KR970704579A - 다층적층체 및 그의 용도 - Google Patents

다층적층체 및 그의 용도 Download PDF

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KR970704579A
KR970704579A KR1019970700041A KR19970700041A KR970704579A KR 970704579 A KR970704579 A KR 970704579A KR 1019970700041 A KR1019970700041 A KR 1019970700041A KR 19970700041 A KR19970700041 A KR 19970700041A KR 970704579 A KR970704579 A KR 970704579A
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cycloolefin
ethylene
group
random copolymer
atm
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KR1019970700041A
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KR100316898B1 (ko
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토시유끼 히로세
시게토시 니시지마
요오조오 야마모토
히데시 까와찌
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고다 시게노리
미쓰이세키유 가가쿠고교 가부시끼가이샤
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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Abstract

(A)본 발명은 특정 구조식(예, 테트라시클로도데센)으로 표시되는 시클로올레핀과 에틸렌의 공중합체인에틸렌/시클로올레핀 랜덤 공중합체로 된 층 또는 에틸렌/시클로올레핀 랜덤 공중합체의 그라프트 변성물인 시클로올레핀 수지로 된 층 또는 시클로올레핀 수지와 폴리올레핀으로 구성되는 시클로올레핀 수지 조성물로 된 층과; (B) 23℃의 온도와 0%의 RH에서 측정한 산소투과율이 10㏄(STP)·㎜/㎡·24hr·atm 이하인 중합체 층으로 구성되며, 0.2ｇㆍ㎜/㎡ㆍ24hrㆍatm 이상의 습기투과율과 5CC(STP)ㆍ㎜/㎡ㆍ24hrㆍatm 이하의 산소투 과율을 갖는 다층적층체로서, 우수한 가스차단특성과 고강성을 가지며 또한 본 발명의 다층적층체를 사용하여 포장재와 필름을 제공할 수 있다.

Description

다층적층체 및 그의 용도
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. (A) 하기성분으로 구성되는 그룹으로부터 선택한 적어도 하나의 시클로올레핀 수지로부터 형성되는 층과; (a-1) 하기식(1) 또는 (2)로 표시되는 시클로올레핀과 에틸렌으로 된 에틸렌/시클로올레핀 랜덤 공중합체, (a-2) 에틸렌/시클로올레핀 랜덤 공중합체(a-1)의 그라프트 변성물, 또는 에틸렌/시클로올레핀 랜덤 공중합체(a-1)그라프트 변성물(a-2)로 구성되는 그룹으로부터 선택한 적어도 하나의 시클로올레핀 수지로 된 시클로올레핀 수지 조성물로부터 형성되는 층, 및 (b) 폴리올레핀, (B) 23℃의 온도와 0%의 RH에서 측정한 산소투과율이 10㏄(STP) ·㎜/㎡·24hr·atm 이하인 중합체층으로 구성되며, 상기 다층적충체는 0.2g·㎜/㎡·24hr·atm 이하의 산소투과율과 5CC(STP)ㆍ㎜/㎡-24hr㎡ㆍatm 이하의 산소투과율을 갖는 것을 특징으로 하는 다층적충체;
    상기 식에서 n은 0 또는 1, m은 0 또는 양의 정수, q는 0 또는 1, R¹∼R18, Ra및 Rb는 각각 독립적으로 수소원자, 할로겐원자 및 탄화수소기로 구성되는 그룹으로부터 선택한 기 또는 원자 R∼R은 서로 결합하여 각각 이중결합을 가질 수도 있는 단환 또는 다환을 형성할 수 있고, R15과 R16또는 R17과 R18은 알킬리덴기를 형성할 수도 있고 또한 q가 0일 경우, 결합손이 서로 결합하여 5원환을 형성함.
    상기 식에서 m은 0 또는 양의 정수, h는 0 또는 양의 정수, j와 k는 각각 0, 1 또는 2, R7∼R15와 R17및 R18은 각각 독립적으로 수소원자, 할로겐원자 및 탄화수소기로 구성되는 그룹으로부터 선택한 기 또는 원자, R19∼R27은 각각 독립적으로 수소원자, 할로겐원자, 탄화수소기 및 알콕시기로 구성되는 그룹으로부터 선택한 기 또는 원자임.
  2. 제1항에 있어서, 상기 다층적층체의 산소투과율은 1㏄(STP)·㎜/㎡·24hr·atm 이하인 것을 특징으로 하는 다층적충체.
  3. 제1항에 있어서, 상기 다층적층체의 산소투과율은 0.5㏄(STP)·㎜/㎡·24hr·atm 이하인 것을 특징으로 하는 다층적충체.
  4. 제1항에 있어서, 시클로올레핀 랜덤 공중합체(a-1)와 그라프트 변성물(a-2)은 135℃의 데카린중에서 측정한 극한점도〔m〕가 0.01∼10d1/g, 연화온도(TMA)가 50℃ 이상인 것을 특징으로 하는 다층적층체.
  5. 제1항에 있어서, 중합체층(B)은 에틸렌/비닐알콜 공중합체에로부터 형성되는 것을 특징으로 하는 다층적층체.
  6. 제1항에 있어서, 시클로올레핀 수지는 에틸렌/시클로올레핀 랜덤 공중합체(a-1)인 것을 특징으로 하는 다층적층체.
  7. 제1∼6항 중 어느 한 항 기재의 다층체로 된 것을 특징으로 하는 용기 또는 포장재.
  8. 제7항에 있어서, 상기 포장재는 프레스 스루 팩 또는 블리스터 팩인 것을 특징으로 하는 용기 또는 포장재.
  9. 제7항에 있어서, 상기 포장재는 식품용 포장재인 것을 특징으로 하는 용기 또는 포장재.
  10. 제1∼6항 중 어느 한 항 기재의 다층적충체로 된 것을 특징으로 하는 쉬트 또는 필름.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970700041A 1994-07-05 1995-07-04 다층적층체및그의용도 KR100316898B1 (ko)

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US6165573A (en) 2000-12-26
WO1996001184A1 (fr) 1996-01-18
EP0773102A4 (en) 1997-08-06
EP0773102A1 (en) 1997-05-14
KR100316898B1 (ko) 2002-06-27
CN1089680C (zh) 2002-08-28
CN1151715A (zh) 1997-06-11

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