JP2002114936A - Primer composition, and weatherstrip coated therewith - Google Patents
Primer composition, and weatherstrip coated therewithInfo
- Publication number
- JP2002114936A JP2002114936A JP2000305785A JP2000305785A JP2002114936A JP 2002114936 A JP2002114936 A JP 2002114936A JP 2000305785 A JP2000305785 A JP 2000305785A JP 2000305785 A JP2000305785 A JP 2000305785A JP 2002114936 A JP2002114936 A JP 2002114936A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- urethane
- coating film
- primer composition
- 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 title claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 55
- 238000000576 coating method Methods 0.000 claims abstract description 55
- 239000012948 isocyanate Substances 0.000 claims abstract description 14
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 14
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 14
- 229920002397 thermoplastic olefin Polymers 0.000 claims abstract description 6
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 69
- 239000012756 surface treatment agent Substances 0.000 claims description 48
- 150000001336 alkenes Chemical class 0.000 claims description 34
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 34
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 34
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 229920001971 elastomer Polymers 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 abstract description 6
- 239000003607 modifier Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 27
- 239000000463 material Substances 0.000 description 22
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229920002943 EPDM rubber Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 150000007973 cyanuric acids Chemical class 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、母材に表面処理剤
からなる塗膜を密着させるために塗布されるプライマー
組成物と、このプライマー組成物が塗布されたウェザー
ストリップに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a primer composition applied to adhere a coating film made of a surface treating agent to a base material, and a weather strip to which the primer composition has been applied.
【０００２】[0002]
【従来の技術】例えば、自動車用ドアウェザーストリッ
プには、ウレタン系もしくはシリコン系の表面処理剤が
その表面に塗布されている。2. Description of the Related Art For example, a surface treatment agent of a urethane type or a silicon type is applied to the surface of an automobile door weather strip.
【０００３】上記ドアウェザーストリップのコーナー部
は、予め押出成形された一般部を突き合わせるようにし
て金型にセットし、ＥＰＤＭ（エチレンプロピレンゴ
ム）製のスポンジゴム材を用いて型成形されているが、
近年、ＥＰＤＭよりも廉価なオレフィン系熱可塑性エラ
ストマーを上記コーナー部の材料として用いる傾向があ
る。[0003] The corner portion of the door weather strip is set in a mold so as to abut a previously extruded general portion, and is molded using a sponge rubber material made of EPDM (ethylene propylene rubber). But,
In recent years, there has been a tendency to use an olefin-based thermoplastic elastomer, which is less expensive than EPDM, as the material for the corner portion.
【０００４】また、オレフィン系熱可塑性エラストマー
はＥＰＤＭに比べて、表面処理剤からなる塗膜との密着
力が弱く、オレフィン系熱可塑性エラストマーに表面処
理剤の塗膜を強固に接着させるためのプライマーによる
前処理を行う必要がある。Further, the olefin-based thermoplastic elastomer has a weaker adhesion to a coating film made of a surface treatment agent than EPDM, and is a primer for firmly bonding the coating film of the surface treatment agent to the olefin-based thermoplastic elastomer. It is necessary to perform pre-processing by
【０００５】[0005]
【発明が解決しようとする課題】ところが、オレフィン
系熱可塑性エラストマーに表面処理剤の塗膜を密着させ
るプライマーにあっては、オレフィン系熱可塑性エラス
トマーの材料強度に匹敵する密着力を有するものは開発
されておらず、表面処理剤の塗膜をオレフィン系熱可塑
性エラストマーに対して強固に密着させることができな
いという問題がある。However, among primers for adhering a coating film of a surface treatment agent to an olefin-based thermoplastic elastomer, a primer having an adhesion strength comparable to the material strength of the olefin-based thermoplastic elastomer has been developed. However, there is a problem that the coating film of the surface treating agent cannot be firmly adhered to the olefin-based thermoplastic elastomer.
【０００６】また、型成形されたコーナー部に隣接する
一般部には、既に表面処理剤が塗布されているが、コー
ナー部のみにプライマーを塗布することは難しいため、
コーナー部に塗布されるプライマーは、表面処理剤が塗
布された一般部に対しても十分な密着力を有することが
必要となる。Further, a surface treatment agent has already been applied to the general portion adjacent to the molded corner portion, but it is difficult to apply the primer only to the corner portion.
The primer applied to the corner portion needs to have a sufficient adhesion to the general portion to which the surface treatment agent has been applied.
【０００７】本発明は、かかる課題に着目してなされた
ものであり、オレフィン系熱可塑性エラストマー及び表
面処理剤の双方に対して十分な密着力を有するプライマ
ー組成物に関するものである。The present invention has been made in view of such problems, and relates to a primer composition having a sufficient adhesion to both an olefin-based thermoplastic elastomer and a surface treating agent.
【０００８】[0008]
【課題を解決するための手段】そこで、請求項１に記載
の発明は、オレフィン系熱可塑性エラストマーからなる
部材表面に表面処理剤からなる塗膜を密着させるために
塗布するプライマー組成物において、ＮＲハロゲン変性
体と、反応性オルガノポリシロキサンと、ＨＤＩ系イソ
シアネートと、を含むことを特徴としている。これによ
って、表面処理剤による塗膜は、オレフィン系熱可塑性
エラストマーの表面に上記プライマー組成物を塗布する
ことによって、オレフィン系熱可塑性エラストマーの破
壊強度以上の密着力で密着する。Accordingly, the present invention is directed to a primer composition which is applied to adhere a coating film made of a surface treating agent to the surface of a member made of an olefin-based thermoplastic elastomer. It is characterized by containing a halogen-modified product, a reactive organopolysiloxane, and an HDI-based isocyanate. Thereby, the coating film made of the surface treatment agent adheres with the adhesion strength equal to or higher than the breaking strength of the olefin-based thermoplastic elastomer by applying the primer composition to the surface of the olefin-based thermoplastic elastomer.
【０００９】請求項２に記載の発明は、請求項１に記載
の発明において、ＮＲハロゲン変性体１００重量部に対
し、反応性オルガノポリシロキサン４０重量部〜２４０
重量部及びＨＤＩ系イソシアネート５０重量部〜１００
重量部を混合したことを特徴としている。The invention according to claim 2 is the invention according to claim 1, wherein from 40 parts by weight of the reactive organopolysiloxane to 240 parts by weight based on 100 parts by weight of the NR halogenated compound.
Parts by weight and 50 parts by weight to 100 parts by weight of HDI isocyanate
It is characterized by mixing parts by weight.
【００１０】請求項３に記載の発明は、オレフィン系熱
可塑性エラストマーからなる第１の部材がウレタン系表
面処理剤からなる塗膜が形成されたゴム製の第２の部材
に隣接するよう接合され、上記第１の部材及び上記第２
の部材の表面に跨って連続するウレタン系表面処理剤に
からなる塗膜を密着させるために塗布されるプライマー
組成物において、ＮＲハロゲン変性体と、反応性オルガ
ノポリシロキサンと、ＨＤＩ系イソシアネートと、を含
み、上記第２の部材の表面では、ウレタン系表面処理剤
からなる塗膜に、上記第１の部材の表面から上記第２の
部材の表面まで連続するウレタン系表面処理剤による塗
膜を密着させることを特徴としている。これによって、
ウレタン系表面処理剤による塗膜は、上記プライマー組
成物を塗布することによって、オレフィン系熱可塑性エ
ラストマー並びにウレタン系表面処理剤による塗膜に対
して強固に密着する。According to a third aspect of the present invention, a first member made of an olefin-based thermoplastic elastomer is joined so as to be adjacent to a second member made of rubber on which a coating film made of a urethane-based surface treating agent is formed. , The first member and the second member
In a primer composition that is applied to adhere a coating film made of a urethane-based surface treatment agent that is continuous over the surface of the member, a modified NR halogen, a reactive organopolysiloxane, an HDI-based isocyanate, On the surface of the second member, on the surface of the urethane-based surface treatment agent, a coating film of the urethane-based surface treatment agent continuous from the surface of the first member to the surface of the second member. It is characterized by being closely attached. by this,
The coating film made of the urethane-based surface treatment agent firmly adheres to the olefin-based thermoplastic elastomer and the coating film made of the urethane-based surface treatment agent by applying the primer composition.
【００１１】請求項４に記載の発明は、請求項３に記載
の発明において、ＮＲハロゲン変性体１００重量部に対
し、反応性オルガノポリシロキサン４０重量部〜２４０
重量部及びＨＤＩ系イソシアネート５０重量部〜１００
重量部を混合したことを特徴としている。According to a fourth aspect of the present invention, there is provided the method of the third aspect, wherein 40 parts by weight to 240 parts by weight of the reactive organopolysiloxane is added to 100 parts by weight of the NR halogenated compound.
Parts by weight and 50 parts by weight to 100 parts by weight of HDI isocyanate
It is characterized by mixing parts by weight.
【００１２】請求項５に記載の発明は、表面にウレタン
系表面処理剤による塗膜が形成されたゴム製の押出成形
部と、上記押出成形部に型成形により接合されたオレフ
ィン系熱可塑性エラストマーからなる型成形部と、を有
し、表面にプライマー組成物が塗布されたウェザースト
リップにおいて、上記プライマー組成物は、ＮＲハロゲ
ン変性体１００重量部に対し、反応性オルガノポリシロ
キサン４０重量部〜２４０重量部及びＨＤＩ系イソシア
ネート５０重量部〜１００重量部を混合してなり、上記
型成形部の表面では、上記プライマー組成物によりウレ
タン系表面処理剤からなる塗膜が上記型成形部に密着
し、上記押出成形部の表面では、上記プライマー組成物
により、上記押出成形部に直接密着したウレタン系表面
処理剤からなる塗膜が、上記型成形部の表面から上記押
出成形部の表面まで連続するウレタン系表面処理剤から
なる塗膜に密着していることを特徴としている。According to a fifth aspect of the present invention, there is provided an extruded rubber portion having a surface coated with a urethane surface treating agent, and an olefin-based thermoplastic elastomer joined to the extruded portion by molding. Wherein the primer composition comprises 40 parts by weight to 240 parts by weight of a reactive organopolysiloxane with respect to 100 parts by weight of an NR halogen-modified product. And 50 parts by weight to 100 parts by weight of an HDI-based isocyanate, and a coating of a urethane-based surface treating agent is adhered to the surface of the molded part by the primer composition on the surface of the molded part, On the surface of the extruded portion, a coating film composed of a urethane-based surface treatment agent directly adhered to the extruded portion by the primer composition It is characterized in that in close contact with the coating film made of urethane-based surface treatment agent which is continuous from the surface of the molded portion to the surface of the extruded part.
【００１３】[0013]
【発明の実施の形態】表１に、天然ゴムにハロゲン族の
元素を導入して変性させたＮＲハロゲン変性体と、反応
性オルガノポリシロキサン及びＨＤＩ系イソシアネート
を主成分とする本発明に係るプライマー組成物の配合比
率を、オレフィン系熱可塑性エラストマー（Ａ８２１１
−３５ ＡＥＳジャパン株式会社製）−ウレタン系表面
処理剤間の剥離試験（ＪＩＳ Ｋ６３０１の剥離試験に
準ずる）の結果に基づいて検討した結果を示す。DESCRIPTION OF THE PREFERRED EMBODIMENTS Table 1 shows a NR halogen modified product obtained by modifying a natural rubber by introducing a halogen group element, and a primer according to the present invention containing a reactive organopolysiloxane and an HDI-based isocyanate as main components. The blending ratio of the composition is adjusted to an olefin-based thermoplastic elastomer (A8211).
-35 The result of the examination based on the result of the peeling test between the urethane-based surface treating agents (according to JIS K6301) was shown.
【００１４】オレフィン系熱可塑性エラストマー−ウレ
タン系表面処理剤間の剥離試験では、プライマーが塗布
されたオレフィン系熱可塑性エラストマー（Ａ８２１１
−３５ ＡＥＳジャパン株式会社製）からなる母材にウ
レタン系表面処理剤からなる塗膜が形成された試料幅１
０ｍｍの一対の試験片を用意し、図１に示すように、こ
の一対の試験片の塗膜が形成された面を瞬間接着剤で張
り合わせて、テンシロン引っ張り試験機を用いて引っ張
り速度５０ｍｍ／分で図中の矢示方向に引っ張り、上記
母材とウレタン系表面処理剤の塗膜との境界の密着力を
測定した。この剥離試験の評価は、この剥離試験中に、
ウレタン系表面処理剤の塗膜が上記母材から剥離した場
合を×（不可）とし、ウレタン系表面処理剤の塗膜の一
部が上記母材から剥離した場合及びウレタン系表面処理
剤の塗膜の一部が凝集破壊した場合または上記母材の一
部が材料破壊した場合を△、ウレタン系表面処理剤の塗
膜が凝集破壊した場合または上記母材が材料破壊した場
合を○（可）とした。In the peeling test between the olefin-based thermoplastic elastomer and the urethane-based surface treatment agent, a primer-coated olefin-based thermoplastic elastomer (A8211) was used.
-35 Sample width 1 in which a coating film made of a urethane-based surface treatment agent was formed on a base material made of AES Japan Co., Ltd.
A pair of 0 mm test pieces were prepared, and as shown in FIG. 1, the surfaces of the pair of test pieces on which the coating films were formed were stuck together with an instant adhesive, and a tensile speed of 50 mm / min was used using a Tensilon tensile tester. Then, the adhesive force at the boundary between the base material and the coating film of the urethane-based surface treatment agent was measured by pulling in the direction indicated by the arrow in the drawing. Evaluation of this peel test, during this peel test,
X (impossible) when the coating film of the urethane-based surface treating agent was peeled off from the base material, and when the coating film of the urethane-based surface treating agent was peeled off from the base material, When a part of the film was cohesively fractured or when a part of the above-mentioned base material was materially broken, △ is indicated. ).
【００１５】この結果、本発明に係るプライマー組成物
は、ＮＲハロゲン変性体１００重量部に対し、反応性オ
ルガノポリシロキサン４０重量部〜２４０重量部及びＨ
ＤＩ系イソシアネート５０重量部〜１００重量部を混合
することで、オレフィン系熱可塑性エラストマーに対し
てウレタン系表面処理剤からなる塗膜を強固な密着力で
密着させることができる。As a result, the primer composition according to the present invention contains 40 to 240 parts by weight of the reactive organopolysiloxane and H
By mixing 50 parts by weight to 100 parts by weight of the DI-based isocyanate, a coating film composed of a urethane-based surface treating agent can be adhered to the olefin-based thermoplastic elastomer with a strong adhesion.
【００１６】ここで、上記ウレタン系表面処理剤として
は、本出願人によって先に出願されている特開平８−２
２５６７０号公報に開示された高分子弾性体の表面処理
用塗料組成物を用いており、詳しくは、硬化性ポリウレ
タン１００重量部に対して、平均重合度６０００〜１０
０００のジオルガノポリシロキサンを０．５〜１００重
量部含有してなる。尚、以下に記載するウレタン系表面
処理剤についても同様に特開平８−２２５６７０号公報
に開示された表面処理用塗料組成物を用いるものとす
る。Here, as the urethane-based surface treatment agent, Japanese Patent Application Laid-Open No. Hei 8-2 filed earlier by the present applicant.
No. 25670 discloses a coating composition for surface treatment of a polymer elastic material, specifically, an average degree of polymerization of 6000 to 10 parts by weight with respect to 100 parts by weight of a curable polyurethane.
000 diorganopolysiloxane in an amount of 0.5 to 100 parts by weight. The urethane-based surface treatment agent described below also uses the coating composition for surface treatment disclosed in JP-A-8-225670.
【００１７】表２は、本発明に係るプライマー組成物と
既に市販されているプライマーとの各種性能試験の結果
をまとめたものである。Table 2 summarizes the results of various performance tests on the primer composition according to the present invention and a commercially available primer.
【００１８】オレフィン系熱可塑性エラストマー−ウレ
タン系表面処理剤間の剥離試験（ＪＩＳ Ｋ６３０１の
剥離試験に準ずる）では、プライマーが塗布されたオレ
フィン系熱可塑性エラストマー（Ａ８２１１−３５ Ａ
ＥＳジャパン株式会社製）からなる母材にウレタン系表
面処理剤からなる塗膜が形成された試料幅１０ｍｍの一
対の試験片を用意し、上述した図１に示すように、この
一対の試験片の塗膜が形成された面を瞬間接着剤で張り
合わせて、テンシロン引っ張り試験機を用いて引っ張り
速度５０ｍｍ／分で図中の矢示方向に引っ張り、上記母
材とウレタン系表面処理剤の境界の密着力を測定した。
この剥離試験の評価は、この剥離試験中に、ウレタン系
表面処理剤の塗膜が上記母材から剥離した場合を×（不
可）とし、ウレタン系表面処理剤の塗膜の一部が上記母
材から剥離した場合及びウレタン系表面処理剤の塗膜の
一部が凝集破壊した場合または上記母材の一部が材料破
壊した場合を△、ウレタン系表面処理剤の塗膜が凝集破
壊した場合または上記母材が材料破壊した場合を○
（可）とした。In a peel test between an olefin-based thermoplastic elastomer and a urethane-based surface treating agent (according to the peel test of JIS K6301), a primer-coated olefin-based thermoplastic elastomer (A8211-35A) was used.
A pair of test specimens each having a sample width of 10 mm in which a coating film made of a urethane-based surface treatment agent was formed on a base material made of ES Japan Co., Ltd. was prepared, and as shown in FIG. The surface on which the coating film was formed was stuck with an instant adhesive, and pulled in a direction indicated by an arrow in the drawing at a pulling speed of 50 mm / min using a Tensilon tensile tester, and the boundary between the base material and the urethane-based surface treatment agent was drawn. The adhesion was measured.
The evaluation of this peeling test was made as x (impossible) when the coating film of the urethane-based surface treating agent was peeled off from the base material during the peeling test, and a part of the coating film of the urethane-based surface treating agent was When peeling from the material and when a part of the urethane-based coating film is cohesively broken or when a part of the base material is broken, the case where the urethane-based coating film is cohesive and broken Or, if the above base material is broken,
(OK).
【００１９】また、ウレタン系表面処理剤−ウレタン系
表面処理剤間の耐久試験では、図２に示すように、母材
表面にプライマーを介した２層のウレタン系表面処理剤
の塗膜が形成された試験片に、重さ３ｋｇで先端の曲率
半径が５０ｍｍのウエイトＷを乗せ、１００ｍｍのスト
ローク長を１回／秒のサイクルで図中の矢示方向に摺動
させ、ウレタン系表面処理剤の塗膜とウレタン系表面処
理剤の塗膜との境界で剥がれが発生するまでのストロー
ク回数を目視で測定し、２０回以上（出願人の社内基
準）剥がれが発生しない場合を○（可）とした。尚、上
記ウエイトＷの先端は、カナキン綿布♯３によって覆わ
れている。In the durability test between the urethane-based surface treating agent and the urethane-based surface treating agent, as shown in FIG. 2, a two-layer urethane-based surface treating agent coating film was formed on the base material surface via a primer. A weight W having a weight of 3 kg and a tip with a radius of curvature of 50 mm is placed on the test piece thus slid, and a stroke length of 100 mm is slid at a cycle of once / second in the direction of the arrow in the figure to obtain a urethane-based surface treatment agent. The number of strokes until peeling occurs at the boundary between the coating film of No. and the coating film of the urethane-based surface treatment agent is visually measured, and 20 times or more (applicant's in-house standard): No peeling occurs (OK) And The tip of the weight W is covered with a kanakin cotton cloth # 3.
【００２０】また、ウレタン系表面処理剤−ウレタン系
表面処理剤間の剥離試験（ＪＩＳＫ６３０１の剥離試験
に準ずる）では、母材表面にプライマーを介した２層の
ウレタン系表面処理剤の塗膜が形成された試料幅１０ｍ
ｍの一対の試験片を用意し、図３に示すように、この一
対の試験片の塗膜が形成された面を瞬間接着剤で張り合
わせて、テンシロン引っ張り試験機を用いて引っ張り速
度５０ｍｍ／分で図中の矢示方向に引っ張り、２層とな
ったウレタン系表面処理剤の塗膜間の境界の密着力を測
定した。この剥離試験の評価は、この剥離試験中に、ウ
レタン系表面処理剤の塗膜とウレタン系表面処理剤の塗
膜との境界で剥離が生じた場合を×（不可）とし、それ
以外の場合を○（可）とした。In a peeling test between a urethane-based surface treating agent and a urethane-based surface treating agent (according to the peeling test of JIS K6301), a coating of two layers of a urethane-based surface treating agent via a primer was applied to the base material surface. Sample width 10m formed
m, a pair of test pieces having a coating film formed thereon were stuck together with an instant adhesive as shown in FIG. 3, and a tensile speed of 50 mm / min was obtained using a Tensilon tensile tester. Then, the film was pulled in the direction of the arrow in the figure to measure the adhesion at the boundary between the coating films of the urethane-based surface treatment agent in two layers. The evaluation of this peeling test was evaluated as x (impossible) when peeling occurred at the boundary between the urethane-based coating film and the urethane-based coating film during this peeling test, and in other cases Was evaluated as ○ (acceptable).
【００２１】表２における参考例は、各剥離試験及び耐
久試験で密着力及び耐久力が評価される境界にプライマ
ーを塗布する代わりにトルエンによる脱脂のみを行って
いる。In the reference examples in Table 2, only degreasing with toluene is performed instead of applying a primer to a boundary where adhesion and durability are evaluated in each of the peeling test and the durability test.
【００２２】また、本発明に係るプライマー組成物との
比較に用いるプライマーとしては、塩素化シアヌール酸
を主成分とするＫＧ３３１Ｐ（大宮化成株式会社製）、
オレフィン樹脂を主成分とするケムロック４５９Ｘ及び
ケムロック４５３（ロードファーイースト株式会社
製）、変性オレフィン樹脂を主成分とするＴＮ３１７０
（三菱化学株式会社製）、変性樹脂を主成分とするＭＥ
Ｘ５５４６及びＭＥＸ５５６１（坂井化学工業株式会社
製）を用いた。The primer used for comparison with the primer composition according to the present invention includes KG331P (manufactured by Omiya Kasei Co., Ltd.) containing chlorinated cyanuric acid as a main component.
Chemlock 459X and Chemlock 453 (manufactured by Lord Far East Co., Ltd.) mainly containing an olefin resin, and TN3170 mainly containing a modified olefin resin.
(Manufactured by Mitsubishi Chemical Corporation), ME containing modified resin as a main component
X5546 and MEX5561 (manufactured by Sakai Chemical Industry Co., Ltd.) were used.
【００２３】この表２にまとめた試験結果から、ＮＲハ
ロゲン変性体、反応性オルガノポリシロキサン及びＨＤ
Ｉ系イソシアネートを主成分とする本発明によって開発
されたプライマー組成物が、オレフィン系熱可塑性エラ
ストマー−ウレタン系表面処理剤間の境界における密着
力が強固で、かつウレタン系表面処理剤−ウレタン系表
面処理剤間の境界における密着力及び耐久力に優れてい
ることがわかる。From the test results summarized in Table 2, the NR halogen-modified product, the reactive organopolysiloxane and HD
A primer composition developed according to the present invention containing an I-based isocyanate as a main component has a strong adhesion at the boundary between an olefin-based thermoplastic elastomer and a urethane-based surface treatment agent, and a urethane-based surface treatment agent-urethane-based surface. It can be seen that the adhesive strength and durability at the boundary between the treatment agents are excellent.
【００２４】表３は、本発明に係るプライマー組成物を
用い、ウレタン系表面処理剤と各種オレフィン系熱可塑
性エラストマーとの密着力について検討した結果を示
す。Table 3 shows the results of examination on the adhesion between the urethane-based surface treating agent and various olefin-based thermoplastic elastomers using the primer composition according to the present invention.
【００２５】オレフィン系熱可塑性エラストマー−ウレ
タン系表面処理剤間の剥離試験（ＪＩＳ Ｋ６３０１の
剥離試験に準ずる）では、本発明によって開発されたプ
ライマー組成物が塗布された各種オレフィン系熱可塑性
エラストマーからなる母材にウレタン系表面処理剤によ
る塗膜が形成された試料幅１０ｍｍの一対の試験片を用
意し、上述した図１に示すように、この一対の試験片の
塗膜が形成された面を瞬間接着剤で張り合わせて、テン
シロン引っ張り試験機を用いて引っ張り速度５０ｍｍ／
分で図中の矢示方向に引っ張り、上記母材とウレタン系
表面処理剤の境界の密着力を測定した。In the peeling test between the olefin-based thermoplastic elastomer and the urethane-based surface treating agent (according to the peeling test of JIS K6301), it comprises various olefin-based thermoplastic elastomers coated with the primer composition developed according to the present invention. A pair of test specimens each having a sample width of 10 mm in which a coating film of a urethane-based surface treatment agent was formed on a base material was prepared, and as shown in FIG. Laminated with an instant adhesive, a tensile speed of 50 mm /
Then, the substrate was pulled in the direction of the arrow in the figure, and the adhesion at the boundary between the base material and the urethane-based surface treatment agent was measured.
【００２６】母材に使用するオレフィン系熱可塑性エラ
ストマーとしては、８２１１−３５（ＡＥＳジャパン株
式会社製）、ＴＬＰ９０１及びＴＬＰ９０２（ＪＳＲ株
式会社製）を用いた。As the olefin-based thermoplastic elastomer used for the base material, 8211-35 (manufactured by AES Japan), TLP901 and TLP902 (manufactured by JSR Corporation) were used.
【００２７】この表３に示す結果から、本発明に係るプ
ライマー組成物は、オレフィン系熱可塑性エラストマー
全般に対して相性が非常によいことがわかる。From the results shown in Table 3, it can be seen that the primer composition according to the present invention has very good compatibility with all olefinic thermoplastic elastomers.
【００２８】次に、上述したような本発明に係るプライ
マー組成物の適用例について説明する。Next, application examples of the primer composition according to the present invention as described above will be described.
【００２９】例えば、押出成形されたゴム製の一般部と
型成形されたオレフィン系熱可塑性エラストマー製のコ
ーナー部からなる自動車用ウェザーストリップにおいて
は、通常、上記一般部には押出成形された直後にウレタ
ン系表面処理剤が塗布される。従って、型成形後にコー
ナー部にウレタン系表面処理剤を塗布する際には、上記
一般部に表面処理剤が塗布された状態となっている。ま
た、コーナー部の材質をオレフィン系熱可塑性エラスト
マーとすると、ウレタン系表面処理剤による塗膜をコー
ナー部表面に強固に密着させるためにプライマーを塗布
する必要がある。For example, in an automotive weatherstrip comprising an extruded rubber general part and a molded olefinic thermoplastic elastomer corner, the above general part is usually immediately after being extruded. A urethane-based surface treatment agent is applied. Therefore, when the urethane-based surface treatment agent is applied to the corner portion after the molding, the surface treatment agent is applied to the general portion. Further, when the material of the corner portion is an olefin-based thermoplastic elastomer, it is necessary to apply a primer in order to firmly adhere a coating film made of a urethane-based surface treatment agent to the corner portion surface.
【００３０】このようなウェザーストリップにおいて、
ウレタン系表面処理剤−ウレタン系表面処理剤間の境界
にも優れた密着力を発揮する本発明によって開発された
プライマー組成物を使用すれば、上記コーナー部のみに
プライマーが塗布されるように、上記一般部をマスキン
グする必要がない。また、コーナー部におけるオレフィ
ン系熱可塑性エラストマー−ウレタン系表面処理剤間の
境界では、本発明に係るプライマーは、オレフィン系熱
可塑性エラストマーの破壊強度以上の密着力を得ること
ができ、ゴム材料に対するウレタン系表面処理剤の密着
力と遜色のない密着力を得ることができる。In such a weather strip,
By using the primer composition developed according to the present invention that exhibits excellent adhesion at the boundary between the urethane-based surface treatment agent and the urethane-based surface treatment agent, as the primer is applied only to the corners, There is no need to mask the general part. In addition, at the boundary between the olefin-based thermoplastic elastomer and the urethane-based surface treatment agent at the corner portion, the primer according to the present invention can obtain an adhesion force higher than the breaking strength of the olefin-based thermoplastic elastomer, and the urethane to the rubber material can be obtained. Adhesive strength comparable to that of the system surface treatment agent can be obtained.
【００３１】[0031]
【表１】 [Table 1]
【００３２】[0032]
【表２】 [Table 2]
【００３３】[0033]
【表３】 [Table 3]
【００３４】[0034]
【発明の効果】請求項１及び２の発明によれば、オレフ
ィン系熱可塑性エラストマーの表面に表面処理剤による
塗膜を、このオレフィン系熱可塑性エラストマーの破壊
強度以上の密着力で密着させることができる。According to the first and second aspects of the present invention, it is possible to adhere a coating film made of a surface treating agent on the surface of an olefin-based thermoplastic elastomer with an adhesion force higher than the breaking strength of the olefin-based thermoplastic elastomer. it can.
【００３５】また請求項３及び４の発明によれば、ウレ
タン系表面処理剤による塗膜の上に、ウレタン系表面処
理剤による塗膜を強固に密着させることができる。Further, according to the third and fourth aspects of the present invention, the coating film made of the urethane-based surface treating agent can be firmly adhered to the coating film made of the urethane-based surface treating agent.
【００３６】特に、表面処理剤による塗膜が密着しにく
いオレフィン系熱可塑性エラストマーがウェザーストリ
ップの一部に使用された請求項５の発明によれば、ウレ
タン系表面処理剤による塗膜をオレフィン系熱可塑性エ
ラストマー製の型成形部の表面に強固に密着させること
ができる。また、ウレタン系表面処理剤による塗膜の上
に、ウレタン系表面処理剤による塗膜を強固に密着させ
ることができるので、プライマーを型成形部に塗布する
際に、押出成形部をマスキングする必要がなく、作業の
簡略化により製造コストの低減を図ることができる。[0036] In particular, according to the invention of claim 5, wherein the olefin-based thermoplastic elastomer to which the coating film with the surface treatment agent is hardly adhered is used for a part of the weather strip, the coating film with the urethane-based surface treatment agent is olefin-based. It can be firmly adhered to the surface of the molded part made of thermoplastic elastomer. In addition, since the urethane-based coating can be firmly adhered to the urethane-based coating, it is necessary to mask the extruded part when applying the primer to the molded part. Therefore, the manufacturing cost can be reduced by simplifying the operation.
【図１】オレフィン系熱可塑性エラストマー−ウレタン
系表面処理剤間の剥離試験の方法を示す説明図。FIG. 1 is an explanatory diagram showing a method of a peel test between an olefin-based thermoplastic elastomer and a urethane-based surface treatment agent.
【図２】ウレタン系表面処理剤−ウレタン系表面処理剤
間の耐久試験の方法を示す説明図。FIG. 2 is an explanatory view showing a method of a durability test between a urethane-based surface treatment agent and a urethane-based surface treatment agent.
【図３】ウレタン系表面処理剤−ウレタン系表面処理剤
間の剥離試験の方法を示す説明図。FIG. 3 is an explanatory view showing a method of a peeling test between a urethane-based surface treatment agent and a urethane-based surface treatment agent.
Claims (5)
なる部材表面に表面処理剤からなる塗膜を密着させるた
めに塗布するプライマー組成物において、ＮＲハロゲン
変性体と、反応性オルガノポリシロキサンと、ＨＤＩ系
イソシアネートと、を含むことを特徴とするプライマー
組成物。1. A primer composition applied to adhere a coating film made of a surface treating agent to a surface of a member made of an olefinic thermoplastic elastomer, comprising a modified NR halogen, a reactive organopolysiloxane, and an HDI-based isocyanate. And a primer composition comprising:
し、反応性オルガノポリシロキサン４０重量部〜２４０
重量部及びＨＤＩ系イソシアネート５０重量部〜１００
重量部を混合したことを特徴とする請求項１に記載のプ
ライマー組成物。2. A reactive organopolysiloxane of 40 parts by weight to 240 parts by weight based on 100 parts by weight of the NR halogenated compound.
Parts by weight and 50 parts by weight to 100 parts by weight of HDI isocyanate
The primer composition according to claim 1, wherein parts by weight are mixed.
なる第１の部材がウレタン系表面処理剤からなる塗膜が
形成されたゴム製の第２の部材に隣接するよう接合さ
れ、上記第１の部材及び上記第２の部材の表面に跨って
連続するウレタン系表面処理剤にからなる塗膜を密着さ
せるために塗布されるプライマー組成物において、 ＮＲハロゲン変性体と、反応性オルガノポリシロキサン
と、ＨＤＩ系イソシアネートと、を含み、 上記第２の部材の表面では、ウレタン系表面処理剤から
なる塗膜に、上記第１の部材の表面から上記第２の部材
の表面まで連続するウレタン系表面処理剤による塗膜を
密着させることを特徴とするプライマー組成物。3. A first member made of an olefin-based thermoplastic elastomer is joined so as to be adjacent to a second member made of rubber on which a coating film made of a urethane-based surface treating agent is formed, and A primer composition applied to adhere a coating film made of a urethane-based surface treatment agent continuously over the surface of the second member, wherein the NR halogen-modified product, the reactive organopolysiloxane, and the HDI-based An isocyanate, and on the surface of the second member, a urethane-based surface treatment agent that is continuous from the surface of the first member to the surface of the second member on the coating film of the urethane-based surface treatment agent A primer composition, characterized in that a coating film is adhered.
し、反応性オルガノポリシロキサン４０重量部〜２４０
重量部及びＨＤＩ系イソシアネート５０重量部〜１００
重量部を混合したことを特徴とする請求項３に記載のプ
ライマー組成物。4. A reactive organopolysiloxane of 40 to 240 parts by weight based on 100 parts by weight of the NR halogen-modified product.
Parts by weight and 50 parts by weight to 100 parts by weight of HDI isocyanate
The primer composition according to claim 3, wherein parts by weight are mixed.
が形成されたゴム製の押出成形部と、上記押出成形部に
型成形により接合されたオレフィン系熱可塑性エラスト
マーからなる型成形部と、を有し、表面にプライマー組
成物が塗布されたウェザーストリップにおいて、 上記プライマー組成物は、ＮＲハロゲン変性体１００重
量部に対し、反応性オルガノポリシロキサン４０重量部
〜２４０重量部及びＨＤＩ系イソシアネート５０重量部
〜１００重量部を混合してなり、 上記型成形部の表面では、上記プライマー組成物により
ウレタン系表面処理剤からなる塗膜が上記型成形部に密
着し、 上記押出成形部の表面では、上記プライマー組成物によ
り、上記押出成形部に直接密着したウレタン系表面処理
剤からなる塗膜が、上記型成形部の表面から上記押出成
形部の表面まで連続するウレタン系表面処理剤からなる
塗膜に密着していることを特徴とする表面にプライマー
組成物が塗布されたウェザーストリップ。5. An extruded portion made of rubber having a surface coated with a urethane-based surface treating agent, and a molded portion made of an olefin-based thermoplastic elastomer joined to the extruded portion by molding. In the weather strip having a primer composition applied on the surface thereof, the primer composition is composed of 40 parts by weight to 240 parts by weight of a reactive organopolysiloxane and 50 parts by weight of an HDI-based isocyanate with respect to 100 parts by weight of an NR halogen-modified product. Parts by weight to 100 parts by weight. On the surface of the molded part, a coating film made of a urethane-based surface treatment agent adheres to the molded part by the primer composition. By the above-mentioned primer composition, a coating film composed of a urethane-based surface treatment agent directly adhered to the above-mentioned extrusion-molded portion, A weatherstrip coated with a primer composition on a surface thereof, wherein the weatherstrip is in close contact with a coating film made of a urethane-based surface treatment agent which is continuous from the surface of the extruded part to the surface of the extruded part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000305785A JP2002114936A (en) | 2000-10-05 | 2000-10-05 | Primer composition, and weatherstrip coated therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000305785A JP2002114936A (en) | 2000-10-05 | 2000-10-05 | Primer composition, and weatherstrip coated therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002114936A true JP2002114936A (en) | 2002-04-16 |
Family
ID=18786582
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000305785A Pending JP2002114936A (en) | 2000-10-05 | 2000-10-05 | Primer composition, and weatherstrip coated therewith |
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| Country | Link |
|---|---|
| JP (1) | JP2002114936A (en) |
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| JP2011231299A (en) * | 2010-04-30 | 2011-11-17 | Dainichiseika Color & Chem Mfg Co Ltd | Weather strip material and weather strip |
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| US8975420B2 (en) | 2009-11-25 | 2015-03-10 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Five-membered cyclocarbonate polysiloxane compound and process for preparation of same |
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| US10000609B2 (en) | 2010-08-26 | 2018-06-19 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin, resin material containing same, method for producing same, artificial leather comprising same, and thermoplastic polyolefin skin material comprising same |
| US10066048B2 (en) | 2010-06-24 | 2018-09-04 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Self-crosslinkable polyhydroxy polyurethane resin, resinaceous material that contains the resin, process for production of the resin, and imitation leather, surfacing material and weatherstrip material, using the resin |
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2000
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8951933B2 (en) | 2009-11-25 | 2015-02-10 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Polysiloxane-modified polyhydroxy polyurethane resin, method for producing same, heat-sensitive recording material using the resin, imitation leather, thermoplastic polyolefin resin skin material, material for weather strip, and weather strip |
| US8975420B2 (en) | 2009-11-25 | 2015-03-10 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Five-membered cyclocarbonate polysiloxane compound and process for preparation of same |
| US9394462B2 (en) | 2009-11-25 | 2016-07-19 | Dainichiseika Color & Chemicals Mfg. Co., Ltd | Polysiloxane-modified polyhydroxy polyurethane resin, method for producing same, heat-sensitive recording material using the resin, imitation leather, thermoplastic polyolefin resin skin material, material for weather strip, and weather strip |
| JP2011231299A (en) * | 2010-04-30 | 2011-11-17 | Dainichiseika Color & Chem Mfg Co Ltd | Weather strip material and weather strip |
| US10066048B2 (en) | 2010-06-24 | 2018-09-04 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Self-crosslinkable polyhydroxy polyurethane resin, resinaceous material that contains the resin, process for production of the resin, and imitation leather, surfacing material and weatherstrip material, using the resin |
| US10000609B2 (en) | 2010-08-26 | 2018-06-19 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin, resin material containing same, method for producing same, artificial leather comprising same, and thermoplastic polyolefin skin material comprising same |
| US9359719B2 (en) | 2011-04-04 | 2016-06-07 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Self-crosslinkable polysiloxane-modified polyhydroxy polyurethane resin, process for producing said resin, resin material comprising said resin, and artificial leather produced utilizing said resin |
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