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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 10633468 B1

PDFFull Text
Date of Patent:
Apr. 28, 2020

Filed:

Mar. 31, 2017

3-d printed fluoropolymer structures

Applicant:

Arkema Inc., King of Prussia, PA (US);

Inventors:

David Shin-Ren Liu, Bala Cynwyd, PA (US);

Gregory S. O'Brien, Downingtown, PA (US);

David A. Seiler, Garnet Valley, PA (US);

Assignee:

Arkema Inc., King of Prussia, PA (US);

Attorney:

Joanne Rossi

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
C08F 14/22 (2006.01); B29C 64/112 (2017.01); C08L 27/16 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B29C 64/118 (2017.01); C08K 3/26 (2006.01); C08K 3/30 (2006.01); B29K 27/12 (2006.01); C08L 61/00 (2006.01); C08L 27/14 (2006.01); C08L 27/18 (2006.01); C08L 71/00 (2006.01); C08L 33/12 (2006.01); C08L 61/16 (2006.01); B29C 64/106 (2017.01); C08L 27/12 (2006.01); C08L 27/20 (2006.01); B29K 33/00 (2006.01); C08K 7/10 (2006.01); C08K 3/22 (2006.01); C08K 7/20 (2006.01); C08K 7/04 (2006.01); C08K 7/02 (2006.01); B32B 27/08 (2006.01); B32B 27/16 (2006.01); B32B 7/02 (2019.01); B32B 27/18 (2006.01); B32B 7/022 (2019.01); C08K 3/04 (2006.01); B29K 27/00 (2006.01); C08K 3/34 (2006.01); C08K 3/36 (2006.01); C08K 3/40 (2006.01); C08K 7/06 (2006.01); C08K 7/14 (2006.01); C08K 7/22 (2006.01); C08K 3/013 (2018.01);
U.S. Cl.
CPC ...
C08F 14/22 (2013.01); B29C 64/112 (2017.08); B29C 64/118 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C08K 3/26 (2013.01); C08K 3/30 (2013.01); C08L 27/16 (2013.01); B29C 64/106 (2017.08); B29K 2027/12 (2013.01); B29K 2027/16 (2013.01); B29K 2033/12 (2013.01); B32B 7/02 (2013.01); B32B 7/022 (2019.01); B32B 27/08 (2013.01); B32B 27/16 (2013.01); B32B 27/18 (2013.01); B32B 2307/50 (2013.01); B32B 2307/51 (2013.01); B32B 2307/54 (2013.01); B32B 2327/12 (2013.01); B32B 2333/12 (2013.01); C08K 3/013 (2018.01); C08K 3/04 (2013.01); C08K 3/041 (2017.05); C08K 3/042 (2017.05); C08K 3/22 (2013.01); C08K 3/34 (2013.01); C08K 3/36 (2013.01); C08K 3/40 (2013.01); C08K 7/02 (2013.01); C08K 7/04 (2013.01); C08K 7/06 (2013.01); C08K 7/10 (2013.01); C08K 7/14 (2013.01); C08K 7/20 (2013.01); C08K 7/22 (2013.01); C08K 2003/262 (2013.01); C08K 2003/265 (2013.01); C08K 2003/3045 (2013.01); C08L 27/12 (2013.01); C08L 27/14 (2013.01); C08L 27/18 (2013.01); C08L 27/20 (2013.01); C08L 33/12 (2013.01); C08L 61/00 (2013.01); C08L 61/16 (2013.01); C08L 71/00 (2013.01);
Abstract

The invention relates to fluoropolymer filament for use in 3-D printing, and 3-D printed fluoropolymer articles having low warpage, excellent chemical resistance, excellent water resistance, flame resistance, and good mechanical integrity. Additionally, the articles of the invention have good shelf life without the need for special packaging. In particular, the invention relates to filament, 3-D printed polyvinylidene fluoride (PVDF) articles, and in particular material extrusion 3-D printing. The articles may be formed from PVDF homopolymers, copolymers, such as KYNAR® resins from Arkema, as well as polymer blends with appropriately defined low shear melt viscosity. The PVDF may optionally be a filled PVDF formulation. The physical properties of the 3-D printed articles can be maximized and warpage minimized by optimizing processing parameters.

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