JPH01139780A - Cleaner for buffed article - Google Patents

Abstract

PURPOSE:To prevent the pollution of underground water by using dichlorofluoroethane as an effective component. CONSTITUTION:This cleaner for buffed article contains dichlorofluoroethane as an effective component. Other various components may be added to the cleaner according to the purposes for which the cleaner is used. For example, in order to enhance the abrasive removing effect, hydrocarbons, alcohols and ketones may be added. When abrasives are removed from an article composed of a metal, plastics and elastomer, the cleaner has a less harmful effect on the article than conventional 1,1,1-trichloroethane polluting underground water.

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 etc. polished using a buffing agent.

[Prior Art] Abrasives are used in the buffing process of precision metal parts, decorative parts, etc., but in many cases, products cannot be produced if these remain attached. Therefore, in the finishing process of such parts, organic solvents are used for cleaning. +, +, +-trichloroethane are widely used as solvents.

[Problems to be solved by the invention] The unexploded 1111 is the conventionally used 1, 1. Since 1-trichloroethane is undesirable from the standpoint of groundwater contamination, the object of the present invention is to provide a new buffing cleaning agent that can replace 1.1.11-lichloroethane in order to suppress its use.

[Means for solving the problems] The present invention has been made to achieve the above-mentioned objects,
A buffing cleaning agent containing dichlorofluoroethane as an active ingredient is provided.

Dichlorofluoroethane, which is an active ingredient of the buffing cleaning agent of the present invention, is an excellent solvent that has advantages such as a moderate dissolving power. 1.2- for dichlorofluoroethane
Dichloro-1-fluoroethane (hereinafter referred to as R141)
, lI-dichloro-2-fluoroethane (hereinafter referred to as RI4
1a) and 1,1-dichloro-1-fluoroethane (hereinafter referred to as R141b) are known, and these can be used alone or as a mixture of two or more thereof.

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 kind selected from organic solvents such as hydrocarbons, alcohols, ketones, chlorinated hydrocarbons, or esters can be included. The content of these organic solvents in the buffing cleaning agent is 0 to 50% by weight, preferably 10 to 40% by weight,
More preferably, it is 20 to 30% by weight. If the mixture of dichlorofluoroethane and the organic solvent has an azeotropic composition, it is preferred to use the azeotropic composition.

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, 2-methylpentane, 2,2-dimethylbutane, 2.3-dimethylbutane, 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-trimethylpentane, 2.3.4-trimethylpentane, 2.2.3-trimethylpentane, isooctane, nonane, 2.2.5-trimethylhexane, decane, dodencane, 1-pentene, 2- Pentene, l-hexene, 1-octene, l-nonene, l-decene, cyclopentane, methylcyclopentane, cyclohexane, methylcyclohexane, ethylcyclohexane, bicyclohexane, cyclohexene, a-pinene,
It is selected from dibendene, decalin, tetralin, amicin, amylnaphthalene, etc. More preferred are n-pentane, n-hexane, n-hebutane and the like.

The alcohols are preferably linear or cyclic saturated or unsaturated alcohols having 1 to 17 carbon atoms, such as methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, 5ec-butyl alcohol, isobutyl alcohol, Ler L-butyl alcohol, pentyl alcohol%5ec-amyl alcohol, 1-ethyl-1-propanol, 2-methyl-
1-Butanol 5-isopentyl alcohol, LerL-
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-octanol, 2-ethyl-1-hexanol, 1
-nonanol, 3.5.5- trimethyl-1-hexanol, 1-decanol, 1-undecanol, 1-dodecanol, allyl alcohol, propargyl alcohol, benzyl alcohol, cyclohexanol, 1-methylcyclohexanol, 2-methylcyclohexanol , 3-methylcyclohexanol, 4-methylcyclohexanol, a-terpineol, a-nitinol,
It 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.

Ketones include R-CO-R', R-CO,R
-CO-R' -1 r-cll, 1 CO-R", R-GO-R', R-CD-R" (where R, R', R# are saturated carbon atoms of 1 to 9 or unsaturated hydrocarbon group) are preferred, including acetone, methyl ethyl ketone, 2-pentanone,
3-pentanone, 2-hexanone, methyl-n-butyl ketone, methyl butyl ketone, 2-heptanone, 4-heptanone, diisobutyl ketone, acetonylacetone,
Mesityl oxide, holon, methyl-〇-amylketone, ethyl butyl ketone, methylhexyl ketone, cyclohexanone, methylcyclohexanone, isophorone,
It is selected from 2.4-bentanedione, diacetone alcohol, acetophenone, fencheon, and the like.

More preferred are acetone, methyl ethyl ketone and the like.

The chlorinated hydrocarbons are preferably saturated or unsaturated chlorinated hydrocarbons having 1 to 2 carbon atoms, such as methylene chloride, carbon tetrachloride, 1.1-dichloroethane, 1.2-dichloroethane, 1. i trichloroethane, 1,1.
2-Trichloroethane, 1.1.1.2-tetrachloroethane, 1.1.2.2-tetrachloroethane, pentachloroethane, 1.1-dichloroethylene, 1.2-dichloroethylene, trichlor It is selected from ethylene, tetrachlorethylene, etc. More preferably methylene chloride.

1, 1, 1-trichloroethane, trichlorethylene, tetrachlorethylene, etc.

The esters are represented by the following general formula: ) 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 5isopentyl acetate, 3-methoxybutyl acetate, 5ec-hexyl acetate, 2 -Ethyl butyl acedate, 2-ethylhexyl acetate, cyclohexyl acetate, benzyl acetate, methyl propionate, ethyl propionate, butyl propionate, isopentyl propionate, methyl butyrate, ethyl butyrate, butyl butyrate, isopentyl butyrate, isobutyl isobutyrate, 2 -Hydroxy-2
-Ethyl methylpropionate, butyl stearate, pentyl stearate, methyl benzoate, ammonium,! 2. Ethyl frate, propyl benzoate, butyl benzoate, isopentyl benzoate, benzyl benzoate, ethyl abietate, benzyl abietate, bis-2-ethylhexyl adipate, γ-butyrolact, diethyl oxalate, dibutyl oxalate, oxalic acid Dibentyl, diethyl malonate, dimethyl maleate, diethyl maleate, dibutyl maleate, dibutyl tartrate, tributyl citrate, dibutyl sebacate, bis-2-ethylhexyl sebacate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, phthalate Some are selected from bis-2-ethylhexyl acid, 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 destruction. As the cleaning method, conventional methods such as hand wiping, infiltration, spraying, shaking, ultrasonic cleaning, and steam cleaning can be used.

[Examples] Examples 1 to 8 An abrasive removal test was conducted using the buffing cleaning agents shown in Table 1.

Buffing agent for watch frames (GS-1, Soken Kogyo■
After polishing with a buff polishing agent (manufactured by J.D.), the specimen was immersed in a buffing cleaning agent, subjected to ultrasonic waves for 3 minutes, and then taken out to observe the removal of the polishing agent. The results are shown in Table 1.

Table 1 () shows the mixture ratio [vehicle volume %] ○: Good removal △: Small amount remaining It has an excellent removal effect.

In addition, the conventionally used I, 1. Compared to I-trichloroethane, it is advantageous in that it has less adverse effect on the articles to be removed from the abrasives made of metals, plastics, elastomers, etc.

Agent (Patent Attorney) 1T1H・ノ・ Agent (Bu ``Science and Engineering'') 14 Tsukako Heifu

Claims (2)

[Claims] (1) A buffing cleaning agent containing dichlorofluoroethane as an active ingredient. (2) The buff according to claim 1, wherein the buffing cleaning agent contains at least one selected from hydrocarbons, alcohols, ketones, chlorinated hydrocarbons, or esters. Abrasive cleaning agent.