KR100835672B1 - Flooring material of vehicle - Google Patents

Flooring material of vehicle Download PDF

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Publication number
KR100835672B1
KR100835672B1 KR1020070034917A KR20070034917A KR100835672B1 KR 100835672 B1 KR100835672 B1 KR 100835672B1 KR 1020070034917 A KR1020070034917 A KR 1020070034917A KR 20070034917 A KR20070034917 A KR 20070034917A KR 100835672 B1 KR100835672 B1 KR 100835672B1
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KR
South Korea
Prior art keywords
layer
weight
vehicle
metallocene
flooring material
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KR1020070034917A
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Korean (ko)
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권영구
원용복
최필준
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덕산기업 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/04—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets
    • B60N3/048—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets characterised by their structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B32B2471/04—Mats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings

Abstract

Flooring material of a vehicle using metallocene polypropylene is provided to be recycled, and to make high quality products to be supplied to customers by using the environment-friendly flooring material used for a vehicle, architecture and a ship. Flooring material of a vehicle using metallocene polypropylene comprises a capping layer(400), an under layer(300), a primer layer(500) and a coated layer(600). The capping layer and the under layer are laminated with nonwoven fabric(100) through an adhesive layer(200) formed in an upper end of the nonwoven fabric. The primer layer and the coating layer are formed in a surface of the capping layer. The under layer includes mixture with fixed ratios of 10-20wt.% metallocene polypropylene, 10-20wt.% ethylene butane copolymer, 6-10wt.% polypropylene, 20-30wt.% flame retardants, 30-40wt.% filler, 0.5-1.5wt.% stabilizer, 0.4-0.6wt.% antioxidant and 0.4-0.5wt.% pigment.

Description

메탈로센 РР를 이용한 차량용 바닥재{Flooring material of vehicle}Flooring material for vehicle using metallocene РР {Flooring material of vehicle}

도1은 본 발명에 따른 메탈로센 РР를 이용한 차량용 바닥재 구성도,1 is a configuration diagram of a vehicle floor using a metallocene РР according to the present invention,

도2는 본 발명에 따른 메탈로센 РР를 이용한 차량용 바닥재의 공정도.Figure 2 is a process diagram of a vehicle floor using a metallocene РР according to the present invention.

(도면중 주요 부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

100 ; 부직포 200 ; 접착제층100; Nonwoven fabric 200; Adhesive layer

300 ; 하지층 400 ; 상지층300; Base layer 400; Upper strata

500 ; 프라이머층 600 ; 코팅층500; Primer layer 600; Coating layer

700 ; 1차 예열 드럼 710 ; 2차 예열 드럼700; Primary preheating drum 710; 2nd preheating drum

720 ; 예열 드럼 730 ; 엠보롤720; Preheating drum 730; Embossing roll

740 ; 히터 750 ; 냉각롤740; Heater 750; Cooling roll

본 발명은 메탈로센 РР를 이용한 차량용 바닥재에 관한 것으로, 특히 차량 바닥재, 건축 및 선박 등에 사용되는 바닥재를 환경 친화적인 재질로 형성하여 소각시 환경호르몬과 같은 유해물질이 배출되는 것을 방지함과 동시에 재활용이 가능하게 하고 물리적 화학적 성질을 부여하여 고품질의 제품을 소비자에게 제공할 수 있도록 한 메탈로센 РР를 이용한 차량용 바닥재에 관한 것이다.The present invention relates to a vehicle flooring material using a metallocene РР, in particular to form a flooring material used for vehicle flooring, construction and ships to an environmentally friendly material to prevent the discharge of harmful substances such as environmental hormones during incineration The present invention relates to a vehicle flooring material using metallocene РР that enables recycling and imparts physical and chemical properties to provide a high quality product to consumers.

일반적으로 차량 바닥에는 차량의 주행중에 엔진, 도어, 헤드라이너 및 기타 기계부품에 의하여 발생하는 소음 및 진동음을 저감하고, 주행자에게 쾌적한 주행환경을 제공하기 위해 흡음 차음 성능을 가지는 바닥재를 설치 사용하고 있다. 이러한 바닥재는 차량의 실내로 유입되는 소음 및 진동을 차단, 제진 및 흡음하여야 하고, 주행중 발생하는 소음의 저주파 및 고주파의 복합에너지를 차량의 실내 공간으로 전달되지 않아야 한다.In general, the floor of the vehicle is installed with flooring materials with sound absorbing and soundproofing to reduce noise and vibration generated by engines, doors, headliners and other mechanical parts while the vehicle is running, and to provide a comfortable driving environment for the driver. have. Such flooring material should block, damp and absorb noise and vibration introduced into the vehicle's interior, and the low and high frequency complex energy of the noise generated while driving should not be transmitted to the interior space of the vehicle.

상기와 같은 종래 바닥재를 이용하여 소기의 목적을 달성할 수 있다는 이점은 있으나, 종래 바닥재는 물리적 및 기계적 성질과 성형성이 뛰어난 폴리비닐클로라이드(PVC) 재질을 포함하는 바닥재가 널리 사용되고 있다. 이러한 바닥재를 장기간 또는 파손시에는 이를 폐기처분해야 하는데 재질 특성상 땅에 매립하면 썩지 않기 때문에 대부분이 소각과정을 거쳐 폐기 처분하고 있다.Although there is an advantage that the desired purpose can be achieved by using the conventional flooring as described above, conventional flooring is widely used flooring including a polyvinyl chloride (PVC) material having excellent physical and mechanical properties and formability. When such flooring material is destroyed for a long time or damaged, most of it is disposed of by incineration because it does not decay when it is buried in the ground.

그러나 폴리비닐클로라이드는 소각시 다이옥신이 발생하고, 가공성을 개량하는 물질인 프탈레이트 가소제의 사용으로 인하여 불쾌한 냄새를 유발하며 환경호르몬등과 같은 유해물질이 다량 배출됨에 따라 환경공해에 심각한 문제를 야기시키는 단점이 있었다.However, polyvinyl chloride generates dioxins during incineration and causes unpleasant odors due to the use of phthalate plasticizers, which improve processability. There was this.

따라서 본 발명의 목적은 상기와 같은 종래의 문제점을 감안하여 안출한 것으로, 차량 바닥재, 건축 및 선박 등에 사용되는 바닥재를 환경 친화적인 재질로 형성하여 소각시 환경호르몬과 같은 유해물질이 배출되는 것을 방지함과 동시에 재 활용이 가능하게 하고 물리적 화학적 성질을 부여하여 고품질의 제품을 소비자에게 제공할 수 있도록 한 메탈로센 РР를 이용한 차량용 바닥재를 제공하는데 있다.Accordingly, an object of the present invention is to conceive in view of the above-mentioned conventional problems, to prevent the discharge of harmful substances such as environmental hormones when incinerated by forming a flooring material used for vehicle flooring, construction and ships with an environmentally friendly material In addition, the present invention provides a vehicle flooring material using metallocene РР that is capable of recycling and providing physical and chemical properties to provide high quality products to consumers.

상기와 같은 목적을 달성하기 위한 수단으로 본 발명의 차량용 바닥재는, 부직포 상단에 형성된 접착제층을 통하여 하지층과 상지층이 부직포와 합판되고, 이 상지층의 표면에는 프라이머층, 코팅층이 형성되고,As a means for achieving the above object, the vehicle flooring material of the present invention, the base layer and the upper layer is laminated with the nonwoven fabric through an adhesive layer formed on the top of the nonwoven fabric, the surface of the upper layer is formed with a primer layer, a coating layer,

상기 하지층은 메탈로센 РР(Propylene-ethylene Copolymers) 10~20중량%, 에틸렌 부텐 코풀리머(Eythlene-Butene Copolymers) 10~20중량%. 폴리프로필렌 6~10%, 난연제 20~30중량%, 충진제 30~40중량%, 안정제 0.5~1.5중량%, 산화방지제 0.4~0.6중량%, 안료 0.4~0.6중량%가 일정한 비율로 배합되는 것과,The base layer is 10 to 20% by weight of metallocene РР (Propylene-ethylene Copolymers), 10 to 20% by weight of ethylene butene Copolymer (Eythlene-Butene Copolymers). 6 to 10% polypropylene, 20 to 30% by weight flame retardant, 30 to 40% by weight filler, 0.5 to 1.5% by weight stabilizer, 0.4 to 0.6% by weight antioxidant, 0.4 to 0.6% by weight pigment,

상기 상지층은 메탈로센 РР 30~40중량%, 에틸렌 부텐 코풀리머 20~30중량%. 폴리프로필렌 20~30%, 충진제 8~12%, 안정제 0.5~1.5중량%, 산화방지제 0.4~0.6중량%, 자외선 흡수제 0.4~0.6중량%, 안료 0.5~1.5중량%가 일정한 비율로 배합되는 것을 그 기술적 구성상의 기본 특징으로 한다.The upper layer is metallocene РР 30 to 40% by weight, ethylene butene coplier 20 to 30% by weight. 20 to 30% of polypropylene, 8 to 12% of filler, 0.5 to 1.5% by weight of stabilizer, 0.4 to 0.6% by weight of antioxidant, 0.4 to 0.6% by weight of UV absorber, 0.5 to 1.5% by weight of pigment The basic features of the technical configuration.

이하 본 발명의 바람직한 실시예를 첨부도면을 참조하여 보다 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 따른 메탈로센 РР를 이용한 차량용 바닥재 구성도 이고, 도2는 본 발명에 따른 메탈로센 РР를 이용한 차량용 바닥재의 공정도이다.1 is a configuration diagram of a vehicle floor using a metallocene РР according to the present invention, Figure 2 is a process diagram of a vehicle floor using a metallocene РР according to the present invention.

본 발명의 차량용 바닥재는 도1과 도2에서와 같이 부직포(100) 상단에 형성된 접착제층(200)을 통하여 하지층(300)과 상지층(400)이 부직포(100)와 합판되고, 이 상지층(300)의 표면에는 프라이머층(500), 코팅층(600)이 형성되는 구성을 갖는다.In the vehicle flooring of the present invention, the base layer 300 and the upper limb layer 400 are laminated with the nonwoven fabric 100 through the adhesive layer 200 formed on the top of the nonwoven fabric 100 as shown in FIGS. 1 and 2. The primer layer 500 and the coating layer 600 are formed on the surface of the layer 300.

하지층(300)은 메탈로센 РР 10~20중량%, 에틸렌 부텐 코풀리머 10~20중량%. 폴리프로필렌 6~10%, 난연제 20~30중량%, 충진제 30~40중량%, 안정제 0.5~1.5중량%, 산화방지제 0.4~0.6중량%, 안료 0.4~0.6중량%가 일정한 비율로 배합 사용되는데, 최적정 비율은 메탈로센 РР 15중량%, 에틸렌 부텐 코풀리머 15중량%. 폴리프로필렌 8%, 난연제 25중량%, 충진제 35중량%, 안정제 1중량%, 산화방지제 0.5중량%, 안료 0.5중량%의 비율로 배합하는 것이 가장 바람직하다.The base layer 300 is 10 to 20% by weight of metallocene РР, 10 to 20% by weight of ethylene butene coplier. Polypropylene 6-10%, flame retardant 20-30% by weight, filler 30-30% by weight, stabilizer 0.5-1.5% by weight, antioxidant 0.4-0.6% by weight, pigment 0.4-0.6% by weight are used in combination, The optimum ratio is 15% by weight of metallocene РР, 15% by weight of ethylene butene copulimer. It is most preferable to mix | blend in the ratio of 8% of polypropylene, 25 weight% of flame retardants, 35 weight% of fillers, 1 weight% of stabilizers, 0.5 weight% of antioxidants, and 0.5 weight% of pigments.

상지층(400)은 메탈로센 РР 30~40중량%, 에틸렌 부텐 코풀리머 20~30중량%, 폴리프로필렌 20~30%, 충진제 8~12%, 안정제 0.5~1.5중량%, 산화방지제 0.4~0.6중량%, 자외선 흡수제 0.4~0.6중량%, 안료 0.5~1.5중량%가 일정한 비율로 배합 사용되는데, 최적정 비율은 메탈로센 РР 35중량%, 에틸렌 부텐 코풀리머 25중량%, 폴리프로필렌 25%, 충진제 10%, 안정제 1중량%, 산화방지제 0.5중량%, 자외선 흡수제 0.5중량%, 안료 1중량%의 비율로 배합하는 것이 가장 바람직하다.Upper layer 400 is 30-40% by weight of metallocene РР, 20-30% by weight of ethylene butene coplier, 20-30% of polypropylene, filler 8-12%, stabilizer 0.5-1.5% by weight, antioxidant 0.4 ~ 0.6% by weight, UV absorber 0.4-0.6% by weight, pigment 0.5-1.5% by weight is used in a fixed ratio, the optimum ratio is 35% by weight of metallocene РР, 25% by weight of ethylene butene coplier, polypropylene It is most preferable to mix | blend in the ratio of 25%, filler 10%, stabilizer 1 weight%, antioxidant 0.5 weight%, ultraviolet absorber 0.5 weight%, and pigment 1 weight%.

이와 같이 구성된 본 발명을 사용하기 위해서는 먼저 메탈로센 РР, 에틸렌 부텐 코풀리머, 폴리프로필렌, 충진제, 안정제 0.5~1.5, 산화방지제, 자외선 흡수제, 안료를 일정 비율로 혼합하여 상지층(400)을 시트(sheet)형태로 제조한 후, 상기 상지층(400) 표면에 프라이마를 120메쉬 롤로 도포하고 70~100℃ 온도로 건조하여 프라이마층(500)을 형성한 다음 상기한 프라이마층(500) 표면에 120메쉬 롤을 이용하여 표면처리제를 도포하고 70~100℃ 온도로 건조하여 코팅층(600)을 형성한 다.In order to use the present invention configured as described above, first, the metallocene РР, ethylene butene coplier, polypropylene, filler, stabilizer 0.5-1.5, antioxidant, ultraviolet absorber, and pigment are mixed in a predetermined ratio to form the upper layer 400. After manufacturing in the form of a sheet (sheet), the surface of the upper layer 400 is coated with a 120 mesh roll and dried at a temperature of 70 ~ 100 ℃ to form a prima layer 500 and then the above-mentioned prima layer 500 A surface treatment agent is applied to the surface using a 120 mesh roll and dried at a temperature of 70 to 100 ° C. to form a coating layer 600.

하지층(300)은 메탈로센, 에틸렌 부텐 코풀리머, 폴리프로필렌, 난연제, 충진제, 안정제, 산화방지제, 안료를 일정 비율로 혼합하여 시트 형태로 제조한다.The base layer 300 is prepared in the form of a sheet by mixing a metallocene, ethylene butene coplier, polypropylene, flame retardant, filler, stabilizer, antioxidant, pigment in a certain ratio.

상기와 같은 상지층(400), 하지층(300), 부직포(100)는 각각 롤 상태로 권취되는데, 상기한 상지층, 하지층,부직포의 합판공정을 살펴보면 다음과 같다.The upper layer 400, the lower layer 300, and the nonwoven fabric 100 are wound in rolls, respectively. Looking at the plywood process of the upper layer, the lower layer, and the nonwoven fabric as follows.

먼저 하지층(300)을 60~80℃되는 1차 예열 드럼(700)과 150~170℃되는 2차 예열 드럼(710)에 차례로 통과시킨 후, 상기한 하지층(300) 상단에 상지층(400)을 접합시킨 상태에서 2차 예열 드럼(710)에 상지층(400)과 하지층(300)을 동시에 통과시킨다. 이때 상지층(400)과 하지층(300)은 엠보롤(730)에 진입하기 전까지 히터(740)에 의해 일정한 온도를 유지하게 된다.First, the base layer 300 is sequentially passed through the primary preheating drum 700 at 60 to 80 ° C. and the secondary preheating drum 710 at 150 ° to 170 ° C., and then the upper layer layer (above the upper layer 300). The upper layer 400 and the lower layer 300 are simultaneously passed through the secondary preheating drum 710 while the 400 is bonded. At this time, the upper layer 400 and the lower layer 300 is maintained at a constant temperature by the heater 740 until entering the embossing roll 730.

이후, 접착제층(200)을 갖는 부직포(100)를 50~60℃되는 예열 드럼(720)에 통과시키면 상기 부직포(100)는 하지층(300) 하단에 접합되고, 접합된 상지층(400), 하지층(300), 부직포(100)는 엠보롤(730)을 통과하면서 바닥재로 사용될 수 있도록 일체로 합판된다.Subsequently, when the nonwoven fabric 100 having the adhesive layer 200 is passed through a preheating drum 720 having a temperature of 50 to 60 ° C., the nonwoven fabric 100 is bonded to the bottom of the base layer 300, and the bonded upper limb layer 400 is formed. The base layer 300 and the nonwoven fabric 100 are integrally laminated to be used as a flooring material while passing through the embossing roll 730.

합판된 후에는 10~20℃의 냉각롤(750)을 통과하면서 냉각되고 냉각된 후에는 롤 상태로 권취되어 사용되는 것이다.After the plywood is cooled while passing through the cooling roll 750 of 10 ~ 20 ℃ and after being cooled is wound and used in a roll state.

이상에서 살펴본 바와 같이 본 발명에 의하면, 차량 바닥재, 건축 및 선박 등에 사용되는 바닥재가 환경친화적인 재질로 형성되어 있기 때문에 종래 PVC재질의 바닥재에 비해 환경 규제 품목에 해당되지 않을 뿐 아니라, 소각시 환경호르몬 과 같은 유해물질이 배출되는 것이 방지되어 환경공해에 이바지할 수 있으며, 나아가서는 재활용이 가능하다는 등의 효과가 있는 것이다.As described above, according to the present invention, since the flooring material used for vehicle flooring, construction, and ships is formed of an environmentally friendly material, it does not correspond to an environmentally regulated item as compared to the flooring material of the conventional PVC material, Hazardous substances such as hormones can be prevented from being released, contributing to environmental pollution, and furthermore, recycling is possible.

이상에서는 본 발명을 특정의 바람직한 실시예를 참고하여 설명하였으나, 본 발명은 상기한 실시예에 한정되지 아니하며 본 발명의 요지를 벗어나지 않는 범위에서 통상의 지식을 가진자에 의해 다양한 변경과 수정이 이루어질 수 있는 것임을 밝혀둔다.The present invention has been described above with reference to specific preferred embodiments, but the present invention is not limited to the above embodiments and various changes and modifications may be made by those skilled in the art without departing from the gist of the present invention. Make sure you can.

Claims (3)

삭제delete 부직포(100) 상단에 형성된 접착제층(200)을 통하여 하지층(300)과 상지층(400)이 부직포(100)와 합판되고, 이 상지층(400)의 표면에는 프라이머층(500), 코팅층(600)이 형성되는 것을 특징으로 하는 차량용 바닥재에 있어서, 상기 하지층(300)은 메탈로센 РР 10~20중량%, 에틸렌 부텐 코풀리머 10~20중량%. 폴리프로필렌 6~10%, 난연제 20~30중량%, 충진제 30~40중량%, 안정제 0.5~1.5중량%, 산화방지제 0.4~0.6중량%, 안료 0.4~0.6중량%가 일정한 비율로 배합되는 것을 특징으로 하는 메탈로센 РР를 이용한 차량용 바닥재.The base layer 300 and the upper limb layer 400 are laminated with the nonwoven fabric 100 through the adhesive layer 200 formed on the top of the nonwoven fabric 100, and the primer layer 500 and the coating layer are formed on the surface of the upper layer 400. In the vehicle flooring, characterized in that the 600 is formed, the base layer 300 is 10 to 20% by weight of metallocene РР, 10 to 20% by weight of ethylene butene coplier. Polypropylene 6-10%, flame retardant 20-30% by weight, filler 30-40% by weight, stabilizer 0.5-1.5% by weight, antioxidant 0.4-0.6% by weight, pigment 0.4-0.6% by weight are formulated at a constant ratio Vehicle flooring using metallocene РР. 제2항에 있어서, 상기 상지층(400)은 메탈로센 РР 30~40중량%, 에틸렌 부텐 코풀리머 20~30중량%. 폴리프로필렌 20~30%, 충진제 8~12%, 안정제 0.5~1.5중량%, 산화방지제 0.4~0.6중량%, 자외선 흡수제 0.4~0.6중량%, 안료 0.5~1.5중량%가 일정한 비율로 배합되는 것을 메탈로센 РР를 이용한 차량용 바닥재.According to claim 2, wherein the upper layer 400 is metallocene РР 30 to 40% by weight, ethylene butene coplier 20 to 30% by weight. 20-30% polypropylene, 8-12% filler, 0.5-1.5 wt% stabilizer, 0.4-0.6 wt% antioxidant, 0.4-0.6 wt% UV absorber, 0.5-1.5 wt% pigment Vehicle flooring using Rosen РР.
KR1020070034917A 2007-04-10 2007-04-10 Flooring material of vehicle KR100835672B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980047231U (en) * 1996-12-28 1998-09-25 양재신 Car carpet with vibration damping and soundproof structure
JP2000177473A (en) 1998-12-14 2000-06-27 Meiwa Ind Co Ltd Mat
JP2003076373A (en) 2001-08-31 2003-03-14 Lear Corp Lightweight acoustical system
JP2003300269A (en) * 2002-04-11 2003-10-21 Hayashi Gijutsu Kenkyusho:Kk Laying material for car compartment and separation and recovery method therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980047231U (en) * 1996-12-28 1998-09-25 양재신 Car carpet with vibration damping and soundproof structure
JP2000177473A (en) 1998-12-14 2000-06-27 Meiwa Ind Co Ltd Mat
JP2003076373A (en) 2001-08-31 2003-03-14 Lear Corp Lightweight acoustical system
JP2003300269A (en) * 2002-04-11 2003-10-21 Hayashi Gijutsu Kenkyusho:Kk Laying material for car compartment and separation and recovery method therefor

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