TW200531992A - Moisture-hardening composition and method of adhesion - Google Patents

Abstract

This invention is to provide moisture-hardening composition with excellent performance to be used as adhesives for assembling electric products or precision machines with requirement of flame retardance. The disclosed composition comprises the following necessary ingredients: (A) at least one polymer chosen from the groups of polyurethane polymer containing hydrolysis-crosslinkable reactive group, siloxane with hydrolysis-crosslinkable reactive group and poly hydroxyl-olefin polymer with hydrolysis-crosslinkable reactive group; (B) metal oxides with mean diameter of 0.1 ~ 200 μm; and (C) surface-treated calcium carbonates with mean diameter of 0.01 ~ 10 μm.

Description

200531992 发明 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a moisture-curable composition and an adhesion method, and particularly to an adhesive 'fixing agent' such as an electrical product or a combination of precision equipment requiring flame resistance It is a moisture-hardening composition and adhesion method with excellent properties and long-term storage stability.

[Prior art]

In recent years, electrical and electronic markets, construction markets, civil markets, and other strong requirements have required flame retardant adhesives, sealants, coatings, and injection molding materials. As for adhesives and sealants, in recent years, elastic adhesives have been widely used to absorb the deformation caused by the difference in thermal expansion caused by the adhesion of dissimilar materials, and it is required to prevent cracks from having excellent adhesion and displacement followability. As flame retardants related to flame retardant adhesives, phosphorus-based flame retardants, halogen-based flame retardants, and metal oxides are generally used. Among them, polyphosphates such as sodium polyphosphate and ammonium polyphosphate, and phosphorus-based flame retardants such as phosphorus pentoxide, There are concerns about reduced water resistance or copper corrosion. In addition, bromine-based flame retardants such as decabromodiphenyl ether and tetrabromobisphenol A, which are halogen-based flame retardants, have been accused of having concerns about metal corrosion or air pollution. This flame retardant and tin oxide can greatly improve the flame resistance, and tin oxide is a non-ideal problem. On the one hand, aluminum hydroxide or magnesium hydroxide of metal oxides are non-halogen flame retardants and have been used as flame retardants for various plastics in recent years. However, when the metal oxide is used for the flame resistance of the silyl-denatured polyether composition, when the metal oxide is not added in an amount of 3 to 50 parts by weight based on 5,000 parts by weight-200531992 (2) parts or more, it cannot be exhibited. Corresponds to UL94 V-O (sample thickness) .5 mm), and has poor adhesion to various plastics, and has the problem of low thermal aging. In addition, the flammability regulations of household electrical appliances are based on the UL standard in the United States, and are the object of regulation for most products. UL94 is used to evaluate the flame resistance of electrical products and plastic materials. Among them, UL94-V-0 is the highest level of flame resistance. Japanese Patent Application Laid-Open No. 11-3 1 0682 describes a moisture-curable composition containing a reactive silicon-based propylene-based copolymer and a metal oxide. When the moisture-curable composition is stored for a long time, the composition is in a liquid state. The ingredients will ooze, and there is a problem with long-term storage stability. It is extremely difficult to stir and use the one-liquid moisture-hardening type, and the use period is limited. [Disclosure of the invention] [Disclosure of the invention] In order to solve the above-mentioned problems, the inventors and others have thoroughly studied the results, and combined the polymer with a reactive functional group, the metal oxide, and the surface-treated calcium carbonate to obtain an adhesive, solid The basic properties of the adhesive are UL 9 4-V-0 qualified, and have long-term storage stability and flame-resistant hardened materials. The present invention aims to provide a moisture-curable composition with excellent properties of an adhesive and a fixing agent for an electrical product or a precision machine combination that requires flame resistance, and an adhesive method using the same. In order to solve the above problems, the moisture-curable composition of the present invention contains (A) at least one type of polyurethane-6 · 200531992 (3) Hydrolyzed crosslinkable reactive siloxanes and polymers selected from the group consisting of polyhydroxyolefin-based polymers with hydrolyzed crosslinked reactive groups, (B) metal oxides with an average particle size of 0. to 200 μηι, And (C) surface-treated calcium carbonate having an average particle size of 0.01 to 10 μm. The essential components are its characteristics. The propenyl and methacryl groups according to the present invention are described as (meth) propenyl.

The polymer (A) is a (A1) having a reactive silicon group which can be cross-linked by hydrolysis and the molecular chain is substantially (1) an alkyl (meth) acrylate monomer unit having an alkyl group having 1 to 8 carbon atoms. And (2) a copolymer formed of an alkyl (meth) acrylate monomer unit having an alkyl group having 10 or more carbon atoms is preferred.

The metal oxide (B) is preferably aluminum hydroxide and / or magnesium hydroxide. In particular, the metal oxide (B) is preferably a metal oxide treated with a coupling agent, a fatty acid or a resin acid. The use of the surface-treated metal oxide can improve the viscosity or electrical characteristics related to storage stability. The surface-treated calcium carbonate (C) is preferably a calcium carbonate treated with a fatty acid or resin acid. The polymer (A) is preferably a mixture of the above-mentioned copolymer (A1) and a polymer (A2) having a reactive silicon group capable of being hydrolyzed and crosslinked, and a molecular chain substantially consisting of a hydroxyalkylene monomer. There is no particular limitation on the compounding ratio, and it is suitable to blend 10 to 200 parts by weight of the 200531992 (4) polymer (A2) with respect to 1,000 parts by weight of the copolymer (A 1). With respect to 100 parts by weight of the polymer (A) and 30 to 350 parts by weight of the metal oxide (B), the surface-treated calcium carbonate (q 1 to 200 parts by weight) is suitable. The gas-curable composition is more preferably blended with 0.1 to 50 parts by weight of finely divided silicon dioxide (D) based on 1,000 parts by weight of the polymer (A).

The finely-divided silica (D) is suitably fumed silica or hydrophobic silica treated with a coupling agent. The adhesion method of the present invention is characterized by using a moisture-curable composition of the present invention to adhere a part of a flame-resistant product. [Best Modes for Implementing the Invention] The following describes the implementation modes of the present invention. These implementation modes are for illustration and illustration. Of course, there can be various kinds without departing from the scope of the technical idea of the present invention.

Deformation. The moisture-curable composition of the present invention includes the following components (A), (B), and (C) as essential components. (A) At least one polymerized from a polyurethane polymer having a hydrolyzable crosslinkable reactive group, a siloxane having a hydrolyzable crosslinkable reactive group, and a polyhydroxyolefin-based polymer having a hydrolyzable crosslinkable reactive group Polymers selected in groups, (B) metal oxides having an average particle size of 0.1 to 200 μιη, and (C) average particle sizes of 0.001 to 1 (^ surface-treated calcium carbonate. -8- 200531992 (5) The reactive group used in the present invention which can be decomposed and cross-linked by hydrolysis can include, for example, a reactive silicon group, an isocyanate group, and a reactive silicon group is preferred. The above reactive silicon group has a silicon atom The bonded hydroxyl group or hydrolyzable group is a silicon-containing group which is cross-linked by forming a siloxane, and a silicon-containing functional group represented by the following formula (1) is suitable.

-Si—X 3-b --Si-〇

IL X2-a (In the formula, R1 is the same or different, the substituted or unsubstituted monovalent organic group or triorganosiloxane group whose carbon number is 1 to 20 respectively, X is hydroxyl and heterogeneous or the same kind of water Decomposition basis, when X exists in plural, they can be the same or different, a is an integer of 0, 1 or 2, and b is an integer of 0, 1, 2, or 3, and a = 2 and b = 3, m Is an integer from 0 to 18). The polyurethane polymer having the above-mentioned hydrolyzable cross-linking reaction group is not particularly limited, and specific examples thereof include W 0 9 8/5 8 0 0 7, Japanese Patent Laid-Open No. 100427, Japanese Patent Laid-Open No. 2000- Known urethane resins described in 143757, Japanese Patent Application Laid-Open No. 2000-1 6954 5 and the like are preferably urethanes having an aryloxysilyl group. The (meth) acrylic acid ester-based polymer having the above-mentioned hydrolyzable cross-linking reaction group is not particularly limited. Specific examples include Japanese Patent Laid-Open No. 59_122541, Japanese Patent Laid-Open No. 60-31556, and Japanese Patent Laid-Open No. 60-31556. 63 · 1] No. 2642, Japanese Patent Application Laid-Open No. 11-3 1 0682 and other publications described in -9-200531992 (6) Alkyl (meth) acrylate polymers are known to use reactive silicon groups. The (meth) acrylic acid alkyl ester copolymer is ideal, and has a reactive silicon group which can be cross-linked by hydrolysis, and the molecular chain is substantially (1) an (meth) acrylic acid alkyl ester having an alkyl group having 1 to 8 carbon atoms. The copolymer (A 1) composed of a bulk unit and (2) an alkyl (meth) acrylate monomer unit having an alkyl group having 10 or more carbon atoms is preferred. The siloxane having the above-mentioned hydrolyzable cross-linking reaction group is not particularly limited, and specific examples include Japanese Patent Laid-Open No. 10-316858, Japanese Patent Laid-Open No. 11-209620, and Japanese Patent Laid-Open No. 2001-200161. A well-known room-temperature-curable organopolysiloxane. The polyhydroxyolefin-based polymer having the above-mentioned hydrolyzable crosslinking reaction group is not particularly limited. Specific examples include Japanese Patent Publication No. 4 5-3 6 3 1 9, Japanese Patent Publication No. 46-12154, and Japanese Patent Publication No. 49 No. -32673, Japanese Patent Application Laid-Open No. Sho 50-1565565, as described in various publications and the like, is known as a hydroxyolefin-based polymer having a reactive silicon group. Among the polymers (A), (meth) acryl-based polymers, polyhydroxyolefin-based polymers having the above-mentioned reactive groups, and mixtures thereof are polymerized more than polyurethanes having the above-mentioned reactive groups. Good heat resistance. In addition, the (meth) acryl-based polymer having the above-mentioned reactive group, the polyhydroxyolefin-based polymer having the above-mentioned reactive group, and mixtures thereof may contain or not generate a low-molecular ring depending on the reason of the contact point β. The viewpoint of the sand-like oxygen house is more suitable than the siloxane having the above-mentioned reactive group. Also, the above-mentioned alkyl (meth) acrylate copolymer having a reactive silicon group has a high viscosity at a polymerization degree of about 3000 to 6000, and does not use -10- 200531992 (7) Plasticizer, polyether polyol When liquids such as solvents and solvents are diluted, the workability is poor. On the one hand, compared with alkyl (meth) acrylate-based polymers, hydroxyolefin-based polymers having a reactive silicon group can be obtained with low viscosity with the same degree of polymerization. Therefore, for the purpose of improving workability, etc., when the above-mentioned alkyl (meth) acrylate copolymer having a reactive silicon group and the hydroxy olefin polymer having a reactive silicon group are used, a solvent-free type can be formed. Fire-resistant composition. When the polymer (A) is a mixture of the aforementioned (meth) alkyl acrylate-based copolymer having a reactive silicon group and a hydroxyolefin-based polymer having a reactive silicon group, the mixing ratio of the two is not particularly limited. It is preferable to mix 10 to 200 parts by weight of a hydroxyolefin-based polymer having a reactive silicon group with respect to 100 parts by weight of the (meth) acrylic acid alkyl copolymer having a reactive silicon group. As the curable composition of the present invention, a general hard catalyst can be used. The curing catalyst can be used without any particular limitation on the polymer (A). Specific examples include dibutyltin dilaurate, dibutyltin oxide, dibutyltin diacetate, dibutyltin distearate, dibutyltin acetone dibutyltin complex salt, dioletin maleate, dioctyl acid Tin compounds such as dibutyltin, dioctyltin oxide, and dioctyltin dilaurate; metal complexes such as tetra-n-butoxytitanate, tetraisopropoxytitanate, etc. Ester-based compounds; Lead metal carboxylates such as lead octoate, lead naphthenate, nickel naphthenate, cobalt naphthenate, zinc-based compounds, iron-based compounds, bismuth; acetoacetone aluminum complex salt, acetoacetone palladium complex salt Etylacetone metal complex salts. In addition, -11-200531992 (8) amine salts such as dibutylamine-2-ethylhexanoate, or organic phosphoric acid compounds such as monomethylphosphoric acid, di · η-phosphoric acid, or other acidic catalysts and alkaline catalysts can also be used. . These can be used alone or in combination of two or more. As the metal oxide (B), for example, aluminum hydroxide and magnesium hydroxide are applicable. It is possible to use a non-surface-treated metal oxide, or to use a surface-treating agent such as a coupling fatty acid and resin acid. These can be used alone or in combination of two or more. Examples of the coupling agent include organic titanate compounds, organic compounds, organic chromium compounds, and alkoxysilanes. Specific examples include titanate compounds such as titanium tetrapropoxide, titanium tetrastearate, titanium dipropoxide (acetylacetone ligand) titanium, titanium propionate glycolate, and isopropyl tristearate Isostearyl Titanate, Isopropyltrilaurylbenzenesulfonium Titanium Isopropyltri (dioctyl pyrophosphate) Titanate, Tetraisopropylbisoctyl Phosphate) Titanate Bis (ditridecyl phosphate), tetra (2,2 · diaryloxymethyl-butyl) bis (ditripolyphosphate titanate, bis (dioctyl pyrophosphate) ethylene titanate As the acid ester, an organoaluminum compound such as ethyl alkoxy aluminum diisopropylate, or an organic zirconium compound such as ethyl acetate butyrate, chromium acetate acetone butyrate, chromium lactate, and chromium stearate are used. Also, silane Examples of the compound include vinyltrisilane, vinyltriethoxysilane, bistris (2-methoxyethoxy), N- (hotethyl) 3-propanylmethyl-methoxy sand Institute, N- (Ammonia Z 3-aminopropylmethyltrimethoxysilane, 3-aminopropyltrimethoxysilane aminopropyltriethoxysilane, 3-aminoglycidoxypropyldimethoxy Alkanes, 2- (3, 4 · Epoxycyclohexyl) ethyldimethoxysilane, 3-chlorobutylating agent oxidizer, aluminized organic • titanium, ester (di) titanium I) Chromium, ester methoxy ) Silyl:), 3 -ylsilyl-12 200531992 (9) trimethoxysilane, 3-chloropropylmethyldimethoxysilane, 3-methoxypropyltrimethoxysilane, 3 · Hydroxythiopropyltrimethoxy 髟 methyl disoxazine, etc. Examples of the above fatty acids include saturated acids such as capric acid, lauric acid, myristic acid, stearic acid, arachidic acid, etc. Unsaturated acids such as oleic acid, ricinoleic acid, and alicyclic carboxylic acids such as naphthenic acid include the above resin acids such as abietic acid, pimaric acid, balacic acid, etc. Aluminum hydroxide, magnesium hydroxide, or the like In order to release the structural water at a temperature of approximately 180 ~ 320 ° C, the mixture can be burned, spread, and exhibit excellent flame resistance. The metal hydroxide used is aromatic amine and naphthalene. When the coupling agent, fatty acid or resin acid surface treated with compounds and the like, the flame resistance is reduced to some extent, and the viscosity can be improved. The stability of the metal hydroxide can be from 0.1 μm to 200 μm. The particle size of the metal hydroxide can be 0.3 μm to 100 μm, and more preferably 0.3 μm to 30 μm. The particle size of the metal hydroxide is lower than 0.1 μm. In some cases, there is a problem that the composition becomes high and the workability becomes poor. On the one hand, when the quantity exceeds 200 μm, the amount of metal hydroxide accumulated on the needle end or the fitting part of the device when the quantitative output is quantitatively polymerized relative to 100 parts by weight. It is desirable to mix 50 parts by weight to 350 parts by weight, 80 parts by weight to parts by weight are more desirable, and most preferably 110 parts by weight to 230 parts by weight when the metal hydroxide is less than 50 parts by weight, sufficient propylene cannot be obtained. 'Alkane, hexa ... palm :, linoleic acid. Glyceric acid, the material of the prevention or active surface treatment of electrical characteristics, when the viscosity is significant, 280 parts by weight of the substance (A). This flame resistance is 13-200531992 (10). For example, the polymer continues to decompose and liquefy when it spreads on fire. On the one hand, more than 350 parts by weight of the composition is too high in viscosity and the workability is poor. Basic physical properties such as adhesion strength Not sure. Further, the flame resistance varies somewhat depending on the particle size of the metal hydroxide. The use of the above-mentioned halogen-based, phosphorus-based, tin oxide and other flame retardants usually has the above problems. In the present invention, these flame retardants can be used with metal hydroxides. Other zinc borate, zinc stannate, etc. also have the effect of reducing the amount of smoke, and can be added. As the surface-treated calcium carbonate (C), a known surface-treated calcium carbonate having an average particle diameter of 0.01 to 10 μm can be widely used. Specific examples of the surface treatment agent for the surface-treated calcium carbonate include saturated acids such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, and the like, oleic acid, oleic acid, and linoleic acid. Unsaturated acids such as ricinoleic acid, cycloaliphatic carboxylic acids such as naphthenic acid, and resin acids such as abietic acid, papiric acid, balasinic acid, and neorosinic acid. Calcium carbonate treated with sulfonic acids, alkali metal salts, alkaline earth metal salts, ammonium salts, and amine salts can also be used. Anionic, cationic, and nonionic surfactant-treated calcium carbonate can also be used. The amount of the surface-treated calcium carbonate is preferably 1 to 200 parts by weight based on 100 parts by weight of the polymer (A), preferably 3 to 70 parts by weight, and most preferably 5 to 40 parts by weight. When the surface-treated calcium carbonate exceeds 200 parts by weight, sufficient flame resistance cannot be obtained, and the viscosity of the composition becomes high, resulting in workability problems. Untreated calcium carbonate, talc, clay, magnesium carbonate, anhydrous silicon, hydrous silicon, calcium silicate, silica ball, glass ball, etc. can also be added. When these inorganic -14-200531992 (11) substances are added, flame resistance can be improved. Sex. The moisture-curable composition of the present invention can further add component (D) fine powder silica. The above fine powdered silica is suitably a fumed silica or a hydrophobic silica treated with a coupling agent. The amount of the finely divided silica is preferably from 0 to 50 parts by weight based on 100 parts by weight of the polymer (A).

In addition, other additives may include an ultraviolet absorber, an anti-aging agent, a high boiling point solvent, and a silane coupling agent (aminosilane, epoxysilane, acrylsilane, fluorenylsilane, isocyanate silane, etc.). When epoxy resin is used in the composition of the present invention, the residual carbon ratio can be increased to improve the dripping property (dropping during combustion), so that the amount of the metal hydroxide compound can be reduced. As the flame retardant, a commercially available siloxane compound can be used as a non-halogen flame retardant.

The adhesion method of the present invention uses the above moisture-curable composition to adhere parts of a flame-resistant product. Examples of the flame-resistant products include speakers for electric products, video recorders, televisions, vending machines, cold storages, personal computers, cassette batteries, video cameras, etc., and automobile parts and precision equipment other than cameras. The adhesive method of the present invention is applicable to the adhesion of high-voltage parts, high-voltage circuits or parts used around them, and adhesion in electrical products that run continuously for a long time. Examples of such parts include connectors, openings, relays, wires and cables, feedback transformers, and bias coils. -15- 200531992 (12) [Embodiments] The present invention will be described in detail with examples below. These examples are for illustration. Of course, the present invention is not limited to the examples. Manufacturing Example (Method of Manufacturing Compound A) 63.5 g of butyl acrylate, 389 g of methyl methacrylate, 117 g of stearyl methylpropionate, and 30 · 5 g of TSMA (7, -methylpropane) Diluted propyl dimethoxymethyl sand plant) 12.0 g AIBN (azoisobutyronitrile), 2 5 5 g toluene, dissolved evenly. 30 g of this mixture was put into a 200 ml 4-necked flask equipped with a stirrer and a cooling tube, and heated at 80 ° C. after passing nitrogen gas. After a few minutes, polymerization and heating were started. After the heat was set, the dropping mixture was used to remove the remaining mixture for 3 hours. Polymerization was slowly dripped over a period of time. It was confirmed that the polymerization was terminated when no heat was generated. The number-average molecular weight was 9 7 00, the polymerization conversion rate was 99%, and the resin solid content was 70%. Production Example 2 (Production Method of Composition B) Production Example 1 Synthetic compound 85.7 g and 73.3 g SAIRYL SAX 3 5 0 (trade name of the main chain is polypropylene oxide with a dimethoxysilyl compound at the end [made by Nippon Kazuo Chemical Industry Co., Ltd.]) , Put into a 3-necked flask, heated in an 80 ° C oil bath to remove toluene under reduced pressure. It became 100% solids with a viscosity of 100 Pa · s (B-type rotary viscometer, BH type No. 7 rotor, 20 rpm). (Examples 1 to 5 and Comparative Examples 1 to 2) -16- 200531992 (13) Put the ingredients into the satellite mixer according to Table 1 (unit: parts by weight) and mix at 1000 ° c. 1 After an hour, it was cooled to 20 ° C, and a hardening catalyst and an adhesion promoter were added, and mixed under reduced pressure for 1 〇 In minutes, the room-temperature-curable composition was blended with respect to each compound. The thus obtained room-temperature-curable composition was blended, and the flame resistance and adhesive strength were evaluated. The results are shown in Table 1. Table 1

EXAMPLES COMPARISON 1 2 3 4 5 1 2 Compound A 100 _ _ • Composite B • 100 100 100 100 100 100 HIZYLITE H21 200 200 200 200 200 200 200 Heavy HIZYLITE H42 1: 1 50 ^ L CCR 5 5 40 5 5 Mineral AEROSIL R972 • • 2 WHITE TONE SB Reference mine 40 Dibutyltin dilaurate 2 2 2 2 2 2 2 SH6020 4 4 4 4 4 4 4 Inherent adhesive strength (N / cm2) 262 260 259 260 270 250 237 1st second to flame resistance 0 0 0 0 0 0 0 0 2nd second 1 1 0 0 1 1 1 Valence stability 2 3 ° C 90 days 〇〇〇〇〇XX 5 0〇60 60 days Each component in Table 1 is as follows: -17-200531992 (14) HIZYLITE H21: Trade name of aluminum hydroxide [manufactured by Showa Denko Electric Co., Ltd.]. HIZYLITE H42: Trade name of aluminum hydroxide [made by Showa Denko Electric Co., Ltd.]. Bai Huahua CCR: fatty acid-treated calcium carbonate). WHITE TONE SB: Trade name system of calcium carbonate). AEROSIL R972: Trade name of silicon dioxide (manufactured by the company). Dibutyltin dilaurate: a hardening catalyst. SH 6020: Trade name of the adhesive agent [7-(2aminoethoxysilane) [manufactured by TORAY SILICONE (Japan)]. In addition, the evaluation of each performance is based on the adhesive strength of the steel sheet (1.6 X 25 X kinds of adhesives are applied on 25 x 25 adhesive area and placed for 3 minutes, and then bonded and cured at 20 ° C for 7 days, with a strength of 50. Fire resistance: at] · 5 mm gap board made of sand oxygen adhesive into thin sheet ' After 7 days of curing at 20 ° C, Examples 1 to 4 and Comparative Examples 1 and 2 were made into 1 · 5 X 1: tablets. Example 1 was cured in a ° C dryer for 7 days' and a sheet of 130 mm. Inner diameter 9.5 mm (average particle size: 25 μm) (average particle size: 1 μm) (Shiraishi Shiraishi (strand) (Yamoto Shiraishi (strand) (Yakimoto AEROSIL base)) aminopropyl trimethyl DOW CORNING 1 0 0 mm) Measure the thickness of each 200 μm thickness between the alkane release paper, and release the release paper to a thickness of i X 1 3 0 mm to make 1.5 X 1 3 X. The height of the lamp adjustment is -18. -200531992 (15) The blue flame of 19 mm, the central part of the lower end of the test piece held vertically in the longitudinal direction of the fixture is in contact with the flame for 10 seconds. After contacting the flame, until the combustion stops That is, contact the flame for another 10 seconds at the same position, and record the first and second burning time. Storage stability: The adhesive is filled with a 135 ml laminated hose, with 2 3cC X 90 days and 50 ° CX Leaving for 60 days, observe the exudation of liquid components. Evaluation Criteria 〇: No exudation of liquid components when extruded from the hose X: Exudation of liquid components when extruded from the hose As shown in Table 1, surface treatment is added Examples 1 to 5 of calcium carbonate, compared with calcium carbonate without a surface treatment, have excellent storage stability while maintaining flame resistance and adhesive strength. Second, the moisture-hardening composition and the flame-resistant product of the present invention, for example, are used When deviating the adhesion of the coil parts, refer to the following drawing

Fig. 1 is a perspective view showing the structure of a bias coil and a place where an adhesive is applied. In the figure, 10 is a bias coil having a coil shaft 20, and a wedge 22 protruding laterally is provided below the coil shaft. 24 is a coil mounted on the coil shaft. The coil 24 is provided with a ferrite 25. A mounting plate 2 8 provided with a bias coil mounting screw 2 6 is provided above the coil shaft, and a pure magnet 30, a 4-pole reversing magnet 32, and a 6-pole reversing magnet 34 are provided. The combination of the biased coils 10 is performed as follows. The coil shaft 20, the ferrite 25, and the coil 24 are temporarily combined without using an adhesive, and are adhered to each other with an adhesive -19- 200531992 (16). Next, the coil shaft 20 is adhered to each of the magnets 30, 32, 34, or silicon steel plate parts and components made of sUS with an adhesive. Finally, the wedge 2 2 is used to bias the coil 1 〇 and temporarily fixed to the image tube (not shown in the figure), and then it is adhered with an adhesive. That is, the "adhesive application place" is the place shown in Fig. 1 below. ① The mounting plate 2 of the pure magnet 30 and the screw 2 6 above is provided with the laminated side portions of the pure magnet 30, the 4-pole reversing magnet 3 2 and the 6-pole reversing magnet 3 4 12 °, and the coil mounting screws 2 6 and The joint portion 14 of the mounting plate 2 8 ③ The joint portion 16 of the coil shaft 20 and the coil 2 4. ④ The joint portion 18 of the coil shaft 20 and the inclined wedge 22. At this time, the adhesive of each part is adhered, and various adhesives shown in Table 2 are applied to the stack. Table 2 3 points for the purpose of the adhesive used by the adhesive parts (coil shaft, ferrite, coil) Hot melt system M Electromagnetic for fixed adjustment, coil shaft rubber system 1 Fixed silicon steel plate, SUS, coil shaft rubber system Fixed coil shaft, coil epoxy system fixed at 3 points (video tube, wedge, coil shaft) Siloxane RTVM fixed * 1: Polyamide, polyolefin-based composition. * 2: chloroprene, nitro rubber-based composition. -20- 200531992 (17) * 3: 2 liquid type (main agent: epoxy resin, hardener: polyamine, polyamine, etc.), etc. * 4: The problems of conventional adhesive with 1 degree deacetylated room temperature hardening type sand oxygen department are as follows. ① Due to the hot-melt adhesive softening at high temperature, the part is shifted. ② Because the rubber-based adhesive composition contains a solvent ‘labor safety and health problems, in addition to environmental pollution, it erodes plastic parts’ and causes strain cracks. ③ Siloxane RTV has good heat resistance, is solvent-free, and basically has poor adhesion to various adhered materials. ④ Since the epoxy adhesive can be hardened at room temperature, a two-liquid type is usually used. The measurement of the main agent and the hardener is wrong, the yield is poor, and the hardening time is pointed out only when the hardener is cured at room temperature.

Instead of various adhesives having the above problems, the moisture-curable composition of the present invention is used as an adhesive, and the problems of the recent adhesives can be solved in one fell swoop. That is, the moisture-hardening composition of the present invention can be non-solvent due to flame resistance, and does not soften at high temperatures. It has good adhesion to various adhered materials and excellent storage stability. Of course, it can be used instead of conventional adhesives. The problem can be used as an ideal adhesive. [Application fields in the industry] As mentioned, the moisture-curable composition of the present invention can be easily solvent-free due to flame resistance, does not soften at high temperatures, has good adhesion to various adhered materials, and has excellent storage stability. Adhesives and fixatives for electrical products requiring flame resistance or -21-200531992 (18) precision machine combinations. / [Brief Description of the Drawings] Figure I shows an oblique view of the lateral structure and the place where the adhesive is applied. [Symbol description] 1 0 bias coil k 12 pure magnet 3 0, screw 2 6 mounting plate 2 8 pure magnet 3 0, 4-pole reversing magnet 3 2 and 6-pole reversing magnet 3 4 laminated side part 1 4 Biased to the joint portion of the coil mounting screw 26 and the mounting plate 28 6 The joint portion of the coil shaft 2 0 and the coil 2 4 1 The joint portion of the coil shaft 2 0 and the wedge 2 2 0 The coil shaft 22 the wedge 24 Coil ^ 25 Ferrite 26 Bias coil mounting screws 2 8 Mounting plate 3 0 Pure magnet 3 2 pole reversing magnet 3 4 pole reversing magnet 22-

Claims (1)

200531992 (1) Scope of application and patent application1. A moisture-curable composition containing essential components; (A) at least one polyurethane polymer having a crosslinkable reactive group capable of being hydrolyzed; Groups of (meth) acrylic polymers having crosslinkable reactive groups, siloxanes having crosslinkable reactive groups, and polyhydroxyolefin polymers having crosslinkable reactive groups The selected polymers are (B) metal oxides having an average particle size of 0.1 to 200 μm, and (C) calcium carbonate having an average particle size of 0.01 to 10 μm surface-treated. 2. For example, the moisture-curable composition of the scope of patent application, wherein the polymer (A) is (A1) having a reactive silicon group that can be cross-linked by hydrolysis, and the molecular chain is substantially (1) with carbon Copolymer of an alkyl (meth) acrylate monomer unit having an alkyl group of 1 to 8 and (2) an alkyl (meth) acrylate monomer unit having an alkyl group having 10 or more carbon atoms. 3. The moisture-curable composition according to item 1 of the application, wherein the metal oxide (B) is aluminum hydroxide and / or magnesium hydroxide. 4. The moisture-curable composition according to item 1 of the application, wherein the metal oxide (B) is a metal oxide treated by a coupling agent, a fatty acid, or a resin acid. 5 · If the moisture-curable composition of item 1 of the patent application scope, wherein the surface-treated calcium carbonate (C) is a fatty acid or resin acid, 200531992 (2) calcium carbonate. 6. For example, the moisture-curable composition of the scope of patent application, wherein the polymer (A) is the above-mentioned copolymer (A1) and (A2) having a reactive silicon group which can be cross-linked by hydrolysis, and the molecular chain is substantially A mixture of the polymer made of the above-mentioned hydroxyacademic monomer is added to the polymer (A 2) in an amount of 10 to 200 parts by weight based on 100 parts by weight of the copolymer (A1). 7. The moisture-curable composition according to item 1 of the scope of the patent application, wherein 30 to 350 parts by weight of the metal oxide (B) is added to 100 parts by weight of the polymer (A), and the above is added. 1 to 200 parts by weight of surface-treated calcium carbonate (C). 8. The moisture-curable composition according to item 1 of the scope of the patent application, wherein the fine polymer silicon dioxide (D) is added in an amount of 0.1 to 50 parts by weight based on 100 parts by weight of the polymer (A). 9. The moisture-hardening composition according to item 8 of the patent application, wherein the finely divided silicon dioxide (D) is fumed silica or hydrophobic silica treated with a coupling agent. 10. An adhesive method characterized by using a moisture-hardening composition such as item 1 of the patent application to adhere to a part of a flame-resistant product ° -24-