JPS5948827A - Magnetic recording medium - Google Patents

Abstract

PURPOSE:To obtain a magnetic recording medium which has wear resistance, high S/N and high output for reproduction and is particularly improved in the corrosion resistance of a metallic magnetic material by providing a magnetic layer contg. a compd. having a specific residual tertiary amine group and residual phosphate group together with ferromagnetic powder on a non-magnetic substrate. CONSTITUTION:The compd. expressed by the formulas I , II [X<1> is C1-30(substd.) alkyl, (substd.) aryl or a (substd.) heterocyclic group, where the alkyl, aryl, or heterocyclic group may have the residual phosphoric acid group expressed by the formula III, R<1> is C1-5 alkyl, (substd.) aryl, or H, A and A<1> are H, alkali metals, alkaline earth metals, -(CH2CH2O)l-H, l is 1-10, or ammonium components, Z is the same as X<1> or the group expressed by the formula IV, Q is N or C and is an atomic group forming a satd. 5-6-membered ring together with N, R<2> is C1-5 alkyl, n is 0-4, X<11> is C1-20 acyl or the same as X<1>] is incorporated into a magnetic layer by adsorbing the same on magnetic powder and dispersing the powder in a binder. The magnetic recording medium which is improved in the dispersibility and wear resistance of the magnetic powder, more particularly in the corrosion resistance of the metallic magnetic powder is thus obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-density recording medium such as a 69-shift tape or a magnetic sheet. It depends on the medium.

Conventionally, in magnetic recording media such as audio tapes and video tapes, ferromagnetic powders such as Fe3O4, Fe-co-N1, etc. have been used to synthesize vinyl chloride-vinyl acetate copolymers, vinyl chloride-vinylidene chloride copolymers, etc. , polybutyl acrylate, butyl acrylate-acrylonitrile copolymer, heptalulose thread resin, epoxy resin, polyurethane Mt I
Molecule) 1 in a binder such as IW, kneaded to make a magnetic paint, polyethylene terephthalate, cellulose triacetate,
It was coated on the surface of a film-like nonmagnetic support such as polycarbonate, polypropylene, or polyvinyl chloride. When these binders are used alone or in combination, the ferromagnetic powder tends to have poor tittability in the binder, and therefore, in conventional magnetic recording media, it is difficult to obtain the desired magnetic properties. In order to obtain the characteristics or electrical characteristics, the characteristics that a magnetic recording medium should have, such as wear resistance and storage stability, have not been sufficiently satisfied.

In particular, in video tapes that require short wavelength recording, poor dispersion of ferromagnetic powder in the magnetic layer leads to deterioration of S/M# and a decrease in sensitivity. Because they sometimes come into violent sliding contact with the magnetic head, the magnetic coating is worn out by repeated use, and the ferromagnetic powder contained in the coating falls off, giving undesirable results such as clogging of the magnetic head.

For this reason, various additives are used to control the particle size distribution of the strong Bl powder, improve the dispersibility of the ferromagnetic powder in the binder, and improve the wear resistance. For example, Special Publication No. 41-18064, No. 43-186,
Column 43-669, No. 47-15624, JP-A-49
-53402, 49-58804, 49-F1
No. 4405, No. 51-40904, No. 5 $', -'7
As described in each publication of November 2008, magnetic paint containing ferromagnetic powder and binder contains high-grade 1] [sulfuric acid,
Containing fatty acid-protecting amide, fatty n-quester, higher alcohol, metal soap, sulfuric ester of higher alcohol, polyethylene oxide, lecithin, etc., apply this core coating R1 on the surface of a non-magnetic support, Magnetic RL!
The production of record fi'A bodies is being carried out.

However, even if these additives are added, they do not necessarily have desirable properties in terms of improved carbon feel or 1111 properties, abrasion resistance, long-term storage stability, etc. It was difficult to get FI-11.

That is, for example, if these additives are used in large amounts, the unfavorable result is that the mechanical strength of the hexaphilic layer is reduced by one stroke. In addition, after the formation of the M layer, a so-called "blooming" phenomenon in which the additive gradually oozes out onto the surface of the magnetic layer occurs, which may be due to changes over time.
This gives unfavorable results in terms of stability and stability, such as adhesion. Further, the strength of the powder was not satisfactory, and the magnetic properties or electrical properties of the magnetic layer were not satisfactory. For example, the addition of lecithin 2 (Jf) in a magnetic paint (11!) may inhibit the increase in viscosity of the paint due to its interaction with active amino residues such as binding agents and other binding agents. In some cases, it was difficult to uniformly coat the non-magnetic support on the non-magnetic support.

JP-A No. 57-33434 discloses that 1δ is added to the magnetic paint in Simplification 1 (polycarbonate is added to the magnetic paint for the purpose of slowing down the sharpening reaction of the 1'l paint and improving the above-mentioned drawbacks). Is it recorded r+tQ?
Since the secondary or tertiary amine compound has reactivity with the curing component, it is inevitable that the magnetic paint will change over time during storage, and it will not be possible to apply it uniformly on a non-magnetic support. If the chair is made of an alloy with such disadvantages, it may not be possible to prevent the occurrence of rust.

A first object of the present invention is to provide a 1J air recording medium with good wear resistance.

A second object of the present invention is to provide a magnetic recording medium with a good S/N ratio.

The third object of the present invention is to have high reproduction output? I'm going to give you a copy of my own life.

A fourth object of the present invention is to provide a high quality magnetic recording medium with excellent storage stability.

A fifth object of the present invention is to provide a magnetic recording medium that has excellent storage stability without the occurrence of rust due to the iA magnetic powder, especially when metal powder or its alloy is used as a magnetic material. be.

As a result of extensive research, the present inventors have found that the 4B layer on the non-magnetic support contains a compound represented by the following general formula CI) or (T1). This was achieved using a magnetic recording medium.

(However, in general formula CI) or (11), xl is a saturated or unsaturated alkyl group having 1 to 3 carbon atoms (which may be linear or branched, a cycloalkyl group, a substituent or a substituted or unsubstituted chemino group, a halogen atom, or a substituted or unsubstituted aryl group having from 3 to 3 carbon atoms or from 1 to 20 carbon atoms, substituted or unsubstituted. alkyl group: substituted amino J, %; or may have a halogen atom,
R' is an alkyl group having a carbon number of 1 to 5, or an alkyl group having a carbon number of 6 to 15; or an un-11q-substituted aryl group (the substituent is an l-copyme ([: (may have a linear or branched alkyl group having 1 to 5 consonants, a halogen atom or a substituted amino group)] or hydrogen Represents an atom, A and is a hydrogen atom, an alkali, an alkaline earth, + ( ] also OH, O-), H is a hydrogen atom, an atom iso group (
However, 1 CIA' represents an ammonium component forming a pair, A and A' may be the same or different, and 1 2 is the same as the above xl or the above 10HR'-P-OA ( 'l A' represents a nitrogen atom or a carbon atom, h forms a saturated 5 or 6 (2) ring, R2 is a straight or branched chain having 1 to 5 carbon atoms; represents an alkyl group, n represents an integer of 0 to 4, and XI+ represents an acyl group having 1 to 20 carbon atoms, or the same as x1 above. .

1, 1 degree. The halogen atom shown as 7 as a substituent in e atom, acid atom, sulfur atom
``It's okay to stay put.''

Exemplary compounds according to general formula CI) are listed in Table (1).

2.30 Examples of the method for synthesizing the compound represented by the general formula (I) or (II) according to the present invention will be described.

One method is to use an amine represented by
) or aldehyde (II) to represent the same thing as (II).
For example, at the same time as or after formaldehydra is decomposed, a phosphorus compound I (for example, phosphorus trihalide (for example, phosphorus trichloride or phosphorus R) is reacted with Ar
By a buzov type reaction, general formula (I) or ca
t CH) can be obtained.

X'-NH again! When is a dibasic amine, for example, after N-alkylating X'-NH, with an alkyl halide, the compound represented by general formula (I) or (II) can be prepared in the same manner as described above. compound can be obtained.

Synthesis 1 of compounds represented by general formula (I) or (1■)
08770 V (5pan, 41.1, ],
1.3) can also be respected.

Still another method is to heat chloromethylphosphorus and an amine in an aqueous sodium hydroxide solution, and this method was inspired by Metady PoluchKim,
Reaktiv, Prep, (] 970)
, A-i? 2. Reference may also be made to P, 2.06-208.

In addition, it is better to use mild reaction conditions for 4 months - at least 1, N
- There is also a method in which an alkyl carboxylic acid and phosphoric acid are heated in the presence of a dehydrating agent (for example, phosphorus pentoxide or acetic anhydride for fRI) and synthesized by dehydration condensation and decarburization reaction. Reference may also be made to Publication No. 2,132,511.

Furthermore, the method for synthesizing the compound represented by the general formula (I) or (IT) according to the present invention is described in US Publication No. 4,202.8 'i' 1, US Publication No. 2, 5
99. i30 '7' rj1st 3,822,393
Reference may be made to the specifications of West German Special Edition No. 2.021.14 B.

7 of the compound represented by general formula (I) or (IIJ)
Even if it is 1, there are 2 or more amino threads remaining.
The following general formula CU containing at least two or more groups
T), (Iv), (VJ, (Vl), (Vll)
(7') House 17) Chair H face 11. It is particularly desirable to have compounds that

1 0=P-OA 0 to 1 0A'OA' OA (However, in the general formula mark, (■), (VD or (VLI), L is a divalent group having a total number of carbon atoms of 1 to 20. x2 may have a substituent; may have a substituted amine group, a halogen group, or a substituted or unsubstituted aryl group) or a carbon atom number of 3 to 20
Substituted or unsubstituted aryl substitutes having 1 to 17 carbon atoms include saturated or unsaturated substituted or unsubstituted alkyl groups having 1 to 17 carbon atoms; substituted amino groups; or halogen atoms. .) represents 1, the alkyl group as x2 above, and the aryl group 1, both of which are -P-nA (the general formula CI) or OA' (rI), which is the same as σ). It has the same group as the general formula (IID, (IV)), and has the same group as the general formula (IID, (IV)).
[2]] will be explained in more detail.

L is a divalent sequence having a total number of carbon atoms of 1 to 20,
The divalent group includes a straight or branched alkylene group having 1 to 2 carbon atoms; Bulk hydrocarbon residue: A straight or branched alkylene group having a total number of carbon atoms of 1 to 20 and having at least one substituted amino residue in a part thereof, or a branched alkylene group having at least one substituted amino residue in a part thereof. Preferred examples include divalent swollen hydrogen residues having an amino residue and an aromatic divalent group.

Examples of L in the general formula (river), ([VJ, (VD or , or x'-1-L- is represented by the general formula (xI 1 in IIJ
It goes without saying that this is one form of obtaining OHR" A1, and for the case of OHR, reference may be made to the pockmarked exemplified compounds in Tables (I) and (11).

Table UJT) 1, -0H2- 2, -(O12)6- 3,　’　　　　-(OH,ha,- 4.OH.

-aH7aI+cH,- 8, <(H■Js- 9, -OH, OH, NOH, (4H2-0H.

Next, xl- in the general formula (IID, (IV), (W or (0 in 耶=P-OA A1 general formula CI)) can take one form,
Or X2-N'-L- is the general formula (x++ in IH
It goes without saying that this is one possible form, and the table -
(■), all of the 11 compounds listed in Table-(II) can be referred to 6 Table-(IV) l・0I2H2! -2,018H3 Fu3, OH8-5, 06HU-"C61"IJ(02F6)CH-8,
(Igl'll□-9,O,H,-10,02[111-11,C,.H9,-OH 14,0+,H2sN (0HJs-CH.

O=P-OH 0I( 15,08H,, -N-(CI,), -co.

Noon Q=p-ONH4 Day NH4 16, (LB) H21N (CJ) 5- CH, -PC+, Oa 1 'i', (08H-1?) 2 N
-(CH2), -18,0,1:L12-1□2-(
+l+21! H1:! H, - 1 0H, (lH.

〇2p-OH book OH OH, -P-ONH.

book (INH4 20, (OH,), 0HCII, - NH4 26, O, H,, -N- (OH,), -CH (OsH ○: p-Q・NH.

C) NH.

2B, O, H, -N- (+H, 0H (OH
*) CH, -o=p-o・NH4 1NH4 29, OH, -N-OH, OH, (OH,)OH, -0
・NH, (CIAH3?) 0・+JH(0,1(,)s OH! ■ 0=P-OLi Li DH.

35, OH, -N-(CH,)4-CH3 Oh.

o=p-n・NH, (OH, nine 0-N also (OHs)t OH, -N -(011,h- OH-OH.

OP　O・N)! 3 (04Ho) (+-NHg(04H9) Oh.

OH, OH.

0=p-nH CH In addition, in the general formula (I) or (11) according to the present invention, the compound hafi (I), (H), ClID
, (IV, IVL rLIl) It is not limited to what is shown, and may take various forms within its technical scope.

The magnetic recording medium according to the present invention will be explained in more detail.

There are two types of magnetic recording media containing a compound of general formula (I) or (expressed as HJ) in a magnetic layer according to the invention.

No. 01 is a magnetic recording medium characterized in that the compound represented by the general formula (IJ or C1) is contained in a magnetic layer on a non-supporting material in the form of processed ferromagnetic powder.

Here, [J contained in the magnetic layer of the non-magnetic support in the form of ferromagnetic powder treatment means that the ferromagnetic powder is previously treated with a compound represented by the front shell formula (IU or (II)). , means that the magnetic layer contains treated ferromagnetic powder.

An example of a method for producing the treated ferromagnetic powder is a method of dispersing ferromagnetic powder in a solvent.

Examples of the dispersion method include methods using a ball mill, a sand grinder, a high-speed impeller disperser, a high-speed mixer, a homogenizer, and the like.

As a solvent for pre-treating the ferromagnetic powder, water or a hydrophilic alcohol or an alcohol ether or a hydrophilic alcohol having 1 to 8 carbon atoms or 9 [v] can be used as a solvent. Alcohol f such as alcohol
fl (e.g. methanol, ethanol, ethoxyethanol, ethylene glycol, etc.): carbon, atomic sound 3-6
Individual? ketones (e.g. acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclo'\keylinone, etc.): hydrophilic ethers such as tetrahydrofuran or dioxane, 2N-methylpyrrolidone, dimethylforno,
Nitrogen-containing hydrophilic solvents such as amide, dimethylacetamide, and pyridine can be used. Further, water may be added to the parent aqueous solvent in an amount of 50% or less.

Further, a hydrophobic solvent can be used as the solvent, but since n-magnetic TQ powder is inherently highly hydrophilic, a hydrophilic solvent is preferable as the solvent, and alcohols (which may contain water) are particularly preferred. is particularly preferred.

A compound different from the compound represented by general formula CI) or (n) according to the present invention, for example, as disclosed in Published Patent Publication No. 1983
When the above-described dispersion treatment is performed using the fluorine-containing amino acid type amphoteric compound described in No. 7-6Q534, for example, when the ferromagnetic powder is a metal powder or an alloy thereof, the present invention Compared to the case of using compounds, the dispersibility of ferromagnetic powder in the magnetic paint was insufficient, and the properties as a magnetic recording medium were also unfavorable as described in the examples.

This is especially true when the ferromagnetic powder is a metal powder in the fluorine-containing amino acid type amphoteric compound and the compound represented by the general formula CI) or CII) according to the present invention.
This is thought to be due to the difference in adsorption to the ferromagnetic powder. Or the nitrogen atom has WE electron attraction (i9'
J-;z"+!'v'y") "-6 is a tertiary amine with no groups (1 and 2 moieties of phosphoric acid residues, which shows favorable results for ferromagnetic powders. First, this effect is particularly important when the ferromagnetic powder is gold powder or its alloy,
Magnetism using t'J = $ is more effective than the tt medium! (For example, the oxidation prevention effect or the rust prevention effect is due to the excellent dispersibility of the strong IB powder).

When treating ferromagnetic powder in advance with a compound represented by general formula (I) or l related to misexplosion 1111,
2 to 0.05 weight for 100 heavy ends of ferromagnetic powder [poor 2+
(It is preferable to use S to 50 parts by weight, particularly preferably 0.1 to 10 parts by weight. Less than 0.05 parts is not effective enough, and if it exceeds 50 nails! G+!, 1 blooming occurs. This is because the phenomenon is easy to occur and is not desirable.

n represented by the general formula CI) or (■) according to the present invention,
When a compound of the general formula (I, l or (ID7) is used as a solution in the hydrophilic solvent and/or water,
50 to 20 parts by weight of the hydrophilic solvent and/or water to 1 part by weight of the compound 0.05 to 50 parts by weight.
00 heavy corner part 1 preferably C, 00 to 1000 heavy end part can be used. Therefore, for example, when it is desired to use 5 parts of surfactant per 100 parts of elastomagnetic powder, for example, the liquid of the compound represented by the general formula (I) or (ID): 10 parts by weight of rj%. concentration (the above hydrophilic solvent and/or (90 parts by weight of water) and the compound represented by general formula (■) or (II) according to the present invention (hereinafter general formula CI) or (1, I) ) 10 weight A
The glue mixed with lζ should be used for 50 years.

In addition, 5 ml to 3000 ml of a solution prepared by mixing the compound of general formula (I, 1 or (JI) in a hydrophilic solvent and/or water) is used per 100 gr of ferromagnetic powder, preferably 50 ml to 2000 ml. do.

The ferromagnetic powder, the compound of general formula CI) or (II), the hydrophilic stock solvent and/or water can be used in the various proportions mentioned above.

The treated ferromagnetic powder obtained in this way is sufficiently hydrophobic for use in magnetic paint, so when used as a magnetic paint as described later, it is a ferromagnetic powder with excellent dispersibility. Ta.

The dispersibility of the ferromagnetic powder according to the present invention when used in a magnetic paint will be described in Examples.
.

I will explain it in detail, but as an example, if you make a thin film of magnetic paint using an applicator, you can use it as t'lf.
Observation with lfi'2 revealed that the degree of dispersion was 41, and the magnetic material according to the present invention was extremely well dispersed.

Another type of magnetic recording medium according to the present invention containing a compound of formula (I) or (II) in the magnetic layer is a compound of formula (I) or CII) as a binder. The mixture is kneaded and dispersed in a solvent together with a ferromagnetic powder to form a magnetic paint, and coated on a non-magnetic support to form a magnetic layer, thereby producing a magnetic recording medium according to the present invention. In this case, the compound of general formula (I) or (n) according to the present invention is used in a range of 0.5 to 30 parts by weight, preferably 0.5 to 10 parts by weight, per 100 parts by weight of the ferromagnetic powder, and a solvent as described below is used. Or crosstalk and disperse together with solvent and binder. The compound of general formula (D or CTI) is 0 parts by weight per 100 parts by weight of ferromagnetic powder.
．． If it is less than 5 parts by weight, the effect is not sufficient, and if it is less than 30 parts by weight,
Preferably, if it exceeds 10 parts by weight, "blooming" phenomenon tends to occur, which may be undesirable. In addition, when adding a compound of the general formula (IU or CTI), it may be added directly or dissolved in an appropriate solvent (for example, alcohols such as methanol and ethanol, acetone, methyl ethyl ketone, methyl isobutyl ketone, Ketones such as cyclohexanone, ethers such as tetrahydrofuran and dioxane, and other hydrophilic solvents are preferred.

) may be added.

However, the compound of the general formula (IJ or C11) according to the present invention can be used even if the ferromagnetic powder is treated in advance as described above and the treated ferromagnetic powder is contained in the magnetic layer, or for use in magnetic paint. When the solvent or the solvent and the binder are kneaded and dispersed together with the ferromagnetic powder and applied to a non-magnetic support to be incorporated into the magnetic layer, the general formula CI) or (IJ , I may use only one compound, or two or more (71) compounds may be used.

Also, among the above two methods of incorporating the compound of general formula CI) or (U) into the magnetic layer, a case where the ferromagnetic powder is treated in advance and the treated ferromagnetic powder is incorporated into the magnetic layer. is preferable in some cases because it requires a shorter time for dispersion or kneading when creating a magnetic paint, and is particularly desirable when ferromagnetic powder is a metal powder or an alloy thereof.

NIJ, represented by the above general formula (L) or (U)]
More preferred is a seven-core recording medium characterized in that the compound is contained in a magnetic layer on a non-magnetic support in the form of a processed ferromagnetic powder. The above-mentioned "in a treated form" means that the ferromagnetic powder has been treated in advance so that it is contained in the magnetic layer, and it may be adsorbed or contained in the ferromagnetic powder. However, the powder may be contained in the magnetic layer in the form of M f4.

As the ferromagnetic powder according to the present invention, for example, r-Fe
2O, powder, Fe504 powder, Oo-containing - Fe, O, powder,
In addition to CO-containing lFe3O4 powder, OrO@ powder, Fe powder, C
A wide variety of ferromagnetic materials can be used, such as metal powders such as O powder and Fe-Oo-Ni alloys, and alloys thereof.

The magnetic paint according to the present invention includes a ferromagnetic powder (which may be treated in advance with a compound of the general formula (I) or (II) as described above), a binder, and a compound of the general formula (IJ).
or compound (Tl) (if the ferromagnetic powder has been previously treated with a compound of the general formula (D or (rlJ), T), there is no need to add it again, or
It's okay. ) and a coating solvent are mixed and dispersed, and this magnetic paint is coated on a non-magnetic support to form a magnetic layer, thereby producing a magnetic recording medium according to the present invention.

Any of the above-mentioned magnetic paints may contain additives such as a dispersant, a lubricant, an abrasive, and an antistatic agent, if necessary.

Regarding the manufacturing method of magnetic paint, Japanese Patent Publication No. 35-15, No. 3
9-26794Jj3, No. 43-186, No. 47-2
No. 8043, No. 47-28045, No. 47-2804
6, No. 47-28048, No. 47-31445,
No. 48-11162, No. 48-21331, No. 48
-33683 Publication 7, West German Published Patent Publication 2060655
It is described in detail in various publications such as the Specification of No. 308033 and the Specification of the Soviet Union Special δ1'' No. 308033.

Binders that can be used in the magnetic layer of the magnetic recording medium according to the present invention include conventionally known thermoplastic resins, thermosetting resins,
Reactive resin or electron beam irradiation (11, Ill pear-shaped resin,
These compounds are used.

Heat irJ plastic tIP: As a resin, the softening temperature is 1-50
“C or less, average molecular weight is 10,000 to 200,000
0, about 200 to 2,000 tonnage, such as vinyl chloride-vinyl acetate copolymer, vinyl chloride-vinylidene chloride copolymer, vinyl chloride-acrylonitrile copolymer, acrylic ester-acrylonitrile copolymer, acrylic ester-vinylidene chloride) 5.41 copolymer, acrylic ester-styrene copolymer, methacrylic ester-acrylonitrile copolymer, methacrylic ester-vinylidene chloride copolymer, methacrylic ester-styrene Copolymers, urethane elastomers, polyvinyl fluoride, vinylidene chloride-acrylonitrile copolymers, acrylonitrile-butadiene copolymers, polyamide resins, polyvinyl butyral, cellulose derivatives (
cellulose acetate butyrate, cellulose diacetate, cellulose triacetate, cellulose propionate, nitrocellulose, etc.), styrene-butadiene copolymer, polyester resin, chlorovinyl ether-acrylic acid ester copolymer, amino resin, various synthetic rubbers thermoplastic resins, mixtures thereof, and the like are used.

These resins are disclosed in Japanese Patent Publication No. 37-6877, -39-
No. 12528, No. 39-11282, No. 40-534
No. 9, No. 40-20907, No. 41-9463, No. 41-14059, No. 41-16985, No. 42-
No. 6428, No. 42-11621, No. 43-4623
No. 43-45206, No. 44-2889, No. 4
No. 4-17947, No. 44-18232, No. 45-1
No. 4020, No. 45-14500, No. 47-1857
No. 3, No. 47-22063, No. 47-22064,
No. 47-22068, No. 47-22069, No. 47
-22070, U.S. Pat. No. 48-27886, U.S. Pat. No. 3,144,3.52, U.S. Pat. No. 3,419,420, U.S. Pat.
It is described in the specification of No. 88'7.

As a thermosetting resin or a reactive resin, G'i has a molecular weight of 200,000 or less in the state of a coating solution, and after 11'th of coating drying, it has a molecular IH due to reactions such as condensation and addition.
tG becomes the maximum size. In addition, the resin softens and melts until it is thermally decomposed by these powerful forces.
Preferably one that does not. Specifically, for example (phenol resin, epoxy resin, polyurethane hard st +
ts-sensei, urea tree 111i, melamine resin, alkyl resin 11, silicone tree 11h, acrylic reaction resin,
Mixture of IIW and isocyanate prepolymer, mixture of methacrylic acid copolymer and diisocyanate prepolymer, mixture of polyester bool and polyisocyanate, urea formaldehyde resin, low molecular weight polymer mixtures of polyamine resins and stiffeners, etc.

These resins are disclosed in Japanese Patent Publications Nos. 39-8103 and 40-97.
No. 79, No. 41-7192, No. 41-8016, No. 41-142'7'5, No. 42-18179, No. 4
No. 3-12081, No. 44-28023, No. 45-1
No. 4501, No. 4.5-24902, No. 46-131
No. 03, No. 47-2206'7, No. 47-220'7
No. 2, No. 47-22073, No. 47-28045,
No. 47-28048, No. 47-28922, U.S. Patent No. 3,144゜353, No. 3,32Q,
No. 090, No. 3,437,510, No. 3.59
'i', No. 273, same number: 3. 'i' No. 81,210, and No. 3 '781,211.

Examples of electron beam irradiation-curable resins include unsaturated prepolymers,
For example, maleic anhydride type, urethane acrylic type, epoxy acrylic type, polyester acrylic type, polyether acrylic type, polyurethane acrylic type, polyamide acrylic type, etc., or as a polyfunctional monomer, ether acrylic type, urethane acrylic type, epoxy acrylic type , phosphate ester acrylic type, aryl type, hydrocarbon type, etc.

The mixing ratio of these binders alone or in combination is 10 to 10 parts by weight of the binder to 100 parts by weight of the ferromagnetic powder.
The amount used is 400 parts by weight, preferably 30 to 200 parts by weight. If the binder is too large, the recording performance of the magnetic d1-1 recording medium will be lowered, and if it is too small, the strength of the magnetic layer will be poor, resulting in undesirable events such as decreased durability and powder falling off. Ru.

Furthermore, in order to improve the durability of the magnetic recording medium II# according to the present invention, one chronic layer may contain a extraction hardening agent, for example, polyisocyanate.

Examples of the polyisocyanate include a combination of a diisocyanate and a trivalent polyol, a pentavalent form of a diisocyanate, and a decarboxylated compound of 3 moles of a diisocyanate and water.

On the stiff side, an adduct of 3 moles of tolylene diisocyanate and 1 mole of trimethylolpropane, an adduct of 3 moles of metaxylylene diisocyanate and 1 mole of trimethylolpropane, a pentamer of tolylene diisocyanate,
There are pentamers made of 3 moles of tolylene diisocyanate and 2 moles of hexamethylene diisocyanate, and decarboxylated products obtained by reacting 3 moles of hexamethylene diisocyanate with 1 mole of water, and these are easily obtained industrially. Ran.

The magnetic layer has the general formula (I) or C according to the present invention.
In addition to the compound (2), the ferromagnetic powder, the binder, and the curing agent, additives such as a dispersant, a lubricant, an abrasive, and an antistatic agent may be added.

Dispersants that may be used include fats having 8 to 18 carbon atoms such as caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, elaidic acid, linoleic acid, lylunic acid, etc. rlI(R-o
(nR is a saturated or unsaturated alkyl group of 7 to 17 carbon atoms): an alkali metal of the above-mentioned fatty acids (Li, Na).

K, etc.) or alkaline earth metals (Mg, Ca, B
Metallic soaps consisting of a): examples include lecithin.

In addition to this (f9.), high-strength alcohols having 12 or more carbon atoms and alcohols, sulfuric esters and the like can also be used.

Moreover, commercially available general surfactants can also be used.

These dispersants may be used only in Class 18, or two or more types may be used in combination. These dispersants are added in an amount of 1 to 20 parts by weight per 100 parts by weight of the binder.

These dispersants are disclosed in Japanese Patent Publication Nos. 39-28369 and 44
-17p45, U.S. Patent No. 48-15001, U.S. Patent No. 3.58'i', 993, U.S. Patent No. 3.4'70,
It is described in No. 021 Mei 41+1.

As a lubricant, silicone oil, carbon black,
Graphite, carbon black graft polymer, molybdenum disulfide, tungsten disulfide, 12 carbon atoms
Fatty acid esters obtained from monohydric alcohols having a total number of carbon atoms of 21 to 23 carbon atoms (so-called 4-carbon atoms, etc.) can also be used.

These lubricants are used in amounts of 02 to 2 parts by weight per 100 parts by weight of the binder.
It is added in a range of 0 parts by weight. Regarding this γ1, etc., publications such as Japanese Patent Publication No. 43-23889, No. 43-81543, U.S. Patent No. 3,470,021, U.S. Patent No. 3゜49
2.235, 3,497,411, 3,5
No. 23,086, No. 3,625,760, No. 3,
No. 630,772, No. 3,634,253, No. 3
M Technl-cal T)
j, eclo-qure Bulletin V
ol, 9, A 7, Pagg
779 (December 1966): ILKKTRONIK
1961 A12, Page 38Q, etc. are 12 years old.

The abrasives that may be used include commonly used materials such as fused alumina, silicon carbide chromium oxide, corundum, artificial corundum, diamond, artificial diamond, garnet, and emery (main components: frundum and magnetite). etc. are used.This abrasive has an average particle size of 0.05.
~5μ in size is used, particularly preferably 0
It is 1 to 2μ.

These abrasives have a ratio of 2 to 20 parts per 100 parts of the binder.
It is added in a range of parts by weight. These abrasive materials are disclosed in Japanese Patent Application Laid-Open No. 115510/1983, U.S. Patent No. 3.007,
80'7, same No. 3,041,196, same No. 3.6
No. 8'7°725, British Patent No. 1,145,349,
It is described in West German Patent (DT-PS) No. 853,211.

Antistatic agents that may be used include conductive powders such as graphite, carbon black, and carbon black graft polymers; natural surfactants such as saponins; nonionic + fti active agents such as alkylene oxide threads, glycerin series, and glycidol series. Agents: Cationic surfactants such as A-class alkyl compounds, quaternary ammonium salts, pyridine, other heterocycles, phosphoniums or sulfoniums: Carboxylic acids, sulfonic acids, phosphoric acids, sulfuric acid ester groups, phosphoric ester groups, etc. Examples include anionic surfactants containing acidic crystals such as diamino acids, aminosulfonic acids, and amphoteric surfactants such as sulfuric acid or phosphoric acid esters of amino alcohols.

Surfactants that can be used as antistatic agents are US Pat. Nos. 2.2'71,623 and 2,240.4.
'72, No. 2,288,226, No. 2,676
, No. 122, No. 2゜676.924, No. 2.6
No. '76,975, No. 2,691,566, No. 2
, No. 727,860, No. 2. '730,498, 'i' No. 2,742.3 'i' No. 9, 'i' No. 2,739,8
No. 91, No. 3,068゜101, No. 3,158,
No. 484, No. 3,201,253, No. 3,210
, No. 191, No. 3,294,540, No. 3゜41
No. 5.649, No. 3,441,413, No. 3, 4
No. 42,654, No. 3,475,174, No. 3,
545.9 'i' No. 4, West German Patent Publication (OL
S) 1,942,66.5, British Patent No. 1.07
'i', No. 317, No. 1.198,450, etc., as well as Ryohei Oda et al.-i! 'Synthesis of surfactants and their applications' (Maki Shoten 1964 edition): Ni, W. Bayley, 'Surface Active Agents' (Interscience Publications Inc. 19
1958 edition): by T. P. Sisley [Encyclopedia of Sir 7 Esactive Agents Volume 2] (Chemical Publishing Company 1964 edition):
“Surfactant Handbook” 6th edition (Sangyo Tosho Co., Ltd. 1932)
It is written in a certain book such as December 20, 1999 [1]. It is also possible to use compounds of general formula CI) or (IT) according to the invention. These surfactants may be added alone or in combination. The first one is used as an antistatic agent, but sometimes it is used for other purposes, such as dispersion, improving magnetic properties, moisturizing, etc. lt
In some cases, it is used as an improvement for l', and as an additive for fabrication.

Solvents for magnetic paint or solvents used when applying magnetic paint include ketones such as acetone and methyl ethyl ketone; seven alcohols such as methanol, ethanol, bromineol, butanol, ethyl acetate, butyl acetate, ethyl lactate, and vinegar. Illll
Winter/Esthetics such as IJ call monoethyl ether/l/
l'(neeμm4-1chireko=-4L-Jmu-glycolejimechirue
- Boolean Glycol monoethyl ether, dioxane, etc.σ) Glycol ethers: benzene, toluene,
Aromatic hydrocarbons such as xylene: methylene chlorite °,
Halogenated hydrocarbons such as ethylene chloride, carbon tetrachloride, chloroform, and dichlorobenzene can be used.

In addition, as materials for the non-magnetic support, polyester fij such as polyethylene terephthalate and polyethylene-2,6-naphthalate, polyolefins such as polypropylene, cellulose reading conductors such as cellulose triacetate and cellulose diacetate, and plastics such as polycarbonate are used. Non-magnetic metals such as Cu+Ae and Zn, ceramics such as glass, porcelain, and porcelain are primarily used.

The thickness of these non-magnetic supports is approximately 3 to 100 μm in the case of a film or sheet, preferably 5 to 5071 m.
The diameter of disk and card-shaped gifts is 30 μm to 10 μm.
If it is drum-shaped, it is cylindrical, and its shape is determined depending on the record to be used.

The non-magnetic support may have a surface opposite to the side on which the magnetic layer is provided for the purpose of preventing banding, transfer, etc., or may be coated with a so-called back coat (BPLckcoat).

Regarding bank coats, an example is U.S. Patent No. 2.804.
．． 4 fl No. 1, No. 3,293,066, No. 3
, No. 617゜378, No. 3,062,676, No. 3,734,772, No. 3.4 'i' 6,59
6. No. 2,643,048, No. 2゜803.
556 inches, same No. 2,887,462, same No. 2.923
, No. 642, No. 2,997,451, No. 3,00
No. 7,892, No. 3,041,196, No. 3,1
No. 15,420, No. 3 166.688 Rock, etc.

Further, a compound of general formula (I) or (IIJ) can also be used in the back coat layer.

Further, the support may be in any form such as tape, sheet, card, disk, drum, etc., and various monthly rates are selected depending on the shape and size as necessary.

The compound of the general formula (I) or (ID) according to the present invention, the strong abrasive powder, the binder, the l'J' agent, the bar lubricant, the abrasive, . etc. are mixed up (
(It is considered a d-type paint.

For cross-mixing, the Ibi compound of general formula (I) or (II), the ferromagnetic powder, and each of the above-mentioned components are first charged into a kneading machine either simultaneously or one after another. For example, the ferromagnetic powder is first added to a solution containing the compound of general formula (I) or (ID) and kneaded for a predetermined period of time, and then the remaining components are added and kneaded continuously to obtain a magnetic paint. be.

Various kneaders are used for cross-mixing and dispersion. For example, two-roll mill, three-roll mill, ball mill, pebble mill, sand grinder, Szegvari attritor, high-speed impeller disperser, high-speed stone mill,
High speed? There are IjM mills, dispariegoos, high-speed mixers, homogenizers, ultrasonic dispersion machines, etc.

When the magnetic paint according to the present invention is dispersed by these methods, extremely good dispersion is achieved, and when the dispersibility evaluation method described in the examples is used, the number of aggregates when observed with an electron microscope is lower than that of the conventional method. It was much less than that of magnetic paint.

The technology related to crosstalk dispersion is written by T, O, PATTON.
a1nt Flow an4 Pigment Dis
persion (1964 John Willey
& 5ons).

Also, U.S. Patent Nos. 2,581,414 and 2,85
It is also mentioned in each specification of No. 5,156.

Coating methods for coating the magnetic paint onto the support to form the entire magnetic layer include air doctor coating, blade coating, air knife coating, squeeze coating, impregnation coating, reverse roll coating, transfer roll coating, gravure coating, kiss coat, cast coat,
Spray coating can be used, and other methods are also possible.
(issued on the 0th).

The magnetic layer coated on the support by such a method necessarily has a high strength in the layer. After performing a treatment to orient the rη powder, the formed magnetic layer is dried.

Further, if necessary, the magnetic recording medium of the present invention is manufactured by subjecting it to a surface smoothing process or cutting it into a desired cedar shape.

In this case, the orientation A'H field C is approximately 500% in alternating current or direct current.
~3500 Gauss, and the drying temperature is approximately 50~10
The drying time of IM-1 at about 0° C. is preferably about 3 to 10 minutes.

The method for orienting the ferromagnetic powder according to the present invention may be the method described in the above patent.

For example, U.S. Patent Nos. 1,949,840 and 2,7
No. 96°359, No. 3,001,891, No. 3.
1 '72. 'i"i' No. 6, same No. 3,416,94
No. 9, No. 3,473,960, No. 3゜681.1
Specifications of No. 38, Japanese Patent Publication No. 32-3427, No. 39-
No. 28368, No. 40-23624, No. 40-236
No. 25, No. 41-13181, No. 4B-13043, and No. 4B-39722. The orientation direction of the ferromagnetic powder is determined by its use.

1! In the case of sound tapes, small video tapes, and memory tapes, it is parallel to the length of the tape;
In the case of broadcast videotape, 30° to the length direction
It is oriented with an inclination of 90° to 90°.

The magnetic recording medium according to the present invention produced as described above had extremely good abrasion resistance and excellent storage stability compared to conventional media. In addition, the magnetic recording medium according to the present invention has been recast to have a S/N ratio (ratio of signal to noise) of 1l111, which is higher than that of the conventional recording medium, and the reproduction output is also higher than that of the conventional one. [RG raw output? V) I was able to do that. Due to the above-mentioned advantages, the magnetic C-type medium according to the present invention exhibited excellent performance even in high-density I-speed recording. Furthermore, in the present invention, a wide range of the above-mentioned ferromagnetic powders can be used, but it is noteworthy that when metal powder or G's alloy is used as the elastic powder, it is compared to conventional magnetic recording media. The medium exhibited extremely excellent performance, and it is thought that the remarkable effect of preventing rust formation also contributed to the improvement in the performance of the medium, as well as the improvement in dispersibility.

The present invention will be explained in more detail below using Examples.

It will be readily understood by those skilled in the art that the ingredients, proportions, order of operations, etc. shown herein may be varied within the spirit of the invention.

Therefore, the invention should not be limited to the examples below. In addition, in the following $ example, all “divisions” refer to one city.
：、(part)", and the "n-diodeve" used in the examples is "videotape".
(h J L'-e Takeitaro Example 1 The exemplified compounds according to the present invention shown in Table 1 below were mixed with 500 parts of methanol.1.
00 parts were added and mixed and dispersed. After that, filter, air dry for 1'ff, then dry under reduced pressure in SO'C for 13 seconds! 1>'+,
Table 1 shows 1-treated ferromagnetic +'+ powders 1 to 25 made71
+7 sushi.

Noon/51 Margin Table 1 Processed ferromagnetic powder obtained as above-1 to 25
A magnetic tape was prepared by applying a magnetic paint having the composition shown below onto a non-magnetic support.

The above composition was placed in a ball mill, and a magnetic field of 1,200 Gauss was applied to one side of the well-mixed mixture to give a dry film thickness of 5 μm, and the mixture was coated and dried.

The wide magnetic wave thus obtained was supercalendered and slit to a length of 12.7 mm rlj to obtain a videotape. The tapes produced using the above-mentioned treated ferromagnetic powders Al-25 are designated as inventive samples A1-25, respectively.

Example 2 A magnetic alloy (Fe-(!o
-Ni) was added and mixed and dispersed.

Thereafter, it was filtered, air dried, and dried under reduced pressure to produce treated ferromagnetic powders A-26 to A-5o shown in Table 2.

21. Using the thus obtained treated ferromagnetic powder points -26 to -50, an iFE paint was prepared with the following composition.

After the above composition was thoroughly mixed and dispersed in a ball mill, 3 parts of tolylene diisocyanate was added.
- to obtain a magnetic paint. 15 μm of this paint
51. It was coated on one side of a polyethylene terephthalate film and dried while applying a magnetic field of 1200 CAU so that the dry film thickness was 51 parts m. Thus obtained Hiro II]
Inventive samples 16-26 to 50 were prepared in the same manner as inventive samples j6-1 to j6-25 of implementation z111.

Example 3 The above composition was placed in a ball mill, thoroughly mixed and dispersed, and then a blackish brown magnetic paint was prepared. Using this σ) paint, a videotape was obtained in the same manner as inventive paper 1"lA 1 to 25 in Example 1. This tape was used as inventive sample A, 51
~75.

Example 4 The above-mentioned structure was first put into a ball mill, thoroughly mixed and dispersed, and then coated with a black-colored magnetic paint. Using this paint, a videotape was made in the same manner as the invention samples y%-26 to 50 of Example 2. This tape was attached to the sample plate 76 of the present invention.
~100.

Example 10 except that untreated CO gold-containing e,04 was used.
A videotape was made in the same way as the present invention 1.
J-shita.

This is referred to as comparative sample A-1.

A videotape was produced in the same manner as in Example 2σ) of the present invention except that an untreated magnetic alloy (Fe-Co-Ni) was used. This is designated as comparative sample genus-2.

Comparison f+113 The above composition was placed in a ball mill and thoroughly mixed and dispersed to obtain a dark brown magnetic paint. Example 1 using this paint
A videotape was obtained in the same manner as the sample of the present invention. This tape is designated as Comparative Sample No. 3.

Comparative Example 4 The above composition was thoroughly mixed and dispersed in a ball mill to obtain a magnetic paint.

A videotape was obtained using this paint in the same manner as the sample of the present invention in Example 2. This tape is referred to as comparative sample A4.

X,,i,,1. A.

After putting the above-mentioned set 1 and 4 in a ball mill and sufficiently mixing and dispersing them, a dark brown magnetic paint was obtained. Using this paint '4
A videotape was obtained in the same manner as in Example 1.

This tape is referred to as comparative sample 16-5.

Comparative Example 6 The above composition was thoroughly mixed and dispersed in a ball mill to obtain a magnetic paint.

A videotape was obtained in the same manner as in Example 2 using this paint. This tape is referred to as comparative sample j6-6.

Comparative Example 7 A magnetic coating material was obtained by thoroughly mixing and dispersing the composition described above in a ball mill.

Using this paint, a videotape was prepared in the same manner as in Example 2. This tape was set to have a specific axis sample height of -7.

Comparative example day: Place the above set 1 in a ball mill. 11. Rinse (after dispersion, blackish brown σ) for 1 minute! +7:h
: O this time r1 is Ill and actual Qi example 1 and Ii'l
J 4<i' and 7 and hite Ay--bu 芥'iJt/'-
.

(Compare Ninotape n1tv'F A 8 To'l'
7:s.

Each of these, ilt Y'l o) sex j'7 JL r3+
y tidlqh, 1st 144 'rq', ,”S
Table 1, Saitome Fgzu. N J O, Br/Bm,
! -417'l IF5 ratio? , 11L1 value or large R'l, /iθ characteristic, C1 main is better.

Table 3 a) RF output measurement using a VTR deck for 4MH
The RIP output at z was measured and expressed as a relative value with the output of Comparative Sample-2 as 0.

b) The SlN ratio is 0.0. Regarding the sample tape using ferromagnetic powder, the value of comparative sample-1 is Q
dB, FQ -Co -N15- Sen? Il? Taking into consideration the sample tape used as the sexual powder, the candy of Comparative Sample-2 was expressed as a relative value in OdB.

C) Abrasion resistance was determined by sliding a 5 m long tape back and forth 1) times at a speed of 7 m/SeG using a rectangular head, and then measuring the tape surface using a 1471J11 and a microscope. .

dno Storage stability is 80% Ini degree. 1. l J9
241R under 40℃Q) conditions? 111 was determined due to the occurrence of sticking after lij gelatinization.

From the above conclusion 44, is the magnetic recorder according to the present invention? Medium (:
↓ Compared to conventional products, it has excellent abrasion resistance and storage stability (for example, no sticking occurs during storage), and has excellent S/N ratio, making it suitable for high-density recording with high playback output. It was found that the magnetic recording medium was a magnetic recording medium with good abrasion resistance and storage stability.Although Examples 1 to 4 are related to video tapes, when used as audio tapes, the abrasion resistance and storage stability are good as in this example. It was also a magnetic recording medium suitable for high-density recording, with an excellent S/N ratio and high reproduction output.

Example 5 The magnetic paints used to create the magnetic recording media according to the present invention in Examples 1 to 4 and the comparative magnetic paints used to create the samples in Comparative Examples 1 to 8 were applied respectively. When wet, the film was coated onto a glass plate to a thickness of 60 microns using a vacuum cleaner, and the degree of dispersion was observed using a microscope.
The comparative magnetic paint had a lot of aggregates, whereas the magnetic paint used to create the samples of Examples 1 to 4 was uniformly dispersed and had very few aggregates. .

Agent: Yoshimi Kuwabara Procedural Amendment Letter dated 97116/1982 Kazuo Wakasugi, Commissioner of the Japan Patent Office 2 Name of the invention Magnetic recording medium 3 Relationship to the Nagisa case with Supplement 11 Patent applicant address Nishi-Shinjuku IJ No. 26, Shinjuku-ku, Tokyo Total No. 2 Name (+27) Nobuhiko Moto for Roku Konishi Photography Co., Ltd. Representative Director 5 Date of amendment order IzJ Voluntary 6, m-positive subject specification 1 - Detailed explanation of the invention" σ] Column 7 , Contents of the amendment (a) The column of "Detailed description of the invention" has been revised as follows σ) 1 In the -P-OAC general formula (11), the number of phosphoric acid residues represented by this formula is The number of nitrogen atoms (N) in the compound represented by , °゛-general formula) plus l (7L1i+t). Procedural amendment special ¥1-1!°Length'1', Mr. Kazuo Wakasugi I Width '10 Display Showa 5F IT'+, +'l Application No. 158464 Li2 Name of the invention Magnetic recording medium 3 Supplement 11 Relationship between J and 1jt I'1 Patent H'1 applicant's address Shinjuku, Tokyo 1〆4 Shinjuku N'l''+26 total 2 names (12
7) Roku Konishi Photo T-gyo Co., Ltd.? -1st Generation I Possible x Director Kawa
Nobuhiko Moto 4 Agent 〒191 JII: Location Tokyo + 1J”] 'Nakasakura Town L Planned Land Konishi Rokusha 1'! 1 Business Co., Ltd. Ne 1 5, Supplementary 11 Order 1 Old J Voluntary 6, The "Detailed Description of the Invention" column 7 and the contents of the amendment "Detailed Description of the Invention" column of the specification to be amended are corrected as follows.

(1) Page 76, lines 10 to 15 from the top, σ) Delete "The orientation force l771 of the ferromagnetic powder is oriented by...fire."

Claims (1)

[Scope of Claims] 1) A magnetic recording medium comprising a compound represented by the following general formula CI) or (II) in a magnetic layer on a non-magnetic support. 1 (However, in general formula CI) or (TI), x' is a saturated or unsaturated alkyl group having 1 to 30 carbon atoms (which may be straight or branched, or may be a cycloalkyl group, It may have a substituted amine group, ).rogen atom, or a substituted or unsubstituted aryl group as a substituent. or lFf having 3 to 30 carbon atoms
Alternatively, it may have a saturated or unsaturated, substituted or unsubstituted argyl group having subunits 1 to 20; a substituted amino group; or a halogen atom. The alkyl group as xl above may also have a phosphoric acid residue represented by -P-OA (described later) and 0A, R1 is an alkyl group having 1 to 5 carbon atoms, a substituted or unsubstituted aryl group having 6 to 15 carbon atoms (as a substituent, a straight or branched alkyl group having 1 to 5 carbon atoms) , may have a halogen atom or a substituted amino group) or a hydrogen atom, and A and A' represent a hydrogen atom, an alkali metal, an alkaline earth metal, (represented by -OH, OH, OslH) shoulder jI4
% (Tadashi represents an integer from 1 to 10) It also represents an ammonium component forming an on pair, A and A' may be the same or different, and represent 1, and Q is a carbon atom or a carbon atom. represents a saturated 5- or 6-shell ring according to diJ, R' represents a straight or branched alkyl group having 1 to 5 carbon atoms, n represents an integer of O to 4, xl represents an acyl group having 1 to 20 carbon atoms or the same group as X' above. F2) A special compound R' characterized in that a compound represented by the following general formula (I) or (ID) is contained in a magnetic layer on a non-magnetic support in the form of a processed ferromagnetic powder. F The magnetic recording medium according to claim 1. 1 (However, in the general formula (I) or (Ll), xl is a saturated or unsaturated alkyl group having 1 to 30 carbon atoms (linear or branched). may be a cycloalkyl group, and may have a substituted amino atom, a norogen atom, or a 1δ or an unsubstituted aryl group as a substituent) or a substituted group having 3 to 30 carbon atoms. or an unsubstituted aryl group (11-cyclic compound with 1δ
The above-mentioned substituent may include a saturated or unsaturated substituted or unsubstituted alkyl group having 1 to 20 carbon atoms; a substituted amino group; or a halogen atom. ), and any one of the alkyl groups and phosphoric acid residues represented by -P-OA (described later) as X', R1 is 1rkyl7i4. having 1 to 5 carbon atoms.
. Ilf-substituted or unsubstituted aryl group having 6 to 15 carbon atoms (ft'j substituent has 1 to 15 carbon atoms)
It may have a straight or branched alkyl group having 5, a halogen atom, or a substituted amino group. ) or represents a hydrogen atom, A and A1 are hydrogen atoms, alkali metals, alkaline earth metals, +C 0 0 1 H (however, 1 represents an integer from 1 to 10), and Represents a pair of ammonium components, A and A' may be the same or different, and represent 1) Q is a purple atom or! , represents a 2ψ elementary atom, and the formation I7
, R' represents a straight chain or branched alkyl group having 1 to 5 carbon atoms, n represents an integer of 0 to 4, and X++ is an acyl group having 1 to 20 carbon atoms or the same as the above X+ also represents σ). )