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.:
Date of Patent:
May. 19, 2026
Filed:
Nov. 10, 2021
Exxonmobil Technology and Engineering Company, Annandale, NJ (US);
Stuart E. Smith, Easton, PA (US);
William M. Ferry, Rochester Hills, MI (US);
Kazem V. Edmond, Lebanon, NJ (US);
Manesh Gopinadhan, Basking Ridge, NJ (US);
Nicolas J. Alvarez, Drexel Hill, PA (US);
Heedong Yoon, Philadelphia, PA (US);
Clarence E. Chase, Bensalem, PA (US);
Daniel J. Ryan, Easton, PA (US);
ExxonMobil Technology and Engineering Company, Spring, TX (US);
Abstract
Pitch compositions suitable for spinning may comprise: a pitch having a softening point (SP) below 400° C. and is capable of achieving a radial Hencky strain prior to break of about 0.7 to about 10, at spinning temperature (T) ranging from about SP−30° C. to about SP+80° C. Methods for producing a carbon fiber from a pitch composition at a temperature within a spinning temperature (T) range may comprise determining a temperature range wherein the maximum radial Hencky strain (ε) lies above a minimum process radial Hencky strain, and wherein the minimum process radial Hencky strain is within a range of about 0.7 to about 10. The spinning temperature (T) range may be determined by measuring a maximum radial Hencky strain (ε) prior to break at a series of different temperatures and strain rates. Carbon fiber composites may comprise of the said carbon fiber.