US 12,291,623 B2
Organically modified chalcogenide polymers
Darryl A. Boyd, Fort Washington, MD (US); Vinh Q. Nguyen, Fairfax, VA (US); Nia A. Pollard, Alexandria, VA (US); Frederic H. Kung, Alexandria, VA (US); Daniel J. Gibson, Cheverly, MD (US); Jason D. Myers, Alexandria, VA (US); Colin C. Baker, Alexandria, VA (US); Woohong Kim, Lorton, VA (US); and Jasbinder S. Sanghera, Ashburn, VA (US)
Assigned to The Government of the United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed by The Government of the United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed on Jun. 30, 2022, as Appl. No. 17/855,021.
Application 17/855,021 is a continuation in part of application No. 17/110,687, filed on Dec. 3, 2020, granted, now 11,827,008.
Claims priority of provisional application 63/216,587, filed on Jun. 30, 2021.
Claims priority of provisional application 62/942,858, filed on Dec. 3, 2019.
Prior Publication US 2022/0332918 A1, Oct. 20, 2022
Int. Cl. C08K 3/06 (2006.01); C08F 12/36 (2006.01); C08J 3/24 (2006.01)
CPC C08K 3/06 (2013.01) [C08F 12/36 (2013.01); C08J 3/24 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for making a polymer, comprising:
purifying a chalcogenide polymer powder comprising one or more chalcogenide elements;
melting the purified chalcogenide polymer powder;
adding one or more crosslinking moieties to the melted chalcogenide polymer powder;
curing the modified chalcogenide polymer at a temperature between 150 and 200° C.; and
forming a polymer capable of achieving optical transmission in the long-wavelength infrared (LWIR) range from 8-14 μm.