KR20190002365A - 재생 가교된 폴리올레핀 발포체 재료로부터 공압출 가교된 다층 폴리올레핀 발포체 구조물을 제조하는 방법 - Google Patents
재생 가교된 폴리올레핀 발포체 재료로부터 공압출 가교된 다층 폴리올레핀 발포체 구조물을 제조하는 방법 Download PDFInfo
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Abstract
Description
도 1a는 세절 재생 가교된 폴리올레핀 발포체를 함유하는 발포체의 제1 사진이다.
도 1b는 세절 재생 가교된 폴리올레핀 발포체를 함유하는 발포체의 제2 사진이다.
도 2는 실시예 1을 제조하는데 사용된 기계적 제분된 재생 가교된 폴리올레핀 발포체의 사진이다.
도 3은, 이후에 실시예 2 및 3의 다층 발포체 구조물을 제조하는데 사용된 마스터배치를 생성하는데 사용되는 과립화된 3 내지 7 mm 폭의 응집체의 사진이다.
도 4는 1차 표면으로부터 45° 및 30X 배율에서의 실시예 1의 비-발포 시트의 사진이다.
도 5는 1차 표면으로부터 45° 및 30X 배율에서의 실시예 1의 방사열 발포 표면의 사진이다.
도 6은 1차 표면으로부터 45° 및 30X 배율에서의 실시예 1의 염 가열된 발포체 표면의 사진이다.
도 7은 1차 표면으로부터 45° 및 30X 배율에서의 실시예 2의 표면 B로부터의 비-발포 시트의 사진이다.
도 8은 1차 표면으로부터 45° 및 30X 배율에서의 실시예 2의 표면 A로부터의 비-발포 시트의 사진이다.
도 9는 1차 표면으로부터 45° 및 30X 배율에서의 실시예 3의 표면 B로부터의 비-발포 시트의 사진이다.
도 10은 1차 표면으로부터 45° 및 30X 배율에서의 실시예 3의 표면 A로부터의 비-발포 시트의 사진이다.
도 11은 본 개시내용의 실시예 및 미국 특허 제9,669,600호에서의 재생 발포체 제조 단계들 간의 차이를 예시하는 흐름도이다.
Claims (28)
- 폴리올레핀 발포체를 세절하고, 세절된 발포체를 응집시키고, 응집된 발포체를 과립화시켜 재생 가교된 폴리올레핀 발포체 재료를 형성하는 단계; 및
폴리프로필렌, 폴리에틸렌, 또는 폴리프로필렌 및 폴리에틸렌의 조합; 및
제1 화학적 발포제
를 포함하는 제1 층; 및
2.5 내지 25 wt%의 재생 가교된 폴리올레핀 발포체 재료;
75 내지 97.5 wt%의 폴리프로필렌, 폴리에틸렌, 또는 폴리프로필렌 및 폴리에틸렌의 조합; 및
제2 화학적 발포제
를 포함하는, 상기 제1 층의 일측 상의 제2 층
을 공압출하는 단계
를 포함하는, 다층 구조물을 형성하는 방법. - 제1항에 있어서, 재생 가교된 폴리올레핀 발포체 재료의 과립이 3 내지 7 mm의 폭을 갖는 것인 방법.
- 제1항에 있어서, 재생 가교된 폴리올레핀 발포체 재료의 과립을 기계적 제분하는 것을 추가로 포함하는 방법.
- 제3항에 있어서, 기계적 제분된 재생 가교된 폴리올레핀 발포체 재료의 입자가 0.2 내지 2 mm의 폭을 갖는 것인 방법.
- 제1항에 있어서, 제1 층 반대편의 제2 층의 일측 상에 제3 층을 공압출하는 것을 추가로 포함하며,
상기 제3 층은
폴리프로필렌 또는 폴리에틸렌; 및
제3 화학적 발포제
를 포함하는 것인 방법. - 제5항에 있어서, 제1 층 및 제3 층에 재생 폴리올레핀 재료가 실질적으로 없는 것인 방법.
- 제1항에 있어서, 제1 층이 230℃에서 0.1 내지 25 그램/10분의 용융 유동 지수를 갖는 폴리프로필렌을 포함하는 것인 방법.
- 제1항에 있어서, 제1 층이 190℃에서 0.1 내지 25 그램/10분의 용융 유동 지수를 갖는 폴리에틸렌을 포함하는 것인 방법.
- 제5항에 있어서, 제1, 제2 및 제3 층이 가교제를 포함하는 것인 방법.
- 제5항에 있어서, 제1, 제2 및 제3 화학적 발포제가 아조디카본아미드인 방법.
- 제5항에 있어서, 제1 층 및 제3 층이 폴리프로필렌 및 폴리에틸렌을 포함하는 것인 방법.
- 폴리올레핀 발포체를 세절하고, 세절된 발포체를 응집시키고, 응집된 발포체를 과립화시켜 재생 가교된 폴리올레핀 발포체 재료를 형성하는 단계;
폴리프로필렌 또는 폴리에틸렌; 및
제1 화학적 발포제
를 포함하는 제1 층; 및
2.5 내지 25 wt%의 재생 가교된 폴리올레핀 발포체 재료;
75 내지 97.5 wt%의 폴리프로필렌, 폴리에틸렌, 또는 폴리프로필렌 및 폴리에틸렌의 조합; 및
제2 화학적 발포제
를 포함하는, 상기 제1 층의 일측 상의 제2 층
을 공압출하는 단계;
공압출된 층에 이온화 방사선을 조사하는 단계; 및
조사 공압출된 층을 발포시키는 단계
를 포함하는, 다층 발포체 구조물을 형성하는 방법. - 제12항에 있어서, 제1 층 반대편의 제2 층의 일측 상에 제3 층을 공압출하는 것을 추가로 포함하며,
상기 제3 층은
폴리프로필렌 또는 폴리에틸렌; 및
제3 화학적 발포제
를 포함하는 것인 방법. - 제13항에 있어서, 제1 층 및 제3 층에 재생 폴리올레핀 재료가 실질적으로 없는 것인 방법.
- 제12항에 있어서, 재생 가교된 폴리올레핀 발포체 재료의 과립이 3 내지 7 mm의 폭을 갖는 것인 방법.
- 제12항에 있어서, 재생 가교된 폴리올레핀 발포체 재료의 과립을 기계적 제분하는 것을 추가로 포함하는 방법.
- 제6항에 있어서, 기계적 제분된 재생 가교된 폴리올레핀 발포체 재료의 입자가 0.2 내지 2 mm의 폭을 갖는 것인 방법.
- 제12항에 있어서, 이온화 방사선이 알파, 베타 (전자), X선, 감마, 및 중성자로 이루어진 군으로부터 선택된 것인 방법.
- 제12항에 있어서, 공압출된 구조물에 최대 별도로 4회 조사하는 것인 방법.
- 제19항에 있어서, 이온화 방사선이 200 내지 1500 kV의 가속 전압을 갖는 전자 빔인 방법.
- 제20항에 있어서, 흡수된 전자 빔 조사선량이 10 내지 500 kGy인 방법.
- 제12항에 있어서, 이온화 방사선이 압출된 구조물을 20 내지 75%의 가교도로 가교시키는 것인 방법.
- 제12항에 있어서, 발포가, 조사된 구조물을 용융 염으로 가열하는 것을 포함하는 것인 방법.
- 제12항에 있어서, 다층 발포체 구조물이 20 내지 250 kg/m3의 밀도를 갖는 것인 방법.
- 제12항에 있어서, 다층 발포체 구조물이 0.05 내지 1.0 mm의 평균 폐쇄 셀(closed cell) 크기를 갖는 것인 방법.
- 제12항에 있어서, 다층 발포체 구조물이 0.2 내지 50 mm의 두께를 갖는 것인 방법.
- 제12항에 있어서, 제1 층에 대한 평균 표면 조도가 80 ㎛ 미만인 방법.
- 제13항에 있어서, 제1 층 및 제3 층이 폴리프로필렌 및 폴리에틸렌을 포함하는 것인 방법.
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| US15/637,723 | 2017-06-29 | ||
| US15/637,723 US10501598B2 (en) | 2017-06-29 | 2017-06-29 | Method of making coextruded, crosslinked multilayer polyolefin foam structures from recycled crosslinked polyolefin foam material |
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| KR20190002365A true KR20190002365A (ko) | 2019-01-08 |
| KR102615688B1 KR102615688B1 (ko) | 2023-12-18 |
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| EP (1) | EP3421213B1 (ko) |
| JP (1) | JP7280669B2 (ko) |
| KR (1) | KR102615688B1 (ko) |
| CN (2) | CN121246124A (ko) |
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| JP2019038992A (ja) | 2019-03-14 |
| CN121246124A (zh) | 2026-01-02 |
| MX394955B (es) | 2025-03-24 |
| CN109203340A (zh) | 2019-01-15 |
| ES2911007T3 (es) | 2022-05-17 |
| KR102615688B1 (ko) | 2023-12-18 |
| US20190002662A1 (en) | 2019-01-03 |
| MX2018008082A (es) | 2019-03-14 |
| US10501598B2 (en) | 2019-12-10 |
| JP7280669B2 (ja) | 2023-05-24 |
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| EP3421213A1 (en) | 2019-01-02 |
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