JPH03240530A - Rubber laminate with finished film layer - Google Patents
Rubber laminate with finished film layerInfo
- Publication number
- JPH03240530A JPH03240530A JP3788490A JP3788490A JPH03240530A JP H03240530 A JPH03240530 A JP H03240530A JP 3788490 A JP3788490 A JP 3788490A JP 3788490 A JP3788490 A JP 3788490A JP H03240530 A JPH03240530 A JP H03240530A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- layer
- pvc
- film layer
- adhesive layer
- 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
- 229920001971 elastomer Polymers 0.000 title claims abstract description 90
- 239000005060 rubber Substances 0.000 title claims abstract description 90
- 239000010410 layer Substances 0.000 claims abstract description 62
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 239000005002 finish coating Substances 0.000 claims description 26
- 239000011247 coating layer Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000012790 adhesive layer Substances 0.000 abstract description 34
- 239000000463 material Substances 0.000 abstract description 10
- 239000006260 foam Substances 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 25
- 239000004800 polyvinyl chloride Substances 0.000 description 25
- 239000000758 substrate Substances 0.000 description 21
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 12
- 229920003048 styrene butadiene rubber Polymers 0.000 description 8
- 239000002174 Styrene-butadiene Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229920000459 Nitrile rubber Polymers 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000004014 plasticizer Substances 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000004088 foaming agent Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 2
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- -1 ethylene propylene diene Chemical class 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 206010016322 Feeling abnormal Diseases 0.000 description 1
- 229920001944 Plastisol Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、EPDM製のゴム基1体」二に、PvCゲル
化層て仕上げ塗膜層が形成されているゴム積層体に関す
る。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a rubber laminate comprising an EPDM rubber base, a PvC gelling layer, and a finishing coating layer.
本発明の仕上げ塗膜層付きゴム積層体を適用可能な製品
としては、ウィンドウエサストリップ(第1図)、カラ
スウェザストリップ(第2図)、サイトモール(第3図
)等を挙げることができる本明細書て使用するポリマー
・可塑剤略号の覧を下記に示す。Examples of products to which the rubber laminate with a finish coating layer of the present invention can be applied include window bait strips (Fig. 1), crow weather strips (Fig. 2), and site moldings (Fig. 3). A list of polymer/plasticizer abbreviations used herein is shown below.
NBR・・・ニトリルゴムを代表とする、α、β不飽和
ニトリルー共役ジエン系共重合体ゴム、EPDM・・・
エチレンプロピレンジエン三元系ゴムを代表とする、エ
チレン−α−オレフィー非共役ジエン共重合体ゴム、
SBR・・・スチレンブタジェンゴムを代表とする、芳
香族ビニル化合物−共役ジエン系共重合体ゴム。NBR... α, β unsaturated nitrile-conjugated diene copolymer rubber represented by nitrile rubber, EPDM...
Ethylene-α-olephy non-conjugated diene copolymer rubber, typified by ethylene propylene diene ternary rubber; SBR: aromatic vinyl compound-conjugated diene copolymer rubber, typified by styrene butadiene rubber. .
pvc・・・ポリ塩化ビニル、 DOP・・・フタル酸ジオクチル。pvc...polyvinyl chloride, DOP: Dioctyl phthalate.
〈従来の技術〉
ここては、自動車用のウィンドウェザストリップを例に
採り説明するが、これに限られるものではない。<Prior Art> Here, explanation will be given using a window weather strip for an automobile as an example, but the present invention is not limited to this.
自動車等に使用されるウェザストリップの本体は、通常
、耐候性・耐オゾン性、耐熱性等の見地からEPDM製
であるものがうぃ。The main bodies of weather strips used in automobiles and the like are usually made of EPDM from the viewpoint of weather resistance, ozone resistance, heat resistance, etc.
そして、昨今の自動車における意匠性向上要求の高まり
から、ウェザストリップの意匠面が鮮やかなかつ深みの
ある黒色ないしは有彩色であるものの出現が待望されて
いる。In addition, due to the increasing demand for improved design in automobiles in recent years, it has been eagerly awaited for the appearance of weatherstrips whose design surfaces are bright and deep black or chromatic colors.
しかし、ゴム積層体の成形表面自体に、鮮やかなかつ深
みのある黒色ないし有彩色を得ることはゴム材料自体の
特性」−はとんど困難であった。However, it has been extremely difficult to obtain a vivid and deep black or chromatic color on the molded surface of the rubber laminate due to the characteristics of the rubber material itself.
このため、本発明者は、鋭意、開発に努力をした結果、
鮮やかな着色が容易であるとともに厚肉塗膜層(略50
μm以上)が容易に形成てき、しかも、耐候性が良好で
剛性・硬度の調製も容易なPVCペーストのゲル化層て
仕上げ塗膜層を形成することに想到した(特願昭63−
334550334551号参照 出願時未公開)。Therefore, as a result of the inventor's earnest efforts in development,
Vibrant coloring is easy and a thick coating layer (approximately 50
We came up with the idea of forming a finishing coating layer using a gelled layer of PVC paste, which can be easily formed (micrometer or larger), has good weather resistance, and is easy to adjust the rigidity and hardness.
See No. 334550334551 (unpublished at the time of filing).
〈発明が解決しようとする課題〉
しかし、ゴム基体がEPDM製の場合、ゴム基体上に直
接、pvcペーストの加熱ゲル化層を密着性良好に形成
することは困難であった。このため、前処理として、加
硫ゴム表面のパフ処理、ブライマー処理等か必要である
。これらの前処理は多くの工数を必要とする。<Problems to be Solved by the Invention> However, when the rubber substrate is made of EPDM, it is difficult to form a heated gelling layer of PVC paste directly on the rubber substrate with good adhesion. Therefore, as pre-treatment, it is necessary to perform a puff treatment, a brimer treatment, etc. on the surface of the vulcanized rubber. These pretreatments require many man-hours.
本発明は、上記にかんがみて、工数の嵩む前処理をしな
くても、ゴム積層体とPvcゲル化層で形成された仕上
げ塗膜層との密着性か良好である仕上げ塗膜層イ」きゴ
ム積層体を提供することを目的とする。In view of the above, the present invention provides a finish coating layer that has good adhesion between a rubber laminate and a finish coating layer formed of a PVC gelling layer without the need for pretreatment that requires a lot of man-hours. The purpose of the present invention is to provide a rubber laminate.
〈課題を解決するための手段〉
本発明の仕」二げ塗膜付きゴム積層体は、下記構成によ
り、上記課題を解決するものである。<Means for Solving the Problems> The rubber laminate with a finishing coat of the present invention solves the above problems by having the following configuration.
EPDM製のゴム基体上に、PVCゲル化層で仕上げ塗
膜層が形成されているゴム積層体において、ゴム基体と
仕−ヒげ塗膜層との間に、NBR40〜80重量%、E
PDM : 20〜60重量%、SBR・0〜35重量
%である組成のブレンドゴムをゴム成分とする発泡処方
のゴム配合物からなる接着剤層が介在していることを特
徴とする。In a rubber laminate in which a finish coating layer is formed of a PVC gelling layer on a rubber substrate made of EPDM, 40 to 80% by weight of NBR and E are added between the rubber substrate and the finish coating layer.
PDM: It is characterized by an intervening adhesive layer consisting of a foamed rubber compound whose rubber component is a blended rubber with a composition of 20 to 60% by weight and 0 to 35% by weight of SBR.
〈手段の詳細な説明〉 以下本発明の手段について詳細に説明をする。<Detailed explanation of means> The means of the present invention will be explained in detail below.
なお、以下の説明で配合単位を示す「部J、「%Jは、
特にことわらない限り、重量単位である。In addition, in the following explanation, "part J" and "%J" indicating the compounding unit are
Units are by weight unless otherwise specified.
第1〜3図は、本発明を適用可能なゴム積層体を示し、
第1図はウィンドウェザストリップの、第2図はガラス
ウェザストリップの、第3図はサイトモールの各断面図
である。1 to 3 show rubber laminates to which the present invention can be applied,
FIG. 1 is a cross-sectional view of a window weather strip, FIG. 2 is a cross-sectional view of a glass weather strip, and FIG. 3 is a cross-sectional view of a site molding.
(1)ゴム基体1はEPDM製である。(1) The rubber base 1 is made of EPDM.
ここでEPDMとは、エチレン、α−オレフィン(ex
プロピレン)に第三成分としてエチリデンノルボル
ネン、ジシクロペンタジェン、1,4−へキサジエン等
の非共役ジエンを微量添加し、共重合させて側鎖に二重
結合を導入し硫黄加硫可能としたものである。そして、
当該ポリマーには、通常、補強性充填剤(カーボンブラ
ックまたホワイトカーボン)、可塑剤、滑剤、加硫系薬
剤等の副’J $Jを配合する。第1表に本実施例て使
用可能なEPDMゴム配合物の処方を示す。Here, EPDM refers to ethylene, α-olefin (ex
A small amount of non-conjugated diene such as ethylidenenorbornene, dicyclopentadiene, and 1,4-hexadiene was added as a third component to (propylene) and copolymerized to introduce a double bond into the side chain, making it sulfur vulcanizable. It is something. and,
The polymer is usually blended with additives such as a reinforcing filler (carbon black or white carbon), a plasticizer, a lubricant, a vulcanizing agent, and the like. Table 1 shows the formulation of the EPDM rubber compound that can be used in this example.
(2)そして、ゴム基体1の意匠面り上に、PVCゲル
化層て仕上げ塗膜層3が形成されている。(2) Then, on the designed surface of the rubber substrate 1, a finishing coating layer 3, which is a PVC gelling layer, is formed.
ここで、PVCペーストとは、数μm以下の粒子径の微
細なペースト用レジンを、可塑剤中又は可塑剤に希釈剤
を添加した分散媒中に分散させてペースト状としたプラ
スチゾル又はオルガノゾルであって、何形後、加熱溶融
によりゲル化(硬化)させるものであり、塗料として使
用した場合、溶剤型塗料に比して、成膜操作による重量
変化がなく(固形分濃度時100%)、−回の塗装によ
る付着量も大きく、さらには、火災・衛生上の危険性も
ほとんどない(「プラスチック加工技術便覧」日刊工業
新聞社列、昭和52年12月20日発行、第485〜4
86頁参照)。そしてこのP■Cペーストには、通常、
安定剤、カーボンブラック又は着色剤(顔料、染料)等
の副資材、さらには、PVCゲル化層を発泡タイプとす
る場合は、発泡剤を配合しておく。Here, PVC paste is plastisol or organosol made into a paste by dispersing fine paste resin with a particle size of several μm or less in a plasticizer or a dispersion medium containing a plasticizer and a diluent. After forming, it is gelled (hardened) by heating and melting, and when used as a paint, there is no weight change due to the film forming operation (100% at solid content concentration), compared to solvent-based paints. -The amount of adhesion after coating is large, and furthermore, there is almost no fire or hygiene hazard ("Plastic Processing Technology Handbook" Nikkan Kogyo Shimbun Sha Series, published December 20, 1978, Nos. 485-4)
(See page 86). And this P■C paste usually includes
Auxiliary materials such as stabilizers, carbon black, or coloring agents (pigments, dyes), and, if the PVC gel layer is of a foaming type, a foaming agent is blended in advance.
上記発泡剤としては、加熱分解により窒素ガスを発生ず
る慣用のものを使用てき、例えば、ジニトロソペンタメ
チレンテトラミン(DPT)、アゾジカルボアミト(A
DCA)等を挙げることがてきる。発泡剤の配合量は、
pvcゲル化層の発泡倍率か、1.5〜3となる量とし
、通常、PVC100部に対し、0.5〜4部とする。As the above-mentioned blowing agent, commonly used ones that generate nitrogen gas by thermal decomposition are used, such as dinitrosopentamethylenetetramine (DPT), azodicarboamide (A
DCA), etc. The amount of foaming agent is
The amount is such that the expansion ratio of the PVC gelling layer is 1.5 to 3, and is usually 0.5 to 4 parts per 100 parts of PVC.
PVCゲル化層を、発泡タイプとした場合は1、仕上げ
塗膜層に感触上および風合上、ソフト感を容易に付与で
き、高級化志向の要求に充分対応可能となる。When the PVC gel layer is a foamed type, 1, a soft feeling can be easily imparted to the finish coating layer in terms of touch and texture, and it can fully meet the demands of high-end products.
(3)本発明では、ゴム基体1と仕上げ塗膜層3どの間
に下記ブレンドゴムをゴム成分とする発泡処方のゴム配
合物からなる接着剤層(グルーライン)5が介在する。(3) In the present invention, an adhesive layer (glue line) 5 is interposed between the rubber base 1 and the finish coating layer 3, which is made of a foamed rubber compound containing the following blended rubber as a rubber component.
rNBR・40〜80%、EPDM : 20〜60%
、SBR:0〜35%からなるブレンドゴム」
当該ブレンドゴムは、特開昭62−172043号公報
で開示されているものと重複するものであり、通常、乳
化重合法により調製したものを使用する。rNBR・40-80%, EPDM: 20-60%
, SBR: 0 to 35%" The blend rubber is the same as that disclosed in JP-A-62-172043, and is usually prepared by an emulsion polymerization method. .
■NBRが40%未満では、仕上げ塗膜層(P■Cゲル
化層)3との接着性が悪い。また、80%を超えると、
EPDM製のゴム基体1との接着性が悪く、かつ接着剤
層自体の耐オゾン性が悪い■EPDMが20%未満では
、接着剤層自体の耐オゾン性が悪く、E P D M
h)60%を超えると仕上げ塗膜層(pvcゲル化層)
3との接着性が悪くなる。(2) If the NBR is less than 40%, the adhesion to the finish coating layer (PC gel layer) 3 is poor. Also, if it exceeds 80%,
Poor adhesion to the rubber substrate 1 made of EPDM, and poor ozone resistance of the adhesive layer itself ■If EPDM is less than 20%, the ozone resistance of the adhesive layer itself is poor, resulting in EPDM
h) If it exceeds 60%, the finish coating layer (PVC gelling layer)
Adhesion with 3 becomes poor.
■SBRが、35%を超えると仕上げ塗膜層(PvCゲ
ル化層)3との接着性が悪くなるとともに、耐オゾン性
も悪くなる。なお、SBRは、0%でも良いが、2%以
上混合した場合は、ゴム基体1との接着性が改善され望
ましい。(2) If the SBR exceeds 35%, the adhesion to the finish coating layer (PvC gel layer) 3 will deteriorate, and the ozone resistance will also deteriorate. Note that SBR may be 0%, but it is preferable to mix 2% or more because the adhesion to the rubber substrate 1 is improved.
■上記ブレンドゴムには、ゴム配合物を発泡処方とする
ために、発泡剤を配合するとともに、通常、補強性充填
剤(カーボンブラックまたホワイトカーボン)、可塑剤
、滑剤、加硫系薬剤、必要により着色剤等の副資材を配
合する。ここで、使用する発泡剤として、前記PVCに
使用したものでもよいが、p、p′−オキシビス(ヘン
ゼンスルホニルヒドラジト)(OBSH)等も使用可能
である。この場合の発泡剤の配合量は、接着剤層の発泡
倍率か、1.5〜3となるような量とし、通常、ゴム成
分100部に対し、1〜4部とする。■The above blended rubber contains a foaming agent to make the rubber compound into a foaming formulation, and usually also contains reinforcing fillers (carbon black or white carbon), plasticizers, lubricants, vulcanizing agents, etc. Supplementary materials such as colorants are added by Here, the blowing agent used may be the one used for PVC, but p,p'-oxybis(hensensulfonyl hydrazide) (OBSH) and the like can also be used. In this case, the amount of the foaming agent blended is such that the foaming ratio of the adhesive layer is 1.5 to 3, and is usually 1 to 4 parts per 100 parts of the rubber component.
■」二記接着剤層の厚みは、02〜2mmとする。(2) The thickness of the adhesive layer is 0.2 to 2 mm.
0.2mm未満では、接着剤層の作用を奏し難く、かつ
、後述に薬剤吸収作用を奏し難く、2mmを超えると、
材料費アップになるとともに、ゴム基体の特性が失われ
望ましくない。If it is less than 0.2 mm, it will be difficult to perform the adhesive layer's action and, as will be described later, it will be difficult to perform the drug absorption action, and if it exceeds 2 mm,
This is undesirable because it increases the material cost and also causes the properties of the rubber base to be lost.
(4)本発明のゴム積層体の製造方法としては、下記の
ような方法がある。(4) Methods for manufacturing the rubber laminate of the present invention include the following methods.
■ゴム基体(ウェザストリップ本体)1および接着剤層
5を各材料を使用して共押出する。なお、接着剤層5の
みはナイフ重布法等の他の塗布手段て形成してもよい。(2) Co-extrude the rubber base (weather strip main body) 1 and adhesive layer 5 using each material. Incidentally, only the adhesive layer 5 may be formed by other coating means such as a knife layer method.
また、ゴム基体を射出・トランスファ・コンプレッショ
ン等の型成形で調製し、接着剤層を、共相、薄肉シート
等から塗布・抑圧等の手段て形成してもよい。Alternatively, the rubber substrate may be prepared by molding such as injection, transfer, compression, etc., and the adhesive layer may be formed from a co-phase, thin sheet, etc. by means of coating, pressing, etc.
■続いて、ゴム基体1および接着剤層5を加熱加硫後、
pvcペーストをゴム基体1の意匠面りに塗布し、加熱
(同時発泡)ゲル化させて仕上げ塗膜層3を形成する。■Subsequently, after heating and vulcanizing the rubber base 1 and adhesive layer 5,
A PVC paste is applied to the designed surface of the rubber substrate 1 and heated (simultaneously foamed) to gel, thereby forming a finish coating layer 3.
上記pvcペーストの塗布方法は、汎用の塗布方法のう
ち、流し重り(フローコート)、刷毛塗り、ローラ塗り
、浸漬塗り、スプレー塗り等が適用可能であるが、塗布
面か凹凸形状を有していたり、変形しやすい場合は、流
し塗りが望ましい。Among the general-purpose coating methods, flow coating, brush coating, roller coating, dipping coating, spray coating, etc. can be applied to the application method of the above PVC paste, but if the application surface has an uneven shape, If the surface is easily deformed or deformed, flow painting is recommended.
このときの塗布量は、要求される意匠性に応して、mt
lK厚so〜2000μmとなるような塗布量とする。The amount of coating at this time depends on the required design.
The coating amount is set so that the thickness is so~2000 μm.
加熱ゲル化後の仕上げ塗膜層3の膜厚は、ゲル化前の塗
膜厚とほとんど変らず50〜2000μmとなる。The thickness of the finished coating layer 3 after heating and gelling is 50 to 2000 μm, which is almost the same as the coating thickness before gelling.
なお、このとき異色のPvCペーストを塗布可能な塗布
装置を2台以上用意して、押出方向にパラレルに、又は
、所定長ずつ押出直後のゴム基体の意匠面上に塗布すれ
は、多色の仕上げ塗膜層を容易にかつ生産性良好に形成
可能となる。 このPVCペーストの加熱ゲル化工程は
、ゴム基体1および接着剤層5の加硫完了後行なっても
よいが、熱効率・生産性の見地から、ゴム基体1および
接着剤層5の加硫工程で兼ねるようにすることが望まし
い(EPDM系ゴムの加硫条件とPvcベーストの加熱
ゲル化条件は時間−でよい。)。この場合は、ゴム積層
体の押出し・接着剤層のカバーリング・PVCペースト
層の形成およびそれらの加硫又は加熱ゲル化の各工程の
連続化が可能となる。すなわち、ゴム基体1・接着剤層
5・仕上げ塗膜層3を連続的に押出しないしは塗布した
後、加硫(加熱ゲル化)工程に移送させればよい。At this time, it is possible to prepare two or more coating devices capable of coating PvC pastes of different colors and coat them in parallel in the extrusion direction or at predetermined lengths on the designed surface of the rubber substrate immediately after extrusion. The finish coating layer can be formed easily and with good productivity. This heat gelling step of the PVC paste may be performed after the completion of vulcanization of the rubber substrate 1 and adhesive layer 5, but from the viewpoint of thermal efficiency and productivity, the heating gelation step of the rubber substrate 1 and adhesive layer 5 is It is desirable to have both functions (the vulcanization conditions for the EPDM rubber and the heat gelling conditions for the PVC base may be time-dependent). In this case, each step of extruding the rubber laminate, covering the adhesive layer, forming the PVC paste layer, and vulcanizing or heating and gelling them can be performed continuously. That is, after the rubber substrate 1, adhesive layer 5, and finish coating layer 3 are continuously extruded or applied, the rubber substrate 1, the adhesive layer 5, and the finish coating layer 3 may be continuously extruded or coated, and then transferred to a vulcanization (heat gelling) step.
〈発明の作用・効果〉
本発明の仕上げ塗膜層付きゴム積層体は、上記の如(E
PDM製のゴム基体上に、PVcゲル化層で仕上げ塗膜
層が形成されているゴム積層体において、ゴム基体と仕
上げ塗膜層との間に、NBR140〜80重量%、EP
DM : 20〜60重量%、SBR:O〜35重景%
である組成のブレンドゴムをゴム成分とする発泡処方ゴ
ム配合物からなる接着剤層が介在されている構成である
ため下記のような作用効果を奏する。<Actions and Effects of the Invention> The rubber laminate with a finish coating layer of the present invention has the above-mentioned (E
In a rubber laminate in which a finish coating layer is formed of a PVc gelled layer on a PDM rubber substrate, 140 to 80% by weight of NBR and EP are added between the rubber substrate and the finish coating layer.
DM: 20~60% by weight, SBR: O~35% by weight
Since the structure includes an adhesive layer made of a foamed rubber compound whose rubber component is a blended rubber having the following composition, the following effects are achieved.
本発明の仕上げ塗膜付きゴム積層体は、ゴム基体と、p
vcゲル化層で形成された仕上げ塗膜層との間に、良好
な密着性を得るために、従来は、パフ処理、プライマー
処理等の工数の嵩む前処理を必要とした。これに対し、
本発明の仕上げ塗膜付きゴム積層体は、このような工数
の嵩む前処理をしなくても、特定のブレンドゴム又はそ
のゴム配合物で接着剤層を介在させるたけて、ゴム基体
と仕上げ塗膜層との間に良好な密着性を確保てきる。従
って、PVCペーストの加熱ゲル化層からなる仕上げ塗
膜層を有するゴム積層体を生産性良好に製造できる。The rubber laminate with a finish coating of the present invention comprises a rubber base and p
Conventionally, in order to obtain good adhesion between the VC gel layer and the finish coating layer, time-consuming pre-treatments such as puff treatment and primer treatment have been required. In contrast,
The rubber laminate with a finish coat of the present invention can be bonded to a rubber base with a finish coat by interposing an adhesive layer with a specific blended rubber or a rubber compound thereof, without such a time-consuming pretreatment. Good adhesion can be ensured between the film layer and the film layer. Therefore, a rubber laminate having a finish coating layer made of a heat-gelled layer of PVC paste can be manufactured with good productivity.
また、接着剤層か発泡しているため、下記のような作用
効果が加重される。In addition, since the adhesive layer is foamed, the following effects are enhanced.
■ウェザストリップ等に適用して実車装着した場合、車
体曲折部に対する追従性が良好となる。■When applied to a weather strip or the like and mounted on an actual vehicle, the ability to follow curved parts of the vehicle body is good.
■ゴム基体からの加硫系薬剤(pvcゲル化層に変色等
の悪影響を与える。)のpvcゲル化層への移行が、発
泡接着剤層による薬剤吸収作用により、阻止され、Pv
Cゲル化層、即ち仕上げ塗膜層の変色等のおそれが低減
する。■The migration of vulcanizing chemicals (which have an adverse effect on the PVC gelling layer such as discoloration) from the rubber base to the PVC gelling layer is prevented by the drug absorption effect of the foam adhesive layer, and the PVC
The risk of discoloration of the C gelling layer, that is, the finish coating layer, is reduced.
■接着剤層の発泡による微少凹凸かpvcゲル1
化層の表面に影響を与え、仕上げ塗膜層を艶消し仕様と
することが容易となる。■Minute irregularities caused by foaming of the adhesive layer affect the surface of the PVC gel layer, making it easy to make the finish coating layer matte.
〈実施例〉
以下、本発明の効果を確認するために行なった実施例に
ついて説明をする。<Examples> Examples conducted to confirm the effects of the present invention will be described below.
クロスヘツド形の押出機(仕様ニジリンダ径60mmφ
、圧縮比1.5)により第1表に示す配合処方のゴム基
体用、および第2表に示す接着剤層用の各ゴム材料を使
用して、接着剤層(接着剤層厚み: 0.7 mm)で
上面が被覆されたゴム基体(幅35mmx厚さ4mmt
)を押出したく条件;押出速度5m/分)。続いて該押
出物(ゴム基体)上面を、第3表に示す発泡配合処方の
pvcペースト(真空脱泡後の)をシャワーコート法に
より膜厚1mmとなるように塗布して仕上げ塗膜層(p
vcペースト層)を形成し、該押出物を熱風槽に搬入し
、200℃XIO分の条件で、ゴム基体1および接着剤
層の加硫並にペースト層の加熱ゲル化を同時に行なった
。Crosshead type extruder (specification cylinder diameter 60mmφ
, a compression ratio of 1.5), the rubber materials for the rubber substrate having the formulation shown in Table 1 and the rubber materials for the adhesive layer shown in Table 2 were used to form an adhesive layer (adhesive layer thickness: 0. Rubber base (width 35 mm x thickness 4 mm) whose top surface is covered with
) conditions for extruding; extrusion speed 5 m/min). Next, the top surface of the extrudate (rubber base) was coated with a PVC paste (after vacuum defoaming) having the foaming formulation shown in Table 3 to a thickness of 1 mm to form a final coating layer ( p
VC paste layer) was formed, and the extrudate was carried into a hot air tank, and vulcanization of the rubber substrate 1 and adhesive layer and heat gelation of the paste layer were simultaneously performed under conditions of 200° C.XIO minutes.
こうして調製した実施例・比較例について室温2
で2’ 4 h放置後、接着剤層とゴム基体、および接
着剤層と仕上げ塗膜層と接着剤層との間の各接着強さを
、180°剥離試験(引張速度;10cm/分)で測定
した。After leaving the Examples and Comparative Examples prepared in this manner for 2'4 hours at room temperature, the adhesion strength between the adhesive layer and the rubber substrate, and between the adhesive layer, the finish coating layer, and the adhesive layer was determined to be 180 Measured using a peel test (pulling speed: 10 cm/min).
第4表に示す試験結果から、各実施例の接着剤層のゴム
基体および仕上げ塗膜層の双方に対する接着性が良好で
あり、5BRh)?IIM合された3成分系を使用する
と、さらに、接着剤層のゴム基体に対する接着性が改善
されることが分る。From the test results shown in Table 4, the adhesion of the adhesive layer of each example to both the rubber substrate and the finish coating layer was good, and 5BRh)? It has been found that the use of IIM-combined three-component systems further improves the adhesion of the adhesive layer to the rubber substrate.
なお、第4表にJIS K−6301に準じて測定した
接着剤層のゴム物性も記す。SBRか過剰であると耐オ
ゾン性が良好てないことか分る。Table 4 also shows the rubber physical properties of the adhesive layer measured according to JIS K-6301. If SBR is excessive, it can be seen that the ozone resistance is not good.
また、仕上げ塗膜はいずれも風合に富んだ深みのある深
みのある黒色であった。さらに、PVCゲル化層の発泡
倍率は、約2倍てあった。In addition, all the finished coating films had a deep black color with rich texture. Furthermore, the expansion ratio of the PVC gelled layer was about 2 times.
(単位 重量部) ※日本合成ゴム■製造 第 3 表 ※住友化学 (株) 製造(unit parts by weight) *Manufactured by Japan Synthetic Rubber Table 3 *Sumitomo Chemical (KK) manufacturing
第1図は本発明を適用可能な成形品の一例であるウィン
ドウェザストリップの断面図、第2図は同じく他の例で
あるガラスウェザストリップの断面図、
第3図は同じくさらに他の例を示すサイドモールの断面
図である。
1・・・ゴム基体、
3・・・仕上げ塗膜層、
5・・・接着剤層、
D・・・意匠面。
特
許
出 願 人
第
3
図Fig. 1 is a sectional view of a window weather strip which is an example of a molded product to which the present invention can be applied, Fig. 2 is a sectional view of a glass weather strip which is another example, and Fig. 3 is a sectional view of yet another example. It is a sectional view of the side molding shown. DESCRIPTION OF SYMBOLS 1... Rubber base, 3... Finishing coating layer, 5... Adhesive layer, D... Design surface. Patent applicant Figure 3
Claims (1)
(以下、「PVCゲル化層」)で仕上げ塗膜層が形成さ
れているゴム積層体において、前記ゴム基体と仕上げ塗
膜層との間に、 NBR:40〜80重量%、EPDM:20〜60重量
%、SBR:0〜35重量%である組成のブレンドゴム
をゴム成分とする発泡処方のゴム配合物接着剤層が介在
されている、 ことを特徴とする仕上げ塗膜層付きゴム積層体[Claims] A rubber laminate in which a finish coating layer is formed of a gelled layer of PVC paste (hereinafter referred to as "PVC gelled layer") on a rubber base made of EPDM; A foamed rubber compound adhesive with a rubber component between the coating layer and a blended rubber having a composition of NBR: 40 to 80% by weight, EPDM: 20 to 60% by weight, and SBR: 0 to 35% by weight. A rubber laminate with a finish coating layer, characterized in that a layer is interposed therebetween.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3788490A JPH03240530A (en) | 1990-02-19 | 1990-02-19 | Rubber laminate with finished film layer |
CA 2035709 CA2035709C (en) | 1990-02-19 | 1991-02-05 | Rubber shaped articles having a finishing layer and a process for production thereof |
US07/654,032 US5143772A (en) | 1990-02-19 | 1991-02-12 | Rubber shaped articles having a finishing layer and a process for production thereof |
DE69116579T DE69116579T2 (en) | 1990-02-19 | 1991-02-15 | Molded articles made of rubber with a finish and process for their production |
EP19910102202 EP0443462B1 (en) | 1990-02-19 | 1991-02-15 | Rubber shaped articles having a finishing layer and a process for production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3788490A JPH03240530A (en) | 1990-02-19 | 1990-02-19 | Rubber laminate with finished film layer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03240530A true JPH03240530A (en) | 1991-10-25 |
Family
ID=12509971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3788490A Pending JPH03240530A (en) | 1990-02-19 | 1990-02-19 | Rubber laminate with finished film layer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03240530A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010024820A (en) * | 2008-06-20 | 2010-02-04 | Nishikawa Rubber Co Ltd | Gasket |
-
1990
- 1990-02-19 JP JP3788490A patent/JPH03240530A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010024820A (en) * | 2008-06-20 | 2010-02-04 | Nishikawa Rubber Co Ltd | Gasket |
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