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Fluorine-containing polymer particles

A polymer, particle technology, applied in the direction of coating, etc., to achieve the effect of excellent adhesion

Active Publication Date: 2021-05-25
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, fluoropolymer particles that have adhesion to other objects while suppressing thermal fusion between particles, and form a coating film excellent in hydrophobicity, antifouling properties, and chemical resistance have not yet been established.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123]

[0124] Add 300 parts of ion-exchanged water and 0.2 parts of sodium lauryl sulfate into the reactor, and start stirring. Under a nitrogen atmosphere, 0.5 parts of ammonium persulfate was added thereto at 80°C, and 35 parts of 2,2,2-trifluoroethyl methacrylate (3FMA), cyclohexyl methacrylate, and A monomer mixture of 63 parts of ester (CHMA), 2 parts of hydroxyethyl methacrylate (HEMA), 2 parts of sodium lauryl sulfate, and 50 parts of ion-exchanged water, after the dropwise addition, was polymerized for 3 hours to obtain Phase 1 polymer particles.

[0125]

[0126] 300 parts of ion-exchanged water, 10 parts of polymer particles (in terms of solid content) obtained in the first-stage polymerization, and 0.2 parts of sodium lauryl sulfate were charged into the reactor, and stirring was started. Under a nitrogen atmosphere, 0.5 parts of ammonium persulfate was added thereto at 80°C, and 35 parts of 2,2,2-trifluoroethyl methacrylate (3FMA), cyclohexyl methacrylate, a...

Embodiment 2

[0140] Add 300 parts of ion-exchanged water and 0.2 parts of sodium lauryl sulfate into the reactor, and start stirring. Under a nitrogen atmosphere, 0.5 part of ammonium persulfate was added thereto at 80°C, and 50 parts of 2,2,2-trifluoroethyl methacrylate (3FMA), cyclohexyl methacrylate, and Monomer mixture of 24 parts of ester (CHMA), 24 parts of cyclohexyl acrylate (CHA), 2 parts of 4-hydroxybutyl acrylate (4HBA), 2 parts of sodium lauryl sulfate, and 50 parts of ion-exchanged water. , for 3 hours to carry out the polymerization treatment. The pH was adjusted to about 8 with aqueous ammonia. The obtained polymer particles are shown in Table 1.

Embodiment 3

[0142] Except having changed the composition ratio of a monomer mixture into the composition shown in Table 1, it carried out similarly to Example 1, and obtained the polymer particle. The obtained polymer particles are shown in Table 1.

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Abstract

Provided are fluorine-containing polymer particles that can form a coating film having excellent water repellency, antifouling properties, chemical resistance, adhesion properties, and particle non-fusibility, by mixing a small amount of the fluorine-containing polymer particles with other particles. The fluorine-containing polymer particles are formed of a copolymer containing 30 mass% or more of a structural unit (X) derived from a fluorine-containing (meth)acrylic acid ester monomer (A), and 30 mass% or more of a structural unit (Y) derived from a (meth)acrylic acid ester monomer (B), and are characterized in that the structural unit derived from the fluorine-containing (meth)acrylic acid ester monomer (A) is represented by general formula (1), and the structural unit derived from the (meth)acrylic acid ester monomer (B) is represented by general formula (2). (In formulas (1) and (2), R1 represents hydrogen or a methyl group, R2 represents a fluorine-containing hydrocarbon group having 1-10 carbon atoms, R3 represents a group selected from the group consisting of a benzyl group and cyclic hydrocarbon groups having 5-10 carbon atoms, and a and b represent the degree of polymerization.).

Description

technical field [0001] The present invention relates to fluorine-containing polymer particles, and relates to fluorine-containing polymer particles capable of forming a coating film excellent in hydrophobicity, antifouling property, chemical resistance, adhesion, and particle non-welding properties. Background technique [0002] Fluoropolymers have advantages of being excellent in properties such as heat resistance, oxidation resistance, light resistance, and chemical resistance, and various fluoropolymers have been proposed conventionally. Fluoropolymers are used, for example, as hydrophobic and oil-repellent agents and antifouling agents by utilizing the characteristics of low free energy, that is, less adhesion to other objects (see, for example, Patent Documents 1 to 3). However, if the fluorine-containing polymer is excessively added, the chemical resistance will be lowered and the cost will be increased, so reducing the production cost becomes a problem. [0003] In a...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/22C08F220/26C08L33/16C09D133/16
CPCC08F220/18C08F220/26C09D133/16C08L33/16C08F220/22
Inventor 小野浩一郎小山内良隆今津直树甲斐信康
Owner TORAY IND INC
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