CN105647434A - Hot-melt glue film for combining polypropylene cellular boards and preparing method of hot-melt glue film - Google Patents
Hot-melt glue film for combining polypropylene cellular boards and preparing method of hot-melt glue film Download PDFInfo
- Publication number
- CN105647434A CN105647434A CN201610072073.0A CN201610072073A CN105647434A CN 105647434 A CN105647434 A CN 105647434A CN 201610072073 A CN201610072073 A CN 201610072073A CN 105647434 A CN105647434 A CN 105647434A
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- Prior art keywords
- polypropylene
- ethylene
- hot melt
- melt adhesive
- hot
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 58
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 54
- -1 polypropylene Polymers 0.000 title claims abstract description 35
- 230000001413 cellular effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000003292 glue Substances 0.000 title abstract description 10
- 239000012943 hotmelt Substances 0.000 title abstract 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000077 silane Inorganic materials 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 16
- 229920001577 copolymer Polymers 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 238000004898 kneading Methods 0.000 claims abstract description 11
- 238000007766 curtain coating Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004831 Hot glue Substances 0.000 claims description 28
- 150000001875 compounds Chemical class 0.000 claims description 21
- 229920006026 co-polymeric resin Polymers 0.000 claims description 11
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000002318 adhesion promoter Substances 0.000 abstract 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 238000007334 copolymerization reaction Methods 0.000 abstract 1
- 238000005469 granulation Methods 0.000 abstract 1
- 230000003179 granulation Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 235000019621 digestibility Nutrition 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000004500 asepsis Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/10—Homopolymers or copolymers of propene
- C09J123/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a hot-melt glue film for combining polypropylene cellular boards and a preparing method of the hot-melt glue film. The preparing method comprises the steps that ternary co-polypropylene with a low melting point, an ethylene-propylene copolymer or an ethylene-butylene copolymer, C5/C9 copolymerization resin, high-molecular-weight PP wax and an antioxidant are put into a kneading machine according to a certain proportion for smelting treatment, after the system is smelted, a closure silane adhesion promoter is added multiple times, kneading treatment is carried out, then water ring granulation is carried out, the materials are extruded and then subjected to curtain coating treatment, and the hot-melt glue film is prepared. In the matrix, ternary co-polypropylene is adopted for blending modification, and thus the requirement of consumers for carrying out combination under the situation without softening deformation of PP cellular boards can be met; the low-temperature flexibility of hot-melt glue can be improved with the ethylene-propylene copolymer or the ethylene-butylene copolymer; the adhesion strength can be improved through the closure silane adhesion promoter; the hot-melt glue film prepared from the formula system is good in film forming performance and fast in crystallization, and thus can be easily prepared with the curtain coating process technology, lining paper is not needed, cost is reduced, and popularization is facilitated.
Description
Technical field
The present invention relates to polypropylene cellular board compound hot melt adhesive film, be specifically related to polypropylene cellular board compound hot melt adhesive film and preparation method thereof.
Background technology
Functional, light material is the theme of current new material, and more low-gravity polypropylene (PP) plastics collocation honeycomb texture will bring the application performance of more excellence, is with a wide range of applications.
PP cellular board is the panel relatively thin by two pieces, is bonded in honeycomb core two sides one layer thicker securely and the sheet material made, also known as honeycomb sandwich construction. This structure, due to the advantage such as lightweight Gao Gang, asepsis environment-protecting, damping cold-resistant, sound-insulating, moisture-proof heat-insulation, is widely used in interior trim position, the electromotor Turnover Boxes etc. such as the boot-lid panel of medium-to-high grade passenger car, baggage-compartment partition, baggage compartment carpet substrate, side wall decorative board, ceiling. Such as, current auto parts and components Turnover Box is mainly produced by Germany, Japan, though domestic enterprise starts to walk, but comes still without the marketization 2 years more.
A big technical barrier prepared by PP cellular board is compound. Use traditional glue, although can compound, but on the one hand owing to not meeting the theory of environmental protection; Glue mostly is curing type system on the one hand, and low temperature embrittlement ratio is more serious, and performance cannot ensure. And the product of PUR type is at present still without the glue being suitable for five layers of combination process.
1) hot melt adhesive film of modified EVA type, although adhesion strength is suitable for client with combination process, but cannot promote due to low softening point fatal for EVA.
2) although the TPE of encapsulated type may be used for cladding PP material, but this technique mainly adopts the method that injection moulding is encapsulated, and encapsulated temperature is high, is coated with, is not suitable for the continuous process of laminating machine under PP soft state. Additionally, TPE types of material film property is poor, even if the TPE of oil-filled property, the speed of casting films is still very slow, it is impossible to the marketization.
Summary of the invention
The present invention is directed to the problems referred to above, it is provided that a kind of polypropylene cellular board compound hot melt adhesive film and preparation method thereof is to solve the problems referred to above.
For solving above-mentioned technical problem, the present invention adopt a technical scheme be: polypropylene cellular board compound hot melt adhesive film, including the material of following weight fraction: the ternary polymerized polypropylene of the low melting point of 40% ~ 70%, 20% ~ 40% ethylene-propylene or ethylene-butene copolymer, 5% ~ 20% C5/C9 copolymer resins, the high molecular PP wax of 2% ~ 15%, the closure silane attaches power accelerator of 2 �� ~ 8 �� and 1 �� ~ 2 �� antioxidant.
Preferred as such scheme, the fusing point of described ternary polymerized polypropylene is 90-120 DEG C.
The preparation method of polypropylene cellular board compound hot melt adhesive film, ternary polymerized polypropylene by the low melting point of 40% ~ 70%, the ethylene-propylene of 20% ~ 40% or ethylene-butene copolymer, the C5/C9 copolymer resins of 5% ~ 20%, the high molecular PP wax of 2% ~ 15% and 1 �� ~ 2 �� antioxidant be placed in kneader and carry out banburying process, after system is melted, repeatedly add closure silane attaches power accelerator and carry out kneading process, kneading complete after discharging and carry out water ring pelletize process make hot melt adhesive tablet, hot melt adhesive tablet is carried out after screw extruder is extruded curtain coating process and makes hot melt adhesive film.
Preferred as such scheme, the total amount of the closure silane attaches power accelerator repeatedly added is 2 �� ~ 8 ��, and the amount of the closure silane attaches power accelerator every time added is identical.
Preferred as such scheme, kneading time 5 ~ 8min when kneading processes.
The invention has the beneficial effects as follows:
1) matrix adopts ternary polymerization low melting point polypropylene blending modified, modified PUR can meet 80 DEG C of applied environment requirements do not come unglued, again can 150 ~ 160 DEG C of firm compounds of temperature range, it is possible to meet client and carry out compound when PP cellular board not softening transform.
2) present invention adopts ethylene-propylene or ethylene-butene copolymer, it is possible to improve the low temperature flexibility of PUR, the problem solving current product cold cracking.
3) C5/C9 copolymer resins, high molecular PP wax imparting PUR have good initial bonding strength and base material digestibility, polypropylene (PP) material of low-surface-energy there is splendid digestibility, material surface, without putting the surface treatments such as dizzy, plasma, reduces operation, also reduces cost simultaneously.
4) closure silane attaches power accelerator can be bonded with the inorganic reinforcing filler in PP cellular board, improves bonding strength.
5) hot melt adhesive film of this formula system is due to good film-forming property, crystallization soon, is beneficial to employing casting technique and produces glued membrane, it is not necessary to lining paper, cost reduce, are beneficial to popularization.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.
Polypropylene cellular board compound hot melt adhesive film, including the material of following weight fraction: the ternary polymerized polypropylene of the low melting point of 40% ~ 70%, 20% ~ 40% ethylene-propylene or ethylene-butene copolymer, 5% ~ 20% C5/C9 copolymer resins, the high molecular PP wax of 2% ~ 15%, the closure silane attaches power accelerator of 2 �� ~ 8 �� and 1 �� ~ 2 �� antioxidant.
Wherein, the fusing point of ternary polymerized polypropylene is 90-120 DEG C.
The preparation method of polypropylene cellular board compound hot melt adhesive film, ternary polymerized polypropylene by the low melting point of 40% ~ 70%, the ethylene-propylene of 20% ~ 40% or ethylene-butene copolymer, the C5/C9 copolymer resins of 5% ~ 20%, the high molecular PP wax of 2% ~ 15% and 1 �� ~ 2 �� antioxidant be placed in kneader and carry out banburying process, after system is melted, four addition total amounts are divided to be the closure silane attaches power accelerator of 2 �� ~ 8 �� and carry out kneading process, mediate after 5 ~ 8min discharging and carry out water ring pelletize and process and make hot melt adhesive tablet, hot melt adhesive tablet is carried out after screw extruder is extruded curtain coating process and makes hot melt adhesive film.
Wherein, the amount of the closure silane attaches power accelerator every time added is identical.
Embodiment one:
Polypropylene cellular board compound hot melt adhesive film, including the material of following weight fraction: the ternary polymerized polypropylene of the low melting point of 50%, 30% ethylene-propylene or ethylene-butene copolymer, the C5/C9 copolymer resins of 15%, the closure silane attaches power accelerator of 5 �� and 2 �� antioxidant.Surplus is high molecular PP wax.
Embodiment two:
Polypropylene cellular board compound hot melt adhesive film, including the material of following weight fraction: the ternary polymerized polypropylene of the low melting point of 70%, 20% ethylene-propylene or ethylene-butene copolymer, the C5/C9 copolymer resins of 5%, the closure silane attaches power accelerator of 8 �� and 1 �� antioxidant. Surplus is high molecular PP wax.
Embodiment three:
Polypropylene cellular board compound hot melt adhesive film, including the material of following weight fraction: the ternary polymerized polypropylene of the low melting point of 40%, 30% ethylene-propylene or ethylene-butene copolymer, the C5/C9 copolymer resins of 20%, the closure silane attaches power accelerator of 8 �� and 2 �� antioxidant. Surplus is high molecular PP wax.
Embodiment four:
Polypropylene cellular board compound hot melt adhesive film, including the material of following weight fraction: the ternary polymerized polypropylene of the low melting point of 40%, 40% ethylene-propylene or ethylene-butene copolymer, the C5/C9 copolymer resins of 10%, the closure silane attaches power accelerator of 8 �� and 2 �� antioxidant. Surplus is high molecular PP wax.
For a person skilled in the art; still the technical scheme described in foregoing embodiments can be modified; or wherein portion of techniques feature is carried out equivalent replacement; all within the spirit and principles in the present invention; any amendment of being made, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (5)
1. polypropylene cellular board compound hot melt adhesive film, it is characterized in that, including the material of following weight fraction: the ternary polymerized polypropylene of the low melting point of 40% ~ 70%, 20% ~ 40% ethylene-propylene or ethylene-butene copolymer, 5% ~ 20% C5/C9 copolymer resins, the high molecular PP wax of 2% ~ 15%, the closure silane attaches power accelerator of 2 �� ~ 8 �� and 1 �� ~ 2 �� antioxidant.
2. polypropylene cellular board compound hot melt adhesive film as claimed in claim 1, it is characterised in that the fusing point of described ternary polymerized polypropylene is 90-120 DEG C.
3. the preparation method of polypropylene cellular board compound hot melt adhesive film, it is characterized in that, ternary polymerized polypropylene by the low melting point of 40% ~ 70%, the ethylene-propylene of 20% ~ 40% or ethylene-butene copolymer, the C5/C9 copolymer resins of 5% ~ 20%, the high molecular PP wax of 2% ~ 15% and 1 �� ~ 2 �� antioxidant be placed in kneader and carry out banburying process, after system is melted, repeatedly add closure silane attaches power accelerator and carry out kneading process, kneading complete after discharging and carry out water ring pelletize process make hot melt adhesive tablet, hot melt adhesive tablet is carried out after screw extruder is extruded curtain coating process and makes hot melt adhesive film.
4. the preparation method of polypropylene cellular board compound hot melt adhesive film as claimed in claim 3, it is characterised in that the total amount of the closure silane attaches power accelerator repeatedly added is 2 �� ~ 8 ��, and the amount of the closure silane attaches power accelerator every time added is identical.
5. the preparation method of polypropylene cellular board compound hot melt adhesive film as claimed in claim 3, it is characterised in that kneading time 5 ~ 8min when kneading processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072073.0A CN105647434B (en) | 2016-02-02 | 2016-02-02 | Compound hot melt adhesive film of polypropylene cellular board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072073.0A CN105647434B (en) | 2016-02-02 | 2016-02-02 | Compound hot melt adhesive film of polypropylene cellular board and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105647434A true CN105647434A (en) | 2016-06-08 |
| CN105647434B CN105647434B (en) | 2017-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610072073.0A Active CN105647434B (en) | 2016-02-02 | 2016-02-02 | Compound hot melt adhesive film of polypropylene cellular board and preparation method thereof |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273731A (en) * | 2016-08-04 | 2017-01-04 | 合肥杰迈特汽车新材料有限公司 | A kind of automotive trim water-proof environmental protection type honeycomb composite cardboard and preparation method thereof |
| CN106379422A (en) * | 2016-10-12 | 2017-02-08 | 杭州华聚复合材料有限公司 | Logistic vehicle van and assembling structure for skirt assembly thereof |
| CN109321147A (en) * | 2018-08-24 | 2019-02-12 | 重庆诚惠丰胶粘制品有限公司 | A kind of environment-friendly hot-melt glue film and preparation method for nonpolarity material bonding |
| CN112852346A (en) * | 2020-12-25 | 2021-05-28 | 上海邦中新材料有限公司 | High-adhesion-strength hot melt adhesive for polypropylene plastic honeycomb plate and preparation method thereof |
| CN116476356A (en) * | 2023-06-20 | 2023-07-25 | 石狮佳南热熔胶有限公司 | Prevent fold hot melt adhesive film and cooling device for hot melt adhesive film production |
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| WO2002000807A1 (en) * | 2000-06-24 | 2002-01-03 | Seong Il Chemical Co., Ltd. | Polyolefin-based hot melt adhesive for deflection yoke |
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| WO2013003196A1 (en) * | 2011-06-27 | 2013-01-03 | H.B. Fuller Company | Propylene-alpha-olefin polymers, hot melt adhesive compositions that include propylene-alpha-olefin polymers and articles that include the same |
| CN104419349A (en) * | 2013-09-10 | 2015-03-18 | 杭州邦林热熔胶有限公司 | Hot melt adhesive for food and daily chemical product bottle caps and preparation method of hot melt adhesive |
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- 2016-02-02 CN CN201610072073.0A patent/CN105647434B/en active Active
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273731A (en) * | 2016-08-04 | 2017-01-04 | 合肥杰迈特汽车新材料有限公司 | A kind of automotive trim water-proof environmental protection type honeycomb composite cardboard and preparation method thereof |
| CN106273731B (en) * | 2016-08-04 | 2018-05-25 | 合肥杰迈特汽车新材料有限公司 | A kind of automotive trim water-proof environmental protection type honeycomb composite cardboard and preparation method thereof |
| CN106379422A (en) * | 2016-10-12 | 2017-02-08 | 杭州华聚复合材料有限公司 | Logistic vehicle van and assembling structure for skirt assembly thereof |
| CN106379422B (en) * | 2016-10-12 | 2019-02-05 | 杭州华聚复合材料有限公司 | Logistic car compartment and its skirt general assembly structure |
| CN109321147A (en) * | 2018-08-24 | 2019-02-12 | 重庆诚惠丰胶粘制品有限公司 | A kind of environment-friendly hot-melt glue film and preparation method for nonpolarity material bonding |
| CN112852346A (en) * | 2020-12-25 | 2021-05-28 | 上海邦中新材料有限公司 | High-adhesion-strength hot melt adhesive for polypropylene plastic honeycomb plate and preparation method thereof |
| CN116476356A (en) * | 2023-06-20 | 2023-07-25 | 石狮佳南热熔胶有限公司 | Prevent fold hot melt adhesive film and cooling device for hot melt adhesive film production |
| CN116476356B (en) * | 2023-06-20 | 2023-09-15 | 石狮佳南热熔胶有限公司 | Prevent fold hot melt adhesive film and cooling device for hot melt adhesive film production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105647434B (en) | 2017-10-03 |
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Denomination of invention: Hot-melt adhesive film for polypropylene honeycomb plate composite and its preparation method Effective date of registration: 20221230 Granted publication date: 20171003 Pledgee: Pinghu Rural Commercial Bank of Zhejiang, Limited by Share Ltd. Pledgor: PINGHU ZHANPENG HOT MELT ADHESIVE WEB & FILM Co.,Ltd. Registration number: Y2022980029907 |
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Granted publication date: 20171003 Pledgee: Pinghu Rural Commercial Bank of Zhejiang, Limited by Share Ltd. Pledgor: PINGHU ZHANPENG HOT MELT ADHESIVE WEB & FILM Co.,Ltd. Registration number: Y2022980029907 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |