US 12,291,601 B2
Closed-loop thermoplastic copolymers
Ashley Dustin, Santa Monica, CA (US); Andrew Nowak, Los Angeles, CA (US); and Erik Crenshaw, Los Angeles, CA (US)
Assigned to HRL Laboratories, LLC, Malibu, CA (US)
Filed by HRL Laboratories, LLC, Malibu, CA (US)
Filed on Aug. 27, 2023, as Appl. No. 18/238,499.
Prior Publication US 2025/0066551 A1, Feb. 27, 2025
Int. Cl. C08G 73/02 (2006.01); C08J 11/12 (2006.01); C08J 11/16 (2006.01); C08J 11/18 (2006.01)
CPC C08G 73/0253 (2013.01) [C08G 73/024 (2013.01); C08J 11/12 (2013.01); C08J 11/16 (2013.01); C08J 11/18 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A segmented thermoplastic copolymer comprising:
(a) a plurality of difunctional triketone species, or a reacted form thereof;
(b) a plurality of a first diamine species, or a reacted form thereof, wherein said first diamine species contains one or more primary amine groups and/or one or more secondary amine groups, and wherein said first diamine species does not contain a tertiary amine group;
(c) a plurality of a second diamine species, or a reacted form thereof, wherein said second diamine species contains one or more primary amine groups and/or one or more secondary amine groups, wherein said second diamine species does not contain a tertiary amine group, and wherein said second diamine species is different than said first diamine species; and
(d) a plurality of monofunctional amine-reactive groups, or a reacted form thereof.