• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A water-soluble adhesive composition is provided, to improve heat resistance and creep resistance by containing intramolecular crosslinking reactive group and to reduce the drying time. CONSTITUTION: The water-soluble adhesive composition comprises 20-90 parts by weight of an acryl emulsion containing a carbonic acid group and a tertiary amino group; and 10-80 parts by weight of a water-dispersive epoxy composition containing an epoxy group. Preferably the acryl emulsion comprises 1-50 parts by weight of a radical polymerizable unsaturated monomer having at least one carbonic acid group, 1-50 parts by weight of radical polymerizable unsaturated monomer having at least one tertiary amino group, and 10-90 parts by weight of radical polymerizable unsaturated monomer. Preferably the water-dispersive epoxy composition comprises at least two epoxy groups.
    公开号:KR20040071367A
    申请号:KR1020030007298
    申请日:2003-02-05
    公开日:2004-08-12
    发明作者:최병권
    申请人:최병권；
    IPC主号:
    专利说明:

    Water-soluble adhesive composition
    [1] The present invention relates to a water-soluble adhesive, and more particularly, to provide improved heat resistance and creep resistance by containing a crosslinking reactive group in a molecule.
    [2] Conventional solvent-based adhesives have excellent adhesion and cohesion, and can be applied to various fields. However, organic solvents were used for the solubilization of the main components, and thus had problems such as destruction of ozone layer, air pollution, resource waste, and fire risk. .
    [3] In addition, the conventional water-soluble pressure-sensitive adhesives have been used in the field that does not require much adhesion or heat resistance because they are inferior to the organic solvent-type adhesive in terms of performance such as adhesive strength and heat resistance.
    [4] The present invention is to solve this problem, the present invention is achieved by complexing a water-dispersible epoxy composition based on an acrylic emulsion having a reactive group.
    [5] The water-soluble pressure sensitive adhesive according to the present invention is capable of high-solidization, not only shortening the drying time but also providing excellent heat resistance and creep resistance by introducing a crosslinking reactive group in the molecule. It is characterized in that the adhesion is possible.
    [6] The present invention relates to a water-soluble pressure-sensitive adhesive 1) 20-90 parts by weight of an acrylic emulsion containing a carboxylic acid group and a tertiary amino group in the composition (hereinafter composition A) 2) a water-dispersible epoxy composition containing an epoxy group in the composition 10-80 It relates to a water-soluble pressure-sensitive adhesive characterized by using a mixture of parts by weight (hereinafter the composition B) by mixing at room temperature or by heat curing after application.
    [7] Conventionally, pressure-sensitive adhesives using a water-soluble emulsion containing a carboxylic acid group (Korean Patent Publication No. 1999-010043, Korean Patent Publication No. 2000-0059816), etc., have a disadvantage in that the water resistance and the heat resistance are remarkably inferior. (Korean Unexamined Patent Publication 1999-0045036) Also, alkali resistance is weak.
    [8] The present invention is to solve this problem 1) to use a water-dispersible epoxy composition containing an epoxy group in the composition 2) an acrylic emulsion containing a carboxylic acid group and a tertiary amino group at the same time.
    [9] In the present invention, the tertiary amino group in the composition is characterized in that the carboxylic acid and the epoxy group act as a catalyst during the crosslinking reaction, and are related to a water-soluble pressure-sensitive adhesive composition having heat curing, in particular, room temperature curing.
    [10] .
    [11] Composition A according to the present invention comprises a) at least 1-50 parts by weight of a radical polymerizable unsaturated monomer containing at least one intramolecular carboxylic acid group b) at least one tertiary amino group in the molecule at least 1 radically polymerizable unsaturated monomer 1 -50 parts by weight c) An acrylic monomer composed of 10-90 parts by weight of a radical polymerizable unsaturated monomer is copolymerized by a known acrylic emulsion polymerization method, and the solids content of the emulsion can be 20-70 parts by weight, preferably 30 -50 parts by weight is suitable.
    [12] If the solid content is low, there is a disadvantage that the drying time is remarkably slow. If the solid content is too high, handling is difficult due to high viscosity and there is a risk of gelation.
    [13] Initiators and emulsifiers may be known, and typical examples thereof include alkali metal-based persulfates such as sodium persulfate and potassium persulfate. Sulfonates, sodium lauryl sulfonates, EO addition sodium lauryl sulfonates, amonium lauryl sulfonates, EO addition fatty acid esters and the like are suitable and these examples do not limit the scope of the present invention.
    [14] A typical example of a) radically polymerizable unsaturated monomer containing at least one carboxylic acid group in the composition A according to the present invention is acrylic acid, methacrylic acid, maleic acid, itaconic acid, hydroxyalkyl (meth) acrylate and acid anhydride. HALF-ESTER and the like and these examples do not limit the scope of the present invention.
    [15] In composition A according to the present invention, b) typical examples of radically polymerizable unsaturated monomers containing at least one tertiary amino group in a molecule include dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate, diethylaminoethyl acrylate, Diethylaminoethyl methacrylate, dimethylaminopropyl acrylate, dimethylamino atel methacrylate, diethylaminopropyl acrylate, diethylaminopropyl methacrylate, and the like, but these examples do not limit the scope of the present invention. .
    [16] Examples of c) radically polymerizable unsaturated monomers in the composition A according to the present invention include monofunctional such as alkyl (meth) acrylate, acrylonitrile, styrene, vinyl acetate, cyclohexyl (meth) acrylate and isobornyl acrylate. Unsaturated monomers, and polyfunctional unsaturated monomers such as ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate), and glycerin tri (meth) acrylate, and the like, and these examples limit the scope of the present invention. It is not.
    [17] In the composition B according to the present invention, the water-dispersion type epoxy composition is used by d) solubilizing an epoxy composition containing at least two or more epoxy groups in a molecule by a publicly known method. PHENOL A, DIGLYCIDYL ETHER OF EO ADUCTED BIS PHENOL A, DIGLYCIDYL ETHER OF BISPHENOL F, DIGLYCIDYL ETHER OF BIS PHENOL S, GLYCIDYL ETHER OF NOVOLAC PHENOL, GLYCIDYL ESTER OF FATTY ACID is not the scope of the invention. .
    [18] In the composition B according to the present invention, the method of solubilizing d) an epoxy composition containing at least two epoxy groups is used by adding a known polyacid or polyamine compound and solubilizing it. And if the addition amount is too low, there is a disadvantage that the acceptance is not satisfied.
    [19] If polyacid is added for the purpose of improving the water dispersibility of the water-dispersible epoxy composition according to the present invention, it can be used by neutralizing with an alkaline compound such as caustic soda or ammonia. It is possible to neutralize with a compound and use it.
    [20] Hereinafter, the present invention will be described in detail through the following examples and comparative examples, but these examples do not limit the scope of the present invention. In the following, parts and percentages are all based on weight unless otherwise specified.
    [21] Examples of the composition A according to the present invention are as follows.
    [22] Example 1-3 A monomer mixture is first prepared according to Table 1 in a four-necked flask equipped with a stirrer, a cooler, a thermometer, a dropping funnel, and a nitrogen injection device.
    [23] The monomer mixture was added dropwise to the reactor over 4 hours and aged for 2 hours after the dropping was completed to terminate the reaction, thereby preparing Composition A.
    [24] Comparative Example 1-2) An acrylic emulsion was prepared in the same manner as in the working example using the mixed solution described in Table 1.
    [25]
    [26] Examples of the composition B according to the present invention are as follows.
    [27] Example 4 A 400 liter portion of YD 128 (Dukdo Chemical Epoxy Resin, Epoxy Equivalent 198) resin, DIGLYCIDYL ETHER OF BISPHENOL Type A resin, was placed in a 1 L four-necked flask equipped with a stirrer, thermometer, cooler, and dropping funnel. Next, ethanol amine was added at the same equivalence ratio, and the reaction was terminated when the epoxy equivalent was 620 to prepare an epoxy composition B.
    [28] Example 5 In Example 4, EMPOL DIMER (trade name of EMERY), which is a fatty acid dimer instead of ethanolamine, was used in an equivalent ratio to terminate the reaction at an epoxy equivalent of 450, and the remaining carboxylic acid groups were neutralized using the same equivalent ratio of caustic soda. To prepare an epoxy composition B.
    [29] In order to prepare a composition according to the present invention, the composition A of Examples 1-3 and the composition B of Examples 4 and 5 were uniformly mixed in the ratios described in Table 2, and the following physical properties were measured.
    [30]
    [31] (Property measurement)
    [32] (1) adhesion
    [33] 1.Adhesion
    [34] Peel the urethane foam sheet to 25mm X 150mm stainless steel 316 by hand and measure the peel strength by time (peel rate 50mm / min)
    [35] 2. Shear Adhesion Strength
    [36] Shear adhesive strength was measured after 1 hour after pressing the urethane foam sheet to the island-painted steel sheet by hand so that the area of the shear surface was 25 mm X 25 mm.
    [37] 3. Heat resistance
    [38] Winding 50x100 mm urethane foam sheet in 42mm diameter stainless steel 316 pipe and leaving it for 1 hour at room temperature and putting it in 100C oven for 1 hour and measuring the distance (left and right average value)
    [39] 4. Heat resistance creep resistance
    [40] Urethane foam sheet of 50 × 150 mm and ear coated steel sheet were pressed by hand and left at room temperature for 24 hours, then left for 1 hour in 100C oven.
    [41]
    [42] 5. Peel strength measurement for polyethylene film
    [43] Peel the polyethylene film on the 225mm X 150mm stainless steel 316 by hand and measure the peel strength by time (peel rate 50mm / min)
    [44]
    [45] As a result of the test, the water-soluble pressure sensitive adhesive according to the present invention uses a monomer having a crosslinkable functional group and crosslinks, so that it is excellent in heat resistance and creep resistance compared to a conventional pressure sensitive adhesive, and thus can be usefully used in fields requiring high adhesive strength, cohesion and heat resistance. In addition, unlike the conventional adhesives, the test results showed satisfactory adhesive strength in polyethylene materials.
    权利要求:
    Claims (6)
    [1" claim-type="Currently amended] 1) 20-90 parts by weight of an acrylic emulsion containing both a carboxylic acid group and a tertiary amino group in the composition 2) 10-80 parts by weight of an aqueous dispersion-type epoxy composition containing an epoxy group in the composition is mixed and applied at room temperature or heat Water-soluble adhesive composition, characterized in that
    [2" claim-type="Currently amended] The acrylic emulsion according to claim 1 is a) at least 1-50 parts by weight of a radically polymerizable unsaturated monomer containing at least one carboxylic acid group in the molecule b) at least one radically polymerizable unsaturated monomer containing at least one tertiary amino group in the molecule 1-50 parts by weight c) A water-soluble pressure-sensitive adhesive composition comprising 10-90 parts by weight of a radical polymerizable unsaturated monomer.
    [3" claim-type="Currently amended] The water-soluble pressure-sensitive adhesive composition according to claim 2, wherein the acrylic emulsion has a high content of 20-70 parts by weight and preferably 30-50 parts by weight.
    [4" claim-type="Currently amended] The water-soluble adhesive composition of claim 1, wherein the water-dispersible epoxy composition uses an epoxy resin composition containing at least two epoxy groups in a molecule.
    [5" claim-type="Currently amended] The water-dispersible epoxy composition of claim 4 is a water-soluble adhesive composition which is used by adding a polyacid or a polyamine to an epoxy paper containing two or more epoxy groups in a molecule.
    [6" claim-type="Currently amended] The water-soluble adhesive of claim 1 is a water-soluble pressure-sensitive adhesive composition characterized in that it is used as a pressure-sensitive adhesive for substrates such as plastics, foams or fibers such as rubber, leather, metal, polyvinyl chloride, polyethylene, etc.
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    同族专利:
    公开号 | 公开日
    KR100540448B1|2006-01-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2003-02-05|Application filed by 최병권
    2003-02-05|Priority to KR20030007298A
    2004-08-12|Publication of KR20040071367A
    2006-01-10|Application granted
    2006-01-10|Publication of KR100540448B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR20030007298A|KR100540448B1|2003-02-05|2003-02-05|Water Soluble Adhesive Composition|
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