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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 12390990 B1

PDFFull Text
Date of Patent:
Aug. 19, 2025

Filed:

Nov. 12, 2020

Use of thermoplastic cellulose composite for additive manufacturing

Applicant:

Teknologian Tutkimuskeskus Vtt Oy, Espoo, FI;

Inventors:

Kirsi Immonen, Tampere, FI;

Eino Sivonen, Tampere, FI;

Sini Metsä-Kortelainen, Espoo, FI;

Jarmo Ropponen, Espoo, FI;

Pia Willberg-Keyriläinen, Espoo, FI;

Assignee:

Teknologian tutkimuskeskus VTT Oy, Espoo, FI;

Attorney:

Laine IP Oy

Primary Examiner:

Randy P Gulakowski

Assistant Examiner:

Virginia L Stonehocker

Int. Cl.
CPC ...
B29C 64/141 (2017.01); B29K 1/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C08K 5/09 (2006.01);
U.S. Cl.
CPC ...
B29C 64/141 (2017.08); C08K 5/09 (2013.01); B29K 2001/12 (2013.01); B29K 2001/14 (2013.01); B29K 2995/0017 (2013.01); B29K 2995/006 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12);
Abstract

The present invention relates to a thermoplastic cellulose composite for additive manufacturing. The composite comprises at least 50 weight-% of total cellulose, a plasticizer, and a coupling agent of an epoxy-modified polyunsaturated fatty acid. The material is fully bio-based and offers improved cellulose content and thermal resistance compared to existing bio-based thermoplastic materials used in additive manufacturing.

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Immonen, Kirsi. (2025). Use of thermoplastic cellulose composite for additive manufacturing (U.S. Patent No. 12390990). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12390990

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