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Sealant for screwing members

A sealant and component technology, applied in the direction of connecting components, threaded fasteners, engine sealing, etc., can solve problems such as poor work efficiency

Active Publication Date: 2020-06-26
THREE BOND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, only one device can be covered by switching the switch ON-OFF once, and the installation work of the screw member must be continuously performed, so the work efficiency is poor, and there is a problem in terms of productivity.

Method used

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  • Sealant for screwing members
  • Sealant for screwing members
  • Sealant for screwing members

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5、 comparative example 1～10

[0091] [(a) ingredient]

[0092]・ACRONAL (registered trademark) YS-800ap (self-crosslinking type emulsion containing styrene-(meth)acrylate copolymer, solid content 47% by weight, manufactured by BASF Japan Co., Ltd.)

[0093] [(a') ingredient]

[0094] ・Movinyl (registered trademark) 6969, (non-self-crosslinking type emulsion containing (meth)acrylate copolymer or (meth)acrylate homopolymer, solid content 50% by weight, manufactured by Nippon Synthetic Chemical Co., Ltd.)

[0095] [(b) ingredient]

[0096] ・Tiara KY-400S (Nanofibrillated aramid fiber, concentration: 20% (80% of 100% is moisture), fiber diameter: 200-300nm, length-length weighted average fiber length: 500-600μm, Aspect ratio: 1500~3000, manufactured by Toray DuPont)

[0097] [(b') ingredient]

[0098] ・KEVLAR K29 (aramid fiber that has not been nanofiberized, concentration: 93% (7% of 100% is water), fiber diameter: 12μm fiber length: 3.0mm, aspect ratio: 250, ToduPont Co., Ltd. system)

[0099] ・Cellulo...

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Abstract

The object of the invention is to prevent a coating film of a screwing member coated with a sealant for screwing members from being biased during a process for drying volatile components. The presentinvention provides a sealant for screwing members, the sealant containing (a) a self-crosslinking aqueous emulsion, (b) a nanofiberized aramid fiber material, and (c) a film-forming aid consisting ofa mixture, wherein the mixture contains a compound represented by formula 1, CH3O-(CH2CH2O)n-H (in the formula, n is at least 4), and the equilibrium reflux boiling point of the overall mixture is 280degrees centigrade or higher.

Description

technical field [0001] The present invention relates to a sealant for screwed components, a screwed component and a manufacturing method thereof. Background technique [0002] Conventionally, a sealing tape has been used as a sealant for close contact of threaded parts such as pipe joints. The purpose of using the sealing tape for the screw joint is to prevent leakage of liquid, gas, etc. by filling gaps generated in connection parts of pipes and the like. The sealing tape is mainly made of fluororesin, and it is easy to adhere to the screw part due to its flexibility. When screwed into the device, the fluororesin is also softly deformed and can fill the gap with the device, so it is used as a sealant. As a method of covering the threaded member with the seal tape, the seal tape is wound by using a winding device or by manual work. In such a seal tape winding device, for example, the device of Patent Document 1, a screw member and a seal tape are respectively installed on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/10F16J15/10
CPCF16J15/102F16B33/004C08K7/02C08L77/06C08L2203/12C09D5/024C09D125/14C09D133/08C09D133/10
Inventor 鹫野江里佳
Owner THREE BOND CO LTD