JPH09183133A - Cleaning agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly clean a remaining resin of a previous product in a molding machine by using a small quantity of cleaning agent composition so as to completely discharge it. SOLUTION: A thermoplastic resin, a mineral modified oil and/or a hydrocarbon synthetic oil and/or a synthetic plasticizer are mixed at the following rates: 0.05-20 pts.wt. of the mineral modified oil, 0.05-10 pts.wt. of the hydrocarbon synthetic oil, and 0.05-10 pts.wt. of the synthetic plasticizer based on 100 pts.wt. of the thermoplastic resin. Further, 0.05-8 pts.wt. of a lubricant and/or 0.05-20 pts.wt. of a surface active agent are mixed in the above components.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition for use in injection molding machines, extrusion molding machines, blow molding machines, etc. used for molding various plastics.

[0002]

2. Description of the Related Art In recent years, plastic molding has tended to become more and more diverse and in small quantities. Due to the multicolored nature to enhance the sense of quality and fashion, or the diversification of products depending on consumer needs, single molding The frequency of in-flight product type change (color change, resin change) is rapidly increasing. Conventionally, when changing the type, the resin to be molded next is used for cleaning in order to eliminate the influence of the preceding type. However, since the cleaning of the molding machine by this method is gradually replaced, a large amount of resin is required, and even if it is a long-time operation, the stains on the complicated structural parts in the molding machine cannot often be completely discharged. Further, there is a method of disassembling and cleaning by pulling out the screw for complete cleaning, but it requires a great deal of labor and time. Therefore, in order to solve these problems, various molding machine cleaning compositions have been recently developed.
For example, a composition obtained by adding 30 to 70% by weight of an inorganic filler and 1 to 30% by weight of a lubricant to a thermoplastic resin (Japanese Patent Publication No. 62-54647), a nonionic surfactant having a decomposition starting temperature of 200 ° C. or higher. 1 to 15 parts by weight, metal soap 5
A composition containing 30 parts by weight, 20 to 70 parts by weight of an inorganic filler, and 20 to 70 parts by weight of an olefin resin (Japanese Patent Publication No. 23598) is disclosed.

[0003]

As is clear from the above points, various methods are used for cleaning the inside of the molding machine. However, the conventional methods are loss of material, loss of labor, and long working time. Loss occurs. Commercially available molding machine cleaners have insufficient cleaning of complex structural parts such as the screw grooves, screw heads, nozzle tips, and check valves of the molding machine, and the cleaners themselves tend to remain in the molding machine. After all, it may be time consuming because it is difficult to remove the cleaning agent. This is because the cleaning component cannot completely dissociate the stagnant resin in the machine, so that a sufficient cleaning effect cannot be obtained and the resin cannot be discharged. In addition, the inorganic filler, which is one of the compositions, has the effect of improving the cleaning property, but since the screw is abraded or remains easily in the molding machine, the rear material (next molding material) is a transparent resin. In this case, there are defects such as transparency being easily impaired. On the other hand, since the additive has no heat resistance, it may decompose and generate an odor when used at high temperature, which may adversely affect the working environment. The problem to be solved by the present invention is to use a small amount of a detergent composition to allow the resin of the preceding type remaining in the molding machine to adhere (residual resin).
It is an object of the present invention to provide a cleaning agent for a molding processing machine, which can quickly wash and the like and completely discharge it.

[0004]

Means for Solving the Problems The present inventor has conducted extensive studies in order to solve the above-mentioned various conventional problems, and as a result, the following components have been found to be particularly useful as a cleaning agent for a molding machine. The present invention has been completed by discovering that it has an excellent cleaning effect. That is, the present invention relates to [1], (A) component, thermoplastic resin, (B) component, (1) mineral processing oil,
And / or (2) a hydrocarbon-based synthetic oil, and / or (3) a synthetic plasticizer, consisting of the above components (A) and (B), and (A) component 100 parts by weight (B) component ( 1) 0.05 to 20 parts by weight, and / or (2) 0.05 to 10 parts by weight of component (B), and / or (3) 0.05 to 10 parts by weight of component (B) are blended. A cleaning agent for a molding machine, characterized in that [2], in [1] above,
It is a detergent for a molding machine, which comprises (C) component, 0.05 to 8 parts by weight of a lubricant, and / or (D) component, a surfactant, and 0.05 to 20 parts by weight.

The component (A) and thermoplastic resin of the present invention include polyolefin resins such as polyethylene and polypropylene, polystyrene (PS), ABS resins, AS resins, styrene resins such as MS fat, PMMA (polymethacrylic acid). Examples thereof include transparent resins such as methyl) and PC (polycarbonate), PVC (vinyl chloride resin), polyamide resins, polyester resins, EPDM and EMMA (ethylene methyl methacrylate) having a low melting point, and biodegradable polymers. And the melt index (JI
S-K7210) is preferably as small as possible, and particularly, one having a value of 10 or less is optimal.

The detergent composition of the present invention comprises the component (A),
Component (B) component (1) mineral processing oil, and / or (2)
It is characterized by blending a hydrocarbon-based synthetic oil and / or (3) a synthetic plasticizer. The mineral processing oil (1) of the component (B) (hereinafter abbreviated as the component (1) of the component (B)) is a highly refined paraffin hydrocarbon which is a petroleum-based lubricating oil referred to as a process oil or an extender oil. , Naphthene hydrocarbons, aromatic hydrocarbons and the like.
The hydrocarbon synthetic oil (2) of the component (B) (hereinafter abbreviated as the component (2) of the component (B)) is polybutene, poly α-olefin, and a co-oligomer of ethylene and α-olefin. The component (3) synthetic plasticizer (hereinafter abbreviated as component (3)) of the component (B) is generally widely used as a plasticizer for PVC, and is a phthalate-based dimethyl phthalate, Diethyl phthalate, phthalic acid-
n-butyl, phthalic acid-n-octyl, phthalic acid-2-
Ethylhexyl, diisooctyl phthalate, diisotridecyl phthalate, diisodecyl phthalate, butylbenzyl phthalate, etc., aliphatic dibasic acid ester type di-2-ethylhexyl adipate, di-n-decyl adipate, diisodecyl adipate, Dibutyl sebacate,
Di-2-ethylhexyl sebacate and the like, and phosphoric acid ester-based tri-2-ethylhexyl phosphate, phosphoric acid 2
-Ethylhexyldiphenyl, tricresyl phosphate, etc., fatty acid ester-based butyl stearate, butyl oleate, acetylated methyl ricinoleate, etc.,
Epoxy-based epoxidized soybean oil, epoxidized tall oil fatty acid 2-ethylhexyl and the like, as well as chlorinated paraffin and acetylated tributyl citrate and the like.

In the present invention, the component (A), the thermoplastic resin 10
0 to 20 parts by weight of (B) component (1) 0.05 to 20
Parts by weight, preferably 0.05 to 8 parts by weight, more preferably 0.05 to 5 parts by weight, and / or component (2).
0.05 to 10 parts by weight, preferably 0.05 to 8 parts by weight, more preferably 0.1 to 5 parts by weight, and / or component (3) 0.05 to 10 parts by weight, preferably 0.
It is characterized in that 05 to 8 parts by weight, and more preferably 0.1 to 5 parts by weight of the components are blended.

In the present invention, the compounding amount of the component (B) (1) and / or the component (B) (2) and / or the component (B) (3) is less than 0.05 parts by weight. If so, the cleaning agent is not preferable because the polymer easily adheres to the die (the tip of the nozzle), the screw, the cylinder, and the like. When the amount of the component (1) as the component (B) is more than 20 parts by weight,
And / or (B) component (2), and / or (B)
If the compounding amount of component (3) is more than 10 parts by weight, the detergent slips in the cylinder, the screw idles, and it becomes difficult to discharge the preceding product remaining in the molding machine.
Workability is significantly reduced, which is not preferable.

Next, with respect to the above [1], the lubricant of the component (C) is 0.05 to 8 parts by weight, preferably 0.1 to 5 parts by weight, more preferably 0.1 to 3 parts by weight, And / or (D) component surfactant, 0.05 to 20 parts by weight, preferably 0.1 to 15 parts by weight, and more preferably 0.1 to 1
It is a detergent for a molding machine, which is characterized by containing 0 part by weight. The lubricant of component (C) of the present invention (hereinafter abbreviated as component (C)) preferably has particularly good heat resistance, and high molecular weight lubricants, fatty acid amide compounds having a softening point of 200 ° C. or higher, fatty acid ester compounds, Fatty acid-based, hydrocarbon-based lubricants, higher alcohols, polyglycols, fluorine compounds,
Silicone oil, magnesium hydroxy fatty acid, metal salt of higher fatty acid and the like can be mentioned. As the surfactant of component (D) (hereinafter abbreviated as component (D)), a fluorine-based surfactant, a silicone-based surfactant, a fat / oil / fatty acid / sulfate ester-based surfactant, an alkyl sulfate, an alkyl ether sulfate. , Alkyl sulfonate, petroleum sulfonate, polyoxyethylene alkyl ether, polyoxyethylene polyhydric alcohol ether, polyhydric alcohol ester, and the like.

In the present invention, if the amount of the component (C) is 0.05 parts by weight or less and / or the amount of the component (D) is 0.05 parts by weight or less, the detergent is likely to adhere to the surfaces of the cylinder, the die and the screw, which is preferable. Absent. When the amount of the component (C) is 8 parts by weight or more and / or the amount of the component (D) is 20 parts by weight or more, the cleaning agent slips in the cylinder, which makes it difficult to discharge the preceding product in the molding machine, resulting in poor workability. Not preferable. The essential components of the cleaning agent for a molding machine of the present invention are titanium oxide, talc, calcium carbonate, aluminum hydroxide, magnesium hydroxide, carbonic acid which are used as described above but are used in ordinary plastics in addition to those described above. Inorganic fillers such as magnesium and stabilizers may be added. The cleaning agent for a molding machine of the present invention can be produced by mixing the above components with a high-speed mixer, a tumbler, a ribbon blender or the like, or by melt-kneading with a single screw extruder, a twin screw extruder or the like. An internal mixer, a pressure kneader, a Banbury mixer, or the like may be used to prevent scattering. The shape thereof may be any of pellet, flake, wate, powder and the like.

[0011]

EXAMPLES Next, the present invention will be specifically described with reference to Examples and Comparative Examples. For the cleaning effect (cleanability, dischargeability) test, a mold clamping force of 60 tons was used. After finishing the molding operation of the preceding type (using 3 kg of coloring material), empty the inside of the machine, add a cleaning agent to clean the inside of the machine, find the amount of the cleaning composition used at that time, and wash The sex was evaluated. The detergent composition was discharged by the subsequent resin, the amount used was determined, and the dischargeability was evaluated.

Example 1 (A) ABS resin (melt index 1.0) 100
Parts by weight, component (B), diamond process oil P-
4 (trade name: Mitsubishi Petroleum Co., Ltd.) 10 parts by weight, (C) component, 3 parts by weight of ethylenebisstearylamide, (D) component, silicone surfactant (trade name: SILWET L
-77, Nippon Unicar Co., Ltd. 1 part by weight, the above components were mixed with a high-speed mixer, and then granulated into pellets with a single-screw extruder at 210 ° C. to obtain a detergent composition of the present invention. Flame retardant A
3 kg of black material of BS resin was molded at 220 ° C. by an injection molding machine, and after measuring and injection were repeatedly emptied, 270 g of the above cleaning composition was used to completely disappear black color, and the cleaning composition Washed by. The cleaning agent composition used for this cleaning was discharged with a transparent ABS resin in an amount of 150 g.

Example 2 (A) High-density polyethylene (melt index 0.0
5) 100 parts by weight, (B) component, 3 parts by weight of Fucor Process Oil P-400 (trade name: Fuji Kosan Co., Ltd.),
Component (C), 1 part by weight of Light Amide WH-255 (trade name: Kyoeisha Chemical Co., Ltd.), and the above components were added and mixed with a high-speed mixer to obtain a detergent composition. Then, 3 kg of black material of modified polyphenylene ether (m-PPE)
Was molded with an injection molding machine at 300 ° C., and after measurement and injection were repeatedly emptied, 290 g of the above-mentioned cleaning composition was used to completely eliminate the black color and the composition was cleaned with the cleaning composition. The cleaning agent composition used for this cleaning was discharged by PC at 250 g.

Example 3 (A) 100 parts by weight of MS resin (melt index 1.0), component (B), Huccol process oil P-40
A detergent composition was obtained in the same manner as in Example 1 by adding 0, 1 part by weight and the above components. Then, 3 kg of the red material of heat-resistant PMMA was molded by an injection molding machine at 260 ° C., and after the measurement and injection were repeatedly emptied, 360 g of the above detergent composition was used to completely disappear the red color. It was washed with the detergent composition. The cleaning agent composition used for this cleaning was discharged by PMMA at 110 g.

Example 4 (A) Polystyrene (melt index 0.5) 10
0 parts by weight, component (B) diamond process oil P-
4, 0.5 parts by weight of the component (C), oleic acid monoglyceride, 6 parts by weight of the component (D), 15 parts by weight of sodium alkanesulfonate, and the above components were added, and a detergent composition was prepared in the same manner as in Example 1. I got a thing. And then P blue material 3
Kg was molded at 230 ° C. by an injection molding machine, and after metering and injection were repeated to empty it, 260 parts of the above-mentioned cleaning composition was added.
It was washed with the detergent composition after completely disappearing the blue color using g. The cleaning composition used for this cleaning was P
It was discharged by S at 130 g.

Example 5 (A) High-density polyethylene (melt index 0.
3) 100 parts by weight, the component (B), the Fucole process oil P-400, 5 parts by weight, and the above components were added to obtain a detergent composition in the same manner as in Example 1. Then, 3 kg of high-density polyethylene (HDPE) black material is heated to 190 ° C.
After being molded by an injection molding machine and repeatedly emptied by measuring and injecting, 330 g of the above cleaning composition was used to completely disappear black color, and the cleaning composition was cleaned. The detergent composition used for this cleaning was discharged with 170 g of transparent PP.

Example 6 (A) ABS resin (melt index 0.5) 100
Parts by weight, component (B), diamond process oil P-
3 (trade name: Mitsubishi Oil Co., Ltd.), 15 parts by weight, component (D), nonylphenyl polyethylene glycol ester,
4 parts by weight of the above components were added and a detergent composition was obtained in the same manner as in Example 1. Then, the blue material 3Kg of ABS resin is molded by an injection molding machine at 230 ° C., measured,
After repeatedly injecting and emptying,
Using 0 g, the color disappeared completely and the product was washed with the detergent composition. The cleaning agent composition used for this cleaning was discharged with 140 g of transparent ABS resin.

Example 7 (A) Polypropylene (melt index 0.4) 1
00 parts by weight, component (B), Huccol process oil P
-300 (trade name: Fuji Kosan Co., Ltd.), 18 parts by weight,
Component (C), 0.5 part by weight of erucic acid amide, component (D), 8 parts by weight of octadecylbenzene sulfonate and the above components were added to obtain a detergent composition in the same manner as in Example 1. And then polypropylene (PP) blue material 3
220 g of the above cleaning agent composition after molding Kg at 230 ° C. by an injection molding machine and repeating measurement and injection to empty it.
Completely disappeared and washed with the detergent composition. The detergent composition used for this washing was discharged with 150 g of transparent PP.

Example 8 (A) ABS resin (melt index 1.0) 100
Parts by weight, component (B), hydrocarbon-based synthetic oil (trade name; Lucant, Mitsui Petrochemical Co., Ltd., hereinafter referred to as Lucant) 1 part by weight, component (C), ethylenebisstearylamide 3 parts by weight, ( Component D), 7 parts by weight of sodium alkane sulfonate, and the above components were added to obtain a detergent composition in the same manner as in Example 1. Then, 3 kg of black material of flame-retardant AS resin was molded by an injection molding machine at 220 ° C., and after measuring and injection were repeatedly emptied, the above cleaning composition 3
Using 10 g, the black color disappeared completely and the product was washed with the detergent composition. The cleaning agent composition used for this cleaning was discharged with a transparent ABS resin in an amount of 150 g.

Example 9 (A) High density polyethylene (melt index 0.0
5) 100 parts by weight, component (B), 3 parts by weight of Lucant,
Component (D), 2 parts by weight of a fluorosurfactant (trade name: Megafac F-110, Dainippon Ink and Chemicals, Inc.), and the above components are added and mixed with a high-speed mixer to obtain a detergent composition. It was Then, 3 kg of HDPE blue material is added to 19
After molding with an injection molding machine at 0 ° C. and repeating measurement and injection to empty it, 340 g of the above-mentioned cleaning composition was used to completely disappear the blue color and the composition was cleaned with the cleaning composition. The detergent composition used for this cleaning was discharged by 180 g of transparent PP.

Example 10 (A) ABS resin (melt index 0.5) 100
Parts by weight, 5 parts by weight of component (B) Lucant, component (C)
Zinc stearate, 6 parts by weight, component (D), polyoxyethylene-polyoxypropylene glycol 3 parts by weight,
The above components were added to obtain a detergent composition in the same manner as in Example 1. Then, 2 kg of ABS resin black material 3 kg
After molding with an injection molding machine at 30 ° C., after repeating measurement and injection and emptying, 360 g of the above-mentioned cleaning composition was used to completely disappear the black color and the composition was cleaned with the cleaning composition.
The detergent composition used for this cleaning was
It was discharged at 40 g.

Example 11 (A) Polypropylene (melt index 0.4) 1
00 parts by weight, component (B), Lucant 7 parts by weight, (C)
Component, 1 part by weight of erucic acid amide, component (D), 1 part by weight of silicone surfactant (trade name: SILWETL722, Nippon Unicar Co., Ltd.), the above components were added, and Example 1 was added.
A detergent composition was obtained in the same manner as in (1). Then, 3 kg of polypropylene black material was molded by an injection molding machine at 230 ° C., and after metering and injection were repeatedly emptied, 240 g of the above cleaning composition was used to completely disappear the black color and the cleaning agent. Washed with the composition. The cleaning composition used for this cleaning was discharged as 160 g of transparent PP.

Example 12 (A) ABS resin (melt index 0.7) 100
Parts by weight, component (B), tricresyl phosphate 3 parts by weight,
Component (C), 1 part by weight of ethylenebisstearylamide,
The above components were added and mixed with a high speed mixer to obtain a detergent composition. Then, 220 kg of 3 Kg flame-retardant ABS black material
After molding with an injection molding machine at 0 ° C. and repeating emptying by repeating weighing and injection, 320 g of the above-mentioned cleaning composition was used to completely eliminate the black color and the composition was cleaned with the cleaning composition. The cleaning agent composition used for this cleaning was discharged with 200 g of transparent ABS resin.

Example 13 (A) High-density polyethylene (melt index 0.
7) 100 parts by weight, (B) component, 1 part by weight of diisodecyl phthalate, (C) component, 3 parts by weight of EM-644 (trade name: Eishin Kasei Co., Ltd.), (D) component, nonylphenyl polyethylene glycol ether 5 parts by weight of the above components were added to obtain a detergent composition in the same manner as in Example 1. And then 3kg flame retardant PP (flame retardant polypropylene) blue material
Was subjected to molding by an injection molding machine at 210 ° C., measurement and injection were emptied repeatedly, and then 260 g of the above-mentioned cleaning composition was used to completely disappear the blue color and the composition was washed with the cleaning composition. The cleaning composition used for this cleaning was made of transparent PP.
Was discharged at 210 g.

Example 14 (A) ABS resin (melt index 0, 5) 100
Parts by weight, component (B), di-2 ethylhexyl phthalate 7
Parts by weight, component (D), fluorosurfactant (trade name: Megafac F-178RM, Dainippon Ink and Chemicals, Inc.) 1 part by weight, the above components were added, and the same procedure as in Example 1 was performed. A cleaning composition was obtained. Then, 3 kg of ABS resin blue material is molded by an injection molding machine at 230 ° C.,
After the measurement and injection were repeatedly emptied, 320 g of the above cleaning composition was used to completely disappear the blue color, and the cleaning composition was washed. The cleaning agent composition used for this cleaning was discharged with 180 g of transparent ABS resin.

Example 15 (A) Polypropylene (melt index 0.4)
Component (B), di-2-ethylhexyl adipate 5 parts by weight, component (C), erucic acid amide 5 parts by weight, component (D), polyoxyethylene-polyoxypropylene glycol 3 parts by weight, and the above components are added. A cleaning composition was obtained in the same manner as in Example 1. Then, 3 kg of PP (polypropylene) black material was molded by an injection molding machine at 230 ° C., and after metering and injection were repeatedly emptied, 250 g of the above cleaning composition was used to completely disappear the black color. It was cleaned with the cleaning composition. The cleaning agent composition used for this cleaning was discharged with 200 g of transparent ABS.

Comparative Example 1 (A) High density polyethylene (melt index 0.0
5) 100 parts by weight, component (C), magnesium stearate, 2 parts by weight, component (D), 15 parts by weight of sodium alkanesulfonate, the above components were added, and a detergent composition was prepared in the same manner as in Example 1. Got Next, 3 Kg of the black material of modified polyphenylene ether was molded by an injection molding machine at 300 ° C., and after measurement and injection were repeatedly emptied, a cleaning test was performed using the above cleaning composition. Even if 1000 g of the detergent composition was used, it could not be washed.

Comparative Example 2 (A) ABS resin (melt index 1.0) 100
Parts by weight, component (C), ethylenebisstearylamide,
3 parts by weight, component (D), nonylphenyl polyethylene glycol ether, 1 part by weight, and the above components were added to obtain a detergent composition in the same manner as in Example 1. Next, flame retardant AB
3 kg of a black material of S resin was molded by an injection molding machine at 220 ° C., and after measuring and injection were repeatedly emptied, a cleaning test was performed using the above cleaning composition. Using 950 g of the detergent composition, the black color disappeared and the composition was washed. The cleaning agent composition used for this cleaning was 88% with transparent ABS.
It was discharged at 0 g.

Comparative Example 3 (A) Polypropylene (melt index 0.4) 1
00 parts by weight, component (C), behenic acid stearate, 1
Parts by weight, component (D), polyoxyethylene-polyoxypropylene glycol, 8 parts by weight, the above components are added,
A cleaning composition was obtained in the same manner as in Example 1. Next, 3 kg of black material of flame-retardant PP was molded by an injection molding machine at 220 ° C., and after measuring and injection were repeatedly emptied, a cleaning test was conducted using the above cleaning composition. Using 870 g of the detergent composition, the black color disappeared and the composition was washed. The cleaning agent composition used for this cleaning was 750
discharged in g.

Comparative Example 4 (A) High density polyethylene (melt index 0,
3) 100 parts by weight, component (C), zinc stearate, 6
Parts by weight, component (D), polyoxyethylene cetyl ether, 5 parts by weight, and calcium carbonate 30 parts by weight were added to the above components, and a detergent composition was obtained in the same manner as in Example 1. Next, black material of modified polyphenylene ether 3K
g was molded by an injection molding machine at 300 ° C., and after measurement and injection were repeated to empty it, a cleaning test was conducted using the above cleaning composition. Using 970 g of the cleaning composition, the black color disappeared and the composition was washed. The cleaning composition used for this cleaning could not be discharged even with 1000 g of PC.

Comparative Example 5 (A) ABS resin (melt index 0.7) 100
Parts by weight, component (C), methylenebisstearylamide,
8 parts by weight and 40 parts by weight of talc were added to the above components to obtain a detergent composition in the same manner as in Example 1. Next, a blue colorant of ABS resin was molded at 230 ° C. at 3 Kg by an injection molding machine, and after measuring and injection were repeatedly emptied, a cleaning test was conducted using the above cleaning composition. Using 900 g of the cleaning composition, the blue color disappeared and the composition was washed. The cleaning composition used for this cleaning was 10% of transparent ABS resin.
It could not be discharged even with 00g.

[0032]

The detergent composition of the present invention is characterized by blending a mineral processing oil and / or a hydrocarbon synthetic oil and / or a synthetic plasticizer with a thermoplastic resin. In other words, by forming a very thin lubricating layer at the interface between the polymer of the preceding type and the metal, and by dissociating the resin adhering to the metal surface together with the improvement of the fluidity, stagnation in the processing machine is prevented and quick cleaning is performed. It is discharged and a remarkable cleaning effect is produced. Furthermore, by blending the lubricant of the component (C) and / or the surfactant of the component (D), it becomes easy to penetrate even into a complicated structure portion, and the cleaning performance is dramatically improved. By using a small amount of the detergent composition of the present invention, the cleaning is extremely smoothly performed in the color change and the resin change of the preceding product, and moreover, it is completed in a short time. Therefore, the working time is shortened and the loss of material (resin) and labor is greatly reduced, which greatly contributes to reduction of industrial waste and improvement of productivity.

Claims (2)

[Claims] 1. A component (A), a thermoplastic resin, a component (B),
(1) Mineral-based processing oil, and / or (2) Hydrocarbon-based synthetic oil, and / or (3) Synthetic plasticizer, above, (A),
(B) component (1) 0.05 to 20 parts by weight, and / or (B) component (2) 0.05 to 10 parts by weight, based on 100 parts by weight of the component (A). And / or (3) 0.05 to 10 parts by weight of the component (B) is blended, and a detergent for a molding machine. 2. The method according to claim 1, wherein the component (C) and the lubricant are 0.05 to
8 parts by weight, and / or component (D), surfactant, 0.
A cleaning agent for a molding machine, which is blended in an amount of 05 to 20 parts by weight.