JPH07228884A - Mold release agent composition - Google Patents

Abstract

PURPOSE:To obtain the subject composition capable of readily providing a foamed molding of polyurethane having excellent appearance due to exhibition of excellent mold release characteristics to a polyurethane molding and prevention of roughness of cell, comprising a specific composition. CONSTITUTION:The objective composition comprises (A) 1-70wt.% of an amino group-containing organopolysiloxane (e.g. a compound of formula I), (B) 0.1-70wt.% of an organopolysiloxane modified with a polyoxyalkylene (e.g. a compound of formula II), (C) 0.1-30wt.% of an emulsifying agent (e.g. polyoxyethylene higher alcohol selected from ionic (nonionic) emulsifying agents except the component B and (D) the rest of water. A straight-chain amino group-containing organopolysiloxane having 1,000-50,000 amine equivalent and 50-10,000cS viscosity is preferable as the component A. An organopolysiloxane modified with a polyoxyalkylene having 50-5,000cS viscosity and 3-15 HLB is preferable as the component B and an emulsifying agent having 7-15 HLB is preferable as the component C.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a mold release agent composition, particularly a mold release agent composition capable of improving the mold release of a polyurethane molded article and preventing cell roughening of the molded article by the action of a polyether-modified silicone. It is about.

[0002]

2. Description of the Related Art When molding a molded product made of a synthetic resin or a resin such as an acrylic resin, an epoxy resin, a urethane resin, a vinyl chloride resin, or a vinyl acetate resin, the molded product can be easily released from the mold frame. In order to achieve this, a mold release agent is applied in this mold, and as a mold release agent for this purpose, wax, soap and / or oil as a main component is often used. There is. However, since polyurethane has a strong adhesive force to other materials, it is widely used for adhesives, which makes it particularly difficult to release the mold during molding. It has become a thing.

A polyethylene wax mold release agent has been proposed for this mold release (see Japanese Patent Publication No. 56-5844), but this product has poor mold release performance, especially when continuous molding is performed. Disadvantages are that the release agent is deposited in the mold, the release agent powder is scattered to contaminate the surroundings, and the obtained molded product loses gloss. Further, regarding this, a release agent composed of aminosiloxane and dimethylpolysiloxane (see Belgian Patent No. 814909), α-methylstyrene-modified dimethylpolysiloxane and MQ resin (resin composed of triorganosiloxane unit and SiO ₂₎ ) And a silicone-based release agent
52-32780 gazette) is also proposed, but all of these mold release agents have a heavy mold release property, and since the mold release agent does not wet the mold uniformly, part of the urethane resin is It has the disadvantage that it remains and peels off heavily.

Regarding this, a release agent composed of perfluoroalkyl phosphate ester and silicone is known (see Japanese Patent Publication No. 53-23270 and Japanese Patent Publication No. 53-23271), but this is still known. A composition comprising a perfluoroalkyl phosphoric acid ester and a silicone varnish has also been proposed because it does not have a sufficiently satisfactory peeling performance (see JP-A-53-133490). It has the drawback that it is difficult to dissolve and peels off heavily.

[0005]

Therefore, a mold release agent containing an MQ resin, an amino group-containing siloxane, and a polyfluoroalkyl group-containing polymer has been proposed as an excellent release property and a good wetting property. (See Japanese Patent Publication No. 59-32514), but since all of these are used in the form of being dissolved in an aromatic hydrocarbon solvent or a chlorinated hydrocarbon solvent, there are problems with their flammability and toxicity. However, this also had the drawback of impairing the uniformity of the polyurethane foam cells. Further, in recent years, an aqueous base release agent, for example, a release agent containing a high molecular hydrocarbon as a release component has been proposed, which includes an aqueous dispersion of polyethylene wax and an aqueous emulsion of paraffins. Alternatively, an aqueous emulsion of unsaturated low polymer or polymer hydrocarbon is exemplified, but these do not have sufficient peeling performance.

On the other hand, the releasing agent is an aqueous releasing agent comprising a releasing agent such as a hydrocarbon polymer, silicone or wax, an emulsifier and an ethoxylated alcohol (see JP-A-4-298306). An aqueous release agent containing polyvinyl alcohol as an active substance and a foaming stabilizer added thereto (see Japanese Patent Application Laid-Open No. 4-298307) has been proposed, but these improve the surface properties of a polyurethane molded article to some extent. Although it can be maintained, it does not sufficiently satisfy the peeling performance.

[0007]

SUMMARY OF THE INVENTION The present invention relates to an aqueous release agent composition which solves the above disadvantages, drawbacks and problems, and it comprises (A) an amino group-containing organopolysiloxane 1-70. %, (B) polyoxyalkylene-modified organopolysiloxane 0.1 to 70% by weight, and (C) one or more selected from nonionic emulsifiers and ionic emulsifiers other than polyoxyalkylene-modified organopolysiloxane. The main component is an emulsion composition consisting of 0.1 to 30% by weight of an emulsifier and (D) the balance of water, and the weight ratio of A) component and B) component is (A) / (B) = 1 / 0.1.
It is characterized by being 1/1.

That is, as a result of various investigations by the present inventors to develop a mold release agent composition to be used particularly in the production of polyurethane molded products, it is assumed that the mold release agent contains an amino group-containing organopolysiloxane. When it is used as a main emulsifier, it shows the appearance of a polyurethane molded product because it has excellent releasability to the body and when it contains polyoxyalkylene-modified organopolysiloxane, it has a foam-stabilizing action on urethane. It has been found that a good molded product can be obtained without roughening, and a nonionic emulsifier or an ionic emulsifier is added to this as a wettability improver to obtain an emulsified composition. Good separation,
The present invention has been completed by confirming that urethane cell roughening can be prevented. This will be described in more detail below.

[0009]

The present invention relates to a release agent composition, which comprises (A) amino group-containing organopolysiloxane 1-70.
%, (B) polyoxyalkylene-modified organopolysiloxane 0.1 to 70% by weight, and (C) one or more selected from nonionic emulsifiers and ionic emulsifiers other than polyoxyalkylene-modified organopolysiloxane. The main component is an emulsion composition consisting of 0.1 to 30% by weight of an emulsifier and (D) the balance of water, and the weight ratio of the (A) component to the (B) component is (A) / (B) = 1 / 0.1 to 1 The purpose of the present invention is to provide a release agent composition of / 1, which exhibits excellent mold release properties with respect to a polyurethane molded article, and is a good molded article without deteriorating the appearance of the polyurethane molded article. It has the advantage of giving

The amino group-containing organopolysiloxane as the component (A) that constitutes the release agent composition of the present invention has the general formula (I) R ¹ _a R ² _b R ³ _c SiO _{(4-abc) / 2} . (I). This R ¹ is the formula -R ⁴ (NR ⁵ CH ₂ CH ₂ ) NR
⁶ R ⁷ , R ⁴ is a divalent hydrocarbon group having 1 to 4 carbon atoms, such as a methylene group, an ethylene group, a propylene group and a butylene group, R ⁵ , R ⁶ and R ⁷ are hydrogen atoms or Alkyl groups such as methyl, ethyl, propyl and butyl, alkenyl groups such as vinyl and allyl, or some or all of the hydrogen atoms bonded to the carbon atoms of these groups are halogen atoms, cyano groups. Same or different C1-4 unsubstituted or substituted monovalent selected from chloromethyl group, 3-chloropropyl group, 3,3,3-trifluoropropyl group, cyanoethyl group etc. a hydrocarbon group, those preferably more than 90 mol% is a hydrogen atom, R ² is a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, heptyl group, octyl group, nonyl group, decyl , Alkyl groups such as dodecyl group, tetradecyl group, hexadecyl group, octadecyl group, alkenyl groups such as vinyl group and allyl group, aryl groups such as phenyl group and tolyl group, cycloalkyl groups such as cyclohexyl group, or these groups Some or all of the hydrogen atoms bonded to carbon atoms are halogen atoms,
A chloromethyl group substituted with a cyano group, a 3-chloropropyl group, a 3,3,3-trifluoropropyl group, a cyanoethyl group or the like, which is the same or different and has 1 to 18 carbon atoms and is unsubstituted or substituted 1 A valent hydrocarbon group, preferably 90 mol% or more of which is a methyl group, R ³ is of the formula O
An alkoxy group represented by R ^8, R ⁸ is a methyl group, an ethyl group, propyl group, butyl group, pentyl group, a monovalent hydrocarbon group having 1 to 6 carbon atoms exemplified by hexyl groups, particularly methyl A preferred group, a, b and c are each 0.00
01 ≦ a ≦ 1, 1.8 ≦ b ≦ 2.2, 0 ≦ c ≦ 0.1, 1.8 <a
+ B + c <2.3.

The amino group-containing organopolysiloxane is preferably linear, and may be branched, but when this has an amine equivalent of less than 500, the obtained aqueous composition is stable. It becomes poor and 10
If it is greater than 0,000, sufficient releasability cannot be obtained, so this is in the range of 500 to 100,000, preferably
It is in the range of 1,000 to 50,000. Further, if the viscosity of this is less than 10 cS, the stability of the emulsified composition decreases,
The release property of the polyurethane molded product also decreases, and if it is 100,000 cS or more, emulsification becomes difficult, so this viscosity is 10-100,00.
It is required to be in the range of 0 cS, but the preferable range is 50 to 10,000 cS.

If the amount of this compound is less than 1% by weight based on the total system, the stability of the aqueous composition becomes poor,
When it exceeds 70% by weight, the viscosity of the emulsified composition becomes high and it becomes difficult to handle and uniformly apply it to the mold.
The range is 70% by weight, and the preferable range is 20 to 30.
%, And the following are exemplified.

[Chemical 1] (P, q, r, s, t, u, v, w are integers)

Next, the polyoxyalkylene-modified organopolysiloxane as the component (B) constituting the release agent composition of the present invention is the above-mentioned amino group-containing organopolysiloxane as the component (A) of the component (D). It is added as an emulsifier for emulsifying and dispersing in water, which also has the function of preventing the nonuniformity of the foamed cells of the polyurethane molded product, but this polyoxyalkylene-modified organopolysiloxane has the following average It is supposed to be represented by the composition formula R ⁹ _d R ¹⁰ _e SiO _{(4-de) / 2} . R ^{9 in} this formula is the formula -R ¹¹ -O- (R
¹² O) _f -R ¹³ is a polyoxyalkylene group represented by R ¹¹
Is a divalent hydrocarbon group having 1 to 4 carbon atoms such as methylene group, ethylene group, propylene group, butylene group, R ¹² is ethylene group or propylene group, R ¹³ is hydrogen atom or methyl group, ethyl group, propyl group, A monovalent organic group selected from an alkyl group having 1 to 8 carbon atoms such as a butyl group, a hexyl group and an octyl group, an acetyl group and an isocyanic acid group,
f is 3 ≦ f ≦ 100, and R ¹⁰ is the same as R ² described above, which is one or more and is unsubstituted or substituted 1 to 18 carbon atoms.
It is a valent hydrocarbon group, and d and e are each 0.01 ≦ d ≦
1, 1.2 ≦ e ≦ 2.2 and 1.8 <d + e <2.3.

The polyoxyalkylene-modified organopolysiloxane is preferably liquid at room temperature, but if the viscosity is lower than 10 cS, the obtained emulsified composition is easy to separate and the stability is low. 100,000cS
If it is higher, emulsification becomes difficult, so the viscosity is 10-100,000c.
The preferred range is S.
50 ~ 5,000cS, but this one has HLB of 1 ~ 20,
It is preferably 3 to 15.

As this polyoxyalkylene-modified organopolysiloxane, a commercially available polyether-modified silicone may be used, which is prepared according to a conventionally known method, for example, an organopolysiloxane containing ≡SiH groups. It can be easily obtained by adding a polyoxyalkylene compound having an unsaturated group such as a vinyl group or an allyl group at the chain end in the presence of a platinum catalyst. The polyoxyalkylene-modified organopolysiloxane may contain two or more kinds of polyoxyalkylene groups having different ethyleneoxy group / propyleneoxy group molar ratios in the same molecule, or may have two or more different structures. It may be a mixture of one or more polyoxyalkylene-modified organopolysiloxanes.

If the amount of the polyoxyalkylene-modified organopolysiloxane as the component (B) is less than 0.1% by weight based on the total amount of the system, the foamed cells will have poor uniformity and the emulsion composition obtained will be stable. If the amount is more than 70% by weight, the release performance of the release agent composition will be deteriorated. Therefore, it is required to be in the range of 0.1 to 70% by weight, but the preferable range is 1 It is preferable to set it in the range of 50 to 50% by weight, more preferably 5 to 20% by weight. In addition, if the mixing ratio of the above-mentioned component (A) and this component (B) is larger than (A) / (B) = 1 / 0.1 in weight ratio, the foam cells become non-uniform, and from 1/1 If it is small, the peeling performance will decrease, so (A) / (B) = 1 / 0.1
It is required to be in the range of up to 1/1.

The emulsifier as the component (C) which constitutes the release agent composition of the present invention is added for the purpose of improving the wettability of the release agent composition with respect to the surface of the molding frame. This is one or more emulsifiers selected from nonionic emulsifiers and ionic emulsifiers other than the polyoxyalkylene-modified organopolysiloxane as the component (B).

Examples of the nonionic emulsifier include polyoxyethylene higher alcohol ether, polyoxyethylene alkylphenyl ether, sorbitan monoalkylate, sorbitanial chelate, polyoxyethylene sorbitan monoalkylate, polyoxyethylene sorbitanial chelate, and polyoxyethylene sorbitanial chelate. Examples thereof include oxyethylene sorbitol tetraalkylate and glycerol monoalkylate, which can be used alone or in combination of two or more kinds. In addition to these general nonionic emulsifiers, fluorine-based compounds can be used. Although an emulsifier or a silicone-based nonionic emulsifier can also be used,
The nonionic emulsifier has an HLB in the range of 1.5 to 20, preferably 7.0 to 15.0.

As the ionic emulsifier, there are anionic, cationic and zwitterionic ones. As the anionic emulsifier, sodium lauryl sulfate,
Ammonium lauryl sulfate, sodium dodecyl sulfate,
Sodium dodecylbenzene sulfonate, sodium dialkyl sulfosuccinate, potassium alkyl phosphate, sodium polyoxyethylene lauryl ether sulfate, sodium polyoxyethylene alkylphenyl ether sulfate, sodium polyoxyethylene tridecyl ether sulfate, etc. Examples thereof include trimethylammonium chloride, stearyltrimethylammonium chloride, lauryltrimethylammonium chloride, stearylamine hydrochloride, coconutamine hydrochloride, coconutamine acetate, stearylamine acetate, and alkylbenzenedimethylammonium chloride.

As the zwitterionic emulsifier, N-
Acylamidopropyl-N, N-dimethylammoniobetaines, N-acylamidopropyl-N, N'-dimethyl-N'-β-hydroxypropylammoniobetaines and the like are exemplified, but among these, particularly Is preferably a nonionic emulsifier. If the amount of this emulsifier is less than 0.1% by weight based on the total system, the effect of improving wettability will be poor, and if it is more than 30% by weight, the viscosity of the emulsified composition will be high and the workability will be impaired, and the release performance will decrease. Therefore, 0.1 to 30% by weight is required, but the preferable range is 1 to 20% by weight, and more preferably 5 to 10% by weight.
It may be weight%.

The release agent composition of the present invention is prepared by mixing a predetermined amount of the component (A) amino group-containing organopolysiloxane and the component (B) polyoxyalkylene-modified organopolysiloxane in a mixer such as a homomixer. It can be obtained by adding water little by little while stirring at high speed to prepare an O / W type emulsion composition, and then adding an emulsifier as the component (C). The component (C) may be blended together with the components (A) and (B) from the beginning, but as described above for improving the wettability, the component (A),
It is preferable to prepare an emulsified composition from the component (B) and add the component (C) thereto.

With respect to the release agent composition of the present invention, it is not possible to add an acid component such as hydrochloric acid, acetic acid, propionic acid or malonic acid to the emulsion composition for the purpose of improving the storage stability. The amount of this acid is optional and may be in the range of 0.1 to 1 equivalent with respect to the amino group in the component (A), but the wax may be added to the wax within a range not significantly deviating from the scope of the present invention. The addition of materials, antistatic agents, preservatives and rust inhibitors is optional.

The release agent composition of the present invention produced in this manner is applied to the surface of a molding frame for producing a polyurethane molded product, and the composition has an excellent release property for a polyurethane molded product. In addition, since it has a foam-stabilizing action on urethane, it is possible to obtain a polyurethane molded article having a good cell state and a good appearance. The composition may be applied to the surface of the molding frame as it is, or may be diluted with water and then applied.

[0024]

EXAMPLES Examples and comparative examples of the present invention will be given below.
The viscosity in the examples shows the measured value at 25 ° C., and the peeling force and the foamed cell diameter (uniformity) in the examples show the results by the following methods.

(Peeling power) A release agent was spray-coated on an aluminum plate and air-dried at room temperature for 30 minutes or more, and then a urethane foam stock solution having the following composition was mixed, and 3 g of the solution was dropped on the aluminum plate at 70 ° C. Foam for 5 minutes, cure
After curing, the peeling force when the urethane foam was pulled up in the vertical direction at a speed of 0.3 m / min was measured by an autograph. <Urethane foam stock solution composition> Polyester polyol 68% by weight Toluene diisocyanate 28% by weight N-Ethylmorpholine 1% by weight Foam stabilizer F-258 [Shin-Etsu Chemical Co., Ltd. product name] 0.7% by weight Water 2% by weight

(Foam Cell Diameter) 2 g of a mold release agent was added to 200 g of the above urethane foam-containing liquid, and the mixture was treated with a homodisper to obtain 2.
Mix and stir at 000 rpm for 20 seconds at room temperature to foam and mold, then heat at 100 ° C for 5 minutes to cure and create urethane foam, then cut this urethane foam with a cutter and measure the average cell diameter inside. did.

Example 1 Formula with amine equivalent of 22,500 and viscosity of 60 cS

[Chemical 2] Amino group-containing organopolysiloxane represented by (1)
300g, formula with HLB = 7 and viscosity of 1,600cS

[Chemical 3] 150 g of the polyoxyalkylene-modified organopolysiloxane (1) shown in (3) was weighed in a polyethylene container and mixed by high speed stirring with a homomixer for about 5 minutes.

Then, 450 g of deionized water was gradually added dropwise to this at low speed with stirring, and when phase inversion and thickening were interrupted, the stirring speed was increased to 2,000 rpm and high speed stirring was performed for about 15 minutes, and then the rest. Water was added to dilute, and 100 g of polyoxyethylene octyl phenyl ether (HLB = 13.6) as a nonionic emulsifier (1) was further added and mixed by low-speed stirring to prepare a white emulsion composition. Shows excellent stability, and no separation was observed even after standing for 3 months. Next, this was diluted 5 times with deionized water, and a peeling test and a cell state observation were carried out, and the results shown in Table 1 described later were obtained.

Example 2 200 g of the amino group-containing organopolysiloxane (1) used in Example 1 and 60 g of polyoxyalkylene-modified organopolysiloxane (1) were mixed and deionized in the same manner as in Example 1. 690 g of water was gradually added to form an emulsion, and then 50 g of the same nonionic emulsifier (1) as in Example 1 was mixed to prepare an emulsified composition, which has excellent stability. there were. Then, this was diluted 3 times with deionized water, and a peeling test and a cell state observation of this were conducted in the same manner as in Example 1, and the results shown in Table 1 below were obtained. Was given.

Example 3 The polyoxyalkylene-modified organopolysiloxane (1) used in Example 2 was added in an amount of 160 g, and deionized water was added.
An emulsion composition was prepared by treating in the same manner as in Example 2 except that the amount was changed to 590 g, which was excellent in stability. Then, this was diluted three times with deionized water, and the peeling test and the cell state were observed in the same manner as in Example 1, and the results shown in Table 1 below were obtained.

Example 4 The amino group-containing organopolysiloxane (1) used in Example 1 was treated with an amine equivalent of 7,500 and a viscosity of 250 cS.

[Chemical 4] An amino group-containing organopolysiloxane represented by (2)
An emulsion composition was prepared in the same manner as in Example 1 except that the stability was excellent. Then, this was diluted 5 times with deionized water, and a peeling test and a cell state observation of the same were carried out in the same manner as in Example 1, and the results shown in Table 1 below were obtained. It was

Example 5 The amino group-containing organopolysiloxane (1) used in Example 1 has an amine equivalent of 1,900 and a viscosity of 750 cS.

[Chemical 5] An amino group-containing organopolysiloxane represented by (3)
An emulsion composition was prepared in the same manner as in Example 1 except that the stability was excellent. Then, this was diluted 5 times with deionized water, and a peeling test and a cell state observation of the same were carried out in the same manner as in Example 1, and the results shown in Table 1 below were obtained. It was

Example 6 The polyoxyalkylene-modified organopolysiloxane (1) used in Example 1 was prepared according to the formula of HLB = 15 and viscosity 100 cS.

[Chemical 6] The emulsion composition was prepared in the same manner as in Example 1 except that the polyoxyalkylene-modified organopolysiloxane (2) was used, and the emulsion composition was excellent in stability. Then, this was diluted 5 times with deionized water, and a peeling test and a cell state observation of the same were carried out in the same manner as in Example 1, and the results shown in Table 1 below were obtained. It was

Comparative Example 1 The amount of the polyoxyalkylene-modified organopolysiloxane (1) used in Example 1 was 15 g, and the amount of deionized water was
An emulsion composition was prepared in the same manner as in Example 1 except that the amount was changed to 917 g. Then, this was diluted 5 times with deionized water, and the peeling test and observation of the cell state of this were conducted in the same manner as in Examples, and the results shown in Table 1 below were obtained. . The emulsion composition had poor stability, and two-layer separation occurred only after standing for 3 days.

Comparative Example 2 The amount of the polyoxyalkylene-modified organopolysiloxane (1) used in Example 1 was 400 g, and the amount of deionized water was
An emulsion composition was prepared in the same manner as in Example 1 except that the amount was changed to 840 g. Then, this is deionized water 5
Diluted twice and subjected to peeling test and cell state observation in the same manner as in Example 1,
The results shown in Table 1 below were obtained.

Comparative Example 3 The polyoxyalkylene-modified organopolysiloxane (1) used in Example 1 was used as the nonionic emulsifier (2) to form polyoxyethylene tridecyl ether (EO addition mol = 10 mol, HLB = 13.7). An emulsion composition was prepared in the same manner as in Example 1 except that It was then diluted 5 times with deionized water, for which Example 1
When the peeling test and the cell state of this product were conducted by the same method as described above, the results shown in Table 1 below were obtained.

Comparative Example 4 An emulsion composition (10) was prepared in the same manner as in Example 1 except that the amino group-containing organopolysiloxane used in Example 1 was changed to dimethylpolysiloxane having a viscosity of 60 cS. Then, this was diluted 5 times with deionized water, and the peeling test and observation of the cell state of this were conducted by the same method as in Example 1, and the results as shown in the following Table 1 were obtained. It was

[0038]

[Table 1]

[0039]

INDUSTRIAL APPLICABILITY The present invention relates to a release agent composition, which comprises 1 to 70% by weight of (A) an amino group-containing organopolysiloxane and (B) a polyoxyalkylene-modified organopolysiloxane of 0.1% as described above. ~ 70% by weight,
(C) 0.1 to 30% by weight of one or more emulsifiers selected from nonionic emulsifiers and ionic emulsifiers,
A main component is an emulsion composition comprising (D) the balance of water, and the weight ratio of the components (A) and (B) is (A) /
(B) = 1 / 0.1 to 1/1, which shows excellent mold releasability with respect to a polyurethane molded product and does not hinder foaming of polyurethane. , Because it prevents the cell from becoming rough and keeps the cell in good condition, applying this to a mold for producing a polyurethane molded product gives the advantage that a polyurethane foam molded product with a good appearance can be easily obtained. .

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location C10M 129: 16) B29K 75:00 C10N 20:02 40:36 (72) Inventor Morisan Nakazato Gunma No. 1 Hitomi, Oita, Matsuida-cho, Usui-gun, Japan 10 Shin-Etsu Chemical Co., Ltd. Silicone Electronic Materials Research Laboratory

Claims (4)

[Claims] 1. (A) Amino group-containing organopolysiloxane 1 to 70% by weight, (B) Polyoxyalkylene-modified organopolysiloxane 0.1 to 70% by weight, (C) Nonionic other than polyoxyalkylene-modified organopolysiloxane Emulsifying composition consisting of 0.1 to 30% by weight of one or more emulsifiers selected from organic emulsifying agents and ionic emulsifiers and (D) water balance, as the main component, and the (A) component and (B) component The weight ratio with (A) / (B) = 1 / 0.1 to 1
The release agent composition is characterized in that. 2. The component (A) has the general formula (I) R ¹ _a R ² _b R ³ _c SiO _{(4-abc) / 2} (I) [wherein R ¹ is -R ⁴ (NR ⁵ CH ₂ CH ₂ ) _m NR ⁶ R ⁷ (R ⁴ has 1 to 4 carbon atoms
Is a divalent hydrocarbon group, R ⁵ , R ⁶ and R ⁷ are each a hydrogen atom or a monovalent hydrocarbon group having 1 to 4 carbon atoms, m is an aminoalkyl group represented by 0 ≦ m ≦ 4), and R ² is An unsubstituted or substituted monovalent hydrocarbon group having 1 to 18 carbon atoms, R ³ is -OR ⁸ (R ⁸ is 1 carbon atom
To a monovalent hydrocarbon group of 6), a is
0.0001 ≦ a ≦ 1, b is 1.8 ≦ b ≦ 2.2, c is 0 ≦ c ≦ 0.
1 <1.8 <a + b + c <2.3], and the amino equivalent is
500-100,000, viscosity at 25 ℃ is 10-100,000cS
The release agent composition according to claim 1, which is 3. The component (B) has the general formula (II) R ⁹ _d R ¹⁰ _e SiO _{(4-de) / 2} (II) [wherein R ⁹ is -R ¹¹ -O- (R ¹² O). _n -R ¹³ (R ¹¹ has 1 to 4 carbon atoms
A divalent hydrocarbon group, R ¹² is an ethylene group and / or a propylene group, R ¹³ is a hydrogen atom or an unsubstituted or substituted monovalent hydrocarbon group having 1 to 8 carbon atoms, an acetyl group, an isocyanic acid group, and n is 3 ≦ n ≦ 100), R ¹⁰ is one or two or more C 1-18 unsubstituted or substituted monovalent hydrocarbon groups, and d and e are 0.01
The release agent composition according to claim 1, which is a polyoxyalkylene-modified silicone oil having a viscosity of 10 to 100,000 cS at 25 ° C., which is 1.8 <d + e <2.3 when ≦ d ≦ 1, 1.2 ≦ e ≦ 2.2. object. 4. The release agent composition according to claim 1, 2 or 3, wherein the release agent composition is a release agent for producing a polyurethane molded article.