公开(公告)号：US20200339797A1

公开(公告)日：2020-10-29

申请号：US16851331

申请日：2020-04-17

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Peter VOLLENBERG ,  Christopher Luke HEIN ,  Hao ZHOU ,  Mark VAN DER MEE

IPC: C08L33/12 ,  C08L69/00 ,  C08L83/04

Abstract: Thermoplastic compositions include: from about 62 wt % to about 99 wt % poly(methyl methacrylate) (PMMA) or copolymers thereof; and from about 1 wt % to about 38 wt % of a poly(carbonate-siloxane) copolymer having a siloxane content of from about 25 wt % to about 45 wt %. The compositions are scratch resistant. Scratch resistance may be determined as comprising a scratch depth of less than 20 micron (μm) as measured in accordance with the Erichsen scratch hardness test at a force of 4 Newton (N). Articles including the thermoplastic composition are also described.

公开(公告)号：US20200332180A1

公开(公告)日：2020-10-22

申请号：US16643129

申请日：2018-08-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Bing ZHOU ,  Jan Henk KAMPS ,  Christopher Luke HEIN ,  Manojkumar CHELLAMUTHU ,  Hao ZHOU ,  Adel Fawzy BASTAWROS ,  Pooja BAJAJ

IPC: C09K11/02 ,  C08L69/00 ,  C08J3/22 ,  C08J5/18 ,  B29C48/08

Abstract: Disclosed is a quantum dot composition comprising: a polycarbonate resin, a polycarbonate copolymer resin, or a combination thereof; a quantum dot concentrate including a plurality of nanoparticle quantum dots and an acrylic polymer, a methacrylic polymer, or a combination thereof; and a compatibilizer for promoting dispersion of the nanoparticle quantum dots in the quantum dot composition. The compatibilizer includes a transesterification catalyst, a physical compatibilizer, a plurality of semiconductor nanopartides passivated with a metal oxide, or a combination thereof. Further disclosed is a method for making a quantum dot composition, the method including: forming a quantum dot concentrate by combining a plurality of nanoparticle quantum dots with an acrylic polymer, a methacrylic polymer or a combination thereof; and combining the quantum dot concentrate with a compatibilizer and a polycarbonate resin, a polycarbonate copolymer resin, or a combination thereof.