公开(公告)号：US20220361486A1

公开(公告)日：2022-11-17

申请号：US17852307

申请日：2022-06-28

Applicant: HRL Laboratories, LLC

Inventor： Adam GROSS ,  Andrew NOWAK ,  Michael VENTULETH ,  Stella FORS ,  Jason GRAETZ ,  Ashley DUSTIN ,  John VAJO

IPC: A01N25/10 ,  C09D5/14 ,  A01N33/12

Abstract: Antimicrobial coatings that are transparent and not easily stained are disclosed. Some variations provide a transparent antimicrobial structure comprising: a discrete solid structural phase comprising a solid structural polymer with a glass-transition temperature from 25° C. to 300° C.; a continuous transport phase interspersed within the discrete solid structural phase, wherein the continuous transport phase comprises a solid transport material; and an antimicrobial agent contained within the continuous transport phase, wherein the antimicrobial agent is dissolved in a fluid and/or in a solid solution with the continuous transport phase. The discrete solid structural phase and the continuous transport phase are separated by an average phase-separation length selected from 100 nanometers to 500 microns. This invention resolves the trade-off between antifouling and fluorinated material content. This invention also resolves the trade-off between transport of absorbed molecules and transparency. The result is an improved antimicrobial structure that is both antifouling and transparent.

公开(公告)号：US20230090180A1

公开(公告)日：2023-03-23

申请号：US17989199

申请日：2022-11-17

Applicant: HRL Laboratories, LLC

Inventor： Michael VENTULETH ,  Andrew NOWAK ,  Adam GROSS

IPC: C09D171/02 ,  C08G65/00 ,  C08L101/02 ,  C09D201/02 ,  C08G65/22 ,  C08G81/00

Abstract: Disclosed herein is a shelf-stable, two-part formula for making an antimicrobial biphasic polymer. Some variations provide a two-part formula for fabricating a biphasic polymer, wherein the two-part formula consists essentially of (A) a first liquid volume, wherein the first liquid volume comprises: a structural phase containing a solid structural polymer; a transport phase containing a solid transport polymer; a chain extender; a curing catalyst; a first solvent; and (B) a second liquid volume that is volumetrically isolated from the first liquid volume, wherein the second liquid volume comprises: a crosslinker that is capable of crosslinking the solid structural polymer with the solid transport polymer; and a second solvent. An antimicrobial agent (e.g., quaternary ammoniums salts) may be contained in the first liquid volume or in the second liquid volume. Methods of making and using the antimicrobial biphasic polymer are described.