JPH02221387A - Chlorofluorohydrocarbon-based buffing detergent - Google Patents

Abstract

PURPOSE:To produce a new buffing detergent not polluting underground water by incorporating chlorofluorohydrocarbon having a specified number of carbon atoms as an effective component. CONSTITUTION:A buffing detergent contg. one or more kinds of 4C chlorofluorohydrocarbons such as 1-chloro-1,1-difluorobutane, 3-chloro-1,1,1- trifluorobutane, 1-chloro-1,1,3,3-tetrafluorobutane and 2- chloro-1,1,1,4,4,4-hexafluorobutane as effective components is prepd. At least one kind of org. solvent selected among hydrocarbons such as n-pentane, alcohols such as methanol, ketones such as acetone, halogenated hydrocarbons such as dichloromethane, esters such as methyl acetate, etc., may be incorporated into the detergent by about 0-50wt.%. The detergent is fit to remove abrasive materials sticking to metal parts, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a buffing cleaning agent used for removing abrasives adhering to metal parts and the like that have been polished using a buffing agent.

[Prior art] Abrasives are used in the buffing process of precision metal parts, decorative parts, etc., but if these remain attached, the product will not be finished in many cases.Therefore, the finishing of such parts is usually In the process, cleaning is performed using an organic solvent. As the organic solvent, 1.1. ．． 1-Trichloroethane is widely used.

[Problems to be Solved by the Invention] The present invention aims to reduce the amount of 1,1.1-) dichloroethane used, since it is undesirable from the standpoint of groundwater contamination. The object of the present invention is to provide a new buffing agent that can replace dichloroethane.

[Means for Solving the Problems] The present invention has been made to achieve the above-mentioned objects, and
The chlorinated fluorinated hydrocarbon of the present invention, which provides a buffing cleaning agent containing a chlorinated fluorinated hydrocarbon having 4 carbon atoms as an active ingredient, includes 1-chloro-1
, 1-difluorobutane (b.

p, 55.5°C), 3-chloro-1,1,1-)lifluorobutane (b, p, 66°C), l-chloro-1
, 1,3,3-tetrafluorobutane (b, p, 7
0℃), 2-chloro-1,1,1,4,4,4-hexafluorobutane (b, p, 51℃), 4-chloro-1,1゜1, 2.2.3.3 -heptafluorobutane (b, p, 54°C), 3,4-dichloro-1,1,
1,2,2,3-hexafluorobutane (b, 9.72
℃), 2.3-dichloro-1,1,1,4,4,4-hexafluorobutane (b, p, 78℃), 4,
4-dichloro-1,1,1,2,2,3,3-hebutafluorobutane (b, p, 76, 5 °C), 1-chloro-2,2,3,3-tetrafluorocyclobutane (b ,
p, 73°C), 1,1-dichloro-2,2,3,3
-tetrafluorocyclobutane (b, p, 84°C)
, 1-chloro-2,2,3,3,4,4-hexafluorocyclobutane (b, p.

One type or a mixture of two or more types selected from hydrogen-containing chlorinated fluorinated hydrocarbons such as 40°C) is preferred.

The buffing cleaning agent of the present invention can contain various other components depending on various purposes.

For example, in order to enhance the removal effect of the abrasive, at least one organic solvent selected from hydrocarbons, alcohols, ketones, halogenated hydrocarbons, or esters can be included. The content of these organic solvents in the buffing cleaning agent is 0 to 50% by weight, preferably 1% by weight.
0 to 40% by weight, more preferably 20 to 30% by weight.0 When the mixture of the chlorinated fluorinated hydrocarbon and organic solvent of the present invention has an azeotropic composition, the azeotropic composition is Particularly preferred is the use of

The hydrocarbons are preferably linear or cyclic saturated or unsaturated hydrocarbons having 1 to 15 carbon atoms, such as n-pentane,
Isopentane, n-hexane, isohexane, neohexane, 2,3-dimethylbutane, 3-methylpentane,
n-hebutane, isohebutane, 3-methylhexane, 2
．． 4-dimethylpentane, n-octane, 2-methylhebutane, 3-methylhebutane, 4-methylhebutane, 2
, 2-dimethylhexane, 2.5-dimethylhexane,
3.3-dimethylhexane, 2-methyl-3-ethylpentane, 3-methyl-3-ethylpentane, 2.3.3
-) dimethylpentane, 2.3.4-) dimethylpentane, 2.2.3-) dimethylpentane, isooctane, nonane, 2.2.5-) dimethylhexane, decane, dodecane, 1-pentene, 2-pentene , 1-hexene, 1-octene, 1-nonene, 1-decene, cyclopentane, methylcyclopentane, cyclohexane,
It is selected from methylcyclohexane, ethylcyclohexane, bicyclohexane, cyclohexene, α-pinene, dipentene, decalin, tetralin, amyl, phosphorus, amylnaphthalene, and the like. More preferably n-pentane, neohexane, 2,3-dimethylbutane, n-
These include hexane, cyclopenkune, cyclohexane, n-hebutane, and the like.

The alcohols are preferably chain or cyclic saturated or unsaturated alcohols having 1 to 17 carbon atoms, such as methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, and 5ec- Butyl alcohol, tert-butyl alcohol, pentyl alcohol, 5ee-amyl alcohol, 1-ethyl-1-propanol, 2-methyl-
1-butanol, isopentyl alcohol, tert-
Pentyl alcohol, 3-methyl-2-butanol, neopentyl alcohol, 1-hexanol, 2-methyl-1-pentanol, 4-methyl-2-pentanol,
2-ethyl-1-butanol, 1-heptatool, 2-
heptatool, 3-heptatool, 1-octanol,
2-octatool, 2-ethyl-1-hexanol, 1
-nonanol, 3.5.5-)-dimethyl-1-hexanol, 1-decanol, 1-undecanol, 1-dodecanol, allyl alcohol, propargyl alcohol, benzyl alcohol, cyclohexanol, 1-methylcyclohexanol, 2-methyl Cyclohexanol, 3-methylcyclohexanol, 4-methylcyclohexanol, α-terpineol, atonitinol,
The alcohol is selected from 2,6-dimethyl-4-heptatool, trimethylnonyl alcohol, tetradecyl alcohol, heptadecyl alcohol, and the like. More preferred are methanol, ethanol, isopropyl alcohol and the like.

1 to 9 saturated or unsaturated hydrocarbon groups) are preferred, including acetone, methyl ethyl ketone, 2-pentanone, 3-pentanone, 2-hexanone, methyl butyl ketone, methyl isobutyl ketone,
2-heptanone, 4-heptanone, diisobutyl ketone, acetonylacetone, mesityl oxide, holon, methyl-〇-amyl ketone, ethyl butyl ketone, methylhexyl ketone, cyclohexanone, methylcyclohexanone, isophorone, 2,4-bentanedione, di It is selected from acetone alcohol, acetophenone, fenchen, etc. More preferred are acetone, methyl ethyl ketone and the like.

The halogenated hydrocarbons are preferably saturated or unsaturated halogenated hydrocarbons having 1 to 4 carbon atoms, such as dichloromethane, carbon tetrachloride, chloroform, 1.1-dichloroethane, 1.2-dichloroethane, 1. 1.1-trichloroethane, 1.1.2-trichloroethane, 1.1.
1.2-tetrachloroethane, 1.1.2.2-tetrachloroethane, pentachloroethane, 1.1-dichloroethylene, trans-1,2-dichloroethylene, c
It is selected from is-1,2-dichloroethylene, trichlorethylene, tetrachloroethylene, 1-chloropropane, 2-chloropropane, 1-bromopropane, 2-bromopropane, and the like. More preferably dichloromethane, 1.1.1-trichloroethane, trans
-1,2-dichloroethylene, cis-1,2-dichloroethylene, trichlorethylene, tetrachlorethylene, 2-bromopropane, etc.

The esters are preferably those represented by the following formula, R+ -COO-R2, ◎-〇〇OR+ COOR2 (where R1, R2, R3, R4, R5, R6 are H or the number of carbon atoms 1 to 19 saturated or unsaturated bond-containing hydrocarbon groups).

Specifically, methyl formate, ethyl formate, propyl formate,
Butyl formate, isobutyl formate, pentyl formate, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate, 5ec-butyl acetate, pentyl acetate, isopentyl acetate, 3-methoxybutyl acetate, 5ec-hexyl acetate , 2-ethyl butyl acetate, 2-ethylhexyl acetate, cyclohexyl acetate, benzyl acetate, 10 methyl pionate, ethyl propionate, butyl propionate, isopentyl propionate, methyl butyrate, ethyl butyrate, butyl butyrate, isopentyl butyrate, isobutyl isobutyrate , 2-hydroxy-
Ethyl 2-methylpropionate, butyl stearate,
Pentyl stearate, methyl benzoate, ethyl benzoate, propyl benzoate, butyl benzoate, isopentyl benzoate, benzyl benzoate, ethyl abietate, benzyl abietate, bis-2-ethylhexyl adipate, γ-butyrolact, oxalic acid Diethyl, dibutyl oxalate, dipentyl oxalate, diethyl malonate, dimethyl maleate, diethyl maleate, dibutyl maleate, dibutyl tartrate, tributyl citrate, dibutyl sebacate, bis-2-ethyl sebacate, dimethyl phthalate, phthalate It is selected from diethyl acid, dibutyl phthalate, bis-2-ethylhexyl phthalate, dioctyl phthalate, and the like. More preferred are methyl acetate, ethyl acetate and the like.

The buffing cleaning agent of the present invention may further contain various cleaning aids, water, surfactants, stabilizers, or hydrogen-containing chlorinated fluorinated hydrocarbons that have little effect on ozone depletion. As a cleaning method, conventional methods such as hand wiping, dipping, spraying, shaking, ultrasonic cleaning, and steam cleaning can be used.

[Examples] Examples 1 to 21 Abrasive removal tests were conducted using the buffing cleaning agents shown in Table 1 below.

Buffing agent for watch frames (GS-1, Soken Kogyo■
After polishing with a buffing detergent (manufactured by J.D. Co., Ltd.), the specimens were immersed in a buffing cleaning agent, subjected to ultrasonic waves for 3 minutes, and then taken out and visually observed to see how the polishing agent had been removed.The results are shown in Table 1.

Table 1 Δ: Trace amount remaining x: Force rr) Remaining Table 1 (Continued) [Effects of the Invention] As is clear from the examples, the buffing cleaning agent of the present invention has an excellent abrasive removal effect. It is.

Furthermore, it is advantageous over the conventionally used 1,1,1-trichloroethane in that the abrasive agent made of 1, metals, plastics, elastomers, etc. has less adverse effect on the articles to be removed.

Claims (1)

[Claims] 1. A buffing cleaning agent containing a chlorinated fluorinated hydrocarbon having 4 carbon atoms as an active ingredient. 2. Chlorinated fluorinated hydrocarbons include 1-chloro-1,1-difluorobutane, 3-chloro-1,1,1-trifluorobutane, 1-chloro-
1,1,3,3-tetrafluorobutane, 2-chloro-
1,1,1,4,4,4-hexafluorobutane, 4-
Chloro-1,1,1,2,2,3,3-heptafluorobutane, 3,4-dichloro-1,1,1,2,2,3-
Hexafluorobutane, 2,3-dichloro-1,1,1
, 4,4,4-hexafluorobutane, 4,4-dichloro-1,1,1,2,2,3,3-heptafluorobutane, 1-chloro-2,2,3,3-tetrafluorocyclobutane , 1,1-dichloro-2,2,3,3-tetrafluorocyclobutane, 1-chloro-2,2,3,3,
The buffing cleaning agent according to claim 1, which is 4,4-hexafluorocyclobutane. 3. Hydrocarbons, alcohols,
The buffing cleaning agent according to claim 1, which contains at least one selected from ketones, halogenated hydrocarbons, and esters.