# US 2018/0180087 A1 · Fastener sealing material and method

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- Number: US 2018/0180087 A1
- Document ID: US20180180087A1
- Status: Published application
- Kind: A1
- Application number: 15/844,985
- Filed: 2017-12-18
- Published: 2018-06-28
- Earliest claimed: 2016-12-22
- Assignees: Nylok Corporation
- Applicants: Nylok LLC
- Inventors: Jeffrey M. Stupar; Pakkatorn Jaroenwatthanawinyoo
- Web page: https://patentgrep.com/patent/US20180180087A1

## CPC

- F16B 39/225: {by means of a settable material}
- C08L 33/08: Homopolymers or copolymers of acrylic acid esters
- C09J 4/00: Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16}
- C09J 4/06: {Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond} in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
- C09J 133/00: Adhesives 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; Adhesives based on derivatives of such polymers
- C09J 133/08: Homopolymers or copolymers of acrylic acid esters
- C09J 175/16: having terminal carbon-to-carbon unsaturated bonds
- F16B 33/004: {Sealing; Insulation (by means of washers F16B43/001)}
- B05D 3/067: {Curing or cross-linking the coating}
- B05D 3/142: {Pretreatment}
- B05D 2202/10: based on Fe
- B05D 2258/00: Small objects (e.g. screws)
- C08G 2190/00: Compositions for sealing or packing joints
- C09J 2433/00: Presence of (meth)acrylic polymer
- F16B 19/008: {with sealing means}
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- 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)
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

A fastener sealing material for application to miniature and sub-miniature fasteners is formulated from a liquid applied acrylate material. The liquid applied acrylate material is cured using an ultraviolet or LED light source, without the use of heat. When applied to a fastener, the fastener sealing material can form a locking material for the fastener. A method of making a fastener with a sealing material thereon is also disclosed.

## Claims

### Claim 1

A fastener sealing material for application to miniature and sub-miniature fasteners, comprising:
a liquid applied acrylate material, the liquid applied acrylate material cured using an ultraviolet or LED light source and without the use of heat.

### Claim 2

The fastener sealing material, wherein a viscosity of the material is less than about 1500 centipoise.

### Claim 3 (depends on 2)

The fastener sealing material of claim 2, wherein the viscosity of the material is about 500-1500 centipoise.

### Claim 4 (depends on 1)

The fastener sealing material of claim 1, wherein the acrylate material is one or a combination of acrylated urethanes and acrylated polyesters.

### Claim 5 (depends on 1)

The fastener sealing material of claim 1 including a super hydrophobic material.

### Claim 6 (depends on 1)

The fastener sealing material of claim 1 including a photoinitiator.

### Claim 7 (depends on 1)

The fastener sealing material of claim 1 including a pigment, the pigment present in an amount so as to not impede curing the material.

### Claim 8 (depends on 1)

The fastener sealing material of claim 1 including a flow modifier.

### Claim 9 (depends on 8)

The fastener sealing material of claim 8, wherein the flow modifier decreases the viscosity of the sealing material.

### Claim 10 (depends on 8)

The fastener sealing material of claim 8, wherein the flow modifier increases the viscosity of the sealing material.

### Claim 11 (depends on 1)

The fastener sealing material of claim 1 including a heat resistive additive to reduce further curing of the material after it is cured and when subjected to elevated temperatures.

### Claim 12 (depends on 1)

The fastener sealing material of claim 1 wherein the material cures on the fastener in no more than about 2-15 seconds when subject to ultraviolet or LED light.

### Claim 13 (depends on 12)

The fastener sealing material of claim 12 wherein the material cures on the fastener in no more than about 2-5 seconds when subject to ultraviolet or LED light.

### Claim 14 (depends on 12)

The fastener sealing material of claim 12 wherein the material cures on the fastener at a temperature of no more than about 151 deg.F.

### Claim 15 (depends on 1)

The fastener sealing material of claim 1 wherein the fastener with the sealing material thereon retains its sealing characteristics following multiple installations and removals.

### Claim 16 (depends on 15)

The fastener sealing material of claim 15 wherein the fastener with the sealing material thereon retains its sealing characteristics following at least three installations and removals.

### Claim 17 (depends on 1)

The fastener sealing material of claim 1 wherein when applied to a fastener, the fastener sealing material wicks on to a portion of a shank of the fastener.

### Claim 18 (depends on 1)

The fastener sealing material of claim 1 wherein when applied to a fastener, the fastener sealing material forms a locking material for the fastener.

### Claim 19

A method of making a fastener with a sealing material thereon, comprising:
applying a liquid applied acrylate material to the fastener; and
curing the liquid applied acrylate material using an ultraviolet or LED light source and without the use of heat.

### Claim 20 (depends on 19)

The method of claim 19 including the step of pretreating the fastener with a plasma treatment.
