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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 11988650 B1

PDFFull Text
Date of Patent:
May. 21, 2024

Filed:

Jun. 25, 2019

Determination of the amorphous content of polymers

Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Rongjuan Cong, Lake Jackson, TX (US);

Kimberly L. Bailey, Pearland, TX (US);

Vickie Ricca, Lake Jackson, TX (US);

Assignee:

Dow Global Technologies LLC, Midland, MI (US);

Attorney:
Primary Examiner:

Manuel L Barbee

Int. Cl.
CPC ...
G01N 30/54 (2006.01); G01N 30/00 (2006.01); G01N 30/86 (2006.01); G01N 33/44 (2006.01); G01N 30/88 (2006.01);
U.S. Cl.
CPC ...
G01N 30/54 (2013.01); G01N 30/8679 (2013.01); G01N 33/442 (2013.01); G01N 2030/008 (2013.01); G01N 2030/885 (2013.01);
Abstract

A method to determine the weight percent of an 'amorphous' fraction in an olefin-based polymer composition, comprising one or more olefin-based polymers; said method comprising the following steps: a) dissolving the olefin-based polymer composition in an organic solvent to form a polymer solution; b) injecting at least a portion of the polymer solution onto a support material, and wherein the support material has a Co-crystallization Index (CI) value from 0.70 to 1.20; c) cooling the support material at a rate greater than, or equal to, 0.2 C/min; d) increasing the temperature of the support material to elute the polymers of the olefin-based polymer composition; e) generating a chromatogram; f) determining the peak area of the first elution from its lower integration limit to its upper integration limit; g) calculating the “amorphous” fraction” based on the following Equation A below: wt % “amorphous” fraction=PA/PA×100 (Eqn. A); wherein PA=peak area of the first elution, and PAtotal #191=total peak area of the polymers of the olefin-based polymer composition.

Find Patent Forward Citations

Cong, Rongjuan. (2024). Determination of the amorphous content of polymers (U.S. Patent No. 11988650). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11988650

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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