公开(公告)号：US20180208753A1

公开(公告)日：2018-07-26

申请号：US15415426

申请日：2017-01-25

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Yiu Ting Richard LAU ,  You WU ,  Yueying CHEN ,  Wenjun MENG ,  Sau Kuen Connie KWOK

IPC: C08L23/14 ,  C08L23/12 ,  C08L53/00 ,  C08L33/12 ,  B29B7/88 ,  B29B7/00 ,  B29B9/10 ,  B29C41/00 ,  B29C45/00 ,  B29C47/00 ,  B29C49/00

CPC classification number: C08L23/14 ,  B29B7/005 ,  B29B7/88 ,  B29B9/06 ,  B29B9/12 ,  B29C41/003 ,  B29C48/022 ,  B29C48/40 ,  B29C48/919 ,  B29C49/0005 ,  B29K2101/12 ,  B29K2105/0005 ,  B29K2995/0026 ,  C08L23/12 ,  C08L33/12 ,  C08L2201/08 ,  C08L2201/10 ,  C08L2205/05 ,  C08L2205/06 ,  C08L2310/00 ,  C08K2003/2227 ,  C08L23/0815

Abstract: This invention discloses a transparent standalone resin or masterbatch concentrate composition and manufacturing method of transforming commercial transparent grade base thermoplastics into anti-biofouling resins through extrusion or any similar hot melt mixing processes. The re-compound solids enable a number of product reforming processes, including but not limited to thermoforming, profile extrusion, injection molding, blow molding, blow filming, film casting, and spinning into articles of different shapes and geometries or overmolding on plastic substrates that can resist surface adsorption of microbes, mammalian cells, proteins, peptides, nucleic acids, steroids and other cellular constituents after solidification. The articles formed thereof additionally exhibit mechanical reinforcement and no leaching while retain the optical clarity of the base thermoplastics in the same product form as quantified in terms of the light transmittance and haze.

公开(公告)号：US20170129139A1

公开(公告)日：2017-05-11

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 ,  C08J3/22 ,  B29B9/12 ,  B29C51/02 ,  B29B7/38 ,  B29B9/06

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.