JP7191495B2 - 発泡性ポリオレフィン組成物およびその方法 - Google Patents
発泡性ポリオレフィン組成物およびその方法 Download PDFInfo
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Description
本出願は、特許協力条約の下で出願され、すべての目的のために参照によりその全体が本明細書に組み込まれる、2018年6月14日に出願された米国特許仮出願第62/685,133号の利益を主張する。
本開示の分野
本明細書で使用する場合、用語「コポリマー」は、2つのタイプのアルファ-オレフィンモノマー単位を含むポリオレフィンポリマーを指す。
CFA発泡ストランド
CFA発泡シート
PBA発泡シート
Claims (7)
- 以下を含む発泡反応器製熱可塑性ポリオレフィン組成物を含む、物品:
a)プロピレンと式H2C=CHR(式中、RはHであるか、またはC2~C6直鎖状もしくは分枝状アルキルである)の少なくとも1種のアルファ-オレフィンとのコポリマーであって、少なくとも85重量%のプロピレンを含み、室温のキシレン中で15重量%より低い溶解度を有するコポリマー
を含む、8~25重量%の結晶ポリマー;ならびに
b)i)プロピレンと式H2C=CHR(式中、RはHである)の少なくとも1種のアルファ-オレフィンとの第1のエラストマーコポリマーであって、任意選択で0.5~5重量%のジエンを含み、15~32重量%のアルファ-オレフィンを含み、室温のキシレン中で50重量%を越える溶解度を有し、キシレン可溶性画分の固有粘度が3.0~5.0dl/gに及ぶ、第1のエラストマーコポリマー、および
ii)プロピレンと式H2C=CHR(式中、RはHである)の少なくとも1種のアルファ-オレフィンとの第2のエラストマーコポリマーであって、任意選択で0.5~5重量%のジエンを含み、32重量%超から45重量%までのアルファ-オレフィンを含み、室温のキシレン中で80重量%を越える溶解度を有し、キシレン可溶性画分の固有粘度が4.0~6.5dl/gに及ぶ、第2のエラストマーコポリマー
を含む、75~92重量%のエラストマー画分
(ここで、bi)/bii)重量比は、1:5~5:1の範囲であり、前記反応器製熱可塑性ポリオレフィン組成物は、60MPAより低い曲げ弾性率、90より低いショアA硬度、35%より低い100%での永久伸び、および0.1~10g/10分の間のメルトフローレートを有する)。 - 前記発泡反応器製熱可塑性ポリオレフィン組成物が、少なくとも1種の物理発泡剤(PBA)または少なくとも1種の化学起泡剤(CFA)を使用して発泡される、請求項1に記載の物品。
- 前記発泡反応器製熱可塑性ポリオレフィン組成物が、少なくとも1種の核形成剤を含むマスターバッチと組み合わされる、請求項2に記載の物品。
- 前記化学起泡剤が少なくとも1種の核形成剤と同じマスターバッチ中にある、または少なくとも1種の核形成剤として異なるマスターバッチ中にある、請求項3に記載の物品。
- 前記発泡性組成物中のマスターバッチの総量が5重量%以下である、請求項4に記載
の物品。 - 前記化学起泡剤が吸熱性または発熱性である、請求項2に記載の物品。
- 前記化学起泡剤が核形成剤として作用する、請求項2に記載の物品。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862685133P | 2018-06-14 | 2018-06-14 | |
US62/685,133 | 2018-06-14 | ||
PCT/US2019/037293 WO2019241698A1 (en) | 2018-06-14 | 2019-06-14 | Foamable polyolefin compositions and methods thereof |
Publications (3)
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JP2021528521A JP2021528521A (ja) | 2021-10-21 |
JPWO2019241698A5 JPWO2019241698A5 (ja) | 2022-05-27 |
JP7191495B2 true JP7191495B2 (ja) | 2022-12-19 |
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JP2020569126A Pending JP2021527731A (ja) | 2018-06-14 | 2019-06-14 | 発泡性ポリオレフィン組成物およびその方法 |
JP2020568732A Active JP7191495B2 (ja) | 2018-06-14 | 2019-06-14 | 発泡性ポリオレフィン組成物およびその方法 |
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JP2020569126A Pending JP2021527731A (ja) | 2018-06-14 | 2019-06-14 | 発泡性ポリオレフィン組成物およびその方法 |
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Country | Link |
---|---|
US (2) | US11124618B2 (ja) |
EP (2) | EP3807347A1 (ja) |
JP (2) | JP2021527731A (ja) |
CN (2) | CN112469774A (ja) |
CA (2) | CA3102781A1 (ja) |
MX (2) | MX2020013368A (ja) |
WO (2) | WO2019241724A1 (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015123318A (ja) | 2013-12-27 | 2015-07-06 | 日生化学株式会社 | 発泡ポリオレフィンフィルムおよびこれを用いた包装体 |
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JP2675373B2 (ja) * | 1988-12-09 | 1997-11-12 | 三菱化学ビーエーエスエフ株式会社 | 自動車用バンパー芯材 |
IT1243188B (it) | 1990-08-01 | 1994-05-24 | Himont Inc | Composizioni poliolefiniche elastoplastiche |
US5360868A (en) | 1993-08-30 | 1994-11-01 | Himont Incorporated | Polyolefin compositions having a high balance of stiffness and impact strength |
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