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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 12558304 B1

PDFFull Text
Date of Patent:
Feb. 24, 2026

Filed:

Oct. 20, 2023

Metal oxide particle ester dispersions including polyesters having a broad molecular weight distribution

Applicant:

Inolex Investment Corporation, Wilmington, DE (US);

Inventors:

Michael J. Fevola, Wilmington, DE (US);

Tobias J. Fütterer, Wilmington, DE (US);

Brittany M. Pease, Wilmington, DE (US);

Assignee:

INOLEX INVESTMENT CORPORATION, Wilmington, DE (US);

Attorney:

COZEN O'CONNOR

Primary Examiner:

Nannette Holloman

Int. Cl.
CPC ...
A61K 8/85 (2006.01); A61K 8/06 (2006.01); A61K 8/27 (2006.01); A61K 8/29 (2006.01); A61Q 17/04 (2006.01); C08J 3/20 (2006.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
A61K 8/85 (2013.01); A61K 8/06 (2013.01); A61K 8/062 (2013.01); A61K 8/064 (2013.01); A61K 8/27 (2013.01); A61K 8/29 (2013.01); A61Q 17/04 (2013.01); C08J 3/203 (2013.01); C08K 3/22 (2013.01); C08J 2367/04 (2013.01); C08K 2003/2237 (2013.01); C08K 2003/2296 (2013.01);
Abstract

The present invention relates to a nonaqueous composition for dispersing metal oxide particles. The nonaqueous composition comprises an ester dispersing media and a broad molecular weight distribution (MWD) polyester dispersing agent, each preferably synthesized from 100% biobased carbon. The ester dispersing media includes a liquid ester selected from the group consisting of: Formulas (I), (II), (III), (IV), and combinations thereof. The polyester dispersing agent has a polydispersity index (PDI) of greater than about 2.3. The present invention also relates to a nonaqueous dispersion comprising the nonaqueous composition above and metal oxide particles dispersed therein. The metal oxide particles may comprise zinc oxide, titanium oxide, or combinations thereof. Formulations using the compositions and dispersions as well as processes for preparing are also disclosed.

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Fevola, Michael. (2026). Metal oxide particle ester dispersions including polyesters having a broad molecular weight distribution (U.S. Patent No. 12558304). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12558304

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

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