JPS63270783A - Reaction injection molding product with insert - Google Patents
Reaction injection molding product with insertInfo
- Publication number
- JPS63270783A JPS63270783A JP10550387A JP10550387A JPS63270783A JP S63270783 A JPS63270783 A JP S63270783A JP 10550387 A JP10550387 A JP 10550387A JP 10550387 A JP10550387 A JP 10550387A JP S63270783 A JPS63270783 A JP S63270783A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- reaction injection
- insert
- injection molding
- polyurethane
- 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.)
- Granted
Links
- 238000010107 reaction injection moulding Methods 0.000 title claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 230000001070 adhesive effect Effects 0.000 claims abstract description 27
- 239000004814 polyurethane Substances 0.000 claims abstract description 23
- 229920002635 polyurethane Polymers 0.000 claims abstract description 23
- 239000012948 isocyanate Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229920001971 elastomer Polymers 0.000 claims abstract description 9
- 239000005060 rubber Substances 0.000 claims abstract description 9
- 239000012790 adhesive layer Substances 0.000 claims abstract description 6
- -1 isocyanate compound Chemical class 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 229920001084 poly(chloroprene) Polymers 0.000 abstract description 8
- 150000002513 isocyanates Chemical class 0.000 abstract description 7
- 239000005056 polyisocyanate Substances 0.000 abstract description 7
- 229920001228 polyisocyanate Polymers 0.000 abstract description 7
- 229920005862 polyol Polymers 0.000 abstract description 7
- 150000003077 polyols Chemical class 0.000 abstract description 7
- 239000012298 atmosphere Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 abstract description 3
- 239000005057 Hexamethylene diisocyanate Substances 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract description 2
- 239000004014 plasticizer Substances 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical group C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical class CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000013638 trimer Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 1
- MTZUIIAIAKMWLI-UHFFFAOYSA-N 1,2-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC=C1N=C=O MTZUIIAIAKMWLI-UHFFFAOYSA-N 0.000 description 1
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 1
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- QOZVPNFFOMWHRW-UHFFFAOYSA-N CCO[SiH3].N=C=O.N=C=O.N=C=O Chemical compound CCO[SiH3].N=C=O.N=C=O.N=C=O QOZVPNFFOMWHRW-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- NIZHERJWXFHGGU-UHFFFAOYSA-N isocyanato(trimethyl)silane Chemical compound C[Si](C)(C)N=C=O NIZHERJWXFHGGU-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
- B29C70/76—Moulding on edges or extremities of the preformed part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、ポリウレタン本体部と金属製インサートとか
らなり、ポリウレタン本体部は反応射出成形により形成
されてなる反応射出成形品に関する。特に自動車のステ
アリングホイール・モール・バンパなと寒暖の差の大き
い環境下で使用され、大きい接着強さく特に剥離強さ）
が要求される製品に好適な発明である。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a reaction injection molded article comprising a polyurethane main body and a metal insert, the polyurethane main body being formed by reaction injection molding. It is especially used in environments with large temperature differences such as steering wheels, moldings, and bumpers of automobiles, and has high adhesive strength and especially peel strength).
This invention is suitable for products that require the following.
〈従来の技術〉
上記のような成形品として、ステアリングホイルを例に
とると、第１図に示す如く、芯金（インサート）１がセ
ットされた下型３を上昇させて上型５と合せて型閉じを
行なった後、ポリオール成分とイソシアネート成分とを
ミキシングヘッドで混合させたポリウレタン材料を上記
型閉じにより形成されたキャビティ７に注入する。こう
してステアリングホイールのホイール本体部（ポリウレ
タン本体部）９が反応射出成形される。このとき、通常
は、ホイール本体部９と芯金１との間に大きい接着強さ
を得るために、クロロブレンゴム（ＣＲ）系接着剤を予
め芯金１に塗布し接着剤層２を形成しておいて、反応射
出成形を行なっていた〈発明が解決しようとする問題点
〉
ところが、ＣＲ系接着剤では、常時大きい接着強さを得
ようとすると、ポリウレタン材料のイソシアネートイン
デックス（ＮＣＯ指数；ｏＨ当量１００に対する）を高
めに設定（通常、１１０前後）する必要があった。しか
し、ポリポリウレタンの物性上（特に硬度）の見地から
は、未反応イソシアネートが多量にポリポリウレタン中
に残存することは望ましくなく、前記接着強さと前記ポ
リポリウレタン物性との二価バランスを採る必要がある
。従って、ＮＧＯ指数の許容範囲（通常ＮＣＯ指数＝１
１０±４）が狭く、その制御を厳しく行なう必要があり
、生産性が良好でなかった。<Prior Art> Taking a steering wheel as an example of the above-mentioned molded product, as shown in FIG. After the mold is closed, a polyurethane material prepared by mixing a polyol component and an isocyanate component with a mixing head is injected into the cavity 7 formed by the mold closing. In this way, the wheel body portion (polyurethane body portion) 9 of the steering wheel is reaction injection molded. At this time, in order to obtain high adhesive strength between the wheel body 9 and the core metal 1, a chloroprene rubber (CR) adhesive is usually applied to the core metal 1 in advance to form an adhesive layer 2. However, when trying to consistently obtain high adhesive strength with CR adhesives, the isocyanate index (NCO index; relative to the oH equivalent of 100) had to be set high (usually around 110). However, from the viewpoint of the physical properties of polyurethane (particularly hardness), it is undesirable for a large amount of unreacted isocyanate to remain in the polypolyurethane, and it is necessary to strike a divalent balance between the adhesive strength and the polyurethane physical properties. be. Therefore, the allowable range of the NGO index (usually NCO index = 1
10±4) was narrow, and it was necessary to strictly control it, resulting in poor productivity.
〈問題点を解決するための手段〉
木６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インサート反応射出成形品
に想到し得た。<Means for Solving the Problems> As a result of intensive development efforts in order to solve the above-mentioned problems, the inventors were able to come up with an insert reaction injection molded product having the following configuration.
ポリウレタン本体部と金属製インサートとからなり、ポ
リウレタン本体部が反応射出成形により形成されてなる
反応射出成形品において、ポリウレタン本体部と金属製
インサートとが、イソシアネート化合物を添加したゴム
系接着剤を介して、一体化されていることを特徴とする
。In a reaction injection molded product consisting of a polyurethane body and a metal insert, where the polyurethane body is formed by reaction injection molding, the polyurethane body and the metal insert are bonded together using a rubber adhesive containing an isocyanate compound. It is characterized by being integrated.
く構成の詳細な説明〉 以下、上記手段の各構成について詳細に説明を行なう。Detailed explanation of the configuration Each configuration of the above means will be explained in detail below.
（１）ポリウレタン本体部は、ポリオール成分とポリイ
ソシアネート成分とを、ＮＣＯ指数；１００〜１２０の
範囲で反応射出成形して形成する。このとき、他の成形
条件は、通常、吐出量；１００〜３００ｇ／秒、吐出圧
：５０〜２００ｋｇｆ／ ｃ ｒｄ、材料温度；２０〜
４０℃とする。(1) The polyurethane main body is formed by reaction injection molding a polyol component and a polyisocyanate component with an NCO index in the range of 100 to 120. At this time, other molding conditions are usually discharge rate: 100 to 300 g/sec, discharge pressure: 50 to 200 kgf/crd, and material temperature: 20 to 300 g/sec.
The temperature shall be 40°C.
上記ポリオール成分及びポリイソシアネート成分は、反
応射出成形に使用可能なものなら、特に限定されない。The polyol component and polyisocyanate component are not particularly limited as long as they can be used in reaction injection molding.
通常、ポリオール成分としてポリエーテル系及び／又は
ポリマーポリオール系、ポリイソシアネート成分として
４．４′−ジフェニルメタンジイソシアネート（ＭＤＩ
）系のものを使用する。このとき、ポリオール成分には
触媒を添加し、さらには適宜、発泡剤、老化防止剤、顔
料等の薬剤を添加する。Usually, the polyol component is polyether type and/or polymer polyol type, and the polyisocyanate component is 4,4'-diphenylmethane diisocyanate (MDI).
) type. At this time, a catalyst is added to the polyol component, and further chemicals such as a blowing agent, anti-aging agent, and pigment are added as appropriate.
（２）金属製インサートの材質は、通常、鋼材又はアル
ミニウム材とする。ここで、インサートは接着剤塗布前
に、脱脂処理、ブラスト処理等の前処理をしておくこと
が望ましい。(2) The material of the metal insert is usually steel or aluminum. Here, it is desirable that the insert be subjected to pretreatment such as degreasing treatment and blasting treatment before applying the adhesive.
（３）ゴム系接着剤としては、クロロブレンゴム（ＣＲ
）系・スチレンブタジェンゴム（ＳＢＲ）系・アクリロ
ニトリルブタジェンゴム（ＮＢＲ）系・天然ゴム系・ブ
チルゴム系などの各接着剤を挙げることができる。初期
接着力の見地から、ＣＲ系のものが望ましい。そして、
このゴム系接着剤には、イソシアネート化合物が添加さ
れている。その添加料は、ゴム分（ポリマー）１００重
量部に対して０゜０１〜５０重量部（望ましくは０゜５
〜２０重量部）とする、なお、これらのゴム系接着剤に
は、通常、樹脂、充填剤、可塑剤、老化防止剤、加硫剤
、加硫促進剤、有機溶剤が適宜配合され、さらには、必
要に応じて反応射出成形用触媒を添加してもよい。(3) As a rubber adhesive, chloroprene rubber (CR
) adhesives, styrene butadiene rubber (SBR) adhesives, acrylonitrile butadiene rubber (NBR) adhesives, natural rubber adhesives, and butyl rubber adhesives. From the standpoint of initial adhesive strength, CR-based adhesives are desirable. and,
An isocyanate compound is added to this rubber adhesive. The additive is added in an amount of 0.01 to 50 parts by weight (preferably 0.5 parts by weight) per 100 parts by weight of the rubber component (polymer).
~20 parts by weight). These rubber adhesives usually contain resins, fillers, plasticizers, anti-aging agents, vulcanizing agents, vulcanization accelerators, and organic solvents as appropriate. If necessary, a reaction injection molding catalyst may be added.
上記で使用するポリイソシアネートとしては、一般にポ
リウレタン材料として使用される下記脂肪族系、芳香族
系のものの他に、さらにはシラン系のものを使用できる
。As the polyisocyanate used above, in addition to the following aliphatic and aromatic polyisocyanates that are generally used as polyurethane materials, silane polyisocyanates can also be used.
（ａ）脂肪族系イソシアネート；
本来の脂肪族イソシアネートの他に脂環式イソシアネー
トも含み、ヘキサメチレンジイソシアネート（ＨＭＤＩ
）、テトレメチレンジイソシアネート、キシレンジイソ
シアネート（ＸＤＩ）、水添キシレンジイソシアネート
（水添ＸＤＩ）、４．４′−メチレンビスジシクロへキ
シルジイソシアネート（Ｈ１２ＭＤＩ）、メチルシクロ
へキシルジイソシアネート（水添ＴＤＩ）、及びイソホ
ロンジイソシアネート（ＩＰＤＩ）等、さらには、取扱
上の見地から、それらを高分子化させたダイマー、トリ
マー、トリメチロールプロパン付加体、プレポリマーな
どを挙げることができる。(a) Aliphatic isocyanate; In addition to the original aliphatic isocyanate, it also includes alicyclic isocyanate, such as hexamethylene diisocyanate (HMDI
), tetramethylene diisocyanate, xylene diisocyanate (XDI), hydrogenated xylene diisocyanate (hydrogenated XDI), 4,4'-methylenebisdicyclohexyl diisocyanate (H12MDI), methylcyclohexyl diisocyanate (hydrogenated TDI), and isophorone Examples include diisocyanate (IPDI), and from the viewpoint of handling, polymerized dimers, trimers, trimethylolpropane adducts, prepolymers, and the like.
（ｂ）芳香族系イソシアネート：
４．４′−ジフェニルメタンジイソシアネート（以下ｒ
ＭＤＩＪと略す）、クルードＭＤＩ、液状ＭＤＩ、
トリレンジイソシアネート、フェニレンジイソシアネー
ト、４．４’、４″−トリフェニルメタントリイソシア
ネート、キシリレンジイソシアネート、４．４′−ジフ
ェニルエーテルジイソシアネート及び１，５−ナフタレ
ンジイソシアナート等、さらには、取扱上の見地から、
それらを高分子化させたダイマー、トリマー、トリメチ
ロールプロパン、プレポリマーなどを挙げることができ
る。(b) Aromatic isocyanate: 4.4'-diphenylmethane diisocyanate (hereinafter referred to as r
(abbreviated as MDIJ), crude MDI, liquid MDI,
Tolylene diisocyanate, phenylene diisocyanate, 4.4', 4''-triphenylmethane triisocyanate, xylylene diisocyanate, 4.4'-diphenyl ether diisocyanate, 1,5-naphthalene diisocyanate, etc., as well as handling considerations. from,
Dimers, trimers, trimethylolpropane, prepolymers, etc., which are polymerized polymers thereof, can be mentioned.
（Ｃ）シラン系イソシアネート；
トリメチルシリルイソシアネート、ジメチルシリルジイ
ソシアネート、メチルシリルトリイソシアネート、ビニ
ルシリルトリイソシアネート、テトライソシアネートシ
ラン、エトキシシラントリイソシアネート等を挙げるこ
とができる。(C) Silane-based isocyanate; Examples include trimethylsilyl isocyanate, dimethylsilyl diisocyanate, methylsilyl triisocyanate, vinylsilyl triisocyanate, tetraisocyanate silane, and ethoxysilane triisocyanate.
（４）上記ゴム系接着剤は、有機溶剤で適宜粘度に調製
して金属製インサートに塗布して、接着剤層を形成する
。ここで、使用する有機溶剤としては、トルエン、キシ
レン、アセトン、ＭＥＫ。(4) The rubber adhesive is adjusted to an appropriate viscosity with an organic solvent and applied to the metal insert to form an adhesive layer. Here, the organic solvents used are toluene, xylene, acetone, and MEK.
ラトラヒドロフラン、塩化メチレン、トリクロロエタン
、トリクロロエチレン、酢酸エチル、酢酸メチル等を挙
げることができる。また、塗布手段は、特に限定されず
、浸漬・刷毛・スプレー等いずれでもよい。Examples include latrahydrofuran, methylene chloride, trichloroethane, trichloroethylene, ethyl acetate, methyl acetate, and the like. Further, the application means is not particularly limited, and may be any method such as dipping, brushing, spraying, etc.
〈発明の作用・効果〉
本発明のインサート反応射出成形品は、上記の如く、ポ
リウレタン本体部と金属製インサートとからなり、ポリ
ウレタン本体部が反応射出成形により形成されてなる反
応射出成形品において、ポリウレタン本体部と金属製イ
ンサートとが、イソシアネート化合物を添加したゴム系
接着剤層を介して、一体化されていることにより、後述
の実施例で示すように、ＮＧＯ指数を高く設定しなくて
も、ポリウレタン本体部と金属製インサートとの間に大
きい接着強さを得ることができる。従って、インサート
反応射出成形に際して、ＮＧＯ指数の制御を厳しくする
必要がなく生産性が向上する〈実施例〉
第２表に示す各処方の接着剤を、鋼板（１００ｘ １５
０ ｘＯ，７ｍｍ）の片面に刷毛塗布（乾燥膜厚；２０
μｍ）してインサートを２枚ずつ調製する、こうして調
製したインサートを金型のキャビティ（４００ｘ４００
ｘ５ｍｍ）に２枚ずつセットした後、第１表に示す処方
のポリウレタン材料を金型内に反応射出成形法に従って
注入した。<Operations and Effects of the Invention> As described above, the insert reaction injection molded product of the present invention is composed of a polyurethane main body and a metal insert, and the polyurethane main body is formed by reaction injection molding. Since the polyurethane main body and the metal insert are integrated through a rubber adhesive layer containing an isocyanate compound, the NGO index can be used without having to set a high NGO index, as shown in the examples below. , a large bond strength can be obtained between the polyurethane body and the metal insert. Therefore, during insert reaction injection molding, there is no need to strictly control the NGO index, and productivity is improved.
0xO, 7mm) on one side (dry film thickness: 20
Prepare two inserts at a time (400
x 5 mm), and then a polyurethane material having the formulation shown in Table 1 was injected into the mold according to the reaction injection molding method.
こうして得た、各実施例・比較例の成形品からそれぞれ
２個ずつ試験片を調製し、常温及び６０℃霊囲気下にお
ける１８０°剥離強さく引張速度； ５０ ■／分）を
測定した。その結果を示す第２表から、各実施例におい
ては、ＮＧＯ指数が１００に設定されていても、従来に
比して格段に大きい接着強さを（常温・高温雰囲気下の
いずれも）示すことが分る。これに対して、イソシアネ
ート無添加のＣＲ系接着剤を用いた比較例においては、
ＮＧＯ指数１００の場合、小さい力で（特に高温雰囲気
下において）剥離してしまった。Two test pieces were prepared from each of the molded articles of Examples and Comparative Examples obtained in this manner, and the 180° peel strength and tensile rate (50 μ/min) at room temperature and 60° C. atmosphere were measured. From Table 2 showing the results, it can be seen that in each example, even if the NGO index was set to 100, it showed significantly greater adhesive strength than the conventional one (both at room temperature and high temperature atmosphere). I understand. On the other hand, in a comparative example using a CR adhesive without isocyanate additives,
In the case of an NGO index of 100, it peeled off with a small force (particularly in a high temperature atmosphere).
第 １ 表
第 ２ 表 ※１）デンカクロロブレン＾−
９０電気化学工業社製※２ンデスモジュールＲノでイエ
１１社製Ｄ：ポリウレタンす体部（被着体破壊）Table 1 Table 2 *1) Denka Chlorobrene^-
90 Manufactured by Denki Kagaku Kogyo Co., Ltd. *2 Dess module R No. 11 Manufactured by Company D: Polyurethane body (destruction of adherend)
第１図は本発明のインサート反応射出成形品の一例であ
るステアリングホイールの成形金型における成形完了時
の断面図である。
１・・・芯金（インサート）
２・・・接着剤層
９・・・ホイール本体部（ポリウレタン本体部）特
許 出 願 人FIG. 1 is a sectional view of a steering wheel, which is an example of the insert reaction injection molded product of the present invention, when molding is completed in a mold. 1...Core metal (insert) 2...Adhesive layer 9...Wheel body part (polyurethane body part) special
person applying for permission
Claims (1)
記ポリウレタン本体部が反応射出成形により形成されて
なる反応射出成形品において、前記ポリウレタン本体部
と金属製インサートとが、 イソシアネート化合物を添加したゴム系接着剤からなる
接着剤層を介して、 一体化されている ことを特徴とするインサート反応射出成形品。[Scope of Claims] A reaction injection molded product comprising a polyurethane main body and a metal insert, wherein the polyurethane main body is formed by reaction injection molding, wherein the polyurethane main body and the metal insert contain an isocyanate compound. An insert reaction injection molded product characterized by being integrated through an adhesive layer made of an added rubber adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10550387A JPH0753857B2 (en) | 1987-04-29 | 1987-04-29 | Insert reaction injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10550387A JPH0753857B2 (en) | 1987-04-29 | 1987-04-29 | Insert reaction injection molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63270783A true JPS63270783A (en) | 1988-11-08 |
| JPH0753857B2 JPH0753857B2 (en) | 1995-06-07 |
Family
ID=14409403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10550387A Expired - Lifetime JPH0753857B2 (en) | 1987-04-29 | 1987-04-29 | Insert reaction injection molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753857B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639443A2 (en) * | 1993-08-05 | 1995-02-22 | Nibco Inc. | Reaction injection molded valve and method for producing same |
| US6779572B2 (en) | 2000-09-11 | 2004-08-24 | Dow Global Technologies Inc. | Run flat tire support and colorant therefor |
| JP2008238553A (en) * | 2007-03-27 | 2008-10-09 | Toyo Tire & Rubber Co Ltd | Sandwich panel manufacturing equipment and sandwich panel manufacturing process |
| JP2019051931A (en) * | 2017-09-07 | 2019-04-04 | コンパニ プラスティック オムニウム | Monobloc part forming front bloc comprising absorption system and aerodynamic system |
| CN113815170A (en) * | 2021-08-20 | 2021-12-21 | 建新赵氏科技有限公司 | Bonding process of automobile vibration damper |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003326553A (en) | 2002-05-14 | 2003-11-19 | Toyoda Gosei Co Ltd | Resin molded part/metal structure |
-
1987
- 1987-04-29 JP JP10550387A patent/JPH0753857B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639443A2 (en) * | 1993-08-05 | 1995-02-22 | Nibco Inc. | Reaction injection molded valve and method for producing same |
| EP0639443A3 (en) * | 1993-08-05 | 1996-01-31 | Nibco | Reaction injection molded valve and method for producing same. |
| US6779572B2 (en) | 2000-09-11 | 2004-08-24 | Dow Global Technologies Inc. | Run flat tire support and colorant therefor |
| US6989065B2 (en) | 2000-09-11 | 2006-01-24 | The Dow Chemical Company | Method of manufacturing a filament formed reinforcement member and a run flat tire support therewith |
| JP2008238553A (en) * | 2007-03-27 | 2008-10-09 | Toyo Tire & Rubber Co Ltd | Sandwich panel manufacturing equipment and sandwich panel manufacturing process |
| JP2019051931A (en) * | 2017-09-07 | 2019-04-04 | コンパニ プラスティック オムニウム | Monobloc part forming front bloc comprising absorption system and aerodynamic system |
| CN113815170A (en) * | 2021-08-20 | 2021-12-21 | 建新赵氏科技有限公司 | Bonding process of automobile vibration damper |
| CN113815170B (en) * | 2021-08-20 | 2023-09-01 | 建新赵氏科技股份有限公司 | Bonding process of automobile vibration damper |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0753857B2 (en) | 1995-06-07 |
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| EXPY | Cancellation because of completion of term |