公开(公告)号：US20210189067A1

公开(公告)日：2021-06-24

申请号：US16079810

申请日：2018-01-31

申请人： LG CHEM, LTD.

发明人： Bi Oh RYU ,  Soon Yong PARK ,  Young Ji TAE ,  Young Seok PARK ,  Kwan Yeol PAEK

IPC分类号： C08G73/14 ,  C08J5/18

摘要： The present invention relates to a polyamideimide copolymer and a colorless and transparent polyamideimide copolymer film. The polyamideimide copolymer according to the present invention enables to provide a polyamideimide film having improved UV shielding function while exhibiting excellent scratch resistance and mechanical properties.

公开(公告)号：US20200024401A1

公开(公告)日：2020-01-23

申请号：US16488064

申请日：2018-04-10

申请人： LG CHEM, LTD.

发明人： Bi Oh RYU ,  Soon Yong PARK ,  Young Ji TAE ,  Young Seok PARK ,  Kwan Yeol PAEK ,  Il Hwan CHOI

IPC分类号： C08G73/14 ,  C08K5/3475 ,  C08J5/18

摘要： A poly(amide-imide) copolymer composition comprising an imide of a polyamic acid and an ultraviolet stabilizer, and a colorless and transparent poly(amide-imide) film including the composition. The poly(amide-imide) copolymer composition according to the present disclosure makes it possible to provide a poly(amide-imide) film exhibiting excellent scratch resistance, UV shielding property, and UV weather resistance while being colorless and transparent. This film can be suitably used as a cover film of various flexible or foldable devices.

公开(公告)号：US20190263095A1

公开(公告)日：2019-08-29

申请号：US16320356

申请日：2017-11-14

申请人： LG CHEM, LTD.

发明人： Kwan Yeol PAEK ,  Soon Yong PARK ,  Young Ji TAE ,  Young Seok PARK ,  Bi Oh RYU ,  Il Hwan CHOI

IPC分类号： B32B27/08 ,  B32B27/28 ,  B32B27/34 ,  C08L77/00 ,  C08L79/08 ,  C08K5/5415

摘要： The plastic laminated film has both excellent mechanical properties and UV weathering resistance while being colorless and transparent, and can be suitably used as cover films for various flexible or foldable devices.

公开(公告)号：US20190153161A1

公开(公告)日：2019-05-23

申请号：US16320623

申请日：2017-11-29

申请人： LG CHEM, LTD.

发明人： Bi Oh RYU ,  Kwan Yeol PAEK ,  Young Ji TAE ,  Soon Yong PARK ,  Young Seok PARK

IPC分类号： C08G73/14 ,  C08J5/18

摘要： A polyamideimide copolymer which is an imide of a polyamic acid resulting from copolymerizing an aromatic diamine monomer, an aromatic dianhydride monomer, and an aromatic dicarbonyl monomer and a colorless and transparent polyamideimide film including the polyamideimide copolymer. The polyamideimide copolymer according to the present disclosure makes it possible to provide a polyamideimide film exhibiting excellent scratch resistance while being colorless and transparent.