公开(公告)号：US20230367235A1

公开(公告)日：2023-11-16

申请号：US18315471

申请日：2023-05-10

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Yong ZHU ,  Yubo CHENG ,  Shiwei QIN ,  Chenmin LIU

IPC: G03G5/05 ,  G03G5/147

CPC classification number: G03G5/0592 ,  G03G5/14752 ,  G03G5/14756

Abstract: The present invention relates to an electrophotographic photoreceptor, which includes a conductive substrate; an undercoat layer disposed on the conductive substrate and capable of conforming to the contour of the conductive substrate, a photoconductor charge generation layer disposed on the undercoat layer and capable of conforming to the contour of the undercoat layer, and a charge transport layer disposed on the photoconductor charge generation layer. The charge transport layer contains a charge transport material, a binder resin, a fluorine-containing resin, and a plurality of polyhedral oligomeric silsesquioxane (POSS) particles evenly dispersed in the binder resin, and the POSS particles are interconnected with at least one fluorine group and at least two non-fluoridated groups. By adding approximately 1% of the POSS particles and lubricant nanoparticles, a life-time improvement of at least 20% is achieved for an OPC drum.

公开(公告)号：US20230088192A1

公开(公告)日：2023-03-23

申请号：US17903055

申请日：2022-09-06

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Shiwei QIN ,  Yong ZHU ,  Yubo CHENG ,  Jianping HAN ,  Chui Wan TSE ,  Chenmin LIU

IPC: C03C17/30 ,  C03C21/00

Abstract: A foldable ultrathin glass article includes an ultrathin chemically-tempered foldable glass substrate having a thickness of approximately 100 microns or less and a compressive surface stress of at least 100 MPa. A single-layer hard coating is bonded to the first and/or second surface of the ultrathin tempered glass foldable substrate without an adhesive layer. The hard coating includes at least one silsesquioxane having a silicon-oxygen core framework directly bonded to the ultrathin tempered glass foldable substrate. The impact resistance defined by a maximum pen drop height without glass failure is at least four times greater than the ultrathin tempered glass foldable substrate without the hard coating. The hard coating has a surface hardness of at least 7H surface hardness and has a hydrophobic surface with a water contact angle of at least 100°. The coating has a transparency of at least 98 percent compared to uncoated substrates.

公开(公告)号：US20210189173A1

公开(公告)日：2021-06-24

申请号：US17114426

申请日：2020-12-07

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Yong ZHU ,  Jianping HAN ,  Yubo CHENG ,  Shiwei QIN ,  Lanqi HUANG ,  Chenmin LIU

IPC: C09D183/04 ,  C08J5/18

Abstract: The invention relates to a thoroughly modified, functionalized polymeric hard coating material represented by one of the following formulae for a bendable, transparent and photo/thermal curable coating film: [R1RaSiO3/2]  Formula (1); [R1R2RaSiO3/2]  Formula (2). This invention further relates to the synthetic method and application of the thoroughly modified, functionalized polymeric hard coating material. The thoroughly modified, functionalized polymeric hard coating material-containing composition for a coating exhibits higher surface hardness of at least 6H on flexible substrates, higher surface hardness of at least 9H on rigid substrates, and a certain degree of flexibility, with potential properties such as a light transparency of at least 85% and/or an antimicrobial effectiveness of at least 99%, and/or anti-scratch ability.