KR20050107560A - Sheet composition and its sheet for increaing stifness and antivibration of vehicle body - Google Patents
Sheet composition and its sheet for increaing stifness and antivibration of vehicle body Download PDFInfo
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J5/18—Manufacture of films or sheets
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/00—Use of organic ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
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- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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Abstract
본 발명은 차체의 구조적 취약부위에 적용하여 차체의 내충격성을 향상시킴과 동시에 제진기능도 함께 갖는 차량용 내충격성 및 제진성을 갖는 시트용 조성물 및 그 시트에 관한 것이다. The present invention relates to a composition for a seat having a shock resistance and vibration damping effect for a vehicle having a vibration damping function while improving the impact resistance of the vehicle body by applying it to structurally weak areas of the vehicle body and the seat.
이소프렌고무 변성 에폭시 레진(Isoprene Rubber Modified Epoxy Resin)을 주재료로 하여 거기에 공지의 차체 강도 보강 및 제진성능을 갖는 비스페놀(Bisphenol)-A형 에폭시수지, NBR(Nitril Butadiene Rubber)변성 에폭시수지 및 CTBN 변성 에폭시수지, PVC 수지, 잠재성 경화제, 다공질의 충전제, 착색제, 흡습제, 열안정제, 가공부여제, 충전제 등을 소정 비율로 혼화함을 특징으로 한 차체의 강성 부여 및 제진성을 동시에 부여하는 시트 조성물 및 그 조성물에 의한 시트에 관한 것으로, 이 조성물 시트를 차체에 부착하게 되면 차체의 주조적 취약부위를 강하게 만들어 주어 내충격성을 향상시킴은 물론 동시에 다공질의 미세 기포가 형성되어 있으므로 차체의 진동제어 기능도 부여하게 되는 효과가 있다.Bisphenol-A type epoxy resin, NBR (Nitril Butadiene Rubber) modified epoxy resin, and CTBN modified resin, which are made of isoprene rubber modified epoxy resin, and which have known body strength reinforcement and vibration damping performance. Epoxy resin, PVC resin, latent hardener, porous filler, colorant, moisture absorbent, heat stabilizer, processing imparting agent, filler, etc. And a sheet formed by the composition. When the composition sheet is attached to the vehicle body, the cast weak part of the vehicle body is strengthened to improve impact resistance, and at the same time, a porous microbubble is formed, and thus the vibration control function of the vehicle body is performed. There is also an effect to be given.
Description
본 발명은 차체의 구조적 취약부에 적용하여 차체에 고강성의 특성과 함께 제진성도 동시에 부여하는 차량용 내충격성 및 제진성 시트의 조성물 및 그 조성물에 의한 시트에 관한 것으로서, 특히 점탄성과 고강성을 갖는 주재료에 진동을 저하시켜주는 다공질 충전제를 첨가하므로서 차량에 내충격 특성과 제진 특성을 동시에 부여하는 차량용 내충격성 및 제진성 시트의 조성물 및 그 조성물에 의한 시트에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a composition for impact resistance and vibration damping seats for vehicles that are applied to structurally weak parts of a vehicle body and to provide vibration damping property with high rigidity at the same time. The present invention relates to a composition of an impact resistant and vibration damping sheet for a vehicle and a sheet formed by the composition, which simultaneously impart vibrational resistance to the main material and impart impact resistance and vibration damping properties to the vehicle.
현재까지는 차량에서 발생되는 진동을 예방하기 위한 방진제(제진재)나 차체 패널을 보강하기 위한 보강재들이 각각의 용도로 개발된 예는 있으나 차체패널의 강성과 제진성(방진성)을 동시에 부여하도록 된 조성물이나 시트 제품은 없었고 그 한 예로는 아스팔트계 수지를 주성분으로 하는 차량패널 부착용 아스팔트계 시트가 있으나, 이러한 시트는 방진 기능만을 갖고 있으므로 적용 부위에 한계가 있고, 특히 차체 적용시 점착력이 부족하여 수직 외판에 부착하기 위해서는 별도의 점착제를 도포하거나 테이프를 이용하여 별도로 붙여주어야만 하는 문제가 있으며, 더욱이 굴곡이 다양한 차체부위에는 적용이 어려운 단점을 가지고 있었다.Until now, there have been cases in which anti-vibration agents (vibration dampers) and reinforcement materials for reinforcing body panels have been developed for each purpose, but to provide both rigidity and vibration damping (vibration resistance) of the body panels simultaneously There was no composition or sheet products, and one example is asphalt-based sheet for vehicle panel attachment, which is mainly composed of asphalt-based resin. However, these sheets have a dustproof function and thus have limitations in application areas. In order to attach to the outer plate there is a problem that you need to apply a separate adhesive or separately attached using a tape, and also had a disadvantage that it is difficult to apply to various body parts of the bend.
또한 차체의 강성, 즉 내충격성을 부여하기 위한 에폭시 수지계의 차체 보강재가 있으나 이 경우는 차체 보강용 외에 재진효과는 전혀 없고 더구나 경화제인 디시안디아미드에 의해 가열경화시 수축현상이 발생되는 결점이 있었고 그와 같은 수축현상을 예방하기 위해 시트의 두께를 두껍게 하여 차체 패널에 부착하게 되면 시트의 휨현상(Dent)과 뒤틀림현상이 발생하게 되는 결점이 있었다.In addition, there is an epoxy resin body reinforcement material to give the rigidity of the car body, that is, impact resistance. However, in this case, there is no seismic effect in addition to the car body reinforcement. In order to prevent such shrinkage, when the sheet is thickened and attached to the vehicle body panel, there is a defect in that the sheet is warped and distorted.
본원 발명은 이상과 같은 종래의 차량패널의 강성보강과 제진성 부여에 따른 결점과 강성과 재진성을 동시에 부여할 수 없는 결점을 전면 개량하여 차체패널에 보강성과 방진성을 동시에 부여하면서도 종래의 차량 보강제와 제진재의 결점을 개선한 시트 조성물 및 그 조성물에 의한 시트를 제공코저 하는 것으로서, 통상의 혼합 에폭시 수지류에 의해 차체에 고도의 강성을 부여하되, 접착성 및 점탄성을 동시에 갖는 액상 이소프렌 고무 변성 에폭시수지와 섬유상 구조인 셀룰로스화이버 및 다공질의 충전제를 첨가하므로서 액상 이소프렌고무 변성 에폭시에 의해 접착성과 점탄성을 부여하면서 셀룰로스화이버에 의한 섬유상 구조와 다공질 충전제에 의해 발생되는 기포현상(Cell)에 의하여 차량의 주행중에 발생되는 진동까지도 제어할 수 있는 기능을 갖게 한 차량에 강도 및 제진성을 부여하는 시트 조성물과 그것에 의한 시트를 제공코저 하는 것으로 이를 실례를 들어 상세히 설명하면 다음과 같다.The present invention improves the defects due to the stiffness reinforcement and vibration damping of the conventional vehicle panel as described above and the defects that cannot impart stiffness and reproducibility at the same time, thereby giving both the reinforcement and the dustproofness to the vehicle panel at the same time. In order to provide a sheet composition and a sheet according to the composition that improve the defects of the vibration damping material, liquid isoprene rubber modified to give a high rigidity to the vehicle body by the usual mixed epoxy resins, but at the same time have adhesiveness and viscoelasticity By adding epoxy resin, fibrous cellulose fiber and porous filler, it gives adhesiveness and viscoelasticity by liquid isoprene rubber-modified epoxies, and it is possible to improve the vehicle's ability by the cell structure caused by the fibrous structure caused by cellulose fiber and porous filler. Function to control even vibration generated while driving To provide a sheet composition and a sheet thereby providing a strength and vibration damping properties to the vehicle having a description will be described in detail by way of example as follows.
본 발명은 통상의 점착성, 접착성 및 강도가 우수하면서 상온에서 액체상태인 비스페놀(Bisphenol)-A형 에폭시수지와 통상의 제진성을 갖는 NBR(Nitril Butadiene Rubber)변성 에폭시수지와, 통상의 차체 금속패널과의 점착성과 접착성이 우수한 CTBN(Carboxy-1-Terminated Batadine Acrylonitrile Copolymer)변성 에폭시수지와, 통상의 에폭시수지용 잠재성 경화제인 디시안디아미드(Dicyandiamide)(DICY)와, 흡습제인 산화칼슘(CaO)과, 일반적인 충전제인 중질 탄산칼슘(CaCO3)과, 열안정제인 Ba-Zn과, 통전 및 도전제인 카본 블랙으로 된 통상의 차체 패널강도 보강재에 있어서,The present invention is bisphenol (A) -type epoxy resin in a liquid state at room temperature with excellent adhesiveness, adhesiveness and strength, and NBR (Nitril Butadiene Rubber) modified epoxy resin having normal vibration damping properties, and a conventional car body metal. CTBN (Carboxy-1-Terminated Batadine Acrylonitrile Copolymer) modified epoxy resin with excellent adhesiveness and adhesion to panels, dicyandiamide (DICY), a latent curing agent for ordinary epoxy resins, and calcium oxide (hygroscopic) In the normal bodywork panel strength reinforcement of CaO), heavy calcium carbonate (CaCO3), which is a general filler, Ba-Zn, which is a heat stabilizer, and carbon black, which is an electric current and a conductive agent,
상기 차체 패널강도 보강재 전체 중량에 대하여 접착성 및 점탄성 특성이 우수하면서, 상기 각종 충전제와 상용성이 우수한 투명성 액상 이소프렌고무(Liquid isoprene rubber) 변성 에폭시수지 5~12wt%와, 강도 보강제, 점착제 및 제진재 등에 사용되는 가공성 부여제인 폴리염화비닐수지(Poly vinyl chloride resin) 10~20wt%와, 다공질의 충전제인 글라스버블 8~13wt%와, 섬유상 구조로 되어 있는 클랙 방지제인 셀룰로스화이버 1~6wt%를 각각 첨가하여 50℃~70℃의 온도로 가열하면서 완전 용융 혼합될 때까지 혼련 교반하여 컴파운드를 얻고, 그 얻어진 컴파운드로 통상의 압출방법에 의해 시트로 압출한 것을 차체 적용부위 패널의 모양에 따라 프레스로 절단한 후 패널에 부착할 면을 이형지로 보호하였다가 차제의 패널에 적용시에 이형지를 제거 후 부착한 다음, 차량 전착 도장시의 오븐내에서 오븐 열에 의해 패널에 접착 경화되어 차체에 고강성 및 제진기능을 부여하게 하는 것이다.5-12 wt% of transparent liquid isoprene rubber-modified epoxy resin having excellent adhesiveness and viscoelasticity with respect to the total weight of the vehicle body panel strength reinforcing material and excellent compatibility with the various fillers, strength reinforcing agent, adhesive and agent 10 to 20 wt% of polyvinyl chloride resin, which is a workability imparting agent for real materials, 8 to 13 wt% of glass bubble, which is a porous filler, and 1 to 6 wt% of cellulose fiber, which is a crack prevention agent having a fibrous structure, Compounds were obtained by kneading and stirring until complete melt mixing while adding to each other and heating to a temperature of 50 ° C. to 70 ° C., and extruding the obtained compounds into sheets by a conventional extrusion method according to the shape of the vehicle body application panel. After cutting with a sheet, the surface to be attached to the panel is protected with a release paper, and when applied to a vehicle panel, the release paper is removed and attached, and then the vehicle is deposited. It is adhesive hardening to a panel by oven heat in an oven at the time of coating, and gives high rigidity and a damping function to a vehicle body.
이상과 같이 구성되는 본 발명 차체의 강도 및 제진성을 부여하는 시트용 조성물에서는 접착성과 점탄성을 부여하는 이소프렌 고무변성 에폭시수지를 주재료로첨가하였으므로 접착성 및 점탄성이 우수하여 본 발명에 따른 시트는 차체패널에 부착성이 우수하면서도 점탄성이 우수하여 클랙이나 박리현상이 일어나지 않게 하는 특징이 있는데, 여기에서는 그것을 5wt% 미만 첨가시에는 점탄성 특성이 저하되는 성질이 있고, 12wt% 이상 첨가시에는 점도가 저하되고 안정성이 낮아지는 문제점이 있게 된다. In the composition for a sheet which gives the strength and vibration damping property of the vehicle body of the present invention constituted as described above, since isoprene rubber-modified epoxy resin which gives adhesiveness and viscoelasticity is added as a main material, the sheet according to the present invention is excellent in adhesiveness and viscoelasticity. It has excellent adhesiveness to the panel and excellent viscoelasticity to prevent cracking or peeling phenomenon. In this case, when it is added less than 5wt%, the viscoelastic property is degraded, and when it is added 12wt% or more, the viscosity decreases. And the stability is lowered.
본 발명에서 또 하나의 특징은 폴리염화 비닐수지를 사용하므로서, 본원에서 사용하는 에폭시수지계열의 가열 경화시 잠재성 경화제인 디시안디아미드에 의해 수축되는 성질을 예방하기 위해 차량패널에 시트를 두껍게 (4T) 부착 사용하더라도 차량의 패널이 휘거나(Dent) 뒤틀리는 등 변형이 일어나지 않게 하는데, 그 첨가량이 15wt%미만일 경우에는 휨현상의 예방효과가 적으며, 25wt%를 초과하게 되면 강도와 저장안정성이 급격히 떨어지는 현상을 보이므로, 그 첨가량은 15~25wt%로 하는 것이 가장 바람직하다.Another feature of the present invention is to use a polyvinyl chloride resin, so that the sheet is thickened on the vehicle panel to prevent the shrinkage by the dicyandiamide as a latent curing agent during heat curing of the epoxy resin series used herein. 4T) Even if it is attached, the panel of the vehicle is not bent or warped, and deformation does not occur. If the added amount is less than 15wt%, there is little effect of warping phenomenon, and if it exceeds 25wt%, the strength and storage stability are rapidly increased. Since the falling phenomenon, the addition amount is most preferably 15 to 25wt%.
본원에서 또 다른 하나의 특징은 다공질 충전제인 글라스버블을 사용하는 것으로서, 이는 고강성과 함께 또 하나의 주된 기능인 제진기능을 주기 위한 것이며, 그 첨가량은 8wt% 미만일 경우에는 제진제로서의 기능을 발휘하지 못하며, 13wt%를 초과하여 사용하게 되면 더 이상의 제진효과가 나타나지 않을뿐더러 작업성에 악영향을 미치므로 그 첨가량은 8~13wt%의 범위가 가장 바람직하다. Another feature of the present application is the use of a glass filler, a porous filler, which is intended to give a high damping function, which is another main function with high rigidity, and when the added amount is less than 8wt%, it does not function as a damping agent. When used in excess of 13wt%, no further damping effect is exhibited and the workability is adversely affected, so the amount of addition is most preferably in the range of 8 to 13wt%.
본원에서 또 다른 특징은 셀룰로스화이버를 사용하는 것으로서, 이 셀룰로스화이버는 미세선상으로 가공된 섬유상의 물질이므로 이 물질을 첨가한 본 발명 조성물로 시트를 제조하게 되면, 취급 및 차체 패널에 장착시에 충격에 의한 크랙(crack)을 방지하면서 진동감쇄(제진)효과를 주게 되는 특징이 있는 것으로서, 1~8wt% 이하에서는 클랙예방이나 제진효과가 적고 그 이상에서는 시트의 조직을 너무 성글고 느슨하게 하는 결점이 있으므로 1~8wt%가 가장 바람직하다.Another feature herein is the use of cellulose fiber, which is a fibrous material processed in a fine line, so when the sheet is made from the composition of the present invention to which the material is added, impact upon handling and mounting to the vehicle body panel It is characterized by giving a vibration damping effect while preventing cracks, and it has a defect of preventing cracking or damping at less than 1 ~ 8wt% and making the structure of the sheet too sparse and too loose. Therefore, 1-8 wt% is most preferable.
또한 본 발명에서 사용되는 통상적으로 사용되는 강성 보강재인 비스페놀(Bisphenol)-A형 에폭시수지는 경화된 후에는 금속과 같은 강성을 나타내므로 금속 보강제와 병용이 가능하며, 또한 내충경성, 내구성 등이 뛰어나면서 내식성이 강한 특징을 가지고 있으므로 금속보강재 대용으로 완벽한 차체구조물 보강제 역할을 하게 되는데, 그 첨가량은 20wt% 이하이면 보강 시트의 강도가 저하되어 본 발명의 주목적인 고강성의 기능이 저하되게 되며, 35wt%를 초과하게 되면, 강성이 너무 높아서 충격에 의해 파손 또는 크랙 및 박리의 위험성이 있을 뿐만 아니라 가공 공정에 있어서도 어려움이 있으므로 20~35wt%로 첨가하는 것이 가장 바람직하다.In addition, bisphenol-A type epoxy resin, which is a commonly used rigid reinforcing material used in the present invention, after curing, exhibits the same rigidity as a metal, and thus may be used in combination with a metal reinforcing agent, and also has excellent impact resistance and durability. While it has a strong corrosion resistance, it serves as a perfect body structure reinforcement as a substitute for metal reinforcement, if the amount is less than 20wt% the strength of the reinforcing sheet is lowered, the main purpose of the high rigidity of the present invention is reduced, 35wt When it exceeds%, the rigidity is so high that not only there is a risk of damage or cracking and peeling due to impact, but also difficult in the processing process, it is most preferably added at 20 ~ 35wt%.
또 통상적인 제진재인 NBR변성 에폭시수지는 탄성도 부여하는 탄성부여제로서 8wt%미만인 경우에는 탄성, 즉 가소성, 탄성 및 접착력이 저하되어 패널에 대한 시트 접착 후 박리되기 쉬운 결점이 있으며, 15wt%를 초과하게 되면 탄성은 좋으나 패널과의 접착성 및 강도가 저하되어 박리 및 균열 현상이 발생하게 되므로 8~15wt%를 첨가하는 것이 가장 바람직하며, 점착력을 향상시키기 위한 통상의 CTBN변성 에폭시수지는 2~5wt%의 량이 첨가되는 것이 바람직하고, 그 이하에서는 초기 점착력이 미약하여 안정적으로 시트를 차체패널에 점착시키기가 어렵고, 그 이상에서는 점도가 높아서 흘러내릴 염려가 있게 된다.In addition, NBR-modified epoxy resin, which is a conventional vibration damping material, is an elasticity imparting agent to impart elasticity, and when it is less than 8wt%, elasticity, that is, plasticity, elasticity, and adhesive strength is lowered, and thus, there is a flaw that is easy to peel off after sheet adhesion to the panel. When exceeded, the elasticity is good, but the adhesiveness and strength with the panel are lowered, so that peeling and cracking are generated. Therefore, it is most preferable to add 8-15 wt%. It is preferable that the amount of 5wt% is added, and below that, the initial adhesive force is weak, and it is difficult to stably adhere the sheet to the vehicle body panel.
또한 통상적인 에폭시수지용 잠재성 경화제인 디시안디아미드(Dicyandiamide)(DICY)는 공지되어 있는 바와 같이 시트를 상온에서 보관시에 침입도가 급격히 저하되는 것을 예방하기 위한 것으로서, 사용량이 3wt% 미만이면 경화속도가 느려지거나 경화되지 않게 되므로 경도 및 접착강도가 저하될 우려가 있으며, 7wt%를 초과하게 되면 박리되기 쉽고 저장안정성 및 침입도도 저하되는 문제가 생길 수 있다.In addition, dicyandiamide (DICY), a latent curing agent for conventional epoxy resins, is known to prevent a sharp drop in penetration when the sheet is stored at room temperature. Since the curing rate is slowed or not cured, the hardness and the adhesive strength may be lowered. If the curing rate is exceeded, it may cause a problem of being easily peeled off and lowering the storage stability and penetration.
상기에서 일반 충전제인 중질 탄산칼슘(CaCO3)은 최종제품의 체적을 조절하는 역할을 하는 것으로 25~35wt% 이하에서는 체적 증가가 다소 미약하고 그 이상에서는 너무 과량이어서 시트의 물성을 저해하게 된다. Heavy calcium carbonate (CaCO3), a general filler, serves to control the volume of the final product, and the increase in volume is slightly weaker at 25 to 35 wt% or less, and too much, thereby inhibiting the physical properties of the sheet.
상기에서 흡습제인 산화칼슘(CaO)은 제품 내의 수분을 제거하는 작용을 하는 것으로서 2~6wt% 이하는, 그 흡습작용이 미약하고 그 이상에서는 효과가 더 이상 증진되지 않으면서 제품의 중량만 증가시키게 된다. 상기 카본 블랙은 착색겸 보강, 도전제로써 그 첨가량이 상기의 양 이하에서는 그 효과가 미약하고 그 이상에서는 효과가 더 이상 상승효과가 나타나지 않으므로 상기의 첨가량이 가장 바람직하다. Calcium oxide (CaO) is a moisture absorbent in the above action to remove the water in the product is less than 2 ~ 6wt%, the moisture absorption is weak and above that to increase only the weight of the product without further enhancement effect do. The carbon black is a coloring, reinforcing and conductive agent, and the addition amount is most preferable because the effect is less than the above amount and the effect is no longer synergistic.
실시 예:Example:
이상과 같이 구성되는 본 발명은 시트를 패널에 부착 후 차체의 전착 도장시에 자동적으로 자체 패널과 접착 경화되어, 차체의 구조적 취약부위를 보강하여 고강성을 띄게 되는 우수한 효과를 얻게 되고 동시에 클랙방지제 및 다공질의 충전제에 의해 40~60℃의 비교적 고온 영역에서도 극히 우수한 제진성을 나타내므로 기존 아스팔트 재진시트에 비하여 차량의 주행 중은 물론, 엔진에 의한 진동 제어에도 효과가 있을 뿐만 아니라, 차량 중량을 크게 증가시키지 않으므로 차체 금속판의 박판화로 원가절감 및 연비절감의 효과도 있으며, 또 다양한 모양으로 제품을 생산할 수 있어서 평판, 굴곡 및 수직 부위 등 어떤 부위에서도 자유롭게 사용할 수 있는 장점이 있다. The present invention constituted as described above is adhesively cured with its own panel at the time of electrodeposition coating of the vehicle body after attaching the sheet to the panel, thereby reinforcing structural weak parts of the vehicle body to obtain an excellent effect of exhibiting high rigidity and at the same time crack prevention agent And the porous filler shows extremely good vibration damping even at a relatively high temperature range of 40 to 60 ° C. As compared to the existing asphalt ashing sheet, it is not only effective for driving the vehicle but also for controlling vibration by the engine. Since it does not increase significantly, it is possible to reduce the cost and fuel economy by thinning the body metal plate, and also to produce the product in various shapes, so that it can be freely used in any part such as flat plate, bend and vertical part.
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| KR100802812B1 (en) * | 2006-10-31 | 2008-02-14 | 현대자동차주식회사 | Reinforced sheet composition |
| WO2008030048A1 (en) * | 2006-09-07 | 2008-03-13 | Henkel Korea Ltd. | Sealant composition for improving collision performance |
| KR20150072194A (en) * | 2013-12-19 | 2015-06-29 | 지엠 글로벌 테크놀러지 오퍼레이션스 엘엘씨 | A coating composition for rust prevention performance and vibration damping effect comprising epoxy resin |
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| KR101637714B1 (en) | 2014-10-31 | 2016-07-07 | 현대자동차주식회사 | Filler and The Composition for anti vibration Sealer containing the Filler |
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| JP3740776B2 (en) | 1997-02-20 | 2006-02-01 | ダイソー株式会社 | Damping material composition |
| KR100288762B1 (en) * | 1998-04-24 | 2001-05-02 | 이연복 | Metallic plate reinforcement foam composition |
| KR100510579B1 (en) * | 2002-10-12 | 2005-08-31 | 헨켈코리아 주식회사 | Tacky reinforcing product for reinforcing structures of cars |
| DE60336591D1 (en) * | 2003-02-10 | 2011-05-12 | Kuraray Co | EPOXY COMPOSITION |
| KR100600098B1 (en) * | 2004-07-22 | 2006-07-13 | 헨켈코리아 주식회사 | Reinforcing composition of metalic panel |
| KR100615825B1 (en) * | 2005-03-25 | 2006-08-28 | 헨켈코리아 주식회사 | Two liquids type Reinforcing agent for vehicles's structures and Method reinforcing vehicles body by it |
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| WO2008030048A1 (en) * | 2006-09-07 | 2008-03-13 | Henkel Korea Ltd. | Sealant composition for improving collision performance |
| KR100802812B1 (en) * | 2006-10-31 | 2008-02-14 | 현대자동차주식회사 | Reinforced sheet composition |
| KR20150072194A (en) * | 2013-12-19 | 2015-06-29 | 지엠 글로벌 테크놀러지 오퍼레이션스 엘엘씨 | A coating composition for rust prevention performance and vibration damping effect comprising epoxy resin |
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