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:
Aug. 23, 2022
Filed:
Dec. 17, 2019
Hrl Laboratories, Llc, Malibu, CA (US);
Andrew P. Nowak, Los Angeles, CA (US);
Ashley M. Dustin, Los Angeles, CA (US);
April R. Rodriguez, Santa Monica, CA (US);
Kevin Drummey, Los Angeles, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
Some variations provide a polysulfide-based copolymer containing first repeat units comprising S-derived sulfur atoms bonded via sulfur-sulfur bonds; and second repeat units comprising an organic, non-aromatic thiol molecule. Other variations provide a polysulfide-based copolymer containing first repeat units comprising S-derived sulfur atoms bonded via sulfur-sulfur bonds; and second repeat units comprising an organic, non-aromatic unsaturated molecule, wherein the polysulfide-based copolymer has a total sulfur concentration of about 10 wt % or greater. Other variations provide a polysulfide-based copolymer containing first repeat units comprising S-derived sulfur atoms bonded via sulfur-sulfur bonds; second repeat units comprising an organic, non-aromatic thiol molecule; and third repeat units comprising an organic, non-aromatic unsaturated molecule. Other variations provide a polysulfide-based copolymer containing first repeat units comprising S-derived sulfur atoms bonded via sulfur-sulfur bonds; and second repeat units comprising an organic, non-aromatic thioether molecule. The disclosed polysulfide-based copolymers provide broadband transparency, fracture toughness, fluid resistance, and low cost.