JPS60173096A - Fluorine-based lubricant - Google Patents

Abstract

PURPOSE:To provide a fluorine-based lubricant contg. a specified compd. as effective ingredient and having excellent lubricating property and durable adhesive power to the surface to be lubricated. CONSTITUTION:The fluorine-based lubricant contains a compd. of formula I as effective ingredient (where R1 is straight chain or branched polyfluoroalkyl; X is -CnH2n-, -CHONRCnH2n-, SO2NRCnH2n- or formula II; n is 1-10; R is 1-6C alkyl or H; Y is -CmH2m-, -(C2H4O)m-, -(C3H6O)m-, -(C3H6O)m C2H4-, etc.; m is 1- 20). The compd. is dispersed in water or dispersed or dissolved in org. solvent and is applied by spraying or brushing to the surface of an object, or the object may by dipped in the dispersion or soln. The solvent includes alcohols, ketones and halogenated hydrocarbons.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluorine-based lubricant that has excellent lubricity and durability such as adhesion to surfaces requiring lubricity.

glass, metal, plastic, wood, rubber.

In various situations where articles such as leather come into contact with each other, various lubricants are used to reduce pedal resistance, prevent wear, and improve lubricity.

Examples include solid lubricants using metal chlorides such as Mo82, metal oxides such as PbO, metal soaps, and fluororesins such as polytetrafluoroethylene. The present invention relates to such a solid lubricant, which can be dispersed by kneading into plastic or rubber, or can be applied to glass, gold maple, etc.
It imparts lubricity to the surface of an article by coating, drying, and adhering to the surface of an article made of various materials such as plastic. The fluorine-based lubricant of the present invention not only has excellent lubricity, but also has advantages such as high adhesion to the surface of articles, chemical stability, and non-corrosion.

The fluorine-based lubricant of the present invention contains a compound represented by the following general formula (I) (hereinafter referred to as compound A) as an active ingredient.

RfXOYOOOH...Tagawa...(I) In the formula, Rf
is a linear or branched polyfluoroalkyl group having 3 to 20 carbon atoms, specifically 09F,, -,C! F3-
OF-(OF2)2-, HCF20F20F2-, etc. OF3. Preferably, it is a linear perfluoroalkyl group having 6 to 10 carbon atoms. or -CnH2n-.

−0ONROn4n −, −8O2NROnH2n −
, or -0H2-OH-OH2-OH, where n is an integer of 1 to 10, and R is an alkyl group having 1 to 6 carbon atoms or a hydrogen atom. Y-C! mH2m
-, -(02H40)m-+ -(03H60)ml
(C2H40)m02H4r(03H60)mC2H
4, (C!3H60)m (02H40)I C2H4
.

(C!2H40)'1 (C!3H60)m 02H4
, (Ci3H60)m (C2H40)1r(02H4
0)1 (03H60) represents m-, m and ] are 1 to
Digitize it by an integer of 20. A preferred specific example of the monster A is Rf
C2H4002H4000H, Rf02 H40-(0
2H40) 5-C! OOH, Rf02H40 (03H6
o) 3-C! 21y, 4COOH.

RfCO sealed HC2H, 002H4000H,! ,,,
RfSO2NO2H4002H4C0OH.

2H5 RfC! 2H40((,,)(<0)-(03H60)
-000H, etc., but is not limited to these. Compound A can be produced, for example, by the following method. .

The lubricant of the present invention can be prepared by spraying or brushing the surface of an article by dispersing Compound A in water or dispersing or dissolving it in an organic solvent, or by applying the dispersion or solution to the article. It can be treated by immersing it in water. When the lubricant of the present invention is dispersed in water, it is nonionic.

One or a mixture of two or more of various surfactants such as anionic, cationic or amphoteric surfactants may be used. Ethyl alcohol is an organic solvent.

Alcohols such as Inglobil alcohol, acetone,
Ketones such as methyl ethyl ketone, esters such as methyl acetate, ethyl acetate, and isoamyl acetate, and ethers such as diethyl ether and dioxane W4. Meflchloroform, ) IJ Chloroethylene, Tetrachloroethylene, Tetrachlorodifluoroethane, 1,1.2-)
One type or a mixture of two or more of halogenated hydrocarbons such as dichlorotrifluoroethane and meta-xylene hexafluoride may be employed. Spray treatment can be performed by adding a propellant such as dichlorodifluoromethane, monofluorotrichloromethane, or dichlorotetrafluoroethane to such a dispersion or solution and filling it into a suitable container.After treatment, it is immediately dried. Can exhibit lubricity. The amount of Compound A in the solvent or water is usually 0.01 to 10% by weight, preferably 0.05 to 0.5% by weight.

Fluorine type of the present invention? There are no restrictions on the articles that can be treated with the lubricant, and the lubricant can be applied to various sliding members such as bearings. In addition to sliding members, for example, by treating the surface of a magnetic recording tape or a magnetic head for recording, recording, or measurement, it is possible to reduce the degree of wear on both, but also to prevent undesirable wear and charging. <<The treated tape has the advantage that blocking between tapes is less likely to occur. In particular, with video tapes, the relative speed between the magnetic head and magnetic tape is about 10 times faster than with recording tapes, etc.
The lubricant of the present invention, which has excellent lubricity and durability, is effective because when a still image is reproduced, wear is likely to occur due to a large coefficient of friction during low-speed contact. For cobalt or nickel fathom vapor-deposited tapes, apply χ-F820 to the surface.
In tapes in which a magnetic layer is formed using a magnetic coating material in which magnetic powder such as G or OrO□ is dispersed in a binder resin such as polyurethane, polyester, or vinyl acetate copolymer, the coating material also has a protective layer. In the tape, the lubricant of the present invention may be dispersed in the protective layer. Lubricants in magnetic coatings can also help improve the dispersibility of magnetic powders.

Examples of the present invention will be described in more detail below.

After one implementation, Comparative Example A 0.5 wt % isopropyl alcohol bath solution containing the compounds shown in Table 1 below was uniformly applied to an aluminum plate whose surface had been thoroughly cleaned, and then dried to form a film of the above compound. The friction coefficient of this board was measured using a friction coefficient measuring device EFM-4 manufactured by Toyo Sokki ■, and the lubricity and performance were evaluated. Furthermore, after being worn 100 times using a Gakushin type abrasion tester, the friction coefficient was measured again using the same measuring device to evaluate lubricity and durability. The results are shown in Table 1.

Continuing from page 1 ■ Int, CI, ' Decorative d symbol Office internal serial number procedure amendment November 7, 1980 Manabu Shiga, Director General of the Special Fraud Agency 1, Indication of the case 1982 Patent Application No. 26950 2 , Name of the invention Fluorine-based lubricant 3, Relationship to the case of the person making the amendment Patent applicant address 2-1-2 Marunouchi, Chiyoda-ku, Tokyo Name (
004) Asahi Glass Co., Ltd. Toranomon Chiyoda Building Voluntary amendment e, Number of inventions increased by amendment None 7, Subject of amendment f--4-4, -, 2t 8, Contents of amendment (1) Patent claims in the specification Correct the range as shown in the attached sheet.

(2) Bottom of page 3 of specification, line 533') r”・-(C
J4) m-, -(Cs)IsO)+a-.

"..." and "...-CC4H@0)m-(C2H40)I-" from the first line from the bottom to the first line from the top of the fourth page
2-(C2)140), -(Cs)IsO)m-...
・Delete ".

(3) 4th line from the top of page 4 of the specification r -COOH, Re C2)+40 (raHsO)3
-C2H4COOH, J is replaced by r-C41 (acO
OH,R,C2HaO(CaHsO)a C2HaCO
Correct the description to OH, J.

(0 Specification, page 4, line 7 from the top rR, C2H40(C2H40)-(Ca1480)-
COOH...'' is replaced by rR,C2HaO(C2
H40)-(C3HeO) CJaCOOH..."
The description will be corrected.

(5) Compound r Ca F 17 C2H40÷C2H40+! in Examples on page 8 of the specification. , C
00HJ.

rCs F+, CJaO+CaHe0 +3 C00H
J, and r(, F+tCzHaO+CaHsO++
Ct'HaO+C00HJ respectively r(,F,,c2H,o(-C21(,o + s
C2HaCOOHJ.

'Cs FlllC2H40÷CaHsO+s CJa
COOHJ, and r(, FItC2HsO+ CoH
aO+ + C2H40+ CJs (corrected to iooHJ).

Attachment> 2. Claim 1: A fluorine-based lubricant characterized by containing a compound represented by the following general formula (I) as an active ingredient.

RrXOY(OOH......(I) (However, in the formula, Rf is a linear or branched polyfluoroalkyl group having 3 to 20 carbon atoms.

X is -CnH2n-, -CONRCnH2n, -5O
2NRCnH2n- or -G)+2-CH2CH2- 〇H n is an integer of 1-10, R is an alkyl group having 1 to 6 carbon atoms or a hydrogen atom.

l is an integer from 1 to 20.

Claims (1)

[Claims] 1. A fluorine-based lubricant characterized by containing a compound represented by the following general formula α) as an active ingredient. RfXOYOOOH・・・・・・・・・・・・・・・
...(I) (However, in the formula, Rf is a linear or branched polyfluoroalkyl group having 3 to 20 carbon atoms. Or -CnH2n -, -C!0NRC!nH2n -
, -802NROnH2n - or -0H2-OH-0
H2-OH n is an integer of 1 to 10, R is an alkyl group having 1 to 6 carbon atoms or a hydrogen atom. Y is 10mH2XQ, (02H4o)m, -(0
3H60)m-. (03H60)m02H4-, (C!2H40)m(4
H4. (a3a,o)m (C2H40)1 p (CzH4
0)l (CsHsO)m-+((1!sHgo)m
(C*LO)1 02H4-+ or -(C!2H40)
1(C3H6)m C2H4-. m is an integer from 1 to 20. 1 is an integer from 1 to 20.