# US 2014/0193590 A1 · Surface-Modified, Exfoliated Nanoplatelets as Mesomorphic Structures in Solutions and Polymeric Matrices

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- Number: US 2014/0193590 A1
- Document ID: US20140193590A1
- Status: Published application
- Kind: A1
- Application number: 14/043,396
- Filed: 2013-10-01
- Published: 2014-07-10
- Earliest claimed: 2013-01-04
- Assignees: Kaneka Corporation; The Texas A&M University System
- Applicants: Kaneka Corporation; The Texas A&M University System
- Inventors: Hung-Jue Sue; Minhao Wong; Peng Li; Riichi Nishimura
- Web page: https://patentgrep.com/patent/US20140193590A1

## CPC

- C08J 7/048: Forming gas barrier coatings
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- C08J 5/005: {Reinforced macromolecular compounds with nanosized materials, e.g. nanoparticles, nanofibres, nanotubes, nanowires, nanorods or nanolayered materials}
- C08J 7/0427: {with only one layer of a composition containing a polymer binder (with more layers C08J7/042)}
- C08J 7/044: Forming conductive coatings; Forming coatings having anti-static properties
- C08J 7/05: Forming flame retardant coatings or fire resistant coatings
- C08J 7/06: with compositions not containing macromolecular substances
- C09C 1/0015: {Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings}
- C09C 1/44: Carbon
- C09C 3/08: Treatment with low-molecular-weight {non-polymer} organic compounds {(C09C3/006, C09C3/048 take precedence)}
- C09D 5/29: for multicolour effects
- C09D 5/36: Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
- C09D 133/00: Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D 163/00: Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D 175/00: Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C01P 2002/72: by d-values or two theta-values, e.g. as X-ray diagram
- C01P 2004/24: Nanoplates, i.e. plate-like particles with a thickness from 1-100 nanometer
- C01P 2004/64: Nanometer sized, i.e. from 1-100 nanometer
- C08J 2363/00: Characterised by the use of epoxy resins; Derivatives of epoxy resins
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- C09C: TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES (treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone C04B14/00, C04B18/00, C04B20/00); PREPARATION OF CARBON BLACK {; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS}
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

## Abstract

A method of manufacturing a nanocomposite having a continuous organic phase and oligomer-modified nanoplatelet mesomorphic structures, wherein the oligomer has a molecular weight of at least 100 g/mol.

## Claims

### Claim 1

A nanocomposite comprising
a continuous organic phase; and
oligomer-modified nanoplatelets;
wherein the oligomer has a molecular weight of at least 100 g/mol; and
wherein the oligomer-modified nanoplatelets form mesomorphic structures.

### Claim 2 (depends on 1)

The nanocomposite of claim 1, wherein continuous organic phase is at least one chosen from the group consisting of epoxy, epoxy derivatives, epoxy resins, ketones, acetone, methanol, ethanol, propanol, toluene, methyl ether ketone, urethane and derivatives, acrylic and derivatives, and aliphatic nitriles.

### Claim 3 (depends on 1)

The nanocomposite of claim 1, wherein the oligomer-modified nanoplatelets comprise at least one inorganic material chosen from the group consisting of natural and synthetic silicates such as montmorillonite, bentonite, laponite and phosphates, metal oxides, metal hydroxides, graphene and oxides, and derivatives thereof.

### Claim 4 (depends on 1)

The nanocomposite of claim 1, wherein the oligomer-modified nanoplatelets comprise a concentration of less than about 30 wt %.

### Claim 5 (depends on 1)

The nanocomposite of claim 1, wherein the oligomer comprises any chosen from the group of functional groups consisting of amines and amides.

### Claim 6 (depends on 5)

The nanocomposite of claim 5, wherein the oligomer comprises polyether monoamine.

### Claim 7 (depends on 1)

The nanocomposite of claim 1, wherein the mesomorphic structures further comprise exfoliated nanoplatelets.

### Claim 8 (depends on 7)

The nanocomposite of claim 7, wherein the mesomorphic structures comprise smectic or nematic phases of exfoliated nanoplatelets.

### Claim 9 (depends on 7)

The nanocomposite of claim 7, wherein the mesomorphic structures comprise a Bragg reflection within the wavelengths of visible light.

### Claim 10 (depends on 9)

The nanocomposite of claim 9, wherein the mesomorphic structures comprise a d-spacing of at least about 130 nm

### Claim 11 (depends on 1)

The nanocomposite of claim 1, further comprising modifiers or curing agents chosen from the group consisting of thermal, moisture and radiation curing agents.

### Claim 12 (depends on 11)

The nanocomposite of claim 11, wherein the continuous phase and modifiers or curing agents are configured for spray coating.

### Claim 13 (depends on 12)

The nanocomposite of claim 12, wherein the spray coated nanocomposite comprises less than about 0.1 relative gas/vapor permeability (P/P0) at 50% RH and 90% RH (relative humidity).

### Claim 14

A method for producing a nanocomposite comprising:
modifying a nanomaterial in solution;
concentrating the nanomaterial;
dispersing the nanomaterial in a solvent;
adding a product to the solvent; and
spray-coating the nanocomposite onto a substrate.

### Claim 15 (depends on 14)

The method of claim 14, wherein a nanomaterial comprises at least one inorganic material chosen from the group consisting of natural and synthetic silicates such as montmorillonite, bentonite, laponite and phosphates, metal oxides, metal hydroxides, graphene and graphene oxides, and derivatives thereof

### Claim 16 (depends on 15)

The method of claim 15, wherein modifying a nanomaterial comprises mixing a monomer or oligomer chosen from the group of functional groups consisting of amines and amides.

### Claim 17 (depends on 16)

The method of claim 16, wherein mixing an oligomer further comprises exfoliating the nanoplatelets.

### Claim 18 (depends on 17)

The method of claim 17, wherein exfoliating the nanoplatelets further comprises forming mesomorphic structures in solution.

### Claim 19 (depends on 15)

The method of claim 15, wherein adding a product to the solvent comprises adding at least one organic composition chosen from the group epoxy, epoxy derivatives, epoxy resins, ketones, acetone, methanol, ethanol, propanol, toluene, methyl ether ketone, urethane and derivatives, acrylic and derivatives, and aliphatic nitriles.

### Claim 20 (depends on 17)

The method of claim 17, wherein adding to a product further comprises adding at least one modifier or curing agent chosen from the group consisting of thermal, moisture and radiation curing agents.

### Claim 21 (depends on 14)

The method of claim 14, wherein spray-coating the nanocomposite comprises forming an iridescent coating having a Bragg reflection within the wavelengths of visible light.