公开(公告)号：US11692055B2

公开(公告)日：2023-07-04

申请号：US17103479

申请日：2020-11-24

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Sung Woo Hong ,  Sung Koo Lee ,  Pyong Hwa Hong ,  Gyeong Min Moon ,  Jin Sil Kim

IPC: C08G18/08 ,  C08G18/62 ,  C08G18/73 ,  C08J5/18 ,  B32B27/40 ,  C08L75/12 ,  C08G18/79 ,  C09D175/04

CPC classification number: C08G18/0833 ,  B32B27/40 ,  C08G18/0814 ,  C08G18/6225 ,  C08G18/6229 ,  C08G18/6283 ,  C08G18/73 ,  C08G18/792 ,  C08J5/18 ,  C08L75/12 ,  C09D175/04

Abstract: The present disclosure relates to a composition for forming a polyurethane film, a polyurethane film derived from the composition and an article comprising a substrate and the polyurethane film, and the composition for forming a polyurethane film comprises an OH group-containing polymer; a curing agent; and an amphoteric ion-based polymer.

公开(公告)号：US11535693B2

公开(公告)日：2022-12-27

申请号：US17101812

申请日：2020-11-23

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Sung Woo Hong ,  Sung Koo Lee ,  Pyong Hwa Hong ,  Jin Sil Kim ,  Gyeong Min Moon ,  Kiseung Kim

IPC: C08G18/12 ,  C08L75/12 ,  C08G18/32 ,  C08G18/62 ,  C08G18/38 ,  C09D175/04 ,  C08G18/65 ,  C08G18/75 ,  C08G18/10 ,  C08G18/64 ,  C08G18/79

Abstract: Disclosed is a composition for forming a polyurethane film with improved reaction stability, comprising an OH group-containing polymer; an isocyanate-based compound as a curing agent; and an alicyclic urea diol compound having two urea groups and an OH group at two terminals, and a polyurethane film with improved self-healable property from tear, derived from the composition.