KR101878994B1 - 조사에 의해 발포되는 생분해성 펠렛 - Google Patents
조사에 의해 발포되는 생분해성 펠렛 Download PDFInfo
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Abstract
Description
- 보이드 면적이 펠렛의 외부 스킨의 면적에 대해 15 % 미만인 외부 스킨; 및
도 2 는 실시예 1 에 따른 펠렛의 외부 스킨을 보여준다.
도 3 은 실시예 2 에 따른 발포 실린더를 보여준다 (55 ㎏/㎥ 에서 발포됨).
도 4 는 실시예 2 에 따른 발포 블록의 셀 벽을 보여준다 (55 ㎏/㎥ 에서 발포됨).
도 5 는 비교예 2 에 따른 발포 실린더를 포여준다 (55 ㎏/㎥ 에서 발포됨).
도 6 은 비교예 3 에 따른 펠렛의 내부 구조를 보여준다.
도 7 은 비교예 3 에 따른 펠렛의 외부 스킨을 보여준다.
도 8 은 비교예 4 에 따른 조사 후 펠렛을 보여준다.
Claims (16)
- 물/건조 전분 중량 비율 4 로 밀폐형 캡슐 내에서 시차 주사 열량측정법 (DSC) 에 의해 분석될 때 0.4 J/건조 전분의 g 초과의 ΔΗ 와 연관되는 흡열성 젤라틴화 피크를 갖지 않는 천연 결정성이 본질적으로 없는 전분을 포함하고,
- 보이드 면적이 펠렛의 단면적에 대해 15 % 초과인 다공성 내부 구조;
- 100 microns 미만인 공극의 평균 등가 지름;
- 공극 수가 내부 구조에 대해 80 % 미만이고, 외부 스킨의 공극의 평균 등가 지름이 내부 구조의 공극의 평균 등가 지름 이하인 외부 스킨
을 특징으로 하는, 발포 물품의 제조에 적합한 조사에 의해 발포가능한 생분해성 저밀도, 셀프-실링 펠렛. - 제 1 항에 있어서, 합성 또는 천연 기원의 1 종 이상의 추가의 중합체를 포함하는 것을 특징으로 하는 생분해성 저밀도, 셀프-실링 펠렛.
- 제 2 항에 있어서, 건조 펠렛의 총 중량에 대해,
- 10 ~ 99.5 중량% 의 천연 결정성이 본질적으로 없는 전분,
- 0.5 ~ 90 중량% 의 합성 또는 천연 기원의 1 종 이상의 추가의 중합체
를 포함하는 것을 특징으로 하는 생분해성 저밀도, 셀프-실링 펠렛. - 제 2 항에 있어서, 상기 천연 기원의 추가의 중합체가 셀룰로스, 리그닌, 단백질, 인지질, 카제인, 다당류, 천연 고무, 로진산, 덱스트린, 그들의 혼합물 및 그들의 유도체로부터 선택되는 생분해성 저밀도, 셀프-실링 펠렛.
- 제 2 항에 있어서, 상기 합성 기원의 추가의 중합체가 하기로부터 선택되는 생분해성 저밀도, 셀프-실링 펠렛:
- C2-C24 주쇄를 갖는 선형 또는 분지형 지방족 히드록시 산, 그들의 락톤 또는 락티드의 단독중합체 및 공중합체, 및 그들과 이산 및 디올 유형의 지방족 폴리에스테르와의 공중합체로 이루어진 군에서 선택되는 열가소성 중합체;
- 아크릴레이트 또는 메타크릴레이트로 개질될 수도 있는 가수분해도가 다양한 폴리비닐 알코올, 가수분해도가 70 mol% 초과인 폴리비닐 알코올-코-비닐아세테이트 블록 또는 랜덤 공중합체, 그것의 용융점을 낮추기 위해 개질되거나 가소화된 폴리비닐 알코올, 폴리비닐아세테이트, 가수분해도가 다양한 비닐 아세테이트와 비닐 피롤리돈, 스티렌, 또는 비닐 피롤리돈 및 스티렌과의 공중합체, 폴리에틸옥사졸린 및 폴리비닐피리딘으로 이루어진 군으로부터 선택된 비닐 중합체;
- 폴리카르보네이트;
- 에틸렌-비닐 알코올 공중합체, 에틸렌과 비닐 아세테이트 또는 불포화 산과의 공중합체, 폴리아미드 6, 6-6, 6-9, 6-10, 9, 9-9, 10, 10-10, 11, 11-11, 12, 12-12 및 그들의 혼합물, 지방족 폴리우레탄, 폴리우레탄-폴리아미드 랜덤 또는 블록 공중합체, 폴리우레탄-폴리에테르 랜덤 또는 블록 공중합체, 폴리우레탄-폴리에스테르 랜덤 또는 블록 공중합체, 폴리아미드-폴리에테르 랜덤 또는 블록 공중합체, 폴리아미드-폴리에스테르 랜덤 또는 블록 공중합체, 폴리에스테르-폴리에테르 랜덤 또는 블록 공중합체, 또는 에폭시 수지;
- 지방족 부분을 갖거나 지방족 및 방향족 부분 둘다를 갖는, 이산 및 디올 유형의 랜덤 또는 블록 폴리에스테르 또는 코폴리에스테르;
- 합성 고무;
- 폴리올레핀, 방향족 폴리에스테르, 폴리비닐 클로리드, 폴리스티렌 및 아크릴로니트릴-부타디엔-스티렌 공중합체로 이루어진 군으로부터 선택된 비 생분해성 중합체;
- 분자량이 50000 초과인 폴리옥시알킬렌. - 제 5 항에 있어서, 상기 합성 기원의 추가의 중합체가 가수분해도가 70 mol% 초과인 폴리비닐 알코올-코-비닐아세테이트 공중합체인 생분해성 저밀도, 셀프-실링 펠렛.
- 제 1 항에 있어서, 외부 스킨의 상기 공극이 평균 등가 지름이 50 ㎛ 미만인 것을 특징으로 하는 생분해성 저밀도, 셀프-실링 펠렛.
- 제 1 항에 있어서, 물 함량이, 상기 펠렛의 건조 조성물의 총 중량에 대해 22±2 중량% 로 조정되었을 때, 밀도가 1.1 g/㎤ 미만 및 0.5 g/㎤ 초과인 것을 특징으로 하는 생분해성 저밀도, 셀프-실링 펠렛.
- 제 1 항에 있어서, 상기 전분이 고유 점도가 1.5 dl/g 초과 및 3 dl/g 미만인 생분해성 저밀도, 셀프-실링 펠렛.
- (a) 전분 및 물을 포함하는 조성물을 압출기에 공급하는 단계,
(b) 전분의 천연 결정성을 파괴하기에 적합한 압출 속도, 체류 시간 및 배출구에서의 전단 속도로 상기 조성물을 압출하여 용융물을 형성하고, 노즐을 떠날 때 압출물이 팽창되고 그 후 붕괴되는 단계,
(c) 압출물이 아직 완전히 고체화되지 않았을 때 절단되는 식으로 붕괴된 압출물을 다이를 떠난 후 곧 펠렛 형태로 절단하여, 가능한 열린 공극을 밀봉하고 절단면에서 스킨을 재구성하는 단계,
(d) 상기 펠렛을 실온 이상에서 공기에 노출시킴으로써 수분 함량을 펠렛의 총 건조 중량에 대해 10 ~ 45 % 로 조정하는 단계
를 포함하는 것을 특징으로 하는,
- 보이드 면적이 펠렛의 단면적에 대해 15 % 초과인 다공성 내부 구조;
- 100 microns 미만인 공극의 평균 등가 지름;
- 보이드 면적이 펠렛의 외부 스킨의 면적에 대해 15 % 미만인 외부 스킨
을 특징으로 하는,
조사에 의해 발포가능한 생분해성 저밀도, 셀프-실링 펠렛의 제조 방법. - 고유 점도가 1.9 ~ 3 dl/g 인 것을 특징으로 하는, 제 1 항 내지 제 9 항 중 어느 한 항에 따른 생분해성 저밀도, 셀프-실링 펠렛의 조사에 의해 수득되는 발포 물품.
- 제 11 항에 있어서, 밀도가 80 ㎏/㎥ 미만인 것을 특징으로 하는 발포 물품.
- 제 11 항에 있어서, 가전 제품, 전자 산업 제품, 가구 보호용 포장재, 식품 포장재 또는 농업용 포장재를 제조하는데 사용되는 발포 물품.
- 제 5 항에 있어서, 폴리비닐 알코올-코-비닐아세테이트 블록 또는 랜덤 공중합체의 가수분해도가 80 mol% 초과인 생분해성 저밀도, 셀프-실링 펠렛.
- 제 14 항에 있어서, 폴리비닐 알코올-코-비닐아세테이트 블록 또는 랜덤 공중합체의 가수분해도가 85 mol% 초과인 생분해성 저밀도, 셀프-실링 펠렛.
- 제 5 항에 있어서, 상기 에틸렌-비닐-알코올 공중합체가 50 중량% 이하의 에틸렌 단위를 포함하는 생분해성 저밀도, 셀프-실링 펠렛.
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ITMI2010A000865A IT1400247B1 (it) | 2010-05-14 | 2010-05-14 | Granuli biodegradabili espandibili per irraggiamento |
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PCT/EP2011/057802 WO2011141573A1 (en) | 2010-05-14 | 2011-05-13 | Biodegradable pellets foamed by irradiation |
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DE102015202013B4 (de) * | 2015-02-05 | 2019-05-09 | Adidas Ag | Verfahren zur Herstellung eines Kunststoffformteils, Kunststoffformteil und Schuh |
US10400105B2 (en) | 2015-06-19 | 2019-09-03 | The Research Foundation For The State University Of New York | Extruded starch-lignin foams |
CN107129647A (zh) * | 2017-06-23 | 2017-09-05 | 广西南宁桂尔创环保科技有限公司 | 一种阻燃易降解环保高分子泡沫材料及其制备方法 |
US10920043B2 (en) * | 2017-09-19 | 2021-02-16 | NewStarch Solutions, LLC | Sheets of starch based packing material, starch pellets for sheet extrusion and methods for forming the pellets and sheets |
US10507968B2 (en) | 2017-12-18 | 2019-12-17 | Pratt Retail Specialties, Llc | Modular box assembly |
CN108948665B (zh) * | 2018-07-04 | 2020-07-07 | 湖北恒驰电子科技有限公司 | 一种无卤树脂组合物及用其制备的挠性覆铜板 |
CN110790985B (zh) * | 2018-08-02 | 2022-07-19 | 广州绿发材料科技有限公司 | 淀粉泡沫材料及其制备方法 |
US11718464B2 (en) | 2020-05-05 | 2023-08-08 | Pratt Retail Specialties, Llc | Hinged wrap insulated container |
CN112063008B (zh) * | 2020-09-17 | 2022-07-01 | 优尔爱(常州)医疗科技有限公司 | 一种具有密度梯度的水溶性海绵及其制备方法及其应用 |
US12270153B2 (en) | 2021-02-11 | 2025-04-08 | Pratt Corrugated Holdings, Inc. | Starch-cellulose composite material |
PL438788A1 (pl) | 2021-08-20 | 2023-02-27 | Grupa Azoty Spółka Akcyjna | Sposób wytwarzania biodegradowalnej kompozycji polimerowej, zawierającej skrobię termoplastyczną oraz syntetyczny polimer biodegradowalny, biodegradowalna kompozycja polimerowa wytworzona tym sposobem oraz jej zastosowanie jako materiał do wytwarzania modeli w druku przestrzennym w technologii FFF |
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WO2011141573A1 (en) | 2011-11-17 |
EP2569363A1 (en) | 2013-03-20 |
US10745542B2 (en) | 2020-08-18 |
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BR112012027899A2 (pt) | 2018-05-08 |
CA2797285C (en) | 2018-07-03 |
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AU2011251907B2 (en) | 2014-10-30 |
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US20130065055A1 (en) | 2013-03-14 |
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AU2011251907A1 (en) | 2012-11-22 |
KR20130109002A (ko) | 2013-10-07 |
CA2797285A1 (en) | 2011-11-17 |
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