JPH01136816A - Weather strip - Google Patents
Weather stripInfo
- Publication number
- JPH01136816A JPH01136816A JP62294033A JP29403387A JPH01136816A JP H01136816 A JPH01136816 A JP H01136816A JP 62294033 A JP62294033 A JP 62294033A JP 29403387 A JP29403387 A JP 29403387A JP H01136816 A JPH01136816 A JP H01136816A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- weather strip
- mixture
- thermoplastic
- lubricant
- 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
Links
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims abstract description 10
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 10
- 229920005672 polyolefin resin Polymers 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 abstract description 11
- 239000005060 rubber Substances 0.000 abstract description 11
- -1 e.g. Substances 0.000 abstract description 8
- 229920005989 resin Polymers 0.000 abstract description 8
- 239000011347 resin Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 239000012188 paraffin wax Substances 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract 2
- 150000002989 phenols Chemical class 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 13
- 229920002943 EPDM rubber Polymers 0.000 description 10
- 238000007906 compression Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000004606 Fillers/Extenders Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229920002397 thermoplastic olefin Polymers 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 235000014692 zinc oxide Nutrition 0.000 description 3
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010058 rubber compounding Methods 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 239000002335 surface treatment layer Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000012936 vulcanization activator Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- LDTAOIUHUHHCMU-UHFFFAOYSA-N 3-methylpent-1-ene Chemical compound CCC(C)C=C LDTAOIUHUHHCMU-UHFFFAOYSA-N 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000019241 carbon black Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PXJJSXABGXMUSU-UHFFFAOYSA-N disulfur dichloride Chemical compound ClSSCl PXJJSXABGXMUSU-UHFFFAOYSA-N 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 235000012245 magnesium oxide Nutrition 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000005673 monoalkenes Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Seal Device For Vehicle (AREA)
- Window Of Vehicle (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、戸、窓の運動する部分の継目のシールに使
用され、長期間に亘り摺動抵抗を低く抑えられるウェザ
−ストリップに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a weather strip that is used to seal the joints of moving parts of doors and windows and can keep sliding resistance low over a long period of time.
（従来の技術）
従来のウェザ−ストリップとしては、例えば第１図に示
すように自動車のフロントドアガラス１とリアドアガラ
ス２の合せ部位のシールに使用されるものが有り、第２
図に第１図のＡ部分の断面で示すように、該ウェザ−ス
トリップ３はリアドアガラス２の端部を挟持して固定さ
れるＵ字形挟持部とこの挟持部の車内側壁が肩部から延
在する支持壁部５と、この支持壁部５の自由端から車外
側へ屈曲して形成されフロントドアガラス１に摺接する
摺動リップ部４とから構成されている。このようなウェ
ザ−ストリップの構成材料としてはエチレンプロピレン
系ゴムが用いられるが、エチレンプロピレン系ゴムでは
それ自体の摺動抵抗が大きいためシリコーン、ウレタン
等による表面処理を施し摺動抵抗を小さくすることによ
ってシール性という機能の他に防音性の機能を付与して
いる。(Prior Art) As a conventional weather strip, for example, as shown in FIG.
As shown in the cross section of part A in FIG. The sliding lip portion 4 is formed by bending outward from the free end of the supporting wall portion 5 and slidingly contacts the front door glass 1. Ethylene propylene rubber is used as a constituent material for such weather strips, but since ethylene propylene rubber itself has high sliding resistance, surface treatment with silicone, urethane, etc. is applied to reduce the sliding resistance. In addition to the sealing function, it also has a soundproofing function.
（発明が解決しようとする問題点）
しかしながら、このような従来のウェザ−ストリップに
あっては、表面処理層の耐久性が乏しいためガラスとの
摺動部位で表面処理層が短期間で欠損してしまう。その
ためゴム面が露出し摺動抵抗が増加するとともに異音が
発生するという問題があった。(Problems to be Solved by the Invention) However, in such conventional weather strips, the surface treatment layer has poor durability, so the surface treatment layer may be damaged in a short period of time at the sliding part with the glass. It ends up. Therefore, there was a problem that the rubber surface was exposed, the sliding resistance increased, and abnormal noise was generated.
（問題点を解決するための手段）
この発明は、ウェザ−ストリップを、２５〜７５重量％
の熱可塑性結晶ポリオレフィン樹脂と残部がエチレンプ
ロピレンゴムから成る混合物１００重量部に対し、該混
合物と相溶性が悪い１種以上の滑剤１．０〜１５．０重
量部が配合され、混合したエチレンプロピレンゴムがフ
ェノール系加硫剤により架橋されている組成物から構成
したことにより上記問題点を解決したものである。以下
、この発明を説明する。(Means for Solving the Problems) This invention provides weatherstrips that contain 25 to 75% by weight.
1.0 to 15.0 parts by weight of one or more types of lubricant having poor compatibility with the mixture are blended with 100 parts by weight of a mixture consisting of a thermoplastic crystalline polyolefin resin and the balance being ethylene propylene rubber, and the mixed ethylene propylene The above-mentioned problems are solved by forming the rubber composition from a composition in which the rubber is crosslinked with a phenolic vulcanizing agent. This invention will be explained below.
本発明は、従来使用されているエチレンプロピレン系ゴ
ム、好ましくはＥＰＤＭゴムに、相溶性のよい熱可塑性
ポリオレフィン樹脂を混合しなおかつ、そのＥＰＤＭゴ
ムをフェノール系加硫剤で架橋させることにより、物性
を低下させずにゴム−ガラス間の（接触面積を減少させ
）摺動抵抗を低下させたものである。The present invention improves physical properties by mixing a thermoplastic polyolefin resin with good compatibility with a conventionally used ethylene propylene rubber, preferably an EPDM rubber, and crosslinking the EPDM rubber with a phenolic vulcanizing agent. This reduces the sliding resistance between rubber and glass (by reducing the contact area) without reducing it.
（作 用）
使用される熱可塑性ポリオレフィン樹脂はモノオレフィ
ンの重合から得られる結晶性の高分子固体生成物からな
る。適当なオレフィンの例としてはたとえば、エチレン
、プロピレン、１−ブテン、１−ペンテン、１−ヘキセ
ン、２−メチル−１−プロペン、３−メチル−１−ペン
テン、４−メチ。(Function) The thermoplastic polyolefin resin used consists of a crystalline polymeric solid product obtained from the polymerization of monoolefins. Examples of suitable olefins are, for example, ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 2-methyl-1-propene, 3-methyl-1-pentene, 4-methy.
ルーｌ−ペンテンおよびこれらの混合物があげられる。and mixtures thereof.
しかし、商業上入手しうる熱可塑性ポリオレフィン樹脂
としてはポリエチレンまたはポリプロピレンが好ましい
。ここで、混合物のポリオレフィン含有量が２５重量％
未満であると、摺動抵抗が低下せず、他方７５重ｉｔχ
を超えると圧縮永久歪みが増大してシール性に問題が生
じる。更に、上記材料に相溶性の悪い滑剤を１種以上内
部添加し、表面に滲み出させる（プルーム）ことにより
、この材料の持つ摺動抵抗をさらに低下させた。従って
当然のことながら本発明のウェザ−ストリップは従来の
ウェザ−ストリップに生じていた異音の発生、摺動抵抗
の増大等の問題が発生しにくい。However, preferred commercially available thermoplastic polyolefin resins are polyethylene or polypropylene. Here, the polyolefin content of the mixture is 25% by weight.
If it is less than 75%, the sliding resistance will not decrease, and on the other hand, if it is less than 75
If it exceeds this, the compression set will increase and a problem will arise in sealing performance. Furthermore, the sliding resistance of this material was further reduced by internally adding one or more lubricants with poor compatibility to the above material and causing it to ooze out onto the surface (plume). Naturally, therefore, the weatherstrip of the present invention is less prone to problems such as generation of abnormal noise and increase in sliding resistance that occur in conventional weatherstrips.
配合する滑剤としては、結晶ポリオレフィンとエチレン
プロピレン系ゴム、−特にＥＰＤＭと相溶性の悪いもの
で、表１に示すパラフィンワックス、脂肪酸エステル、
脂肪酸アマイド、流動パラフィン、シリコーンオイル、
高級アルコールを挙げることができる。The lubricants to be blended include crystalline polyolefin and ethylene propylene rubber, especially those that are poorly compatible with EPDM, such as paraffin wax, fatty acid ester, etc. shown in Table 1.
fatty acid amide, liquid paraffin, silicone oil,
Higher alcohols can be mentioned.
表１
ここで、滑剤添加量が１重量部未満では摺動抵抗の低下
が見られず、１５重量部を超えると添加効果（添加量の
増加による摺動抵抗の低下）がほとんどみられない上に
外観が悪くなる。Table 1 Here, if the amount of lubricant added is less than 1 part by weight, no decrease in sliding resistance is observed, and if it exceeds 15 parts by weight, there is almost no effect of addition (reduction in sliding resistance due to increased amount of addition). The appearance deteriorates.
また、本発明のウェザ−ストリップはフェノール系加硫
剤により架橋されているため、単にＥＰＤＭゴムとポリ
オレフィン樹脂を硫黄加硫剤又は過酸化物で架橋したも
のと比べると圧縮永久歪みが良好な上に加工時の不快臭
が出にくいという利点がある。最近、アクリロニトリル
ブタジェンゴムとポリ塩化ビニルの混合体に滑剤を内部
添加するというウェザ−ストリップの例（特開昭６１−
２３８５０７号公報）があるが、本発明のウェザ−スト
リップはこの材料と比べても耐候性及び耐オゾン性とい
う点において優れている。In addition, since the weather strip of the present invention is cross-linked with a phenolic vulcanizing agent, it has better compression set than that of simply cross-linking EPDM rubber and polyolefin resin with a sulfur vulcanizing agent or peroxide. It has the advantage of not producing unpleasant odors during processing. Recently, an example of a weather strip in which a lubricant is internally added to a mixture of acrylonitrile butadiene rubber and polyvinyl chloride (Japanese Patent Application Laid-Open No. 1983-1999)
238507), but the weather strip of the present invention is superior to this material in terms of weather resistance and ozone resistance.
本発明のウェザ−ストリップのＥＰＤＭゴムの加硫状態
に関しては完全に加硫されていることが望ましい。加硫
状態を評価するための手段は沸騰キシレン中に溶解する
ゴムの量を測定することからなる。そして、ブレンド中
５％以下のゴムが沸騰キシレン中で抽出されうる程度加
硫されている場合そのゴムは充分に加硫されているとみ
なされる。Regarding the vulcanization state of the EPDM rubber in the weatherstrip of the present invention, it is desirable that the EPDM rubber be completely vulcanized. A means for evaluating the state of vulcanization consists in measuring the amount of rubber dissolved in boiling xylene. A rubber is considered fully vulcanized if less than 5% of the rubber in the blend is vulcanized to the extent that it can be extracted in boiling xylene.
こうした配合物が最も望ましいが特に限定するものでは
ない。フェノール系加硫剤は、フェノール系硬化性樹脂
および加硫活性剤からなり、その例としては以下のよう
なものがあげられる。These formulations are most desirable, but are not particularly limiting. The phenolic vulcanizing agent consists of a phenolic curable resin and a vulcanization activator, and examples thereof include the following.
フェノール系硬化性樹脂としてはｒｓＰ−１０４５Ｊ、
ｒＳＰ−１０５５Ｊ、’５Ｐ−１０５６Ｊ 、（Ｓｃｈ
ｅｎｅｃｔａｄｙＣｈｅｍｉｃａｌｓ 社製、商品名
）、「タッキロール２０１」、［タッキロール２５０−
Ｉ〜Ｉ［ＩＪ （住人化学工業■製、商品名）、「
ヒタノール２５０１Ｊ （日立化成工業■製１商品名
）等がある。As the phenolic curable resin, rsP-1045J,
rSP-1055J, '5P-1056J, (Sch
manufactured by enectady Chemicals, product name), "Takki Roll 201", [Takki Roll 250-
I~I [IJ (manufactured by Sumima Kagaku Kogyo ■, product name),
There are Hytanol 2501J (1 trade name manufactured by Hitachi Chemical Co., Ltd.), etc.
また加硫活性剤としては金属酸化物（酸化鉄、酸化チタ
ン、酸化マグネシウム、珪酸マグネシウム、二酸化珪素
、酸化亜鉛）、ハロゲン供与体（塩化第１錫、塩化第２
鉄）、ハロゲン供与性重合物（塩素化パラフィン、塩素
化ポリエチレン、クロロスルホン化ポリエチレン、ポリ
クロロブタジェン）がある。Vulcanization activators include metal oxides (iron oxide, titanium oxide, magnesium oxide, magnesium silicate, silicon dioxide, zinc oxide), halogen donors (stannic chloride, sulfur chloride),
iron), halogen-donating polymers (chlorinated paraffin, chlorinated polyethylene, chlorosulfonated polyethylene, polychlorobutadiene).
本発明において用いる組成物にはエクステンダー泊およ
びカーボンブラックが添加できるという特徴をもつため
、耐油性、加工性を良好にすると同時にウェザ−ストリ
ップのコストを下げられるという利点がある。また、該
組成物は熱可塑性エラストマーなのでウェザ−ストリッ
プの再生品のリサイクルが可能であり、部品の価格を安
くできるという利点もある。Since the composition used in the present invention has the feature that extender powder and carbon black can be added, it has the advantage of improving oil resistance and processability and at the same time reducing the cost of weather stripping. Further, since the composition is a thermoplastic elastomer, it is possible to recycle used weatherstrips, which has the advantage that the cost of the parts can be reduced.
本発明のウェザ−ストリップは、組成物を押出成形、射
出成形、ブロー成形等汎用プラスチックで使用されてい
る成形方法により容易に成形することができる。The weatherstrip of the present invention can be easily molded from a composition by molding methods used for general-purpose plastics, such as extrusion molding, injection molding, and blow molding.
（実施例） 以下、本発明を実施例および比較例により説明する。(Example) The present invention will be explained below with reference to Examples and Comparative Examples.
但し実施例および比較例で用いたゴム配合は次の通りで
ある。However, the rubber formulations used in the Examples and Comparative Examples are as follows.
（ｉ）ゴム配合（単位：重量部）
配合成分 配合量ＥＰＤＭゴム１
−ポリプロピレン０混合物 １００カーボンブラツク
６０亜鉛華
５ステアリン酸
１エクステンダー油 ２０
加硫剤 フェノール系加硫剤（ＳＰ−１０５６）
３または硫黄 ２
傘Ｉ ＥＰＤＭゴム： ＥＰ５７Ｃ（日本合成ゴム■製
、商品名）本２ポリプロピレン：ハイポールＪ６００
（三井石油化学■製、商品名）
（ｉｉ）またサンプルの性能試験は、下記の方法により
行った。(i) Rubber compound (unit: parts by weight) Compound component Compound amount EPDM rubber 1
-Polypropylene 0 mixture 100 carbon black
60 zinc white
5 stearic acid
1 extender oil 20
Vulcanizing agent Phenolic vulcanizing agent (SP-1056)
3 or sulfur 2 Umbrella I EPDM rubber: EP57C (manufactured by Japan Synthetic Rubber, trade name) 2 Polypropylene: Hypol J600
(manufactured by Mitsui Petrochemical ■, trade name) (ii) The performance test of the sample was conducted by the following method.
（イ）摩擦係数測定法
試験片 １０ ｃｍＸｌＢｃｍ （ＦＪさ２ｍｍ）測
定圧子 直径１０＋ｎｍのメタルボール圧子（表面クロ
ムメツキ）
荷重 １００ｇ
測定速度 ０．５ ｃｍ７ｍｉｎ
（ロ）圧縮永久歪み、 ＪＩＳＫ６３０１−１０（条件
：１００″ＣＸ２２ｈｒ ２５χ圧縮）施例１〜５、
比較例１〜６
前記ゴム配合に示した配合割合、但しＥＰＤＭゴムとポ
リプロピレン（ＰＰ）の割合、滑剤および加硫剤は表２
に示すものを用い次の操作により実施例１〜５、比較例
１〜６のウェザ−ストリップ用の組成物を作成した。先
ずＥＰＤＭゴム、エクステンダー油、カーボンブラック
、亜鉛華、ステアリン酸、滑剤を指示された割合で含有
したマスターバッチをつくった。次にこのマスターバッ
チにポリプロピレンを１８０°Ｃの油浴温度を有するブ
ラベンダーミキサーで、２．５分間混合し、均一のブレ
ンドをつくった。最後にフェノール系加硫剤（ＳＰ−１
０５６）または硫黄を添加し４分間混合を続け、組成物
を得た。(a) Friction coefficient measurement method test piece 10 cmXlBcm (FJ size 2 mm) Measuring indenter Metal ball indenter with a diameter of 10 + nm (chrome plating on the surface) Load: 100 g Measuring speed: 0.5 cm7 min (b) Compression set, JISK6301-10 (conditions: 100) "CX22hr 25χ compression) Examples 1 to 5,
Comparative Examples 1 to 6 The compounding ratio shown in the above rubber compounding, except that the proportion of EPDM rubber and polypropylene (PP), lubricant and vulcanizing agent are as shown in Table 2.
Compositions for weather strips of Examples 1 to 5 and Comparative Examples 1 to 6 were prepared using the compositions shown in Figure 1 through the following operations. First, a masterbatch containing EPDM rubber, extender oil, carbon black, zinc white, stearic acid, and lubricant in the specified proportions was prepared. This masterbatch was then mixed with polypropylene in a Brabender mixer with an oil bath temperature of 180°C for 2.5 minutes to create a homogeneous blend. Finally, phenolic vulcanizing agent (SP-1
056) or sulfur was added and mixing was continued for 4 minutes to obtain a composition.
上記各組成物を平板（１０ｃｍ Ｘ １８ｃｍ）用金型
で２１０°Ｃで圧縮成形し、各成形物の摺動抵抗及び圧
縮永久歪みを評価し、得た結果を表２に示す。Each of the above compositions was compression molded at 210°C in a flat plate mold (10 cm x 18 cm), and the sliding resistance and compression set of each molded product were evaluated. The obtained results are shown in Table 2.
また上記組成物をウェザ−ストリップ用金型で２１０°
Ｃで圧縮成形し、ウェザ−ストリップを成形した。得ら
れたウェザ−ストリップの内実施例１と比較例１のウェ
ザ−ストリップを車輌に装着し、実車走行を行った際の
異音の発生を評価し、経時変化を表３に示す。In addition, the above composition was heated at 210° in a weather strip mold.
Compression molding was performed using C to form a weather strip. Among the obtained weather strips, the weather strips of Example 1 and Comparative Example 1 were attached to a vehicle, and the generation of abnormal noise was evaluated when the vehicle was driven. Table 3 shows the changes over time.
表３
上記表２により実施例孔は比較測高と比較してポリマー
自体の摺動抵抗が低く滑剤を内添することにより表面処
理をほどこした比較例１と同等の摺動抵抗が得られるこ
とがわかる。滑剤を配合しないまたは滑剤を配合しても
本発明における規定範囲外の少量では、比較例３および
５から摺動抵抗が劣り、多すぎると比較例６のウェザ−
ストリップは外観が劣る。また圧縮永久歪については実
施例孔は比較例１と同等またはそれ以上に良好であるが
、ＥＰＤ？ｌ／ＰＰＯ比が本発明の規定範囲外の比較例
４では劣る。尚、比較例１のウェザ−ストリップでは実
施例孔と比較して耐久性が劣ることを確かめた。Table 3 According to Table 2 above, the sliding resistance of the polymer itself is lower in the example hole than in the comparative height measurement, and sliding resistance equivalent to that of Comparative Example 1, which was surface-treated by adding a lubricant internally, can be obtained. I understand. If a lubricant is not added or if a lubricant is added in a small amount outside the specified range of the present invention, the sliding resistance will be poor as shown in Comparative Examples 3 and 5, and if it is too large, the weather resistance of Comparative Example 6 will be poor.
Strips have poor appearance. In addition, regarding compression set, the Example hole is equivalent to or better than Comparative Example 1, but EPD? Comparative Example 4, in which the l/PPO ratio was outside the specified range of the present invention, was inferior. In addition, it was confirmed that the weather strip of Comparative Example 1 was inferior in durability compared to the example hole.
更に表３から本発明品である実施例１のウェザニストリ
ップは比較例１の従来品と比較して長期に亘り異音が発
生しにくく、耐久性においても優れていることが６１１
Ｌ’ｌされた。Furthermore, Table 3 shows that the weather strip of Example 1, which is a product of the present invention, is less likely to generate abnormal noise over a long period of time and is superior in durability compared to the conventional product of Comparative Example 1.
I was let down.
（発明の効果）
以上説明してきたように、本発明のウェザ−ストリップ
は規定量の熱可塑性結晶ポリオレフィン樹脂を含むエチ
レンプロピレンゴムとの混合物に、該混合物と相溶性が
悪い滑剤を規定量配合し、混合したエチレンプロピレン
ゴムがフェノール系加硫剤により架橋された組成物から
構成されていることにより、加工時不快臭を発生するこ
とな（、ウェザ−ストリップとして圧縮永久歪みが良好
で、摺動抵抗も低くシール性と同時に防音性に優れ、耐
久性が改善される。また再生品のリサイクルが可能であ
るため価格を低減し得るという効果が得られる。(Effects of the Invention) As explained above, the weather strip of the present invention is produced by blending a specified amount of a lubricant with poor compatibility with a mixture of ethylene propylene rubber containing a specified amount of thermoplastic crystalline polyolefin resin into the mixture. Since the composition is composed of mixed ethylene propylene rubber crosslinked with a phenolic vulcanizing agent, it does not generate unpleasant odors during processing (it has good compression set as a weather strip and has good sliding resistance). It has low resistance, excellent sealing properties and soundproofing properties, and improved durability.Furthermore, since recycled products can be recycled, the cost can be reduced.
第１図はウェザ−ストリップの装着モデル図、第２図は
第１図のＡ部のウェザ−ストリップの断面図である。
１・・・フロントドアガラス
２・・・リアドアガラス
３・・・ウェザ−ストリップ
４・・・摺動リップ部
５・・・支持壁部
特許出願人 日産自動車株式会社
代理人弁理士 杉 村 暁 秀FIG. 1 is a model diagram of a weatherstrip installed, and FIG. 2 is a sectional view of the weatherstrip at section A in FIG. 1...Front door glass 2...Rear door glass 3...Weather strip 4...Sliding lip portion 5...Supporting wall Patent applicant: Nissan Motor Co., Ltd. Representative Patent Attorney Akihide Sugimura
Claims (1)
脂と残部がエチレンプロピレンゴムから成る混合物１０
０重量部に対し、該混合物と相溶性が悪い１種以上の滑
剤１．０〜１５．０重量部が配合され、混合したエチレ
ンプロピレンゴムがフェノール系加硫剤により架橋され
ている組成物から構成されていることを特徴とするウェ
ザーストリップ。1. Mixture 10 consisting of 25 to 75% by weight of thermoplastic crystalline polyolefin resin and the balance ethylene propylene rubber
From a composition in which 1.0 to 15.0 parts by weight of one or more lubricants having poor compatibility with the mixture is blended to 0 parts by weight, and the mixed ethylene propylene rubber is crosslinked with a phenolic vulcanizing agent. A weather strip comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62294033A JPH01136816A (en) | 1987-11-24 | 1987-11-24 | Weather strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62294033A JPH01136816A (en) | 1987-11-24 | 1987-11-24 | Weather strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01136816A true JPH01136816A (en) | 1989-05-30 |
Family
ID=17802395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62294033A Pending JPH01136816A (en) | 1987-11-24 | 1987-11-24 | Weather strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01136816A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05238329A (en) * | 1992-02-28 | 1993-09-17 | Kinugawa Rubber Ind Co Ltd | Weather strip for automobile and its manufacture |
| US5858502A (en) * | 1995-09-19 | 1999-01-12 | Tokai Kogyo Kabushiki Kaisha | Weather strip molding |
| JP2000327848A (en) * | 1999-05-18 | 2000-11-28 | Shin Etsu Polymer Co Ltd | Olefin based thermoplastic elastomer composition and vehicle weatherstrip using same |
| WO2016052029A1 (en) * | 2014-09-30 | 2016-04-07 | 豊田合成株式会社 | Method for manufacturing sliding material for weather strip |
| CN107973996A (en) * | 2017-12-08 | 2018-05-01 | 广东技塑新材料股份有限公司 | A kind of low smell and TPV material and preparation method thereof with sterilizing function |
-
1987
- 1987-11-24 JP JP62294033A patent/JPH01136816A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05238329A (en) * | 1992-02-28 | 1993-09-17 | Kinugawa Rubber Ind Co Ltd | Weather strip for automobile and its manufacture |
| US5858502A (en) * | 1995-09-19 | 1999-01-12 | Tokai Kogyo Kabushiki Kaisha | Weather strip molding |
| JP2000327848A (en) * | 1999-05-18 | 2000-11-28 | Shin Etsu Polymer Co Ltd | Olefin based thermoplastic elastomer composition and vehicle weatherstrip using same |
| WO2016052029A1 (en) * | 2014-09-30 | 2016-04-07 | 豊田合成株式会社 | Method for manufacturing sliding material for weather strip |
| US10047201B2 (en) | 2014-09-30 | 2018-08-14 | Toyoda Gosei Co., Ltd. | Method of producing sliding material for weather strips |
| CN107973996A (en) * | 2017-12-08 | 2018-05-01 | 广东技塑新材料股份有限公司 | A kind of low smell and TPV material and preparation method thereof with sterilizing function |
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