013 (2018.01); C08K 3/04 (2013.01); C08K 3/08 (2013.01); C08K 3/34 (2013.01); C08K 5/005 (2013.01); C08L 77/02 (2013.01); C08L 77/06 (2013.01); B29K 2105/0002 (2013.01); B29K 2105/251 (2013.01); C08J 2377/02 (2013.01); C08J 2377/06 (2013.01); C08K 3/36 (2013.01); C08K 2201/005 (2013.01); C08K 2201/01 (2013.01);
Abstract

This invention relates to a high molecular weight nylon powder composition for 3D printing, its preparation method and use. The composition comprises: 100 parts by weight of high-viscosity nylon powder, 1-5 parts by weight of a flow agent, and 0.1-1 parts by weight of an antioxidant; the high-viscosity nylon powder is one or more selected from nylon 6, nylon 66, nylon 11, nylon 12, nylon 612 and nylon 610; or the powder composition is obtained via polymerization reaction of the raw materials comprising the following components, based on the weight parts of lactam monomers or amide monomers: 100 parts by weight of lactam monomers or amide monomers, 0.005-1 parts by weight of a catalyst, and 0.1-1 parts by weight of an antioxidant. The high molecular weight nylon powder composition prepared in the present invention has a particle diameter in the range of 20-100 micrometers, good powder spreading performance, and is suitable for the 3D printing process, and the product of the high molecular weight nylon powder composition has good mechanical properties, good dimensional stability and low manufacturing cost.

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