JPH1112563A - Antistatic agent having reactivity and durability and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an antistatic agent having reactivity, a long life and durability, widely usable in industries for producing resins, plastics, coating materials, electronic information products, etc., by making the antistatic agent have a specific structure. SOLUTION: This antistatic agent has a structure of formula I [R2 is an alkylene oxide of formula II (R0 is a 2-3C hydrocarbon; (n) is about 10-45); R1 and R3 are each a hydrocarbon-containing chain]. Preferably the molecular weight of group R2 is about 550-2020 g/mol. Preferably the molecular weights of the groups R1 and R3 are 44-2000 g/mol. The antistatic agent of formula I is obtained by reacting an amino group-containing compound of the formula; H2 N-R7 or the formula; H2 N-R8 -NH2 (R7 and R8 each contains an alkylene oxide group) having about 550-2020 g/mol molecular weight with an epoxy group-containing compound of formula III [R9 is an (aromatic) hydrocarbon chain having 44-2000 g/mol molecular weight] in the equivalent ratio of 1/2 to 2 at about 30-180 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to an antistatic agent and a method for producing the same, and more particularly to a reactive and persistent antistatic agent and a method for producing the same. In the present invention, a compound having an amino (NH ₂ ) group and a compound having an epoxy group are reacted to form a reactive and persistent antistatic agent.

[0002]

BACKGROUND OF THE INVENTION Conventional antistatic agents are one type of additive, usually low molecular weight quaternary ammonium salts or conductive carbon black additives (improving antistatic properties).
It is. For example, US Patent No. 5,128,473 and Japanese Patent
No. 349,053, when this type of material is used, the low molecular weight quaternary ammonium salt easily migrates and expires. The polymer surface becomes moist after a period of time, thus degrading the quality of the polymer. If too much additive is used, the properties of the polymer will be affected; if carbon black additive is used, in addition to decarboxylation, the color will be limited to a certain range and there will be compatibility problems.

In another method for preparing an antistatic agent, an organosilicon compound is used as a conductive polymer, mixed with a polymer or coated on a polymer surface. This type of polymer is not easily compatible with other polymers, and is therefore most often formed by coating (eg, the compounds disclosed in US Pat. No. 4,584,342). Products of this kind are usually additive-type, have a relatively short life and relatively poor wiping and water resistance when compared to reactive antistatic agents.

[0004] In US Patent Nos. 5,356,959 and 4,931,506 and Japan Nos. 5,262,460 and 5,051,475,
Polyethylene oxide (PEO) has been added into the polymer. Polyethylene oxide has a hydroxy (OH) group, which is a reactive functional group, but due to its long reaction time, it must be reacted at high temperatures, which degrades the polymer.

[0005]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an antistatic agent which improves the properties of ordinary materials and a process for its preparation.

[0006]

According to the object of the present invention,
Certain antistatic agents have been developed. These molecular structures are
It is represented by the following formula (I) and formula (II):

Embedded image

Embedded image

Compound (I) is an antistatic agent having an epoxy group, and compound (II) is an antistatic agent having an amino group. Since both the epoxy group and the amino group are reactive functional groups, compound (I) and compound (II) can react in a polymer. Therefore, the antistatic agent of the present invention has a reactive property and a long life.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In compounds (I) and (II),
The molecular weight of the R ₂ , R ₄ and R ₆ groups which are alkylene oxide chains is about 550 g / mol to 2020 g / mol, and is an aromatic hydrocarbon chain or a hydrocarbon chain, or an aromatic hydrocarbon having a halogen group. The molecular weight of the R ₁ , R ₃ and R ₅ groups, which are chains or hydrocarbon chains, is about 44 g /
Mol to 20,000 g / mol. The structure of the alkylene group is represented by the following formula:

Embedded image Wherein the R ₀ group is a hydrocarbon group having 2 or 3 carbon atoms and n is about 10-45.

According to the present invention, a method for producing an antistatic agent comprises the following steps. That is, a compound having an amino group and a compound having an epoxy group described below are put into a reaction vessel at an equivalent ratio of 1/2 to 2 and stirred while gradually increasing the temperature within a range of about 30 to 180 ° C. Is reacted with a compound having an epoxy group to form an antistatic agent having a reactive group. Catalytic substances such as oxybenzene, acetic acid, alcohol, nitrobenzene, dioxane, methylbenzene and di-i-propyl ether can be added to the reaction to promote the reaction. In the molecular structure of the antistatic agent of the present invention, the epoxy group and the amino group are reactive functional groups, and the alkylene oxide chain provides antistatic properties.

The structure of a compound having an amino group for producing an antistatic agent has the structure of H ₂ N—R ₇ or H ₂ N—R ₈ —NH ₂
[Wherein the R ₇ and R ₈ groups include an alkylene oxide group]. The molecular weight of the compound is about 550 g / mol
2020 g / mol, and the structure of the alkylene group is represented by the following formula:

Embedded image Wherein the R ₀ group is a hydrocarbon group having 2 or 3 carbon atoms and n is about 10-45.

The structure of a compound having an epoxy group is represented by the following formula:

Embedded image Wherein the R ₉ group is an aromatic or hydrocarbon chain or a halogen-containing aromatic or hydrocarbon chain having a molecular weight of about 44 g / mol to 2000 g / mol.

One of the features of the present invention is that the reaction of a compound having an amino group and an epoxy group is extremely active, and the production method is extremely easy. Therefore, the present invention can be widely used in industries such as production of resins, plastics, special chemicals, paints and electronic information products. The antistatic agent of the present invention is a product having a high added value.

[0013] Another feature of the present invention is that the antistatic agent is of a reactive type. That is, the disadvantages of low molecular weight quaternary ammonium salts are eliminated. In addition, decarbonation when using carbon black additives, limitation of color tone and compatibility with polymers are all improved.

Another feature of the present invention is that, due to the reactive functional groups of the antistatic agent, the antistatic agent has a long life and durability, and has improved surface properties.

[0015]

EXAMPLES The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. Example 1 A flask equipped with a stirrer, reflux condenser, inlet for adding raw materials, and another inlet for nitrogen was used. Compounds having an epoxy group [Chang Chun C
o.) manufactured by BE-188] (about 152 g) and a compound having an amino group [M-M manufactured by Huntsman Co.
1000] (about 200 g) to the flask and add about 30-7
After a reaction time of 1 hour at 0 ° C., an antistatic agent having an epoxy group was obtained. The average molecular weight of BE-188 is 380 g
/ Mol, and the equivalent weight of the epoxy group is about 185 to 195. M-1000 has an average molecular weight of about 1000 g / mol and an amino group equivalent of about 500.

Example 2 A flask equipped with a stirrer, a reflux condenser, an inlet for adding raw materials, and another inlet for nitrogen was used. Compound having epoxy group [BE-18 manufactured by Chang Chun Co., Ltd.]
8] (about 76 g) and a compound having an amino group [M-2070 manufactured by Huntsman] (about 200 g) are added to the flask, and after a reaction time of about 50 to 80 ° C. for 1 hour, an antistatic compound having an epoxy group is added. Agent was obtained. M-2070 has an average molecular weight of about 2000 g / mol and an amino group equivalent weight of about 1000.

Example 3 A flask equipped with a stirrer, a reflux condenser, an inlet for adding raw materials, and another inlet for nitrogen was used. Compound having an epoxy group [TBBADE (tetra-bromobisphenol A diglycidyl ether)] (about 131 g) and compound having an amino group [M-207 manufactured by Huntsman Co., Ltd.]
0] (about 200 g) was added to the flask, and after a reaction time of about 1 hour at about 30-80 ° C., an antistatic agent having an epoxy group was obtained. TBBADE has an average molecular weight of about 656 g / mol and an equivalent weight of epoxy group of about 328.

Example 4 A flask equipped with a stirrer, a reflux condenser, an inlet for adding raw materials, and another inlet for nitrogen was used. A compound having an epoxy group [Epikote 1007 manufactured by Shell Co.] (about 190 g) and a compound having an amino group [M-1000 manufactured by Huntsman] (about 25 g)
g) was added to the flask to obtain an antistatic agent having an epoxy group after a reaction time of 1 hour at about 60-150 ° C.
Epicoat 1007 has an average molecular weight of about 2900 g / mol and an epoxy group equivalent weight of about 1750-2100.

Example 5 A flask equipped with a stirrer, a reflux condenser, an inlet for adding raw materials, and another inlet for nitrogen was used. Compound having epoxy group [Epicoat 1007 manufactured by Shell Co.]
(Approximately 193 g) and a compound having an amino group [M-2070 manufactured by Huntsman] (approximately 50 g) were added to the flask.
After a reaction time of 1 hour at 0-150 ° C., an antistatic agent having an epoxy group was obtained.

Example 6 A flask equipped with a stirrer, a reflux condenser, an inlet for adding raw materials, and another inlet for nitrogen was used. Compound having epoxy group [BDDE (butanediol diglycidyl ether)] (about 80 g) and compound having amino group
[M-1000 manufactured by Huntsman] (about 200 g) was added to the flask, and after a reaction time of about 1 hour at about 50 to 100 ° C., an antistatic agent having an epoxy group was obtained. The average molecular weight of BDDE is about 202 g / mol and the equivalent of epoxy groups is about 100.

Example 7 A flask equipped with a stirrer, a reflux condenser, an inlet for adding raw materials, and another inlet for nitrogen was used. Compound having epoxy group [DGE (diglycidyl ether)] (about 2
6 g) and a compound having an amino group [M-2070 manufactured by Huntsman] (about 200 g) were added to the flask, and about 30 g of the compound were added.
After a reaction time of 30 minutes at 70 ° C., an antistatic agent having an epoxy group was obtained. The average molecular weight of DGE is about 130
g / mol and the equivalent weight of epoxy group is about 65.

Example 8 A flask equipped with a stirrer, a reflux condenser, an inlet for adding raw materials, and another inlet for nitrogen was used. Compound having epoxy group [BE-18 manufactured by Chang Chun Co., Ltd.]
8] (about 19 g) and a compound having an amino group [M-2070 manufactured by Huntsman] (about 200 g) are added to the flask, and after a reaction time of about 30 to 70 ° C. for 1 hour, an antistatic compound having an epoxy group is added. Agent was obtained. ED-2001 has an average molecular weight of about 2002 g / mol and an equivalent weight of amino group of about 1000.

Example 9 Table 1 shows a comparison of antistatic properties of reaction products obtained by changing the ratio of the antistatic agent obtained in Example 4 of the present invention to various crosslinking agents. Referring to Table 1, the experiment described in Example 4 was carried out three times, and MEA (monoethanolamine) and ED2 were added to the obtained antistatic agent having an epoxy group.
Crosslinking agents such as 001 and EDR-148 (each manufactured by Huntsman) were added. Then 50-80
An antistatic epoxy resin was obtained by a crosslinking reaction at about 1 hour for about 1 hour. Furthermore, the surface resistance data shown in Table 1 shows that the antistatic properties of the antistatic agent are extremely effective.

[Table 1] Mixing ratio (% by weight) Sample 1 Sample 2 Sample 3 Antistatic agent obtained in Example 4 88 54 72.9 MEA 12000 ED2001 0 42.7 27.1 EDR148 0 3.30 Surface resistance of product (Ω / □) 10 ^10.5 10 ^8.2 10 ^9.5

[0024]

One of the features of the present invention is that the reaction of a compound having an amino group and an epoxy group is extremely active,
The manufacturing method is easy. Therefore, the present invention can be widely used in industries such as production of resins, plastics, special chemicals, paints and electronic information products. The antistatic agent of the present invention is a product having a high added value.

Another feature of the present invention is that the antistatic agent is of a reactive type. That is, the disadvantages of low molecular weight quaternary ammonium salts are eliminated. In addition, decarbonation when using carbon black additives, limitation of color tone and compatibility with polymers are all improved.

Another feature of the present invention is that, due to the reactive functional groups of the antistatic agent, the antistatic agent has a long life and durability, and has improved surface properties.

While the invention has been described in terms of preferred embodiments and examples, it should be understood that the invention is not limited thereto. In contrast, it is intended to cover various modifications as well as similar modifications and methods. Therefore, the claims should be interpreted most broadly to cover all such modifications as well as similar modifications and methods.

Claims (32)

[Claims] 1. A reactive and persistent antistatic agent having the structure represented by the following formula: [Wherein, the R ₂ group is a chain having an alkylene oxide group, and the R ₁ and R ₃ groups are chains having a hydrocarbon group]. 2. The structure of an alkylene oxide group is: The antistatic agent according to claim 1, wherein the R ₀ group is a hydrocarbon group having 2 or 3 carbon atoms, and n is about 10 to 45. 3. The molecular weight of the R ₂ group is about 550 to 2020 g.
The antistatic agent according to claim 1, wherein the ratio is / mol. 4. The molecular weight of the R ₁ group is about 44 to 2000 g /
The antistatic agent according to claim 1, which is in molar. 5. The antistatic agent according to claim 1, wherein the hydrocarbon group is an aromatic hydrocarbon group. 6. The antistatic agent according to claim 1, wherein the hydrocarbon group is an aliphatic hydrocarbon group. 7. The antistatic agent according to claim 1, wherein the hydrocarbon group is an aromatic hydrocarbon group having a halogen group. 8. The antistatic agent according to claim 1, wherein the hydrocarbon group is an aliphatic hydrocarbon group having a halogen group. 9. A reactive and persistent antistatic agent having the structure represented by the following formula: [Wherein, R ₄ and R ₆ are chains having an alkylene oxide group, and R ₅ is a chain having a hydrocarbon group]. 10. The structure of an alkylene oxide group is: The antistatic agent according to claim 9, wherein the R ₀ group is a hydrocarbon group having 2 or 3 carbon atoms, and n is about 10 to 45. 11. The molecular weight of the R ₂ group is about 550 to 2020.
The antistatic agent according to claim 9, wherein the amount is g / mol. 12. The R ₁ group has a molecular weight of about 44 to 2000 g.
%. / Mole. 13. The antistatic agent according to claim 9, wherein the hydrocarbon group is an aromatic hydrocarbon group. 14. The antistatic agent according to claim 9, wherein the hydrocarbon group is an aliphatic hydrocarbon group. 15. The antistatic agent according to claim 9, wherein the hydrocarbon group is an aromatic hydrocarbon group having a halogen group. 16. The antistatic agent according to claim 9, wherein the hydrocarbon group is an aliphatic hydrocarbon group having a halogen group. 17. A method for producing a reactive and persistent antistatic agent, comprising reacting a first compound having an amino group and a second compound having an epoxy group at a certain ratio and a certain temperature. And obtaining a persistent antistatic agent. 18. The method according to claim 17, wherein the structure of the first compound having an amino group is represented by H ₂ NR _{7 wherein} R ₇ is a chain having an alkylene oxide group. 19. The alkylene oxide group having a molecular weight of about 5
The method according to claim 18, wherein the amount is 50 to 2020 g / mol. 20. The structure of the alkylene oxide group is: 19. The method according to claim 18, wherein the R < ₀ > group is a hydrocarbon group having 2 or 3 carbon atoms and n is about 10-45. 21. The structure according to claim 17, wherein the structure of the first compound having an amino group is represented by H ₂ N—R ₈ —NH ₂ , wherein R ₈ is a chain having an alkylene oxide group. the method of. 22. The alkylene oxide group having a molecular weight of about 5
22. The method according to claim 21, wherein the amount is 50 to 2020 g / mol. 23. The structure of the alkylene oxide group is: 22. The method of claim 21 wherein the R < ₀ > group is a hydrocarbon group having 2 or 3 carbon atoms and n is about 10-45. 24. The structure of the second compound having an epoxy group has the structure: Wherein, R ₉ groups are chain having a hydrocarbon group] The method of claim 17 represented by. 25. The molecular weight of the R ₁ group is about 44 to 2000 g.
25. The method of claim 24 wherein 26. The method according to claim 24, wherein the hydrocarbon group is an aromatic hydrocarbon group. 27. The method according to claim 24, wherein the hydrocarbon group is an aliphatic hydrocarbon group. 28. The method according to claim 24, wherein the hydrocarbon group is an aromatic hydrocarbon group having a halogen group. 29. The method according to claim 24, wherein the hydrocarbon group is an aliphatic hydrocarbon group having a halogen group. 30. The method according to claim 17, wherein the equivalent ratio of the first compound having an amino group to the second compound having an epoxy group is about 1/2 to 2. 31. The method according to claim 17, wherein the temperature is between about 30 and 200 ° C. 32. The method according to claim 31, wherein the temperature is between about 60 and 120 ° C.