KR960010734A - 필수 선형 폴리올레핀의 교차- 결합된 발포 구조 및 그 제조방법 - Google Patents

필수 선형 폴리올레핀의 교차- 결합된 발포 구조 및 그 제조방법 Download PDF

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KR960010734A
KR960010734A KR1019950030553A KR19950030553A KR960010734A KR 960010734 A KR960010734 A KR 960010734A KR 1019950030553 A KR1019950030553 A KR 1019950030553A KR 19950030553 A KR19950030553 A KR 19950030553A KR 960010734 A KR960010734 A KR 960010734A
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cross
linking
composition
blowing agent
copolymer
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에프. 헬레이 로버트
엘. 코즈마 마츄
에이. 페이쉬췽거 쿠르트
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존 디. 밤바라
센티넬 프로덕츠 코포레이션
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Abstract

본 발명은 신규의 교차-결합 중합체 발포 조성물 및 이들의 제조방법을 제공하기 위한 것이다. 상기 신규의 조성물은 새로운 교차-결합된 폴리올레핀 공중합체를 이용하고 종래의 저밀도 폴리에틸렌 조성물에 비하여 강도, 질감, 유연성, 열 저항성 및 열-봉합 온도 범위에 있어서 진보됨을 보였다. 상기 신규 조성물은 또한 선형의 저밀도 폴리에틸렌 보다 가공상 진보성을 보여준다. 필수적으로 선형인 신규의 폴리올레핀은 적어도 하나의 알파-불포화 C3 내지 C20 올레핀계 공단량체 그리고 선택적으로 적어도 하나의 C3 내지 C20폴리엔과 중합된 에틸렌으로 구성되고, 교차-결합되지 않은 상태로 약 0.86g/㎤ 내지 0.96g/㎤ 범위의 수지 밀도, 약 0.5dg/min 내지 100dg/min 범위의 용융지수, 약 1.5 내지 3.5범위의 분자량 분포 및 약 46% 이상의 조성물 분포 넓이 지수를 나타낸다.

Description

필수 선형 폴리올레핀의 교차-결합된 발포 구조 및 그 제조방법
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Claims (22)

  1. (ⅰ)약 0.86g/㎤ 내지 0.96g/㎤ 범위의 수지 밀도, (ⅱ)약 0.5dg/min 내지 100dg/min 범위의 용융 지수, (ⅲ)약 1.5 내지 3.5 범위의 분자량 분포, 및 (ⅳ)약 45% 이상의 조성물 분포 넓이 지수에 의하여 특징 지워지는 공중합체를 제조하도록 C3 내지 C20알파-불포화 에틸렌 단량체로 에틸렌을 공중합시키고; 조성물 내에 교차-결합을 유도하고; 그 조성물을 팽창시키는 단계로 구성된 발포성 물질의 제조방법.
  2. 제1항에 있어서, 상기 공중합체가 적어도 하나 이상의 C3 내지 C20폴리엔으로 중합되는 것을 특징으로 하는 방법.
  3. 제1항에 있어서, 상기 공중합체가 실질적으로 긴-사슬 곁가지가 없는 것을 특징으로 하는 방법.
  4. 제3항에 있어서, 상기 공중합체가 실질적으로 20탄소원자 이상을 가지는 곁가지가 없는 것을 특징으로 하는 방법.
  5. 제1항에 있어서, 상기 조성물이 적어도 약 5%이상 약 100% 이하의 상기 폴리올레핀 공중합체를 포함하는 중합체 혼합물로 구성되는 것을 특징으로 하는 방법.
  6. 제1항에 있어서, 상기 조성물이 화학적으로 분해 가능한 발포제로 더 구성되는 것을 특징으로 하는 방법.
  7. 제6항에 있어서, 상기 발포제가 교차-결합에 영향을 미치기 전에 첨가되는 것을 특징으로 하는 방법
  8. 제6항에 있어서, 상기 발포제가 교차-결합에 영향을 미친 후에 첨가되는 것을 특징으로 하는 방법.
  9. 제1항에 있어서, 상기 조성물이 물리적 발포제로 더 구성되는 것을 특징으로 하는 방법.
  10. 제9항에 있어서, 상기 발포제가 교차-결합에 영향을 미치기 전에 첨가되는 것을 특징으로 하는 방법.
  11. 제9항에 있어서, 상기 발포제가 교차-결합에 영향을 미친 후에 첨가되는 것을 특징으로 하는 방법.
  12. 제1항에 있어서, 상기 교차-결합이 실란 교차-결합제와 중합체 조성물을 반응시킴으로써 영향을 받는 것을 특징으로 하는 방법.
  13. 제1항에 있어서, 상기 교차-결합이 자유-라디칼 생성 개시제에 의하여 영향을 받는 것을 특징으로 하는 방법.
  14. 제1항에 있어서, 상기 교차-결합이 방사선 조사에 의하여 영향을 받는 것을 특징으로 하는 방법.
  15. 제1항에 있어서, 부가적인 반응성 단량체가 교차-결합제로서 포함되는 것을 특징으로 하는 방법.
  16. 제11항에 있어서, 상기 부가적인 중합체 수지를 그라프트 후에 그러나 교차-결합 도입 전에 조성물에 첨가하는 것을 특징으로 하는 방법.
  17. 제1항에 있어서, 상기 물질의 밀도가 22pcf 이하 0.7pcf 이상인 것을 특징을 하는 방법.
  18. 제1항에 있어서, 상기 물질 내에 적어도 70% 이상의 셀이 밀폐되어 있는 것을 특징으로 하는 방법.
  19. 제1항에 있어서, 상기 조성물이 약 5% 이상 약 40% 이하의 폴리올레핀 공중합체로 구성되는 것을 특징으로 하는 방법.
  20. 제1항에 있어서, 상기 조성물이 70% 이상의 폴리올레핀 공중합체로 구성되는 것을 특징으로 하는 방법.
  21. 제1항에 있어서, 상기 물질이 비드(bead)인 것을 특징으로 하는 방법.
  22. 제1항에 있어서, 상기 방법에 따라 제조된 물질.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950030553A 1994-09-19 1995-09-19 필수 선형 폴리올레핀의 교차- 결합된 발포 구조 및 그 제조방법 KR960010734A (ko)

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DE69528941D1 (de) 2003-01-09
US5883145A (en) 1999-03-16
EP0702032A3 (en) 1999-04-07
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JP4057657B2 (ja) 2008-03-05
DE69528941T2 (de) 2003-09-18

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