• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    A composite hot melt adhesive mesh film and method of manufacture thereof, in particular, a composite hot melt adhesive mesh film and method of making same for adhering a metal to a nonpolar material are disclosed. The netting film is composed of a polar polyamide hot melt adhesive and a nonpolar polyolefin hot melt adhesive mesh film containing a mediator and having a high bond strength and a durable and stable adhesion, particularly suitable for bonding and assembling metallic materials such as stainless steel , Aluminum and copper, and nonpolar polymers such as polyethylene and polypropylene. The manufacturing process is completed in a single manufacturing process set from raw material pretreatment to final fabrication of the hot melt adhesive film product, thereby largely eliminating manufacturing defects, increasing manufacturing efficiency and reducing costs.
    公开号:CH712138B1
    申请号:CH00792/17
    申请日:2015-12-16
    公开日:2018-07-31
    发明作者:Li Zhelong；Zhu Wanyu；Ma Xingquan；Lei Heji；Zeng Zuoxiang；Zhang Yongjian
    申请人:Kunshan tianyang hot melt adhesive co ltd；Shanghai tianyang hot melt adhesive co ltd；Univ East China Science & Tech；
    IPC主号:
    专利说明:

    description
    Technical Field The present invention relates to a composite hot melt adhesive mesh film and a manufacturing method thereof. The composite hot melt adhesive network film produced in the context of the present invention is particularly suitable for connecting and assembling metallic materials, such as stainless steel, aluminum and copper, and nonpolar polymers, such as polyethylene and polypropylene.
    Background A composite hot melt adhesive network film is a corrosion-resistant and aging-resistant material with good thermal stability, good tensile, bursting and permeability properties, and is therefore often used in the clothing, automotive, electronics and other industries.
    CN 101 240 148 B discloses a process for producing a hot melt adhesive network film, which includes: melting a hot melt adhesive raw material; Adding a crystallization nucleating agent; Extruding, spinning, air flow application, rolling filaments into nets and other steps. The patent particularly relates to a method for producing a hot melt adhesive network film using a copolyamide hot melt adhesive as a raw material. CN 101 967 733 B discloses a process for producing a hot melt adhesive network film with a uniform pore size and stable grammage, which is produced, among other things, by controlling the melting temperature, spinning speed, infrared temperature, etc. of a hot melt adhesive. The patent relates in particular to a method for producing a hot-melt adhesive network film using a polyester hot-melt adhesive as a raw material. CN 103 059 792 B discloses a polyester-elastomer hot-melt adhesive for joining polar polymers and metallic materials, as well as a production method of the same. CN 1 699 491A also discloses a method of making a hot melt adhesive network film that is particularly applicable in a double-sided hot melt adhesive network film for use in installing calligraphy and paintings.
    With increasing industrialization, the connection of polar and non-polar materials in more and more areas is required in order to reduce costs and expand the field of application of the materials. However, conventional products related to hot-melt adhesive, such as mesh film or adhesive film, are currently generally used to connect polar materials, and their binding power is low with non-polar materials.
    Summary of the Invention It is an object of the present invention to overcome the disadvantages of the prior art and to provide a composite hot melt adhesive network film and a method of manufacturing the same. The composite hot melt adhesive network film produced within the scope of the present invention has a high binding force and can provide a lasting and stable connection, and is particularly suitable for connecting and assembling metallic materials such as stainless steel, aluminum and copper, and nonpolar polymers such as polyethylene and polypropylene.
    The present invention is based on the following technical concept:
    A composite hot melt adhesive network film composed by a polyamide hot melt adhesive network film and a polyolefin hot melt adhesive network film, wherein: a polyamide hot melt adhesive usable for producing the polyamide hot melt adhesive network film dynamic differential calorimetry final melting point of 116 ° C to 130 ° C and a melt flow index of 30 g / 10 min / 160 ° C to 50 g / 10 min / 160 ° C; a polyolefin hot melt adhesive which can be used to produce the polyolefin hot melt adhesive network film, comprises the following constituents in percent by mass: 8% to 15% mediator, 50% to 70% polyethylene, 3% to 10% other polyolefin, 0, 2% to 0.8% initiator, 0.7% to 1.3% silane coupling agent, 8% to 20% tackifier, 1.0% to 10% inorganic filler and 0.4% to 0.8% antioxidant.
    The mediator can be selected from high-density polyethylene grafted with maleic anhydride, low-density polyethylene grafted with maleic anhydride, in particular linear low-density polyethylene grafted with maleic anhydride and polypropylene grafted with maleic anhydride, and the grafting and anhydride rates of the maleic acid , Be 2%.
    The polyethylene can be selected from high-density polyethylene, low-density polyethylene and linear low-density polyethylene, and the melt flow index of the polyethylene can be between 0.9 q / 10 min / 190 ° C and 7 q / 10 min / 190 ° C be.
    The other polyolefin can be selected from ethylene-octene copolymer, polypropylene and polystyrene, and the melt flow index of the polyolefin can be between 1.6 g / 10 min / 190 ° C and 14 g / 10 min / 190 ° C.
    The initiator can be selected from benzoyl peroxide, di-tert-butyl peroxide and azobis (isobutyronitrile).
    The silane coupling agent can be selected from vinyltrioxysilane and γ-aminopropyltrimethoxysilane.
    The tackifier can be selected from rosin 145, terpene resin and hydrogenated carbon 5 resin. [0014] The inorganic filler can be selected from talc, kaolin and nanocalcium carbonate.
    [0015] The antioxidant can be selected from antioxidant 1010, antioxidant BHT and antioxidant 264.
    A manufacturing method for a composite hot melt adhesive mesh film using the polyamide hot melt adhesive and the polyolefin hot melt adhesive to produce the above composite hot melt adhesive mesh film as raw materials and performing the following steps:
    1) melting and pumping the polyamide hot melt adhesive and the polyolefin hot melt adhesive into a first spinneret and a second spinneret, which are independent of each other;
    2) Forming a first network film layer by: spraying the polyamide hot melt adhesive onto a conveyor belt at a first preset speed through the first spinneret using a first air stream, and heating through a first infrared heating zone;
    3) Forming a double-layer composite net film by: spraying the polyolefin hot melt adhesive onto the conveyor belt at a second preset speed through the second spinneret using a second air stream, mixing the polyolefin hot melt adhesive with the first net film layer, while the first mesh film is hot, and heating through a second infrared heating zone; and [0020] 4) cooling, crystallizing, curing and winding up the composite double layer network film to form the composite hot melt adhesive network film.
    [0021] The temperature of the first spinneret can be lower than that of the second spinneret. The temperature of the first spinneret can range from 170 ° C to 210 ° C and the temperature of the second spinneret can range from 180 ° C to 230 ° C.
    [0022] The first preset speed may be higher than the second preset speed. The first preset speed can be between 15 m / min and 30 m / min, and the second preset speed can be between 10 m / min and 25 m / min.
    The speed of the first air flow can be higher than the speed of the second air flow, and the respective speed of the first air flow and the second air flow can be in a range from 30 m / min to 120 m / min.
    The temperature of the first infrared heating zone can be higher than that of the second infrared heating zone. The temperature of the first infrared heating zone can range from 90 ° C to 120 ° C, and the temperature of the second infrared heating zone can range from 60 ° C to 90 ° C.
    The speed of the conveyor belt can be between 12 m / min and 20 m / min, and the distance between the first spinneret and the second spinneret can be from 0.7 m to 1.3 m.
    The present invention has the following advantageous effects: The composite hot melt adhesive network film and the manufacturing method thereof, which are provided by the invention, use a special composition so that the polar polyamide hot melt adhesive and the mediator-containing non-polar polyolefin are effective be melted; and the composite hot melt adhesive net film made according to the present invention has high bonding strength and can provide a long-lasting and stable bond, and is particularly suitable for joining and assembling metallic materials such as stainless steel, aluminum and copper, and non-polar materials such as polyethylene and polypropylene . Incidentally, the manufacturing process provided by the invention is completed in a manufacturing process set from raw material pretreatment to the final manufacturing of the hot melt adhesive net film product, thereby largely eliminating manufacturing errors, increasing manufacturing efficiency and reducing costs.
    Brief Description of the Drawings Figure 1 is a flow diagram of a manufacturing process provided by the present invention:
    S1: the polyamide hot melt adhesive was melted and then pumped into the first spinneret;
    S2: the polyamide hot melt adhesive was sprayed through the first spinneret onto the conveyor belt using an air stream to form a mesh film;
    S3: the mesh film was heated by a first infrared heating zone to form a first mesh film layer;
    S4 the polyolefin hot melt adhesive was melted and then pumped into the second spinneret;
    S5: the polyolefin hot melt adhesive was sprayed through the second spinneret using an air stream onto the conveyor belt and assembled with the first net film layer while the first net film layer was hot;
    S6: heating through a second infrared heating zone to form a double-layer mesh film;
    S7: The double layer mesh film was cooled, crystallized and hardened and wound up into a hot melt adhesive mesh film product.
    Detailed description
    Example 1 A composite hot melt adhesive network film was assembled using a polyamide hot melt adhesive network film and a polyolefin hot melt adhesive network film. The final DSC melting point (DSC = dynamic differential calorimetry) of the polyamide hot-melt adhesive was measured by means of a DSC method at 122 ° C., and the melt flow index was 30 g / 10 min / 160 ° C. The polyolefin hot melt adhesive includes the following components by mass percent:
    8% high density polyethylene grafted with maleic anhydride (grafting rate: 1%);
    50% high density polyethylene (melt flow index: 0.9 g / 10 min / 190 ° C);
    10% ethylene-octene copolymer (melt flow index: 1.6 g / 10 min / 190 ° C);
    0.2% benzoyl peroxide;
    1% vinyl trioxysilane;
    20% rosin 145;
    10% talc; and
    0.8% antioxidant 1010.
    A manufacturing process for the composite hot melt adhesive network film was carried out as follows: the polyamide hot melt adhesive and the polyolefin hot melt adhesive were melted and then pumped into a first and a second spinneret, the first and the second Spinneret were independent of each other; the two spinnerets were arranged above a conveyor belt, the second spinneret being arranged downstream of the first spinneret along a conveying direction of the conveyor belt, and the distance between the two spinnerets was 0.7 m; after switching on the conveyor belt (such as a steel belt), the conveyor speed of the conveyor belt was set to 12 m / min; the first spinneret was started, an internal temperature thereof was set to 170 ° C, and an air flow speed (such as in the form of compressed air) was set to 120 m / min so that the spinning speed using an air flow and a discharge pressure of the spinneret was 20 m / min. min was; the polyamide hot melt adhesive was sprayed onto the conveyor belt through the first spinneret using air flow to form a mesh film; the mesh film was heated by a first infrared heating zone at a temperature of 100 ° C to form a first mesh film layer, the first infrared heating zone could be located, for example, at a suitable location between the two spinnerets; the second spinneret was started, its internal temperature was set to 180 ° C, and the air flow speed (such as in the form of compressed air) was set to 85 m / min so that the spinning speed was 12 m / min, and the polyolefin hot melt adhesive was applied using air flow sprayed through the second spinneret onto the conveyor belt and assembled with the first net film layer, which was transported to the second spinneret while the first net film layer was hot, and then heated by a second infrared heating zone at a temperature of 60 ° C to form a double layer Form net film, wherein the second infrared heating zone could for example be arranged downstream of the second spinneret; and then the double layer composite mesh film was cooled, crystallized and hardened and wound up to form a hot melt adhesive mesh film end product which is used to bond metal and a non-polar material.
    The product obtained according to the composition and the manufacturing process in Example PAGE1 was identified as A.
    Example 2 A composite hot melt adhesive network film was assembled using a polyamide hot melt adhesive network film and a polyolefin hot melt adhesive network film. The DSC final melting point of the polyamide hot-melt adhesive was 116 ° C and the melt flow index was 50 g / 10 min / 160 ° C; the polyolefin hot melt adhesive includes the following components by mass percent:
    15% low density polyethylene grafted with maleic anhydride (grafting rate: 1.2%);
    60% linear low density polyethylene (melt flow index: 2 g / 10 min / 190 ° C);
    5% ethylene-octene copolymer (melt flow index: 3 g / 10 min / 190 ° C);
    0.4% di-tert-butyl peroxide;
    1.3% γ-aminopropyltrimethoxysilane;
    10% hydrogenated carbon 5 resin;
    7.7% nanocalcium carbonate; and
    0.6% 1010 antioxidant.
    A manufacturing process for the composite hot melt adhesive network film was carried out as follows: The polyamide hot melt adhesive and the polyolefin hot melt adhesive were melted and then pumped into a first and a second spinneret, the first and the second Spinneret were arranged independently and at a distance of 0.7 m from each other; after switching on the conveyor belt (such as a steel belt), the conveyor speed of the conveyor belt was set to 12 m / min; the first spinneret was started, an internal temperature of this was set to 170 ° C., the spinning speed was set to 20 m / min; the air flow rate (such as in the form of compressed air) was set at 120 m / min and the polyamide hot melt adhesive was sprayed onto the conveyor belt through the first spinneret using air flow to form a mesh film; the mesh film was heated by a first infrared heating zone at a temperature of 100 ° C to form a first mesh film layer; the second spinneret was started, its internal temperature was set to 180 ° C, the spinning speed was set to 12 m / min, the air flow speed (such as in the form of compressed air) was set to 85 m / min; and the polyolefin hot melt adhesive was sprayed onto the conveyor belt using air flow through the second spinneret and was assembled with the first mesh film layer which was transported to the second spinneret while the first mesh film layer was hot and then through a second infrared heating zone heated at a temperature of 60 ° C to form a double layer mesh film; and then the double layer composite mesh film was cooled, crystallized and hardened and wound up to form a hot melt adhesive mesh film end product which is used to bond metal and a non-polar material.
    The product obtained according to the composition and the manufacturing process in Example PAGE2 was identified as B.
    Example 3 A composite hot melt adhesive network film was assembled using a polyamide hot melt adhesive network film and a polyolefin hot melt adhesive network film. The DSC final melting point of the polyamide hot-melt adhesive was 130 ° C and the melt flow index was 45 g / 10 min / 160 ° C; the polyolefin hot melt adhesive includes the following components by mass percent:
    10% linear low density polyethylene grafted with maleic anhydride (grafting rate: 1%);
    65% low density polyethylene (melt flow index: 7 g / 10 min / 190 ° C);
    3% polystyrene (melt flow index: 10 g / 10 min / 190 ° C);
    0.8% azobis (isobutyronitrile);
    0.7% γ-aminopropyltrimethoxysilane;
    15% terpene resin;
    5% kaolin; and
    0.5% BHT antioxidant.
    A manufacturing process for the composite hot melt adhesive network film was carried out as follows: The polyamide hot melt adhesive and the polyolefin hot melt adhesive were melted and then pumped into a first and a second spinneret, the first and the second Spinneret were arranged independently and at a distance of 1.1 m from each other; after turning on the conveyor belt (such as a steel belt), the conveyor speed of the conveyor belt was set to 17 m / min; the first spinneret was started, its internal temperature was set to 190 ° C, the spinning speed was set to 23 m / min; the air flow rate (such as in the form of compressed air) was set at 115 m / min and the polyamide hot melt adhesive was sprayed onto the conveyor belt through the first spinneret using air flow to form a mesh film; the mesh film was heated by a first infrared heating zone at a temperature of 120 ° C to form a first mesh film layer; the second spinneret was started, the inside temperature of which was set at 210 ° C, the spinning speed was set at 16 m / min, the air flow speed (such as in the form of compressed air) was set at 90 m / min; and the polyolefin hot melt adhesive was sprayed onto the conveyor belt using air flow through the second spinneret and was joined to the first mesh film layer which was transported to the second spinneret while the first mesh film layer was hot and then through a second infrared heating zone heated at a temperature of 80 ° C to form a double layer mesh film; and then the double layer composite mesh film was cooled, crystallized and hardened and wound up to form a hot melt adhesive mesh film end product which is used to bond metal and a non-polar material.
    The product obtained according to the composition and the manufacturing process in Example PAGE3 was identified as C.
    Example 4 A composite hot melt adhesive network film was assembled using a polyamide hot melt adhesive network film and a polyolefin hot melt adhesive network film. The final DSC melting point of the polyamide hot-melt adhesive was 124 ° C. and the melt flow index was 35 g / 10 min / 160 ° C. the polyolefin hot melt adhesive includes the following components by mass percent:
    13% polyethylene grafted with maleic anhydride (grafting rate: 1.2%);
    70% low density polyethylene (melt flow index: 4 g / 10 min / 190 ° C);
    6% polypropylene (melt flow index: 14 g / 10 min / 190 ° C);
    0.7% benzoyl peroxide;
    0.9% vinyl trioxysilane;
    8% terpene resin;
    1% nanocalcium carbonate; and
    0.4% antioxidant 264.
    A manufacturing process for the composite hot melt adhesive network film was carried out as follows: The polyamide hot melt adhesive and the polyolefin hot melt adhesive were melted and then pumped into a first and a second spinneret, the first and the second Spinneret independently and at a distance of
    1.3 m apart; after switching on the conveyor belt (such as a steel belt), the conveyor speed of the conveyor belt was set to 20 m / min; the first spinneret was started, the internal temperature of this was set to 200 ° C., the spinning speed was set to 26 m / min; the air flow rate (such as in the form of compressed air) was set at 100 m / min and the polyamide hot melt adhesive was sprayed onto the conveyor belt through the first spinneret using air flow to form a mesh film; the mesh film was heated by a first infrared heating zone at a temperature of 110 ° C to form a first mesh film layer; the second spinneret was started, the temperature of which was set at 230 ° C, the spinning speed was set at 18 m / min, the air flow speed (such as in the form of compressed air) was set at 80 m / min; and the polyolefin hot melt adhesive was sprayed onto the conveyor belt using air flow through the second spinneret and was joined to the first mesh film layer which was transported to the second spinneret while the first mesh film layer was hot and then through a second infrared heating zone heated at a temperature of 90 ° C to form a double layer mesh film; and then the double layer composite mesh film was cooled, crystallized and hardened and wound up to form a hot melt adhesive mesh film end product which is used to bond metallic and a non-polar material.
    The product obtained according to the composition and the manufacturing process in Example PAGE4 was identified as D.
    Performance Test The hot melt adhesive net films obtained from the above examples were examined for their 180 degree peel force when they were hot pressed at 160 ° C under a pressure of 0.3 MPa for 120 seconds to PE / Aluminum, PP / aluminum, PE / stainless steel and PP / stainless steel, and the specific test results were shown in Table 1 below:
    Products 180 degree pull-off force (N / 25 mm)
    PE / aluminum PP / aluminum PE / stainless steel PP / stainless steel
    A 102 115 110 112 B 115 123 119 125 C. 110 117 113 119 D 113 119 117 120
    Table 1 Binding power of hot melt adhesive net films for various substrates It can be seen from the above table that the composite hot melt adhesive net films produced in the context of the present invention have a high bonding strength and can provide a lasting and stable connection, and they are particularly suitable for Join and assemble metallic materials such as stainless steel, aluminum and copper, and non-polar polymers such as polyethylene and polypropylene. The manufacturing process provided by the invention is completed in a single manufacturing process set from raw material pretreatment to final manufacturing of the hot melt adhesive net film product, thereby largely eliminating manufacturing defects, increasing manufacturing efficiency and reducing costs.
    权利要求:
    Claims (4)
    [1]
    Claims
    1. A composite hot melt adhesive network film composed of a polyamide hot melt adhesive network film and a polyolefin hot melt adhesive network film, wherein: a polyamide hot melt adhesive network adhesive used to produce the polyamide hot melt adhesive network film, a dynamic differential calorimetry Final melting point of 116 ° C to 130 ° C and a melt flow index of 30 g / 10 min / 160 ° C to 50 g / 10 min / 160 ° C; a polyolefin hot melt adhesive used to make the polyolefin hot melt adhesive network film comprising the following ingredients in percent by mass: 8% to 15% mediator, 50% to 70% polyethylene, 3% to 10% other polyolefin, 0, 2% to 0.8% initiator, 0.7% to 1.3% silane coupling agent, 8% to 20% tackifier, 1.0% to 10% inorganic filler and 0.4% to 0.8% antioxidant.
    2. The composite hot-melt adhesive network film according to claim 1, wherein the mediator is selected from the group consisting of high-density polyethylene grafted with maleic anhydride, low-density polyethylene grafted with maleic anhydride, in particular linear low-density polyethylene grafted with maleic anhydride, and grafted with maleic anhydride wherein the maleic anhydride has a grafting rate of 0.8% to 1.2%.
    3. composite hot melt adhesive network film according to one of claims 1 or 2, wherein the polyethylene is selected from the group consisting of high-density polyethylene, low-density polyethylene, in particular linear low-density polyethylene, and wherein the polyethylene has a melt flow index of 0.9 g / 10 min / 190 ° C to 7 g / 10 min / 190 ° C.
    4. composite hot melt adhesive network film according to one of claims 1 to 3, wherein the other polyolefin is selected from the group consisting of ethylene-octene copolymer, polypropylene and polystyrene, and wherein the other polyolefin has a melt flow index of 1.6 g / 10 min / 190 ° C to 14g / 10 min / 190 ° C.
    5. composite hot melt adhesive network film according to any one of claims 1 to 4, wherein the initiator is selected from the group consisting of benzoyl peroxide, di-tert-butyl peroxide and azobis (isobutyronitrile).
    6. composite hot melt adhesive network film according to any one of claims 1 to 5, wherein the inorganic filler is selected from the group consisting of talc, kaolin and nanocalcium carbonate.
    7. Production method for producing a composite hot melt adhesive network film according to one of claims 1 to 6 using the polyamide hot melt adhesive and the polyolefin hot melt adhesive as raw materials, and carrying out the following steps:
    1) melting and respectively pumping the polyamide hot melt adhesive and the polyolefin hot melt adhesive into a first spinneret and a second spinneret, which are independent of one another;
    [2]
    2) forming a first mesh film layer by: spraying the polyamide hot melt adhesive onto a conveyor belt at a first preset speed through the first spinneret using a first air stream, and heating through a first infrared heating zone;
    [3]
    3) Form a double layer composite mesh film by spraying the polyolefin hot melt adhesive onto the conveyor belt at a second preset speed through the second spinneret using a second air stream, assembling the polyolefin hot melt adhesive with the first mesh film layer during the first mesh film is hot, and heating through a second infrared heating zone; and
    [4]
    4) Cooling, crystallizing, curing and winding up the double-layer composite mesh film to form the composite hot melt adhesive mesh film.
    8. The manufacturing method of claim 7, wherein: the first spinneret has a temperature that is less than a temperature of the second spinneret; the first preset speed is higher than the second preset speed; the first airflow has a higher speed than a speed of the second airflow; and the first infrared heating zone has a temperature that is higher than a temperature of the second infrared heating zone.
    9. The manufacturing method according to claim 8, wherein the first spinneret has a temperature of 170 ° C to 210 ° C, and the second spinneret has a temperature of 180 ° C to 230 ° C.
    10. The manufacturing method according to claim 8 or 9, wherein the first preset speed is 15 m / min to 30 m / min, and the second preset speed is 10 m / min to 25 m / min.
    11. The production method according to any one of claims 8 to 10, wherein the respective speed of the first air flow and the speed of the second air flow is in a range from 30 m / min to 120 m / min.
    12. The production method according to any one of claims 8 to 11, wherein the first infrared heating zone has a temperature of 90 ° C to 120 ° C, and the second infrared heating zone has a temperature of 60 ° C to 90 ° C.
    13. The production method according to claim 7, wherein a distance between the first spinneret and the second spinning nozzle is 0.7 m to 1.3 m, and the conveyor belt has a conveying speed of 12 m / min to 20 m / min.
    S1 $ 2
    S4
    S3
    S5
    S6
    S7
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    CN103059792B|2012-12-25|2014-08-20|广州鹿山新材料股份有限公司|Polyester elastomer hot melt adhesives and preparation method thereof for bonding polar polymers and metallic materials|DE202016103409U1|2016-06-28|2017-09-29|Rehau Ag + Co|Edging strip for furniture|
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    CN110699013B|2019-11-04|2021-03-23|巢进化学有限公司|Hot melt adhesive for bonding metal and plastic and preparation method thereof|
    CN111925538B|2020-06-22|2021-03-16|常州百佳年代薄膜科技股份有限公司|Nanoscale adhesive film micro-segment, self-reinforced adhesive film, preparation process and photovoltaic module|
    法律状态:
    2017-09-29| PCAR| Change of the address of the representative|Free format text: NEW ADDRESS: BELLERIVESTRASSE 203 POSTFACH, 8034 ZUERICH (CH) |
    2020-07-31| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    CN201410795228|2014-12-19|
    CN201510106668.9A|CN104711772B|2014-12-19|2015-03-12|A kind of composite hot melt adhesive nethike embrane and its preparation technology|
    PCT/CN2015/097640|WO2016095823A1|2014-12-19|2015-12-16|Composite hot-melt adhesive net film and manufacturing process thereof|
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