# US 10,480,287 B2 · Epoxy-based subsea insulation material

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- Number: US 10,480,287 B2
- Document ID: US10480287B2
- Status: Granted
- Kind: B2
- Application number: 14/962,691
- Filed: 2015-12-08
- Published: 2016-06-16
- Granted: 2019-11-19
- Earliest claimed: 2014-12-12
- Assignees: Carboline Company
- Applicants: Carboline Company
- Inventors: Benjamin Lee Thornton; John Orlin Kloepper; Steve Vincent Liebhart
- Web page: https://patentgrep.com/patent/US10480287B2

## CPC

- E21B 36/003: {Insulating arrangements}
- B29B 7/002: {Methods (chemical aspects C08J3/00)}
- B29B 13/02: by heating (B29B13/06, B29B13/08 take precedence)
- B29C 45/0001: {characterised by the choice of material}
- B29C 45/14639: {for obtaining an insulating effect, e.g. for electrical components}
- C08J 3/24: Crosslinking, e.g. vulcanising, of macromolecules (mechanical aspects B29C35/00; crosslinking agents C08K)
- C08K 5/3447: condensed with carbocyclic rings
- C08K 7/20: Glass
- C08L 63/00: Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- F16L 59/028: {Compositions for or methods of fixing a thermally insulating material}
- B29K 2063/00: Use of {EP, i.e.} epoxy resins {or derivatives thereof}, as moulding material
- B29K 2105/20: Inserts
- B29K 2995/0015: Insulating
- B29L 2023/225: {Insulated}
- C08G 77/26: nitrogen-containing groups
- C08G 77/46: containing polyether sequences
- C08G 2650/50: containing nitrogen, e.g. polyetheramines or Jeffamines(r)
- C08J 2383/10: Block- or graft-copolymers containing polysiloxane sequences
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- 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)
- 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)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

An epoxy-based insulation material and a method of thermally insulating a subsea production apparatus are disclosed. The epoxy-based insulation material has an amine-cured epoxy elastomer matrix and a plurality of non-metallic beads suspended in the matrix. The epoxy-based insulation material is located on the subsea production apparatus to thermally insulate a hydrocarbon fluid from sea water.

## Claims

### Claim 1

An epoxy-based insulation material for insulating a subsea production apparatus comprising:
an amine-cured epoxy elastomer matrix, including between 1% and 10% aminopolysiloxane;
and a plurality of non-metallic beads suspended in the matrix; wherein the insulation material is located on the subsea production apparatus to thermally insulate a hydrocarbon fluid from sea water.

### Claim 2 (depends on 1)

The epoxy-based insulation material according to claim 1, wherein the amine-cured epoxy elastomer matrix is formed by a reaction of a two-component epoxy having component A and component B;
wherein component A comprises an epoxy resin diluent, an epoxy resin, a silane, a dispersive additive, a polyether siloxane, and an acrylic polymer,
wherein component B comprises the aminopolysiloxane, at least one curing agent, an alkoxysilane, polyoxypropylenediamine and at least one thickening agent.

### Claim 3 (depends on 2)

The epoxy-based insulation material of claim 2, wherein the curing agent is a polyamine.

### Claim 4 (depends on 1)

The epoxy-based insulation material of claim 1, wherein the amine-cured epoxy elastomer matrix further comprises modified urea.

### Claim 5 (depends on 1)

The epoxy-based insulation material of claim 1, wherein the amine-cured epoxy elastomer matrix further comprises 2,4,6-tri(dimethylaminomethyl) phenol.

### Claim 6 (depends on 1)

The epoxy-based insulation material of claim 1, wherein the amine-cured epoxy elastomer matrix further comprises cycloaliphatic amine.

### Claim 7 (depends on 1)

The epoxy-based insulation material of claim 1, wherein the amine-cured epoxy elastomer matrix further comprises benzimidazolone pigment.

### Claim 8 (depends on 1)

The epoxy-based insulation material according to claim 1, having an elongation of at least 15%.

### Claim 9 (depends on 1)

The epoxy-based insulation material according to claim 1, having a Shore D hardness of between 20 to 85 before being exposed to water.

### Claim 10 (depends on 1)

The epoxy-based insulation material according to claim 1, having a Shore D hardness of between 20 to 85 after being exposed to water at 250° F. for 5 weeks.

### Claim 11 (depends on 1)

The epoxy-based insulation material according to claim 1, having a tensile strength of between 500 to 5,000 psi.

### Claim 12 (depends on 1)

The epoxy-based insulation material according to claim 1, having a thermal conductivity of between 0.0835 to 0.334 W/m° K at between 86° F. and 140° F.