# US 2014/0196847 A1 · Conductive aqueous-based adhesive compositions and methods of use thereof

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- Number: US 2014/0196847 A1
- Document ID: US20140196847A1
- Status: Published application
- Kind: A1
- Application number: 14/154,284
- Filed: 2014-01-14
- Published: 2014-07-17
- Earliest claimed: 2013-01-15
- Assignees: Rainforest Technologies, LLC
- Inventors: Brent Bergherm
- Web page: https://patentgrep.com/patent/US20140196847A1

## CPC

- C09J 9/02: Electrically-conducting adhesives
- C08K 3/04: Carbon
- C09J 133/04: Homopolymers or copolymers of esters {(C09J143/04 takes precedence)}
- C08L 2201/54: Aqueous solutions or dispersions
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

Described herein are conductive aqueous-based adhesive compositions that comprise (a) an aqueous-based adhesive and (b) carbon black, graphite, or a combination thereof. The aqueous-based adhesive compositions are particularly effective at preventing the buildup of static charge and at reducing electrostatic discharge events. In certain aspects, the aqueous-based adhesive compositions can be mixed with propellants and applied to substrates using an aerosol delivery system. The aqueous-based adhesive compositions described herein can readily be adhered to any substrate such as, for example, floors, walls, ceilings, and the like.

## Claims

### Claim 1

An aqueous-based adhesive composition comprising a mixture of:
(a) an aqueous-based adhesive, and
(b) carbon black, graphite, or a combination thereof.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the aqueous-based adhesive comprises an acrylic emulsion, an acrylic copolymer emulsion, a carboxylated SBR emulsion, or a styrene acrylic copolymer emulsion.

### Claim 3 (depends on 1)

The composition of claim 1, wherein the aqueous-based adhesive comprises one or more acrylates.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the aqueous-based adhesive comprises an anionic acrylate.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the aqueous-based adhesive is from 40 to 90% by weight of the composition.

### Claim 6 (depends on 1)

The composition of claim 1, wherein the aqueous-based composition further comprises a nonionic surfactant, an anionic surfactant, or a combination thereof.

### Claim 7 (depends on 6)

The composition of claim 6, wherein the nonionic surfactant comprises an ethoxylated alcohol.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the carbon black is a powder, granules, or a combination thereof.

### Claim 9 (depends on 1)

The composition of claim 1, wherein at least 90% of the carbon black has a particle size less than 20 μm.

### Claim 10 (depends on 1)

The composition of claim 1, wherein the carbon black has a BET nitrogen surface area of 10 to 1,300 m2/g as measured by ASTM D3037.

### Claim 11 (depends on 1)

The composition of claim 1, wherein the carbon black has an Oil Absorption Number of 100 to 500 ml/100 g as measured by ASTM D2414.

### Claim 12 (depends on 1)

The composition of claim 1, wherein the carbon black has a Crushed Oil Absorption Number of 50 to 500 ml/100 g as measured by ASTM D3493.

### Claim 13 (depends on 1)

The composition of claim 1, wherein the amount of carbon black is from 1 to 10% by weight of the composition.

### Claim 14 (depends on 1)

The composition of claim 1, wherein the graphite comprises natural graphite, synthetic graphite, or a combination thereof.

### Claim 15 (depends on 13)

The composition of claim 13, wherein the graphite is from 3 to 15% by weight of the composition.

### Claim 16 (depends on 1)

The composition of claim 1, wherein the graphite has a particle size range from 10 μm to 150 μm.

### Claim 17 (depends on 1)

The composition of claim 1, wherein the composition further comprises a stabilizer, a defoamer, a filler, a biocide, a fungicide, a preservative, a hydrocarbon or mineral oil, or any combination thereof.

### Claim 18 (depends on 1)

The composition of claim 1, wherein the composition is substantially free of a volatile organic compound.

### Claim 19

An aqueous-based adhesive composition produced by the process comprising admixing:
(a) an aqueous-based adhesive, and
(b) carbon black, graphite, or a combination thereof.

### Claim 20 (depends on 1)

An adhesive composition comprising the aqueous-based adhesive composition of claim 1 and a propellant.

### Claim 21 (depends on 20)

The composition of claim 20, wherein the propellant comprises a fluorocarbon, an inert gas, a hydrocarbon gas, a hydrofluoroalkane or hydrofluoroalkene, a volatile organic compound, or any combination thereof.

### Claim 22 (depends on 20)

The composition of claim 20, wherein the propellant is 1,1,1,2-tetrafluoroethane or 1,1-difluoroethane.

### Claim 23 (depends on 20)

The composition of claim 20, wherein the propellant comprises an inert gas.

### Claim 24 (depends on 20)

The composition of claim 20, wherein the propellant comprises a blend of two or more propellants.

### Claim 25 (depends on 20)

The composition of claim 20, wherein the propellant is a single propellant.

### Claim 26 (depends on 20)

The composition of claim 20, wherein the composition is from 10 to 90% by weight of adhesive and from 10 to 90% by weight propellant.

### Claim 27 (depends on 1)

A method for adhering an article to a substrate, comprising (a) applying the aqueous-based adhesive composition of claim 1 to the surface of the substrate and/or article and (b) applying the article to the substrate.

### Claim 28 (depends on 27)

The method of claim 27, wherein the article comprises carpet, carpet padding, athletic surfaces, vinyl composite tile (VCT), vinyl tile, wall tile, resilient sheet goods, ceramic tile, wood flooring, wall covering, synthetic flooring material, cove base, a laminate, linoleum, a wall panel, a fiber reinforced plastic (FRP), or floor covering padding.

### Claim 29 (depends on 27)

The method of claim 27, wherein the substrate comprises Styrofoam, textile fabrics, natural and synthetic fibers, Formica, wood, metals, fiberglass, concrete, sheet rock, masonry materials, plastic, vinyl, glass, leather, or rubber.

### Claim 30 (depends on 27)

The method of claim 27, wherein the article comprises an ESD flooring material.

### Claim 31 (depends on 27)

The method of claim 27, wherein the conductive adhesive composition facilitates transmission of any static buildup in an ESD flooring system to the properly connected common ground point.
