JP6210974B2 - 第1の外側の感圧接着性の面および第2の外側の熱活性化性の面を備えた両面接着テープ - Google Patents
第1の外側の感圧接着性の面および第2の外側の熱活性化性の面を備えた両面接着テープ Download PDFInfo
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- JP6210974B2 JP6210974B2 JP2014508836A JP2014508836A JP6210974B2 JP 6210974 B2 JP6210974 B2 JP 6210974B2 JP 2014508836 A JP2014508836 A JP 2014508836A JP 2014508836 A JP2014508836 A JP 2014508836A JP 6210974 B2 JP6210974 B2 JP 6210974B2
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- adhesive tape
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- tape according
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- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
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- C09J2301/00—Additional features of adhesives in the form of films or foils
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
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- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2813—Heat or solvent activated or sealable
- Y10T428/2817—Heat sealable
- Y10T428/2826—Synthetic resin or polymer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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- Adhesives Or Adhesive Processes (AREA)
Description
・層Aは、化学的に熱での開始により架橋された感圧接着剤層または化学的に熱での開始により架橋された感圧接着性の支持層であり、
・層Bは、熱可塑性プラスチックをベースとする層であり、
・層Aと層Bは相互に直接接触しており、かつ
・層Aのうち層Bと直接接触している表面はコロナ前処理またはプラズマ前処理されており、
・コロナ前処理またはプラズマ前処理は、窒素、二酸化炭素、もしくは希ガス、またはこれらガスの少なくとも2種で構成された混合物から成る雰囲気中で行われた。
剥離力は、PSTC−101に依拠して決定された。決定は温度23℃+/−1℃および相対湿度50%+/−5%の試験雰囲気で行われた。本発明による接着テープと試験土台から成る複合品が作製され、この試験土台は、使用された層Bの熱可塑性プラスチックに合わせて選択された。試験土台は常に、それぞれ使用された層Bの熱可塑性プラスチックに対応するように同じプラスチック種から選択された。つまり、例えば層Bの熱可塑性プラスチックがポリウレタンであれば、熱可塑性ポリウレタンの試験土台も選択された。ポリプロピレンタイプの場合には、これに加えてさらに市販の、Meteor Gummiwerke社の様々なショアA硬度のEPDMプロファイルを試験土台として使用した。
せん断試験は、試験規則PSTC−107に依拠して行われた。試験サンプルは、それぞれ2枚の本発明による接着テープ細長片を層Dで相互に、ホットエアガンを用いたホットラミネート加工によって溶着して準備し、これにより両面で感圧接着性の接着テープサンプルができた。この両面で感圧接着性の接着テープサンプルを、2枚のスチールプレート(ASTM A 666に基づくステンレス鋼302;50mm×125mm×1.1mm、光輝焼なましされた表面、表面粗さ:ベースラインからの算術平均偏差が50±25nm)の間に接着し、2kgの重量で4回押圧し、その後、比較的長い時間の後に接着テープサンプルに不具合が生じるように選択された一定のせん断負荷に継続的に曝した。層Aと層Bの間の結合が弱くなるかどうか、または層内で不具合が生じるかどうか、および保持時間がどのくらいかを分単位で測定した。
老朽化挙動を測定するため、剥離力を測定するために作製したような本発明による接着テープと土台から成る複合品を、選択された雰囲気条件で貯蔵した。
貯蔵a):85℃および相対湿度85%の雰囲気中での2週間の貯蔵
貯蔵b):4時間−40℃、4時間加熱/冷却、4時間80℃/相対湿度80%のサイクルでの2週間の交互雰囲気貯蔵
静的ガラス転移温度の決定は、DIN53765に基づく動的示差走査熱量測定によって行われる。ガラス転移温度Tgについての表示は、個々の場合において別の記載がなければ、DIN53765:1994−03に基づくガラス転移温度の値Tgに関している。
平均分子量Mwもしくは平均分子量MNならびに多分散度Dの決定は、ゲル浸透クロマトグラフィ(GPC)によって行われた。溶離液として、0.1体積%のトリフルオロ酢酸を含むTHFが用いられた。測定は25℃で行った。プレカラムとして、PSS−SDV、5μm、103Å(10−7m)、ID8.0mm×50mmを使用した。分離のために、カラムPSS−SDV、5μm、103Å(10−7m)、105Å(10−5m)、および106Å(10−4m)が、それぞれID8.0mm×300mmで用いられた。試料濃度は4g/lであり、貫流量は1分当たり1.0mlであった。PMMA標準に対して測定された。
プレポリマー100重量部:Desmodur W4.54重量部であった。
剥離力:剥離力試験では、例1〜18で常に、層A内での凝集の不具合が測定された。例7では幾つかのサンプルに関し、層Aと層Bの間の付着の不具合を低い割合(約10%)で含む主に凝集の不具合が生じた。例1〜14では、層Aの凝集に不具合が生じる力、つまり割裂力は25〜30N/cmであった。
尚、本発明はさらに下記の実施の態様も含みます:
(1)少なくとも二層の、層Aおよび層Bから成る製品構造を有し、第1の外側の感圧接着性の面および第2の外側の熱活性化性の面を備えた両面接着テープであって、
層Aが、化学的に熱での開始により架橋された感圧接着剤層または化学的に熱での開始により架橋された感圧接着性の支持層であり、
層Bが、熱可塑性プラスチックをベースとする層であり、
層Aと層Bが相互に直接接触しており、かつ
層Aのうち層Bと直接接触している表面がコロナ前処理またはプラズマ前処理された両面接着テープにおいて、
コロナ前処理またはプラズマ前処理が、窒素、二酸化炭素、もしくは希ガス、またはこれらのガスの少なくとも2種で構成された混合物から成る雰囲気中で行われたことを特徴とする、両面接着テープ。
(2)層Aのうち層Bと接触している表面が、化学的に架橋された状態でコロナ前処理またはプラズマ前処理された、前記(1)に記載の両面接着テープ。
(3)層Aを架橋するために、追加的な化学線も電離放射線も使用されない、前記(1)または(2)に記載の両面接着テープ。
(4)層Aが、ホットメルト方法、特に押出成形方法において製造された層である、前記(1)〜(3)のいずれか一つに記載の両面接着テープ。
(5)層Aが、ポリアクリレートをベースとする層である、前記(1)〜(4)のいずれか一つに記載の両面接着テープ。
(6)層Aが、ポリウレタンをベースとする層である、前記(1)〜(5)のいずれか一つに記載の両面接着テープ。
(7)層Aが、発泡されているかまたは発泡体状のコンシステンシーを有する、前記(1)〜(6)のいずれか一つに記載の両面接着テープ。
(8)層Aのうち層Bと直接は接触していない表面が、さらなる層またはさらなる一連の層と直接接触しており、その際、外側の層が感圧接着剤層である、前記(1)〜(7)のいずれか一つに記載の両面接着テープ。
(9)層Bが、ポリオレフィンまたはポリオレフィン混合物をベースとする層である、前記(1)〜(8)のいずれか一つに記載の両面接着テープ。
(10)層Bが、ポリプロピレンコポリマー、またはポリプロピレンコポリマーおよび他のポリオレフィンから成る混合物をベースとする層である、前記(1)〜(9)のいずれか一つに記載の両面接着テープ。
(11)層Bが、DSCにより測定された140℃以上で180℃以下、好ましくは150℃以上で170℃以下の溶融温度を有する、前記(1)〜(10)のいずれか一つに記載の両面接着テープ。
(12)層Bのうち層Aと接触している表面が空気コロナ前処理された、前記(1)〜(11)のいずれか一つに記載の両面接着テープ。
(13)
層Aと層Bが、コロナ前処理またはプラズマ前処理の直後に行われる被覆プロセスまたはラミネートプロセスにおいて相互に直接接触される、前記(1)〜(12)のいずれか一つに記載の両面接着テープの製造方法。
(14)前記(1)〜(13)のいずれか一つに記載の接着テープと、EPDMまたは他のゴム状材料から成る熱可塑性プラスチック製の物体とを含む複合品を製造するための、前記(1)〜(13)のいずれか一つに記載の両面接着テープの使用。
(15)EPDMまたは他のゴム状材料から成るプロファイルを貼り付けるための、前記(1)〜(14)のいずれか一つに記載の両面接着テープの使用。
Claims (21)
- 少なくとも二層の、層Aおよび層Bから成る製品構造を有し、第1の外側の感圧接着性の面および第2の外側の熱活性化性の面を備えた両面接着テープであって、
層Aが、熱開始−化学的架橋反応による架橋を有する感圧接着剤層または熱開始−化学的架橋反応による架橋を有する感圧接着性の支持層であり、
層Bが、熱可塑性プラスチックをベースとする層であり、
層Aと層Bが相互に直接接触しており、かつ
層Aのうち層Bと直接接触している表面がコロナ前処理またはプラズマ前処理された両面接着テープにおいて、
上記表面が、窒素、二酸化炭素、もしくは希ガス、またはこれらのガスの少なくとも2種で構成された混合物から成る雰囲気中でのコロナ前処理またはプラズマ前処理による表面であることを特徴とする、上記両面接着テープ。 - 層Aのうち層Bと接触している表面が、化学的な架橋状態でのコロナ前処理またはプラズマ前処理による表面である、請求項1に記載の両面接着テープ。
- 追加的な化学線も電離放射線も層Aの架橋反応に存在しない、請求項1または2に記載の両面接着テープ。
- 層Aが、ホットメルト処理による層である、請求項1〜3のいずれか一つに記載の両面接着テープ。
- 層Aが、押出成形処理による層である、請求項4に記載の両面接着テープ。
- 層Aが、ポリアクリレートをベースとする層である、請求項1〜5のいずれか一つに記載の両面接着テープ。
- 層Aが、ポリウレタンをベースとする層である、請求項1〜5のいずれか一つに記載の両面接着テープ。
- 層Aが、発泡された形にあるか、または発泡体様形にある、請求項1〜7のいずれか一つに記載の両面接着テープ。
- 層Aのうち層Bと直接は接触していない表面が、さらなる層またはさらなる一連の層と直接接触しており、その際、外側の層が感圧接着剤層である、請求項1〜8のいずれか一つに記載の両面接着テープ。
- 層Bが、ポリオレフィンまたはポリオレフィン混合物をベースとする層である、請求項1〜9のいずれか一つに記載の両面接着テープ。
- 層Bが、ポリプロピレンコポリマー、またはポリプロピレンコポリマーおよび他のポリオレフィンから成る混合物をベースとする層である、請求項1〜10のいずれか一つに記載の両面接着テープ。
- 層Bが、DSCにより測定された140℃以上で180℃以下の溶融温度を有する、請求項1〜11のいずれか一つに記載の両面接着テープ。
- 層Bが、DSCにより測定された150℃以上で170℃以下の溶融温度を有する、請求項12に記載の両面接着テープ。
- 層Bのうち層Aと接触している表面が空気コロナ前処理による表面である、請求項1〜13のいずれか一つに記載の両面接着テープ。
- 層Aが、化学的に熱での開始により架橋された感圧接着剤層または化学的に熱での開始により架橋された感圧接着性の支持層であり、
層Bが、熱可塑性プラスチックをベースとする層であり、
層Aと層Bが、コロナ前処理またはプラズマ前処理の直後に行われる被覆プロセスまたはラミネートプロセスにおいて相互に直接接触され、
この際、コロナ前処理またはプラズマ前処理が、窒素、二酸化炭素、もしくは希ガス、またはこれらのガスの少なくとも2種で構成された混合物から成る雰囲気中で行われたことを特徴とする、請求項1〜14のいずれか一つに記載の両面接着テープの製造方法。 - 層Aのうち層Bと接触している表面が、化学的に架橋された状態でコロナ前処理またはプラズマ前処理された、請求項15に記載の両面接着テープの製造方法。
- 層Aを架橋するために、追加的な化学線も電離放射線も使用されない、請求項15または16に記載の両面接着テープの製造方法。
- 層Aが、ホットメルト処理により製造された層である、請求項15〜17のいずれか一つに記載の両面接着テープの製造方法。
- 層Aが、押出成形処理により製造された層である、請求項18に記載の製造方法。
- 請求項1〜14のいずれか一つに記載の接着テープと、熱可塑性プラスチック、EPDMまたは他のゴム状材料から成る物体とを含む複合品を製造するための請求項1〜14のいずれか一つに記載の両面接着テープの使用。
- EPDMまたは他のゴム状材料から成る形材を接着するための請求項1〜14のいずれか一つに記載の両面接着テープの使用。
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