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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 12781024 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Oct. 14, 2020

Flame retardant composition, prepreg, and fiber reinforced composite material

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Katrina P. Vizzini, Tacoma, WA (US);

Benjamin Lehman, Tacoma, WA (US);

Jonathan Hughes, Tacoma, WA (US);

Alfred P. Haro, Tacoma, WA (US);

Toshiya Kamae, Tacoma, WA (US);

Assignee:

Toray Industries, Inc., Tokyo, JP;

Attorney:

Buchanan Ingersoll & Rooney PC

Primary Examiner:

David T Karst

Int. Cl.
CPC ...
C08J 5/24 (2006.01); C08G 59/32 (2006.01); C08G 59/38 (2006.01); C08G 59/44 (2006.01); C08G 59/50 (2006.01); C08G 59/68 (2006.01); C08K 5/5313 (2006.01); C08L 63/00 (2006.01);
U.S. Cl.
CPC ...
C08K 5/5313 (2013.01); C08G 59/3227 (2013.01); C08G 59/38 (2013.01); C08G 59/44 (2013.01); C08G 59/504 (2013.01); C08G 59/686 (2013.01); C08J 5/243 (2021.05); C08J 5/249 (2021.05); C08L 63/00 (2013.01); C08J 2363/02 (2013.01); C08J 2429/14 (2013.01);
Abstract

This invention relates to a flame retardant fiber-reinforced composite material based on an epoxy resin composition which includes at least one epoxy resin having an epoxy functionality of at least 2 as well as at least one organic phosphinic acid or derivative thereof (e.g., an organic phosphinic acid-modified epoxy resin), reinforced with a fiber having a thermal conductivity≥3 W/m·K at room temperature, as well as a prepreg for making such a flame retardant fiber-reinforced composite material. More specifically, a composite material is provided that contains a combination of particular types of epoxy resins, curatives, and reinforcing fibers that provide sufficient flame retardance for thin-ply laminates when cured at 163° C. for 15 minutes. These cured composites are also suitable for a variety of applications requiring flame retardancy.

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Vizzini, Katrina. (2026). Flame retardant composition, prepreg, and fiber reinforced composite material (U.S. Patent No. 12781024). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12781024

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