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.

Date of Patent:
Jul. 22, 2025

Filed:

Apr. 26, 2022
Applicant:

Rensselaer Polytechnic Institute, Troy, NY (US);

Inventors:

Ranodhi Nilochani Udangawa, Troy, NY (US);

Charles Frederick Willard, Cambridge, MA (US);

Chiara Diamante Mancinelli, Croton-on-Hudson, NY (US);

Caitlyn A. Chapman, Vernon, CT (US);

Robert John Linhardt, Albany, NY (US);

Trevor John Simmons, Troy, NY (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/02 (2019.01); D01D 5/00 (2006.01); D01D 5/20 (2006.01); D01D 5/34 (2006.01); D01D 10/06 (2006.01); D01F 1/10 (2006.01); D01F 2/00 (2006.01); D04H 1/413 (2012.01); D04H 1/4382 (2012.01); D04H 1/4391 (2012.01); D04H 1/728 (2012.01);
U.S. Cl.
CPC ...
D01D 5/0069 (2013.01); D01D 5/0046 (2013.01); D01D 5/0076 (2013.01); D01D 5/20 (2013.01); D01D 5/34 (2013.01); D01D 10/06 (2013.01); D01F 1/10 (2013.01); D01F 2/00 (2013.01); D04H 1/413 (2013.01); D04H 1/43828 (2020.05); D04H 1/43912 (2020.05); D04H 1/728 (2013.01); Y10T 442/60 (2015.04); Y10T 442/614 (2015.04); Y10T 442/622 (2015.04);
Abstract

A network of microfibers are fabricated with a core-shell construction from sustainable materials, where the core includes a phase-change material, such as coconut oil, and the shell includes a biomass, such as cellulose. The microfibers are made via a wet-wet electrospinning process utilizing a coaxial spinneret with an inner conduit and an outer conduit. The biomass and the phase-change material are coaxially extruded into a coagulation bath including a mixture of ethanol and water. The collected microfibers exhibit a beaded structure of PCM aggregates and biomass connecting regions between the aggregates and are effective to aid in the thermoregulation of the immediate environment surrounding the network. The microfibers are suitable for use in a variety of sustainable products such as wearable thermoregulating textiles, wall/ceiling panels, insulation, packaging material, and more.


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