JPH0674046B2 - Urethane coated steering wheel - Google Patents
Urethane coated steering wheelInfo
- Publication number
- JPH0674046B2 JPH0674046B2 JP62247488A JP24748887A JPH0674046B2 JP H0674046 B2 JPH0674046 B2 JP H0674046B2 JP 62247488 A JP62247488 A JP 62247488A JP 24748887 A JP24748887 A JP 24748887A JP H0674046 B2 JPH0674046 B2 JP H0674046B2
- Authority
- JP
- Japan
- Prior art keywords
- urethane
- modified
- mdi
- steering wheel
- modified product
- 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.)
- Expired - Lifetime
Links
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title claims description 25
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 19
- 229920005862 polyol Polymers 0.000 claims description 16
- 150000003077 polyols Chemical class 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 13
- 229920001228 polyisocyanate Polymers 0.000 claims description 11
- 239000005056 polyisocyanate Substances 0.000 claims description 11
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 9
- 229920000570 polyether Polymers 0.000 claims description 9
- 150000001718 carbodiimides Chemical class 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 125000003827 glycol group Chemical group 0.000 claims description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 6
- 229920005830 Polyurethane Foam Polymers 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000011496 polyurethane foam Substances 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 206010016322 Feeling abnormal Diseases 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- -1 acryl Chemical group 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 238000010107 reaction injection moulding Methods 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000006114 decarboxylation reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- UKODFQOELJFMII-UHFFFAOYSA-N pentamethyldiethylenetriamine Chemical compound CN(C)CCN(C)CCN(C)C UKODFQOELJFMII-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Steering Controls (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、芯金部と被覆部とからなり、被覆部が半硬質
ポリウレタンのインテグラルスキンフオームからなるス
テアリングホイールに関する。DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a steering wheel that includes a cored bar portion and a coating portion, and the coating portion includes an integral skin foam of semi-rigid polyurethane.
〈従来の技術〉 この種のステアリングホイールにおける半硬質ウレタン
フオームは、通常、ポリエーテルポリオールからなるポ
リオール成分と、4,4′−ジフエニルメタンジイソシア
ネート（MDI）系のポリイソシアネート成分とを略当量
比で衝突混合させて形成する反応射出成形（RIM）によ
り成形していた。そして、被覆部の表面硬度が温度によ
り大きく変化しないように、即ち、温度依存性を小さく
する見地から、特開昭60-195118号公報において、下記
構成のポリウレタンフオーム材料で成形されたステアリ
ングホイールが提案されている。<Prior Art> A semi-rigid urethane foam for a steering wheel of this type usually has a polyol component composed of a polyether polyol and a polyisocyanate component of 4,4′-diphenylmethane diisocyanate (MDI) in an approximately equivalent ratio. It was formed by reaction injection molding (RIM), which is formed by collision-mixing in. Then, in order to prevent the surface hardness of the coated portion from largely changing with temperature, that is, from the viewpoint of reducing the temperature dependence, in Japanese Patent Laid-Open No. 60-195118, a steering wheel molded of a polyurethane foam material having the following configuration is used. Proposed.
第１図に示す如く芯金部１と被覆部３とからなり、被覆
部３が半硬質ポリウレタンのインテグラルスキンフオー
ムからなり、半硬質ポリウレタンのポリオール成分がポ
リエーテルポリオール系であり、ポリイソシアネート成
分が、部分変性MDIとポリメリツクMDIとを所定比とした
混合系である。As shown in FIG. 1, it comprises a core metal portion 1 and a coating portion 3, the coating portion 3 comprises an integral skin foam of semi-rigid polyurethane, the polyol component of the semi-rigid polyurethane is a polyether polyol type, and the polyisocyanate component is Is a mixed system in which the partially modified MDI and the polymer MDI have a predetermined ratio.
ここで部分変性MDIとは、MDIがグリコールと付加反応し
ウレタン結合を有するポリイソシアネート化合物に変性
されるウレタン変性体や、MDIが相互に脱炭酸縮合反応
してカルボジイミド結合を有するポリイソシアネートに
変性されるカルボジイミド変性体をいう。Here, the partially modified MDI is a urethane modified product in which MDI is added to glycol to be modified into a polyisocyanate compound having a urethane bond, or MDI is modified to a polyisocyanate having a carbodiimide bond by a decarboxylation condensation reaction with each other. Carbodiimide modified product.
これらの変性体を使用する理由は、ポリイソシアネート
のNCO％の調製と、本来粉末状であるMDIを液状化して取
り扱いを容易にするためである。また、ウレタン変性に
使用するグリコールは、通常、平均分子量500以下の低
分子量のものを使用していた。The reason for using these modified products is to prepare the NCO% of the polyisocyanate and to liquefy the MDI which is originally a powder to facilitate handling. Further, the glycol used for urethane modification is usually a low molecular weight one having an average molecular weight of 500 or less.
また、ポリメリツクMDIとは、一般にクルードMDIを含
む、繰返数２〜４のポリメチレンポリフエニルイソシア
ネートのことである。Further, the polymer MDI is a polymethylene polyphenyl isocyanate having a repetition number of 2 to 4, which generally contains crude MDI.
〈発明が解決しようとする問題〉 上記構成のステアリングホイールの場合、被覆部の温度
依存性はある程度改善できる。しかし、表面のソフト感
を向上させるために、被覆部を構成するウレタンフオー
ムの密度を小さくすると、ウレタンフオームの反発弾性
力が大きく低下して（ホイールのリング部を手で強く把
持したとき、手に底着き感をもたらしやすい）望ましく
ない。<Problems to be Solved by the Invention> In the case of the steering wheel having the above configuration, the temperature dependence of the coating portion can be improved to some extent. However, if the density of the urethane foam that forms the coating is reduced to improve the softness of the surface, the repulsive resilience of the urethane foam decreases significantly (when the wheel ring is strongly gripped by hand, It tends to cause bottoming out).
〈問題点を解決するための手段〉 本発明者らは、上記問題点を解決するために、鋭意開発
に努力をした結果、下記構成のウレタン被覆ステアリン
グホイールに想到した。<Means for Solving Problems> The inventors of the present invention have devised an effort to solve the above problems, and as a result, have conceived a urethane-coated steering wheel having the following structure.
芯金部と被覆部とからなり、被覆部が半硬質ポリウレタ
ンのインテグラルスキンフオームからなり、半硬質ポリ
ウタンのポリオール成分がポリエーテルポリオール系で
あり、ポリイソシアネート成分が、部分変性MDI/ポリメ
リツクMDI＝9/1〜6/4（重量比）の混合系である、ウレ
ンタ被覆ステアリングホイールにおいて、部分変性MDI
として、カルボジミド変性体及びウレタン変性体の双方
を含むものが使用され、上記ウレタン変性体が、平均分
子量1000〜6000のグリコールで変成されていることを特
徴とする。Consists of a cored bar and a coating, the coating consists of an integral skin foam of semi-rigid polyurethane, the polyol component of semi-rigid polyutane is a polyether polyol system, and the polyisocyanate component is a partially modified MDI / Polymeric MDI = Partially modified MDI in Urenta-coated steering wheel, which is a mixed system of 9/1 to 6/4 (weight ratio)
A compound containing both a carbodiimide modified product and a urethane modified product is used, and the urethane modified product is modified with a glycol having an average molecular weight of 1000 to 6000.
〈実施の態様〉 本発明のステアリングホイールの被覆部は、半硬質ポリ
ウレタンフオーム材料である下記ポリオール成分と、下
記ポリイソシナネート成分とを、略当量比で衝突混合さ
せて、芯金がセツトされた型内に射出して、いわゆるRI
Mにより成形する。<Embodiment> The coating portion of the steering wheel of the present invention is prepared by colliding and mixing the following polyol component, which is a semi-rigid polyurethane foam material, and the following polyisocyanate component in an approximately equivalent ratio to set the core metal. So called RI
Mold with M.
（１）ポリオール成分としては、下記ポリエーテルポリ
オール、又は、それらにアクリル、スチレン等のビニ
ルポリマーを重合させたポリマーポリオールなどのポリ
エーテル系のものを単独又は複数組合せて使用する。な
お、ポリエステル系では、主鎖中に極性原子団（COO）
を繰り返し含み、表面にソフト感を有するポリウレタン
フオームを得難い。(1) As the polyol component, the following polyether polyols or polyether-based ones such as polymer polyols obtained by polymerizing vinyl polymers such as acryl and styrene are used alone or in combination. In addition, in the polyester type, polar atomic groups (COO) in the main chain
It is difficult to obtain a polyurethane foam having a soft feeling on the surface.
ポリエーテルポリオール…エチレンオキシド、プロピ
レンオキシド、ブチレンオキシド等のアルキレンオキシ
ドの単独重合又は共重合させた二官能体で分子量2000〜
7000のもの、さらには、それらのアルキレンオキシドと
グリセリン、トリメチロールプロパン等との共重合させ
た三官能体で平均分子量3000〜8000のもの。Polyether polyol: a difunctional compound obtained by homopolymerization or copolymerization of alkylene oxides such as ethylene oxide, propylene oxide and butylene oxide, and a molecular weight of 2000-
7,000, and trifunctional compounds obtained by copolymerizing alkylene oxides with glycerin, trimethylolpropane, etc. and having an average molecular weight of 3,000 to 8,000.
ここでは、ポリオール成分には、通常、下記例示の架
橋剤、触媒、及び、フレオン（デユポン社商品名）等
の発泡剤を、さらには、適宜、顔料、酸化防止剤、紫外
線吸収剤を添加して使用する。Here, the polyol component is usually added with a crosslinking agent, a catalyst, and a foaming agent such as Freon (trade name of Dyupon Co., Ltd.), as well as a pigment, an antioxidant, and an ultraviolet absorber, as appropriate. To use.
架橋剤…エチレングリコール、ジエチレングリコー
ル、トリエタノールアミン、プロピレングリコール、1,
4−ブタンジオール、グリセリン等。Cross-linking agent: ethylene glycol, diethylene glycol, triethanolamine, propylene glycol, 1,
4-butanediol, glycerin and the like.
触媒…トリエチレンジアミン、トリエチルアミン、Ｎ
−ジメチルシクロヘキシルアミン、N,N−ジメチルエタ
ノールアミン、N,N−ジエチルエタノールアミン、ペン
タメチルジエチレントリアミン、ジブチル錫ジラウレー
ト、オクチル酸第一錫、オクチル酸コバルト等。Catalyst: triethylenediamine, triethylamine, N
-Dimethylcyclohexylamine, N, N-dimethylethanolamine, N, N-diethylethanolamine, pentamethyldiethylenetriamine, dibutyltin dilaurate, stannous octylate, cobalt octylate and the like.
（２）ポリイソシアネート成分としては、部分変性MDI/
ポリメリツクMDI＝9/1〜6/4（重量比）の混合系のもの
を使用する。そして、部分変性MDIは、カルボジイミド
変性体及びウレタン変性体の双方を含むものであり。こ
こで、カルボジイミド変性体には、ウレタン変性体をカ
ルボジイミド変性したもの、ウレタン変性体には、カル
ボジイミド変性体をウレタン変性したものも含む。(2) As the polyisocyanate component, partially modified MDI /
Use a mixed type of polymer MDI = 9/1 to 6/4 (weight ratio). The partially modified MDI includes both a carbodiimide modified product and a urethane modified product. Here, the carbodiimide modified product includes a carbodiimide modified product of a urethane modified product, and the urethane modified product also includes a carbodiimide modified product of a urethane modified product.
さらに、ウレタン変性体は、平均分子量1000〜6000のポ
リエーテルグリコール、具体的には、ポリプロピレング
リコール（PPG）、ポリエチレンプロピレングリコー
ル、ポリブチレンプロピレングリコール等で変性されて
いる。Furthermore, the urethane modified product is modified with a polyether glycol having an average molecular weight of 1000 to 6000, specifically, polypropylene glycol (PPG), polyethylene propylene glycol, polybutylene propylene glycol and the like.
上記において、部分変性MDIとのポリメリツクMDIの混合
比が、上記数値範囲外では、ポリウレタンフオーム硬度
の温度依存性が大きくなり、また、部分変性MDIが多過
ぎると、反発弾性力が小さくなり、また、ポリメリツク
MDIが多過ぎると、ポリウレタンフオームにおけるイン
テグラルスキン層に十分な引き裂き強さ及び引っ張り強
さが得難い。また、ウレタン変性に使用するグリコール
として上記平均分子量より小さいものを使用するとフオ
ームが固くなり、上記平均分子量より大きなものを使用
するとフオームが柔かくなり、物性が著しく低下する。In the above, the mixing ratio of the partially modified MDI and the polymer MDI is out of the above numerical range, the temperature dependence of the polyurethane foam hardness becomes large, and when the amount of the partially modified MDI is too large, the impact resilience becomes small, and , Polymeric
If the MDI is too large, it is difficult to obtain sufficient tear strength and tensile strength for the integral skin layer of the polyurethane foam. Further, when a glycol having a smaller average molecular weight is used as the glycol used for the urethane modification, the foam becomes hard, and when a glycol having a larger average molecular weight is used, the foam becomes soft and the physical properties are remarkably deteriorated.
〈発明の作用・効果〉 本発明のウレタン被覆ステアリングホイールは、上記の
如く、芯金部と被覆部とからなり、被覆部が半硬質ポリ
ウレタンのインデグラルスキンフオームからなり、半硬
質ポリウレタンのポリオール成分がポリエーテルポリオ
ール系であり、ポリイソシアネート成分が、部分変性MD
I/ポリメリツクMDI＝9/1〜6/4（重量比）の混合系であ
る、ウレタン被覆ステアリングホイールにおいて、部分
変性MDIとして、カルボジイミド変性体及びウレタン変
性体の双方を含むものが使用され、上記ウレタン変性体
が、平均分子量1000〜6000のグリコールで変性されてい
ることにより下記のような作用・効果を奏する。<Operations and Effects of the Invention> As described above, the urethane-coated steering wheel of the present invention comprises the core metal portion and the coating portion, and the coating portion comprises the integral skin foam of semi-rigid polyurethane, and the polyol component of semi-rigid polyurethane. Is a polyether polyol system, and the polyisocyanate component is a partially modified MD.
In a urethane-coated steering wheel that is a mixed system of I / Polymeric MDI = 9/1 to 6/4 (weight ratio), a partially modified MDI containing both a carbodiimide modified product and a urethane modified product is used. The urethane modified product exhibits the following actions and effects by being modified with glycol having an average molecular weight of 1000 to 6000.
（１）表面のソフト感を向上させるために、被覆部を構
成するウタレンフオームの密度を小さくしても、ウレタ
ンフオームの反発弾性力の低下が小さく、ホイールのリ
ング部を手で把持したとき底着き感をもたらすおそれが
ない。(1) Even if the density of the urethan foam forming the covering portion is reduced in order to improve the soft feeling of the surface, the reduction in the repulsive elastic force of the urethane foam is small, and the ring portion of the wheel is gripped by hand. There is no risk of bottoming out.
（２）被覆部表面におけるインテグラルスキン層の硬度
の温度依存性も小さくなり、リング部把持時、車内の雰
囲気温度に影響されない分安定したソフト感を得ること
ができる。(2) The temperature dependence of the hardness of the integral skin layer on the surface of the coated portion is also reduced, and a stable soft feeling can be obtained when the ring portion is gripped, as long as it is not affected by the ambient temperature in the vehicle.
〈実施例〉 以下本発明の効果を確認するために行なつた実施例につ
いて、比較例とともに説明をする。<Examples> Examples performed to confirm the effects of the present invention will be described below together with comparative examples.
第１表に示す組成の各ウレタンフオーム材料を用いて、
芯金上に被覆部をRIMにより成形した。このときポリイ
ソシアネートＩ・II・IIIは、それぞれ第２表に示す仕
様のものを使用した。Using each urethane foam material having the composition shown in Table 1,
The coating was formed on the core metal by RIM. At this time, the polyisocyanates I, II, and III used had the specifications shown in Table 2, respectively.
上記被覆部から試験片（100×350×5mm）を得、各試験
片について、密度、硬度及び反発弾性（JISK6301）の各
物性をそれぞれ測定した。測定結果を第１表にに示す
が、本発明の実施例は、比較例に比して、密度及び硬度
が低くても、反発弾性力は高いことが分る。A test piece (100 × 350 × 5 mm) was obtained from the above coated portion, and each physical property of density, hardness and impact resilience (JIS K6301) was measured for each test piece. The measurement results are shown in Table 1. It can be seen that the examples of the present invention have a high impact resilience even when the density and hardness are low, as compared with the comparative examples.
また、実施例１及び比較例については、表面硬度の温度
依存性を、−20〜100℃の範囲にわたつて20℃間隔で測
定した。その結果を第２図に示すが、本発明の実施例
は、温度依存性も従来例に比して小さくなつていること
が分る。Further, in Example 1 and Comparative Example, the temperature dependence of the surface hardness was measured at intervals of 20 ° C over the range of -20 to 100 ° C. The results are shown in FIG. 2, and it can be seen that the temperature dependence of the embodiment of the present invention is smaller than that of the conventional example.
なお、第２図の比較例は、第１表の配合の比較例におい
て、高発泡として硬さを20℃におけるシヨア硬度が60と
なるように調整したものである。The comparative example of FIG. 2 is the comparative example of the composition of Table 1 which is adjusted to have a high foaming hardness and a shear hardness of 60 at 20 ° C.
第１図は本発明を適用するステアリングホイールの切り
欠き部分斜視図、第２図は実施例１及び比較例のウレタ
ンフオームにおける表面硬度の温度依存特性を測定した
結果を示すグラフ図である。 １……芯金部、 ２……被覆部。FIG. 1 is a cutaway partial perspective view of a steering wheel to which the present invention is applied, and FIG. 2 is a graph showing the results of measuring the temperature dependence of the surface hardness of the urethane foams of Example 1 and Comparative Example. 1 ... Core bar part, 2 ... Cover part.
Claims (1)
オームからなり、 前記半硬質ポリウレタンのポリオール成分がポリエーテ
ルポリオール系であり、ポリイソシアネート成分が、部
分変性MDI/ポリメリツクMDI＝9/1〜6/4（重量比）の混
合系である、ウレタン被覆ステアリングホイールにおい
て、 前記部分変性MDIとして、カルボジイミド変性体及びウ
レタン変性体の双方を含むものが使用され、 前記ウレタン変性体が、平均分子量1000〜6000のグリコ
ールで変性されている ことを特徴とするウレタン被覆ステアリングホイール。1. A core metal part and a coating part, wherein the coating part is an integral skin foam of semi-rigid polyurethane, the polyol component of the semi-rigid polyurethane is a polyether polyol type, and the polyisocyanate component is In the urethane-coated steering wheel, which is a mixed system of partially modified MDI / polymeric MDI = 9/1 to 6/4 (weight ratio), a partially modified MDI containing both a carbodiimide modified product and a urethane modified product is used. The urethane-modified steering wheel is characterized in that the urethane-modified product is modified with glycol having an average molecular weight of 1000 to 6000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62247488A JPH0674046B2 (en) | 1987-09-30 | 1987-09-30 | Urethane coated steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62247488A JPH0674046B2 (en) | 1987-09-30 | 1987-09-30 | Urethane coated steering wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6490868A JPS6490868A (en) | 1989-04-07 |
| JPH0674046B2 true JPH0674046B2 (en) | 1994-09-21 |
Family
ID=17164212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62247488A Expired - Lifetime JPH0674046B2 (en) | 1987-09-30 | 1987-09-30 | Urethane coated steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0674046B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020059482A1 (en) | 2018-09-19 | 2020-03-26 | 住友ゴム工業株式会社 | Pneumatic tire |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000211530A (en) * | 1999-01-25 | 2000-08-02 | Nippon Plast Co Ltd | Steering wheel and manufacture thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60195118A (en) * | 1984-03-15 | 1985-10-03 | Toyoda Gosei Co Ltd | Urethane handle |
| JPS6131421A (en) * | 1984-07-23 | 1986-02-13 | Sumitomo Bayer Urethane Kk | Production of polyurethane resin |
| JPH0635654B2 (en) * | 1985-08-13 | 1994-05-11 | 住友特殊金属株式会社 | Target material with high stability of thin-film magnetic properties against atmospheric changes |
| JPH0680106B2 (en) * | 1985-11-11 | 1994-10-12 | トヨタ自動車株式会社 | Method for producing polyurethane foam |
-
1987
- 1987-09-30 JP JP62247488A patent/JPH0674046B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020059482A1 (en) | 2018-09-19 | 2020-03-26 | 住友ゴム工業株式会社 | Pneumatic tire |
| US20210206209A1 (en) * | 2018-09-19 | 2021-07-08 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6490868A (en) | 1989-04-07 |
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