Ethylene removal agent

• US 10,004,243 B2
• Filed: 07/27/2016
• Issued: 06/26/2018
• Est. Priority Date: 12/22/2011
• Status: Expired due to Fees

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Hajime, Evan Koon Lun Yuuji, Veeraraghavan, Badri
• Primary Examiner(s): WEIER, ANTHONY J
• Application Number:
  US15/220,859
• Publication Number:
  US 20160330986A1
• Time in Patent Office: 699 Days
• CPC Class Codes: A23B 7/152 in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O ; Elimination of such other gases
• CPC Class Codes: A23B 7/153 in the form of liquids or solids
• CPC Class Codes: A23V 2002/00 Food compositions, function of food ingredients or processes for food or foodstuffs
• CPC Class Codes: A23V 2200/00 Function of food ingredients
• CPC Class Codes: B01D 53/04 with stationary adsorbents B01D53/025 takes precedence
• CPC Class Codes: B01J 20/02 comprising inorganic material
• CPC Class Codes: B01J 20/0233 Compounds of Cu, Ag, Au
• CPC Class Codes: B01J 20/06 comprising oxides or hydroxides of metals not provided for in group B01J20/04
• CPC Class Codes: B01J 20/08 comprising aluminium oxide or hydroxide; comprising bauxite
• CPC Class Codes: B01J 20/103 comprising silica
• CPC Class Codes: B01J 20/18 Synthetic zeolitic molecular sieves
• CPC Class Codes: B01J 20/20 comprising free carbon; comprising carbon obtained by carbonising processes
• CPC Class Codes: B01J 20/26 Synthetic macromolecular compounds
• CPC Class Codes: B01J 20/261 obtained by reactions only involving carbon to carbon unsaturated bonds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds per se C08F
• CPC Class Codes: B01J 20/262 obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G
• CPC Class Codes: B01J 20/28004 Sorbent size or size distribution, e.g. particle size
• CPC Class Codes: B01J 20/28007 with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like carbon nanostructures B01J20/205
• CPC Class Codes: B01J 20/28016 Particle form
• CPC Class Codes: B01J 20/2805 Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane
• CPC Class Codes: B01J 20/3204 Inorganic carriers, supports or substrates
• CPC Class Codes: B01J 20/3236 : containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
• CPC Class Codes: B01J 20/327 : Polymers obtained by reactions involving only carbon to carbon unsaturated bonds
• CPC Class Codes: B01J 20/3272 : Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds
• CPC Class Codes: B01J 20/3293 : Coatings on a core, the core being particle or fiber shaped, e.g. encapsulated particles, coated fibers
• CPC Class Codes: B01J 20/3295 : Coatings made of particles, nanoparticles, fibers, nanofibers
• CPC Class Codes: B01J 21/18 : Carbon
• CPC Class Codes: B01J 2229/18 : to introduce other elements into or onto the molecular sieve itself
• CPC Class Codes: B01J 23/52 : Gold
• CPC Class Codes: B01J 23/62 : with gallium, indium, thallium, germanium, tin or lead
• CPC Class Codes: B01J 23/66 : Silver or gold
• CPC Class Codes: B01J 23/89 : combined with noble metals
• CPC Class Codes: B01J 27/12 : Fluorides
• CPC Class Codes: B01J 29/068 : Noble metals
• CPC Class Codes: B01J 35/23 : in a colloidal state
• CPC Class Codes: B01J 35/393 : Metal or metal oxide crystallite size
• CPC Class Codes: B01J 35/397 : Egg shell like
• CPC Class Codes: B01J 35/40 : characterised by dimensions, e.g. grain size in a colloidal state B01J35/23; crystallite size B01J35/77
• CPC Class Codes: B01J 35/58 : Fabrics or filaments
• CPC Class Codes: B01J 37/0217 : Pretreatment of the substrate before coating
• CPC Class Codes: B01J 37/0221 : of particles
• CPC Class Codes: B01J 37/26 : Fluorinating
• CPC Class Codes: B01J 37/347 : Ionic or cathodic spraying; Electric discharge

Abstract

A composite particle having a fluorinated surface and a discontinuous layer of gold nanoparticles disposed on the fluorinated surface, articles that include such particles, and methods of using the particles and the articles for removal of ethylene.

Claims

1. A composite particle comprising:

a fluorinated surface; and

a discontinuous layer of gold nanoparticles disposed on the fluorinated surface;

wherein the discontinuous layer of gold nanoparticles comprises a plurality of island-like regions of the gold nanoparticles;

wherein the fluorinated surface is a fluorinated coating on a core particle; and

wherein the core particle is suitable for removing moisture.

2. The composite particle of claim 1, wherein the core particle comprises any of carbonaceous material, zeolite, or metal oxide.

3. The composite particle of claim 1, wherein the core particle comprises activated carbon.

4. The composite particle of claim 1, wherein the composite particle has an aspect ratio in a range of from 1:

10000 to 1;

1.

5. The composite particle of claim 1, wherein the composite particle has a size in a range of from 0.1 micrometer to 10000 micrometers.

6. The composite particle of claim 1, wherein the fluorinated surface comprises polytetrafluoroethylene.

7. The composite particle of claim 1, wherein the core particle is an adsorbent for volatile organic compounds.

8. The composite particle of claim 1, wherein the discontinuous layer of gold nanoparticles is in a range of 0.05 wt % to 5 wt % relative to the composite particle.

9. The composite particle of claim 1, having a powder volume resistivity value of at least 10⁶ ohm.cm.

10. An article comprising:

a substrate;

a plurality of composite particles disposed on a surface of the substrate, disposed within the substrate, or both;

wherein individual composite particles in the plurality of composite particles comprise;

a fluorinated surface; and

a discontinuous layer of gold nanoparticles disposed on the fluorinated surface;

wherein the discontinuous layer of gold nanoparticles comprises a plurality of island-like regions of the gold nanoparticles; and

wherein the substrate is a container, and the surface of the substrate on which the plurality of the composite particles are deposited is within the container.

11. The article of claim 10, wherein the substrate is in a form of any of a sheet, a film, a nonwoven web, or a plurality of particles.

12. The article of claim 10, wherein the container comprises any of a permeable bag, a tube defining an inlet and an outlet, or a nonwoven web.