JPS63162214A - Interior skin material for automobile - Google Patents

Interior skin material for automobile

Info

Publication number
JPS63162214A
JPS63162214A JP61308144A JP30814486A JPS63162214A JP S63162214 A JPS63162214 A JP S63162214A JP 61308144 A JP61308144 A JP 61308144A JP 30814486 A JP30814486 A JP 30814486A JP S63162214 A JPS63162214 A JP S63162214A
Authority
JP
Japan
Prior art keywords
interior skin
skin material
resistance
tpo
molding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP61308144A
Other languages
Japanese (ja)
Inventor
Kazuo Araki
和男 荒木
Yuji Sano
佐野 雄次
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANBITSUKU KK
Shigeru Kogyo KK
Original Assignee
SANBITSUKU KK
Shigeru Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SANBITSUKU KK, Shigeru Kogyo KK filed Critical SANBITSUKU KK
Priority to JP61308144A priority Critical patent/JPS63162214A/en
Publication of JPS63162214A publication Critical patent/JPS63162214A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve heat resistance, low temp. resistance and light resistance, by foam-molding a resin material whose main component is an olefinic thermoplastic elastomer. CONSTITUTION:As a raw material for an interior skin material, a mixture of a resin material, a foaming agent, a stabilizer and so on is used. The resin material is comprized of 50-100% of an olefinic thermoplastic elastomer (TPO), 0-40% of a polypropylene (PP) and 10-30% of foaming additive for olefin. The hardness of TPO foamed sheet after molding is determined by the compounding ratio of PP. As the foaming agent, a foaming agent for a thermoplastic resin is used. As the stabilizer, a ultraviolet ray absorber, a heat stabilizer and so on are used. The TPO foamed sheet for the interior skin material can be obtained by molding the raw material into a sheet by means of an extruder and foaming it at the same time. As the various physical properties such as heat resistance, low temp. resistance, light resistance and so on can be thereby improved, it becomes possible to use the foamed sheet as it is as an interior skin material.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、自動車のドアトリム等に使用される内装表
皮材に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an interior skin material used for automobile door trims and the like.

(従来の技術) 一般に、自動車のドア) l)ム等の車室内側表面には
内装表皮材が取り付けられている。
(Prior Art) Generally, an interior skin material is attached to the inside surface of the vehicle interior, such as the door of an automobile.

この内装表皮材には、樹脂材料や発泡剤等を混合してな
る原料を押し出し磯により発泡成形して発泡シート状に
したものが多く採用されている。
This interior skin material is often made of a foamed sheet made by extruding a raw material mixed with a resin material, a foaming agent, etc., and then foam-molding it using a rock.

具体的には、ポリ塩化ビニル(以下、PVCと略称する
)を+3(薄材料の主成分としたPvC発泡シートや、
ポリプロピレン(以下、PPと略称する)を樹脂材料の
主成分としたPP発泡シートや、ポリエチレン(以下、
PEと略称する)を樹脂材料の主成分としたPE発泡シ
ート等がある。
Specifically, polyvinyl chloride (hereinafter abbreviated as PVC) +3 (PvC foam sheet with thin material as the main component,
PP foam sheets with polypropylene (hereinafter abbreviated as PP) as the main component of the resin material and polyethylene (hereinafter abbreviated as PP)
There are PE foam sheets etc. whose main component is PE (abbreviated as PE) as a main component of the resin material.

(発明が解決しようとする問題点) しかしながら、上記各発泡シートの内装表皮材には次の
ような欠点があった。
(Problems to be Solved by the Invention) However, the interior skin materials of each of the above-mentioned foam sheets had the following drawbacks.

PVC発泡シートは重量が大きく、長期耐熱性、耐寒性
に劣り、肌が粗くて外観が悪く、コストも高い。又、可
塑剤を含むため窓ガラスを曇らせる。
PVC foam sheets are heavy, have poor long-term heat resistance and cold resistance, have rough skin and poor appearance, and are expensive. It also fogs up window glass because it contains plasticizers.

更に、成形後に残留応力を有する性質があるため、経時
的に変形を生ずる。
Furthermore, since it has a property of having residual stress after molding, it deforms over time.

PP発泡シートは耐光性に極めて劣る。PP foam sheets have extremely poor light resistance.

PE発泡シートは、PP発泡シートの欠点を有する上に
、更に耐熱性にも劣っている。
In addition to having the disadvantages of PP foam sheets, PE foam sheets are also inferior in heat resistance.

したがって、自動車用内装表皮材として使用する場合に
は、上記各発泡シートの表面にPVC等の別の表皮を設
けなければ使用に耐えられなかった。
Therefore, when used as an interior skin material for an automobile, it is necessary to provide another skin such as PVC on the surface of each of the above-mentioned foam sheets.

そして、上記各発泡シートの欠点をカバーし得る自動車
用内装表皮材は現在に至るまで開発されていない。
Up to now, no interior skin material for automobiles has been developed that can overcome the drawbacks of each of the foam sheets mentioned above.

(問題点を解決するための手段) この発明は上記問題点を解決するためになされたもので
、その要旨は、オレフィン系熱可塑性エラストマー(以
下、TPOと略称する)を主成分とする樹脂材料を発泡
成形してなることを特徴とする自動車用内装表皮材にあ
る。
(Means for Solving the Problems) This invention was made to solve the above problems, and the gist thereof is to provide a resin material whose main component is an olefin thermoplastic elastomer (hereinafter abbreviated as TPO). An interior skin material for automobiles, characterized by being formed by foam molding.

(作用) TPOを樹脂材料の主成分としているので、発泡成形さ
れた自動車用内装表皮材は耐熱性、耐寒性、耐光性等の
各種物性に極めて優れている。したがって、表面に別の
表皮を設ける必要もなくなる。又、残留応力も生ぜず、
内装表皮材が経時的に変形することもない。
(Function) Since TPO is the main component of the resin material, the foam-molded automobile interior skin material has extremely excellent physical properties such as heat resistance, cold resistance, and light resistance. Therefore, there is no need to provide a separate skin on the surface. Also, no residual stress is generated,
The interior skin material does not deform over time.

(実施例) 以下、この発明による自動車用内装表皮材について説明
する。
(Example) Hereinafter, an automotive interior skin material according to the present invention will be described.

内装表皮材の原料には樹脂材料、発泡剤、安定剤等を混
合したものが用いられる。
The raw material for the interior skin material is a mixture of resin materials, foaming agents, stabilizers, and the like.

上記樹脂材料は下記の配合比率の樹脂成分から成ってい
る。
The above resin material consists of resin components in the following blending ratio.

TPO50〜゛100% PP               0〜40%才しフ
ィン系発泡助剤  10〜b 上記配合比率について補足説明をすると、樹脂材料はT
POのみで構成されていてもよいし、PPを配合せずT
POとオレフィン系発泡助剤とで構成してもよい。尚、
上記PPの配合比率によって成形後のTPO発泡シート
の硬度が決定される。
TPO50~100% PP 0~40% aged fin foaming aid 10~b To provide a supplementary explanation of the above blending ratio, the resin material is T
It may be composed only of PO, or it may be composed of T without PP.
It may also be composed of PO and an olefin foaming aid. still,
The hardness of the TPO foam sheet after molding is determined by the blending ratio of the PP.

又、上記発泡剤には熱可塑性樹脂の発泡剤が使用される
。安定剤としては、紫外線吸収剤や熱安定剤等が用いら
れる。
Further, a thermoplastic resin foaming agent is used as the foaming agent. As the stabilizer, an ultraviolet absorber, a heat stabilizer, etc. are used.

上記原料を押し出し磯によって、シート状にすると同時
に発泡させて、内装表皮材としてのTPO発泡シートを
得る。尚、この製造方法は、従来のPVC発泡シート、
PP発泡シー)、PE発泡シート等を製造する方法と同
様であり、説明は省略する。
The above-mentioned raw material is extruded and made into a sheet by means of a mill, and simultaneously foamed to obtain a TPO foam sheet as an interior skin material. In addition, this manufacturing method uses conventional PVC foam sheets,
This method is similar to the method for producing PP foam sheets, PE foam sheets, etc., and the explanation thereof will be omitted.

次に、原料における樹脂材料として、各成分を下記の配
合比率にして内装表皮材を製造し、この内装表皮材をド
アトリムの車室内側に真空成形法により接着したところ
、極めてソフトな感触のドアトリムが得られた。
Next, an interior skin material was manufactured using the following blending ratios of each component as a raw material resin material, and this interior skin material was adhered to the interior side of the door trim using a vacuum forming method, resulting in an extremely soft-touch door trim. was gotten.

TPO70% PP             5% 才レフイン系発泡助剤  25% 上記Yアトリムの内装表皮材の緒特性を従来の発泡シー
トの内装表皮材と比較して以下に述べる。
TPO 70% PP 5% Refine-based foaming aid 25% The characteristics of the Y Atrim interior skin material are compared with those of conventional foam sheet interior skin materials and will be described below.

〔耐光性〕[Light resistance]

サンシャインウェザーオメータを使用し、ブラックパネ
ル温度83℃の条件下で耐光性試験を行ったところ、T
PO発泡シートの耐久時間は約1000時間であった。
When a light resistance test was conducted using a Sunshine Weatherometer at a black panel temperature of 83°C, T
The durability time of the PO foam sheet was about 1000 hours.

従来のPP発泡シー)、PE発泡シートに対して、上記
同一条件下で同一試験をおこなうと、約100時間で原
形を止どめない程に劣化した。又、PVC発泡シートに
あっては約200時間であった。
When the same test was carried out under the same conditions as described above for conventional PP foam sheets) and PE foam sheets, they deteriorated to the point that they could no longer retain their original shape after about 100 hours. In addition, for the PVC foam sheet, the time was about 200 hours.

〔耐熱性〕〔Heat-resistant〕

TPOPE発泡シート熱温度は120℃以上である。 The thermal temperature of the TPOPE foam sheet is 120°C or higher.

これに対し、従来のPE発泡シートでは80℃、PP発
泡シートでは110℃であった。
In contrast, the temperature was 80°C for the conventional PE foam sheet and 110°C for the PP foam sheet.

〔耐寒性〕[Cold resistance]

TPO発泡シートの耐寒温度は一50℃である。これに
対し、従来のPvC発泡シートでは一40℃であった。
The TPO foam sheet has a cold resistance temperature of -50°C. In contrast, the temperature of conventional PvC foam sheets was -40°C.

〔ガラスへの影響〕[Influence on glass]

従来のPvC発泡シートの場合には可塑剤を含んでいた
ので、自動車の内装表皮材として使用すると経時的に窓
ガラスの透光性を低下させてしまうが、TPO発泡シー
トの場合には可塑剤を含まないので、自動車の窓ガラス
に悪影響を及ぼすことはな(1゜ 〔経時的難変形性〕 TPO発泡シートの場合には、成形後に残留応力が残ら
ないので、長期間使用していても内装表皮材としての形
が崩れない。
Conventional PvC foam sheets contain plasticizers, so when used as interior skin materials for automobiles, the light transmittance of window glass decreases over time, but TPO foam sheets contain plasticizers. Since it does not contain any It does not lose its shape as an interior skin material.

TPO発泡シートは上述のように優れた特性を有するが
ゆえ、その表面に別の表皮を設けることなく、そのまま
自動車用内装表皮材として使用することができる。
Since the TPO foam sheet has excellent properties as described above, it can be used as it is as an interior skin material for automobiles without providing a separate skin on its surface.

この発明は上記実施例に制約されず種々の態様が可能で
ある。
This invention is not limited to the above-mentioned embodiments, and various embodiments are possible.

例えば、内装表皮材としての使用態様によって耐摩耗性
が必要な場合には、表面にウレタン系かアクリフ系か又
はポリエステル系等の塗装膜を被覆してもよい。
For example, if abrasion resistance is required depending on the usage as an interior skin material, the surface may be coated with a urethane-based, Acrif-based, or polyester-based paint film.

又、内装部品の芯材への取り付は時を考慮して、TPO
発泡シートの裏面にクロロプレン系接着剤やポリエステ
ル系プライマを付着してもよい。
Also, when attaching interior parts to the core material, consider the time and use TPO.
A chloroprene adhesive or a polyester primer may be applied to the back surface of the foam sheet.

(発明の効果) 以上説明したように、この発明によれば、自動車用内装
表皮材はTPOを主成分とする樹脂材料を発泡させて得
られるので、耐熱性、耐寒性、耐光性等の各種物性に極
めて優れている。したがって、発泡シートの表面に更に
別の表皮を設けることなく、発泡シートをそのままで内
装表皮材として使用可能となる。又、内装表皮材が経時
的に変形することもない。
(Effects of the Invention) As explained above, according to the present invention, the interior skin material for automobiles is obtained by foaming a resin material whose main component is TPO, so it has various properties such as heat resistance, cold resistance, and light resistance. It has extremely excellent physical properties. Therefore, the foam sheet can be used as it is as an interior skin material without providing another skin on the surface of the foam sheet. Furthermore, the interior skin material does not deform over time.

Claims (1)

【特許請求の範囲】[Claims] オレフィン系熱可塑性エラストマを主成分とする樹脂材
料を発泡成形してなることを特徴とする自動車用内装表
皮材。
An automobile interior skin material characterized by being formed by foam molding a resin material whose main component is an olefinic thermoplastic elastomer.
JP61308144A 1986-12-26 1986-12-26 Interior skin material for automobile Pending JPS63162214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61308144A JPS63162214A (en) 1986-12-26 1986-12-26 Interior skin material for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61308144A JPS63162214A (en) 1986-12-26 1986-12-26 Interior skin material for automobile

Publications (1)

Publication Number Publication Date
JPS63162214A true JPS63162214A (en) 1988-07-05

Family

ID=17977419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61308144A Pending JPS63162214A (en) 1986-12-26 1986-12-26 Interior skin material for automobile

Country Status (1)

Country Link
JP (1) JPS63162214A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466179A2 (en) * 1990-07-13 1992-01-15 Sumitomo Chemical Company, Limited Multilayer molded article and method for producing the same
US6277896B1 (en) * 1996-11-20 2001-08-21 Corell Resin Technology B.V. Method for manufacturing a monolithic plastic object, and an object obtained with this method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044260A (en) * 1973-08-24 1975-04-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044260A (en) * 1973-08-24 1975-04-21

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466179A2 (en) * 1990-07-13 1992-01-15 Sumitomo Chemical Company, Limited Multilayer molded article and method for producing the same
US5516582A (en) * 1990-07-13 1996-05-14 Sumitomo Chemical Co., Ltd. Multilayer molded article and method for producing the same
US6277896B1 (en) * 1996-11-20 2001-08-21 Corell Resin Technology B.V. Method for manufacturing a monolithic plastic object, and an object obtained with this method

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