公开(公告)号：US12202947B2

公开(公告)日：2025-01-21

申请号：US17042239

申请日：2018-04-09

Applicant: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED

Inventor： Wenjun Meng ,  Sau Kuen Connie Kwok ,  Yueying Chen ,  Mingyu Zhang

IPC: C08J3/22 ,  C08K5/00 ,  C08K5/103 ,  C08L55/02

Abstract: A germ-repellent plastic contains an anti-biofouling compound, and a basic plastic. The anti-biofouling compound is optionally selected from the group of a polyol, a polyether polyol, a polyol derivative, and a combination thereof; or the anti-biofouling compound is selected from the group consisting of a polyether, a poly (ethylene glycol) ether, a polysorbate, and a combination thereof; or the anti-biofouling compound is selected from the group consisting of poly (ethylene glycol) sorbitan monolaurate, poly (ethylene glycol) sorbitan monooleate, poly (ethylene glycol) sorbitol hexaoleate, ceteareth, and a combination thereof. The basic plastic is not a blend of a low-density polyethylene polymer and an ethyl vinyl acetate copolymer, a blend of a polypropylene polymer and an ethyl vinyl acetate copolymer, a blend of polyolefin elastomer polymers and a polyvinyl chloride polymer. A method for manufacturing such a germ-repellent plastic and a germ-repellent plastic item are also described.

公开(公告)号：US11160276B2

公开(公告)日：2021-11-02

申请号：US16710112

申请日：2019-12-11

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Wenjun Meng ,  Yueying Chen ,  Yui Ting Richard Lau ,  Sau Kuen Connie Kwok ,  Sheung Yin Li

IPC: A01N37/36 ,  A01N25/34 ,  C08J3/22 ,  B29B11/10 ,  B29C51/00 ,  B29B9/10 ,  B29B9/06 ,  B29B9/12 ,  B29B9/16 ,  C08J3/00 ,  B29B7/46 ,  C08J5/18 ,  B29B7/72 ,  B29K23/00 ,  B29K105/00 ,  B29C51/02 ,  B29B7/82 ,  B29C48/00

Abstract: Provided herein is a method for preparing antimicrobial thermoplastic resins and products thereof.

公开(公告)号：US10525614B2

公开(公告)日：2020-01-07

申请号：US15318585

申请日：2016-01-08

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Yiu Ting Richard Lau ,  Sau Kuen Connie Kwok ,  Wenjun Meng ,  Sheung Yin Li ,  Yueying Chen

IPC: B29B9/10 ,  B29B7/38 ,  B29B9/06 ,  B29B9/12 ,  B29C51/02 ,  A01N25/10 ,  C08J3/22 ,  B29K105/00 ,  B29C48/00

Abstract: A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and/or surface migrated to the surface after product forming in order to minimize adsorption and/or colonization of bacteria.

公开(公告)号：US10548314B2

公开(公告)日：2020-02-04

申请号：US15382792

申请日：2016-12-19

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Yiu Ting Richard Lau ,  Sau Kuen Connie Kwok ,  Wenjun Meng ,  Sheung Yin Li ,  Yueying Chen

IPC: A01N37/36 ,  A01N25/34 ,  C08J3/22 ,  B29B11/10 ,  B29C51/00 ,  B29B9/10 ,  B29K23/00

Abstract: A built-in and process-adaptive formulation of antimicrobial commodity thermoplastic resins with mixed compositions comprising of a polymer, a backbone linker, and a non-labile antifouling and biocompatible coupling agent which is melt-processable and enabled to be manufactured into finished products in the form of solid, monolith, tube, composite, fiber, film, sheet and varnish without the prerequisite of biocides or antimicrobial additives is disclosed. The said formulation is adapted to thermoforming and thermal curing processes including but not limited to melt compounding, spinning, extrusion, molding, compression foaming and drawing. The antimicrobial property is attributed to the persistent formation of a non-stick bacteria-repellent tethered layer in which the antifouling component of the said formulation is heterogeneously phase separated and/or surface migrated to the surface after product forming in order to minimize adsorption and/or colonization of bacteria.