KR950703609A - 물성이 개선된 연성 필름(soft films having enhanced physical properties) - Google Patents

물성이 개선된 연성 필름(soft films having enhanced physical properties) Download PDF

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KR950703609A
KR950703609A KR1019950701008A KR19950701008A KR950703609A KR 950703609 A KR950703609 A KR 950703609A KR 1019950701008 A KR1019950701008 A KR 1019950701008A KR 19950701008 A KR19950701008 A KR 19950701008A KR 950703609 A KR950703609 A KR 950703609A
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윌리암 존 호지슨 쥬니어
리차드 웨인 홀
챨스 릴라드 피어스
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벤씨. 카렌헤드
엑손 케미칼 패턴츠 인코포레이티드
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    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
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    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/043—HDPE, i.e. high density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
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    • B32B2323/046—LDPE, i.e. low density polyethylene
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    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
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    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/943—Polymerization with metallocene catalysts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
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  • Engineering & Computer Science (AREA)
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  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
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Abstract

본 발명은 0.08 내지 0.925g/㎤의 밀도, 0.5 내지 7.5dg/분의 용융 지수, 3.5이하의 분자량 분포 및 70%보다 큰 조성 분포 폭 지수를 가진 아주 저밀도의 에틸렌 중합체 25 내지 90중량% 및 0.910 내지 0.935g/㎤ 범위의 밀도, 0.5 내지 20dg/분의 용융 지수, 3.5 보다 큰 분자량 분포 및 70% 미만의 조성 분포 폭 지수를 가진 저밀도 내지 중간밀도의 에틸렌 중합체 10 내지 75중량%의 블렌드를 포함하는 중합체 조성물을 제공한다.
또한 본 발명은 단일 층 구조 또는 판상 ABA구조(이때, A 또는 외피 층들은 본 발명의 블렌드를 포함하고 B 또는 코아 층은 고밀도 폴리에틸렌과 같은 상이한 올레핀 중합체를 포함한다)을 가진 상기 블렌드로부터 제조한 필름을 제공한다.
본 발명의 필름을 탁월한 신장성, 인장성 및 충격 성질 및 또한 유연성, 감촉 및 소음 성질을 원하는 기저귀, 침대 패드 제품등과 같은 흡수 제품의 제조시에, 배면 시이트 구성 성분으로서 사용하기에 매우 적합하게 하는 상기 성질들을 나타낸다.

Description

물성이 개선된 연성 필름(SOFT FILMS HAVING ENHANCED PHYSICAL PROPERTIES)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (16)

  1. a) 중합체 함량을 기준을 25 내지 90중량%의, 0.88 내지 0.925g/㎤의 밀도, 0.5 내지 7.5dg/분의 용융 지수, 3.5 이하의 분자량 분포 및 70% 보다 큰 조성 분포 폭 지수를 가진, 에틸렌과 C4내지 C20α-모노올레핀 공단량체이 공중합체, 및 b) 중합체 함량을 기준으로 10 내지 75중량%의 0.910 내지 0.935g/㎤범위의 밀도, 0.5 내지 20dg/분의 용융 지수, 3.5 이상의 분자량 분포 및 70% 미만의 조성 분포 폭 지수를 가진 저밀도 내지 중간 밀도의 에틸렌 중합체의 혼합물을 포함하는 중합체 조성물.
  2. i) 제1항에 따른 중합체 혼합물을 제조하는 단계; ii) 상기 혼합물을 주조 롤 및 압력 롤에 의해 형성된 닙으로 288℃ 이하의 온도에서 용융 압출하는 단계; 및 iii) 상기 필름을 254cm/초를 초과하는 선 속도로 상기 주초 롤로부터 인발하는 단계를 포함하는, 폴리올레핀 필름 물질을 제조하는 동안 인발공진을 감소시키는 방법.
  3. 제1항의 조성물로부터 또는 제2항의 방법에 의해 제조된 필름.
  4. 제1 내지 3항 중어느 한 항에 있어서, 50 내지 80중량%의 성분 (a) 및 20 내지 50중량%의 성분(b)를 함유하는 조성물.
  5. 제1 내지 4항 중 어느 한 항에 있어서, 성분 (b)가 0.915g/㎤ 이상의 밀도를 가진 저밀도 에틸렌 중합체인 조성물.
  6. 제1 내지 5항 중 어느 한 항에 있어서, 성분 (b)가 5 내지 15dg/분의 용융 지수를 가진 에틸렌 중합체인 조성물.
  7. 제1 내지 6항 중 어느 한 항에 있어서, 상기 에틸렌 공중합체 (a)가 4 내지 15몰%의 상기 공단량체를 함유하는 조성물.
  8. 제1 내지 7항 중 어느 한 항에 있어서, 상기 성분 (a)가 에틸렌과 C4내지 C20α-모노올레핀의 상기 공중합체 및 상기 α-모노올레핀과 상이한 추가의 C4내지 C20α-올레핀을 포함하는 삼원 공중합체인 조성물.
  9. 12μ 내지 52μ범위의 두께를 가진 제2 또는 제3항의 필름.
  10. 단일층 필름인 제2 또는 3항의 필름.
  11. 각각의 A층은 상기 혼합물을 포함하고 B층은 상이한 폴리올레핀 조성물을 포함하는 ABA 구조의 판상 필름인 제2 또는 3항의 필름.
  12. 제11항에 있어서, 상기 B층이 HDPE 또는 재생된 HDPE인 필름.
  13. 제11항에 있어서, 상기 B층이 20 내지 75중량%의 상기 필름을 포함하는 필름.
  14. 제2 또는 3항의 필름으로부터 제조된 제품.
  15. 제2항에 있어서, 상기 용융 압출 온도가 246℃ 이상인 방법.
  16. 제2항에 있어서, 상기 주조 롤에 엠보싱된 표면이 있어 매트(matte)표면의 필름을 제공하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950701008A 1992-09-16 1993-09-13 물성이개선된연성필름 KR100262833B1 (ko)

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US94576992A 1992-09-16 1992-09-16
US07/945769 1992-09-16
US7/945769 1992-09-16
PCT/US1993/008586 WO1994006857A1 (en) 1992-09-16 1993-09-13 Soft films having enhanced physical properties

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EP (1) EP0662988B2 (ko)
JP (1) JP3307395B2 (ko)
KR (1) KR100262833B1 (ko)
AT (1) ATE148905T1 (ko)
BR (1) BR9307060A (ko)
CA (1) CA2144737C (ko)
DE (1) DE69308153T3 (ko)
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CA2144737C (en) 2002-04-23
BR9307060A (pt) 1999-06-29
KR100262833B1 (ko) 2000-08-01
DE69308153D1 (de) 1997-03-27
WO1994006857A1 (en) 1994-03-31
EP0662988A1 (en) 1995-07-19
US5376439A (en) 1994-12-27
JP3307395B2 (ja) 2002-07-24
JPH08501812A (ja) 1996-02-27
EP0662988B2 (en) 2011-03-30
ATE148905T1 (de) 1997-02-15
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CA2144737A1 (en) 1994-03-31
DE69308153T2 (de) 1997-05-28

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