公开(公告)号：US20230272131A1

公开(公告)日：2023-08-31

申请号：US17849485

申请日：2022-06-24

Applicant: AGENCY FOR DEFENSE DEVELOPMENT

Inventor： Byoung Sun MIN ,  Jin Hyuk LEE ,  Hong Min SHIM ,  Sungjune KIM ,  Minhye LEE

IPC: C08F136/14

CPC classification number: C08F136/14

Abstract: Provided are a modified conjugated diene-based polymer comprising a conjugated diene-based monomer-derived repeating unit; and a chain extender-derived part which is linked to both terminals of the conjugated diene based monomer-derived repeating unit, respectively, includes one or more urethane groups in a molecular chain, and has different functional groups at both terminals, wherein one of the functional groups is an alkyne group, wherein a terminal of the chain extender-derived part which is not linked to both terminals of the conjugated diene based monomer-derived repeating unit is an alkyne group, a manufacturing method thereof, a binder composition for a solid propellant comprising the same, a modified conjugated diene based binder for a solid propellant, and a manufacturing method thereof.