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Water-based coating agent composition, water-based lubricating film paint composition comprising same, and member

A technology of composition and coating agent, applied in the direction of lubricating composition, base material, coating, etc., can solve the problem of water-based coating agent stability without any description, solution without any suggestion, mixed solvent without any record and Suggestions and other problems, to achieve the effect of excellent workability, low friction coefficient, and excellent adhesion

Active Publication Date: 2017-12-01
DUPONT TORAY SPECIALTY MATERIALS KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, in Patent Documents 1 to 4, examples of the aforementioned ketone solvents include, for example, acetone, methyl ethyl ketone, methyl isobutyl ketone, 2-pyrrolidone, N-methyl-2-pyrrolidone, N-methyl-3-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, N,N-dimethylformamide, etc., but among these, for the use of nitrogen-containing heterocyclic Mixed solvents of compounds and water have no record or suggestion
Furthermore, in Patent Documents 1 to 4, when acetone or the like forms a mixed solvent with water, there is no ketone solvent and nitrogen-containing heterocyclic compound that usually cause emulsion breakdown and destabilize the water-based coating agent composition. Exemplified differently, there is no description of the technical problem of the stability of the water-based coating agent, and no suggestion for the corresponding solution

Method used

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  • Water-based coating agent composition, water-based lubricating film paint composition comprising same, and member
  • Water-based coating agent composition, water-based lubricating film paint composition comprising same, and member
  • Water-based coating agent composition, water-based lubricating film paint composition comprising same, and member

Examples

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preparation example Construction

[0119] [Preparation method of composition]

[0120] The preparation method of the composition of the present invention is not particularly limited, and it can be obtained by uniformly mixing and dispersing the above-mentioned components (A) to (E) and other water-soluble optional components by using mechanical force, and can also be obtained by using a concentration adjustment agent if necessary. It is prepared by mixing and dispersing water and any other additives. There are no restrictions on its mixing method and mixing order.

[0121] On the other hand, it is preferable to prepare (A) an emulsion of curable resin in the form of an aqueous emulsion by emulsion polymerization using an ionic or nonionic surfactant, etc. One or more nitrogen-containing heterocyclic compounds are added as the component (D) to plasticize or stabilize the curable resin in the form of an aqueous emulsion. In this state, by using mechanical force to uniformly mix and disperse other surfactants,...

Embodiment 1～7 and comparative example 1～8

[0145] Each component was mixed in the ratio shown in Table 1 and Table 2, and the water-based coating agent (water-based coating composition for lubricating coatings) of Examples 1-7 and Comparative Examples 1-8 was obtained.

[0146] In addition, the numerical value shown in Table 1 and Table 2 represents a mass part. Further, the water-based polyurethane resin / water-based polyolefin resin in the table is used as the binder of (A) component of the present invention, and is described in the form of mass parts (100 parts by mass) of the solid content, and the water in the water-based emulsion form is included in (E ) is recorded in the water component.

[0147] [Flow Stability]

[0148] The flow stability of the coating agent was determined on the basis of the following criteria, and is shown in Table 1 (Examples 1 to 7) and Table 2 (Comparative Examples 1 to 8).

[0149] ◎: very stable

[0150] ○: Stable but thickened

[0151] Δ: Viscosification and saponification after 2...

Embodiment 1

[0171] 1,3-Dimethyl-2-imidazolidinone was added as a solvent to a water-based polyurethane resin emulsion (resin solid content: 40%) at a compounding ratio shown in Table 1, and stirred and mixed for dissolution. Then, sodium dodecylbenzenesulfonate as an anionic surfactant was added and dissolved while stirring, and then PTFE powder as a solid lubricant was dispersed. After adding the antifoaming agent, the obtained mixture was mixed and stirred at 600 rpm for 30 minutes to obtain a water-based coating agent composition.

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Abstract

The present invention addresses the problem of providing a water-based coating agent composition (in particular, a water-based lubricating film paint composition that includes a solid lubricant) that suppresses the interaction of a curable resin and a surfactant, that suppresses thickening / disproportionation throughout a water-based coating agent, that has superior total fluidity, coating properties, and storage stability, and that can form a favorable coating film, and the problem of providing a member that is provided with said coating film, and a method for forming said coating film. Said problems can be solved by a water-based coating agent composition that includes (A) a curable resin in the form of a water-based emulsion, (B) a surfactant, (C) solid particles, (D) one or more nitrogen-containing heterocyclic compound, and (E) water. In particular, the (C) component preferably includes a solid lubricant, and for reasons of environmental regulations, it is particularly preferable that the (D) component be 1,3-dimethyl-2-imidazolidinone.

Description

technical field [0001] The present invention relates to a water-based coating agent composition. Furthermore, the present invention relates to the use of the water-based coating agent composition, and relates to a water-based lubricating coating composition, a component having a coating coating or a lubricating coating formed by curing the composition, and the coating / lubricating coating. form method. Background technique [0002] A water-based paint or water-based coating agent obtained by dispersing or emulsifying a curable resin in water (hereinafter referred to as "water-based coating agent") contains an organic solvent as a film-forming aid in order to form a film even at low temperatures. In such water-based coating agent compositions, curable resins are often dispersed or emulsified in the form of emulsions, and pigments or solid lubricants in the form of powders, pastes, or dispersions are mixed, and sometimes added to stabilize the dispersion of the powder and Sur...

Claims

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Application Information

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IPC IPC(8): C09D201/00C10M103/02C10M103/06C10M107/04C10M107/38C10M107/44C10M133/40C10M133/44C10M133/48C10M143/00C10M145/14C10M145/20C10M149/18C10M149/20C10M155/02C10N10/04C10N10/06C10N20/00C10N20/02C09D5/02C09D7/12C10M173/02C10M103/00
CPCC10M133/40C10M133/44C10M133/48C10M143/00C10M145/14C10M145/20C10M149/18C10M149/20C10M155/02C10M173/02C09D201/00C10M103/00C10M103/02C10M103/06C10M107/04C10M107/38C10M107/44C09D7/40C09D5/02C09D7/63C10M133/38C09D5/024C09D7/65C09D7/61C08K5/3445C08K5/3415C08K5/353C08L23/06C08L77/00C08K3/30C08K3/04C08K3/22C08K3/38C08K2003/3009C08K2003/2227C08K2003/385C08K2003/2296
Inventor 佐佐木贵彦山口哲司
Owner DUPONT TORAY SPECIALTY MATERIALS KK
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