公开(公告)号：US11299578B2

公开(公告)日：2022-04-12

申请号：US16618582

申请日：2018-07-11

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Sung Yeon Hwang ,  Jeyoung Park ,  Dong Yeop Oh ,  Jong Geon Jegal ,  Seon Mi Kim ,  Hyeon Yeol Jeon

IPC: C08G18/38 ,  C08G18/24 ,  C08G18/48 ,  C08G18/66 ,  C08G18/72 ,  C08G18/73 ,  C08G18/75 ,  C08J5/18

Abstract: A self-restoring polyurethane-based polymer obtained by polymerization of a composition containing an aromatic disulfide diol represented by Chemical Formula, HO—Ar1—S—S—Ar2—OH, an alicyclic polyisocyanate, and a polyol. Ar1 and Ar2 each are independently a substituted or unsubstituted C6-C30 arylene group. The composition satisfies Equation, 0.1≤M[disulfide]/M[OH]. M[disulfide] is a total mole number of the aromatic disulfide diol in the composition, and M[OH] is a total mole number of the aromatic disulfide diol and the polyol in the composition.

公开(公告)号：US20220064387A1

公开(公告)日：2022-03-03

申请号：US17082207

申请日：2020-10-28

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Korea Research Institute Of Chemical Technology

Inventor： Chae Hwan Hong ,  Jin Woo Choung ,  Dong Yeop Oh ,  Seul A Park ,  Hyeon Yeol Jeon ,  Jeyoung Park ,  Sung Yeon Hwang

IPC: C08J5/18

Abstract: Disclosed is a composite film including a nanocellulose film including cellulose nanofibers stacked in a structure including a plurality of pores; and a polycarbonate resin filling the pores in the nanocellulose film and including a repeating unit that comprises a moiety derived from isosorbide.