# US 2020/0399450 A1 · An elastomeric composition

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- Number: US 2020/0399450 A1
- Document ID: US20200399450A1
- Status: Published application
- Kind: A1
- Application number: 16/968,454
- Filed: 2019-02-08
- Published: 2020-12-24
- Earliest claimed: 2018-02-09
- Assignees: Inoova Material Science Sdn Bhd
- Applicants: Inoova Material Science Sdn Bhd
- Inventors: Siong Hui KHOO
- Web page: https://patentgrep.com/patent/US20200399450A1

## CPC

- C08K 5/02: Halogenated hydrocarbons {(C08K5/0091 takes precedence)}
- C08L 11/02: Latex
- A61B 42/10: Surgical gloves
- C08K 3/22: of metals
- C08K 3/36: Silica
- C08K 5/0025: {Crosslinking or vulcanising agents; including accelerators}
- C08K 5/005: {Stabilisers against oxidation, heat, light, ozone}
- C08K 5/053: Polyhydroxylic alcohols
- C08K 5/09: Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K 5/17: Amines; Quaternary ammonium compounds
- C08K 5/5435: containing oxygen in a ring
- C08L 9/04: Latex
- C08L 9/08: Latex
- C08L 27/18: Homopolymers or copolymers or tetrafluoroethene
- C08L 83/04: Polysiloxanes
- A41D 19/0058: {Three-dimensional gloves}
- C08K 2003/2296: {of zinc}
- C08L 2207/04: Thermoplastic elastomer
- C08L 2312/08: by silane
- 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)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A41D: OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES

## Abstract

The present application relates to a crosslinked composition. The composition comprises an elastomer, a silane compound, a liquid fluorocarbon and a crosslinker, preferably an epoxy silane. The crosslinked composition may be used in the production of any elastomeric article manufactured through a dipping process, such as a glove.

## Claims

### Claim 1

A composition comprising an elastomer, a liquid fluorocarbon, a silane compound, and a crosslinker having a formula of
wherein Y is a functional group selected from primary and substituted amino, epoxy, methacryl, vinyl, mercapto, urea, or isocyanate;
R is a linking group between the functional group Y and a silicon atom, wherein R is propylene or ethyl;
Si is the silicon atom; and
X3 are hydrolysable groups selected from methoxy, ethoxy, or isopropoxy.

### Claim 2 (depends on 1)

The composition according to claim 1, comprising 0.5 to 10% weight of the crosslinker.

### Claim 3 (depends on 1)

The composition according to claim 1, wherein the crosslinker is an epoxy silane.

### Claim 4 (depends on 3)

The composition according to claim 3, wherein the epoxy silane is [3-(2,3-epoxypropoxy)propyl]trimethoxysilane or β(3,4-epoxycyclohexyl)-ethyltriethoxysilane.

### Claim 5 (depends on 4)

The composition according to claim 4, wherein [3-(2,3-epoxypropoxy)propyl]trimethoxysilane comprises 0.3 to 1% weight of methanol.

### Claim 6 (depends on 1)

The composition according to claim 1, comprising 1 to 5% weight of the silane compound.

### Claim 7 (depends on 1)

The composition according to claim 1, wherein the silane compound comprises silicon dioxide and 2-amino-2 methylpropanol, surfactant and dispersant, and water.

### Claim 8 (depends on 7)

The composition according to claim 7, comprising 10 to 30% weight of silicon dioxide, 1 to 3% weight of 2-amino-2-methylpropanol, 2 to 5% weight of liquid surfactant, and 62 to 87% weight of water.

### Claim 9 (depends on 1)

The composition according to claim 1, comprising 0.5 to 15% weight of liquid fluorocarbon.

### Claim 10 (depends on 1)

The composition according to claim 1, wherein the liquid fluorocarbon comprises liquid fluorocarbon, liquid emulsifier, dipropylene glycol, acetic acid, and water.

### Claim 11 (depends on 10)

The composition according to claim 10, wherein the liquid fluorocarbon comprises 25 to 30% weight of liquid fluorocarbon and liquid emulsifier, 8 to 12% weight of dipropylene glycol, 0.1 to 0.2% weight of acetic acid, and 57.8 to 66.9% weight of water.

### Claim 12 (depends on 1)

The composition according to claim 1, wherein the liquid fluorocarbon is tetrafluoroethylene.

### Claim 13 (depends on 1)

The composition according to claim 1, comprising 51 to 98% weight of elastomer.

### Claim 14 (depends on 1)

The composition according to claim 1, wherein the elastomer comprises any one of polyurethane rubber, synthetic polyisoprene rubber, natural rubber, acrylonitrile butadiene rubber, styrene butadiene rubber, butadiene rubber, or polychloroprene.

### Claim 15 (depends on 14)

The composition according to claim 14, wherein the elastomer selected from acrylonitrile butadiene rubber, polychloroprene rubber, styrene butadiene rubber, or butadiene rubber, comprises carboxylic acid.

### Claim 16 (depends on 15)

The composition according to claim 15, comprising 2 to 8% weight of carboxylic acid.

### Claim 17 (depends on 14)

The composition according to claim 14, wherein the elastomer selected from polychloroprene comprises an activator.

### Claim 18 (depends on 17)

The composition according to claim 17, comprising 0.1 to 3% weight of the activator.

### Claim 19 (depends on 1)

The composition according to claim 1, comprising 0.1 to 5% weight of antioxidant.

### Claim 20 (depends on 1)

The composition according to claim 1, comprising 2 to 3% weight of liquid surfactant.

### Claim 21 (depends on 1)

The composition according to claim 1 for the production of an elastomeric article manufactured through a dipping process.

### Claim 22 (depends on 1)

The composition according to claim 1 for the production of a glove.

### Claim 23 (depends on 1)

A method for producing a glove by applying the composition according to claim 1, wherein the glove includes an elongation at break of 800-1050%.

### Claim 24 (depends on 1)

A method for producing a glove by applying the composition according to claim 1, wherein the glove includes a static coefficient of friction of 1.3 to 1.4μs.

### Claim 25 (depends on 1)

A method for producing a glove by applying the composition according to claim 1, wherein the glove includes a modulus 500% of 4 to 7.5 mPa.

### Claim 26 (depends on 1)

A method for producing a glove by applying the composition according to claim 1, wherein the glove includes a stress relaxation of 58.22 to 69.97% at 5 minutes.
