JP7032400B2 - 過酸化物マスターバッチ - Google Patents
過酸化物マスターバッチ Download PDFInfo
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Description
- 15~55wt%の1種または複数の有機過酸化物、
- 15~45wt%の、第1のモノマーがエチレンまたはプロピレンであり、第2のモノマーが少なくとも4個の炭素原子および任意選択でヘテロ原子を含むビニルモノマーである少なくとも2種の異なるモノマーの1種または複数のコポリマー、
- 6~70wt%の、それぞれ異なるBET表面積を有する少なくとも2種の充填剤タイプ、充填剤タイプ1および充填剤タイプ2:
(i)3~30wt%の濃度でマスターバッチ中に存在し、100m2/g超のBET表面積を有する充填剤タイプ1、
(ii)3~40wt%の濃度でマスターバッチ中に存在し、100m2/g以下のBET表面積を有する充填剤タイプ2
を含み、押出物の形態を有するマスターバッチを提供することによって達成される。
本発明による2つのマスターバッチを調製した。第1のマスターバッチは、ジクミルペルオキシド(Perkadox(登録商標)BC、ex-AkzoNobel)を含有し;第2のマスターバッチは、ジ(tert-ブチルペルオキシイソプロピル)ベンゼン(Perkadox(登録商標)14S、ex-AkzoNobel)を含有していた。
異なるコポリマーを使用することを除いて、実施例1を繰り返した:
-Engage(商標)HM7387 ex-Dow(エチレンと1-ブテンのPOEコポリマー)
-Elvax(登録商標)360A ex-DuPont(エチレン酢酸ビニルコポリマー)。
本願発明には以下の態様が含まれる。
項1.
過酸化物マスターバッチであって、
- 15~55wt%の1種または複数の有機過酸化物、
- 15~45wt%の、第1のモノマーがエチレンまたはプロピレンであり、第2のモノマーが少なくとも4個の炭素原子および任意選択でヘテロ原子を含むビニルモノマーである少なくとも2種の異なるモノマーの1種または複数のコポリマー、
- 6~70wt%の、それぞれ異なるBET表面積を有する少なくとも2種の充填剤タイプ、充填剤タイプ1および充填剤タイプ2:
(i)3~30wt%の濃度でマスターバッチ中に存在し、100m2/g超のBET表面積を有する充填剤タイプ1、
(ii)3~40wt%の濃度でマスターバッチ中に存在し、100m2/g以下のBET表面積を有する充填剤タイプ2
を含み、押出物の形態を有する、過酸化物マスターバッチ。
項2.
30~52wt%の1種または複数の過酸化物を含む、項1に記載の過酸化物マスターバッチ。
項3.
前記有機過酸化物が、ジクミルペルオキシド、ジ(tert-ブチルペルオキシイソプロピル)ベンゼン、1,1-ジ(tert-ブチルペルオキシ)-3,3,5-トリ-メチルシクロヘキサン、ブチル-4,4-ジ(tert-ブチルペルオキシ)バレレート、2,5-ジメチル-2,5-ジ(tert-ブチルペルオキシ)ヘキサン、およびペルオキシ-3,5,5-トリメチルヘキサン酸tert-ブチルからなる群から選択される、項1または2に記載の過酸化物マスターバッチ。
項4.
前記コポリマーが、エチレン-酢酸ビニルコポリマー、(i)エチレンまたはプロピレンと(ii)1-ブテン、1-ヘキセン、および/または1-オクテンとのコポリマー、エチレンとアクリレートとのコポリマー、スチレンエチレンブチレン水素化コポリマー、スチレンエチレンプロピレン水素化コポリマーから選択される、前記項のいずれか一項に記載の過酸化物マスターバッチ。
項5.
前記コポリマーが、(i)エチレンまたはプロピレンと(ii)1-ブテンおよび/または1-オクテンとのコポリマーである、項4に記載の過酸化物マスターバッチ。
項6.
前記コポリマーが、エチレン-酢酸ビニルコポリマーである、項4に記載の過酸化物マスターバッチ。
項7.
3~15wt%の充填剤タイプ1および10~30wt%の充填剤タイプ2を含む、前記項のいずれか一項に記載の過酸化物マスターバッチ。
項8.
充填剤タイプ1が、150m2/g超のBET表面積を有する、前記項のいずれか一項に記載の過酸化物マスターバッチ。
項9.
充填剤タイプ1が、カーボンブラック、シリカ、およびその組合せから選択される、前記項のいずれか一項に記載の過酸化物マスターバッチ。
項10.
充填剤タイプ2が、10m2/g未満のBET表面積を有する、前記項のいずれか一項に記載の過酸化物マスターバッチ。
項11.
充填剤タイプ2が、炭酸カルシウム、硫酸バリウム、粘土、およびその組合せから選択される、前記項のいずれか一項に記載の過酸化物マスターバッチ。
項12.
前記項のいずれか一項に記載の過酸化物マスターバッチを調製するための方法であって、前記1種または複数の有機過酸化物、前記1種または複数のコポリマーの顆粒またはペレット、および前記少なくとも2種の充填剤タイプを、押出機に加え、50~95℃の範囲の温度で押出す、方法。
項13.
前記押出が、70~85℃の範囲の温度で実施される、項12に記載の方法。
項14.
エラストマーを架橋するための方法であって、項1~11のいずれか一項に記載の前記過酸化物マスターバッチを、架橋すべきエラストマー中に分散させるステップを含み、前記エラストマーが好ましくはEPMまたはEPDMである、方法。
項15.
ポリエチレンの架橋、改質、もしくは官能化、ポリプロピレンの分解もしくは官能化、または熱可塑性加硫物の生成のための、項1~11のいずれか一項に記載の前記過酸化物マスターバッチの使用。
Claims (14)
- 過酸化物マスターバッチであって、
- 15~55wt%の1種または複数の有機過酸化物、
- 15~45wt%の、エチレン-酢酸ビニルコポリマー、(i)エチレンまたはプロピレンと(ii)1-ブテン、1-ヘキセン、および/または1-オクテンとのコポリマー、エチレンとアクリレートとのコポリマー、スチレンエチレンブチレン水素化コポリマー、およびスチレンエチレンプロピレン水素化コポリマーから選択される1種または複数のコポリマー、
- 6~70wt%の、それぞれ異なるBET表面積を有する少なくとも2種の充填剤タイプ、充填剤タイプ1および充填剤タイプ2:
(i)3~30wt%の濃度でマスターバッチ中に存在し、100m2/g超のBET表面積を有する充填剤タイプ1、
(ii)3~40wt%の濃度でマスターバッチ中に存在し、100m2/g以下のBET表面積を有する充填剤タイプ2
を含み、押出物の形態を有する、過酸化物マスターバッチ。 - 30~52wt%の1種または複数の過酸化物を含む、請求項1に記載の過酸化物マスターバッチ。
- 前記有機過酸化物が、ジクミルペルオキシド、ジ(tert-ブチルペルオキシイソプロピル)ベンゼン、1,1-ジ(tert-ブチルペルオキシ)-3,3,5-トリ-メチルシクロヘキサン、ブチル-4,4-ジ(tert-ブチルペルオキシ)バレレート、2,5-ジメチル-2,5-ジ(tert-ブチルペルオキシ)ヘキサン、およびペルオキシ-3,5,5-トリメチルヘキサン酸tert-ブチルからなる群から選択される、請求項1または2に記載の過酸化物マスターバッチ。
- 前記コポリマーが、(i)エチレンまたはプロピレンと(ii)1-ブテンおよび/または1-オクテンとのコポリマーである、請求項1に記載の過酸化物マスターバッチ。
- 前記コポリマーが、エチレン-酢酸ビニルコポリマーである、請求項1に記載の過酸化物マスターバッチ。
- 3~15wt%の充填剤タイプ1および10~30wt%の充填剤タイプ2を含む、請求項1~5のいずれか一項に記載の過酸化物マスターバッチ。
- 充填剤タイプ1が、150m2/g超のBET表面積を有する、請求項1~6のいずれか一項に記載の過酸化物マスターバッチ。
- 充填剤タイプ1が、カーボンブラック、シリカ、およびその組合せから選択される、請求項1~7のいずれか一項に記載の過酸化物マスターバッチ。
- 充填剤タイプ2が、10m2/g未満のBET表面積を有する、請求項1~8のいずれか一項に記載の過酸化物マスターバッチ。
- 充填剤タイプ2が、炭酸カルシウム、硫酸バリウム、粘土、およびその組合せから選択される、請求項1~9のいずれか一項に記載の過酸化物マスターバッチ。
- 請求項1~10のいずれか一項に記載の過酸化物マスターバッチを調製するための方法であって、前記1種または複数の有機過酸化物、前記1種または複数のコポリマーの顆粒またはペレット、および前記少なくとも2種の充填剤タイプを、押出機に加え、50~95℃の範囲の温度で押出す、方法。
- 前記押出が、70~85℃の範囲の温度で実施される、請求項11に記載の方法。
- エラストマーを架橋するための方法であって、請求項1~10のいずれか一項に記載の前記過酸化物マスターバッチを、架橋すべきエラストマー中に分散させるステップを含み、前記エラストマーが好ましくはEPMまたはEPDMである、方法。
- ポリエチレンの架橋、改質、もしくは官能化、ポリプロピレンの分解もしくは官能化、または熱可塑性加硫物の生成のための、請求項1~10のいずれか一項に記載の前記過酸化物マスターバッチの使用。
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