Method for suppressing corrosion under heat-insulating material, and paste for suppressing corrosion under heat-insulating material

Patent metadata

Field	Value
Publication number	US-12110414-B2
Application number	US-201817047391-A
Country	US
Kind code	B2
Filing date	Apr 16, 2018
Priority date	Apr 16, 2018
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

A method for suppressing corrosion under insulation includes a step of applying a paste containing aerogel particles and a liquid medium to a target surface to form a coating film. A paste for suppressing corrosion under insulation contains aerogel particles and a liquid medium.

First claim

The invention claimed is:

1. A method for suppressing the corrosion of a pipe under insulation, comprising a step of applying a paste comprising aerogel particles, a liquid medium, a binder resin, and a fibrous substance to a surface of the pipe to form a corrosion-resistant coating film thereon,
wherein the binder resin comprises a first binder resin and a second binder resin having a lower solubility to the liquid medium than the first binder resin, and the first binder resin is a cellulose-based resin or an acrylic acid-based resin, and
wherein the content of the fibrous substance is 5 parts by mass or more and 25 parts by mass or less, with respect to 100 parts by mass of the aerogel particles.

2. The method according to claim 1 , wherein the content of the aerogel particles is 5% by mass or more based on the total amount of the paste.

3. The method according to claim 1 , wherein the liquid medium is a water-based solvent containing water.

4. The method according to claim 1 , wherein the content of the second binder resin is greater than the content of the first binder resin.

5. The method according to claim 1 , wherein the aerogel particles have hydrophobicity.

6. The method according to claim 1 , wherein the fiber diameter of the fibrous substance is 0.01 to 100 μm.

7. The method according to claim 1 , wherein the second binder resin is a thermoplastic resin.

8. The method according to claim 7 , wherein the second binder resin is an acrylic resin.

9. The method according to claim 1 , wherein the second binder resin is a thermosetting resin.

10. The method according to claim 9 , wherein the second binder resin is a silicone resin.

11. The method according to claim 1 , wherein the content of the fibrous substance is 7 parts by mass or more and 20 parts by mass or less, with respect to 100 parts by mass of the aerogel particles.

12. The method according to claim 1 , wherein the content of the fibrous substance is 9 parts by mass or more and 15 parts by mass or less, with respect to 100 parts by mass of the aerogel particles.

Assignees

• Resonac Corp

Inventors

• Izumi Hiroyuki
• Makino Tatsuya
• Kotake Tomohiko
• Takayasu Satoshi
• Sato Naoyoshi

Classifications

• C09D183/04

  Polysiloxanes · CPC title

• C09D133/04

  Homopolymers or copolymers of esters {(C09D143/04 takes precedence)} · CPC title

• C09D7/62

  modified by treatment with other compounds · CPC title

• C09D7/70

  characterised by shape, e.g. fibres, flakes or microspheres · CPC title

• C09D7/20

  Diluents or solvents · CPC title