KR960004377A - 코어-쉘 입자 구조를 갖는 테트라플루오로에틸렌-에틸렌형 공중합체 - Google Patents

코어-쉘 입자 구조를 갖는 테트라플루오로에틸렌-에틸렌형 공중합체 Download PDF

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KR960004377A
KR960004377A KR1019950020255A KR19950020255A KR960004377A KR 960004377 A KR960004377 A KR 960004377A KR 1019950020255 A KR1019950020255 A KR 1019950020255A KR 19950020255 A KR19950020255 A KR 19950020255A KR 960004377 A KR960004377 A KR 960004377A
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copolymer
mol
particle
tetrafluoroethylene
melting point
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KR1019950020255A
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페터 뭘바우어 한스
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빌렌슈타인, 클라인
훽스트 아크티엔게젤샤프트
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Publication of KR960004377A publication Critical patent/KR960004377A/ko

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F259/00—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00
    • C08F259/08—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing fluorine
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S525/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S525/902—Core-shell

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

입자 코어와 하나 이상의 입자 쉘을 포함하는 콜로이드성 입자의 수성 분산액은, 테트라플루오로에틸렌, 에틸렌 및, 필요한 경우, 다른 플루오로올레핀 공단량체를 공중합시켜 시드 분산액을 제조한 다음, 융점이 입자 코어보다 20℃ 이상 낮은 중합체인 입자 쉘에 단량체를 공급하여 계속 중합시킴으로써 수득하며, 여기서 입자 쉘의 용적은 전체 용적의 1 내지 26용적%이다. 이러한 분산액을 응고 또는 분무 건조시켜 다공성 구조물의 제조에 적합한 분말을 수득할 수 있다.

Description

코어-쉘 입자 구조를 갖는 테트라플루오로에틸렌-에틸렌형 공중합체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (10)

  1. 테트라플루오로에틸렌 단위 32 내지 60mol%, 에틸렌 단위 40 내지 60mol% 및 하나 이상의 공중합가능한 플루오로올레핀 단량체 단위 0 내지 8mol%를 갖는 공중합체의 입자 코어(a) 및 융점이 입자 코어의 공중합체의 융점보다 20℃ 이상 낮은 융점가공성 중합체의 하나 이상의 입자 쉘(b)을 포함하며, 입자 쉘(들)의 용적이 입자 전체 용적의 1 내지 26용적%인 용융가공성 공중합체의 콜로이드성 입자의 수성 분산액.
  2. 제1항에 있어서, 입자 코어를 구성하는 공중합체의 융점이 250℃ 이상인 분산액.
  3. 제1항 또는 제2항에 있어서, 입자 코어를 구성하는 공중합체가 테트라플루오로에틸렌 공중합 단위 60 내지 40mol%와 에틸렌 단위 40 내지 60mol%를 포함하는 분산액.
  4. 제1 또는 제2항에 있어서, 공중합가능한 플루오로올레핀 단량체가 탄소수 3 내지 8의 퍼플루오로올레핀, 하기 일반식(Ⅰ)의 퍼플루오로(알킬 비닐 에테르) 또는 하기 일반식(Ⅱ)의 플루오로올레핀인 분산액.
    Rf1-[O-CF(CF3)-CF2]n-CF2-CF=CF2(Ⅰ)
    상기 식에서, Rf1은 탄소수 1 내지 5의 퍼플루오로알킬 라디칼이고, n은 0 내지 3이며, Rf2 및 Rf3은 각각 탄소수 1 내지 8의 퍼플루오로알킬 라디칼이고, Rf4는 F 또는 CF3이다.
  5. 제1항 내지 제4항 중의 어느 한 항에 있어서, 입자 쉘을 구성하는 중합체가 테트라플루오로에틸렌, 에틸렌 및 하나 이상의 다른 불소 함유 공단량체의 공중합 단위를 포함하는 공중합체인 분산액.
  6. 제5항에 있어서, 공중합체가 테트라플루오로에틸렌 20 내지 30mol%와 에틸렌 단위 40 내지 60mol% 및 헥사플루오로프로펜 10 내지 30mol%를 포함하는 분산액.
  7. 응고된 2차 입자의 평균 입자 크기가 5㎛ 내지 2㎜인, 제1항 내지 제6항 중의 어느 한 항에서 청구한 플루오로중합체의 응고 분말.
  8. 분무 건조시켜 수득된 2차 입자의 평균 입자 크기가 1 내지 100㎛인, 제1항 내지 제6항 중의 어느 한 항에서 청구한 플루오로중합체의 응고 분말.
  9. 테트라플루오로에틸렌, 에틸렌 및 필요한 경우, 다른 플루오로올레핀 공단량체를 공중합시켜 시드 분산액(seed dispersion)을 제조하는 단계(A) 및 단계(A)에서 수득된 시드 분산액의 존재하에 융점이 단계(A)의 공중합체의 융점보다 20℃ 이상 낮은 중합체인 입자 쉘에 단량체를 공급하여 계속 중합시키는 단계(B)를 포함하는, 입자 쉘(들)의 용적이 콜로이드성 입자 전체 용적의 1 내지 26용적%인, 제1항 내지 제6항 중의 어느 한 항에서 청구한 분산액의 제조방법.
  10. 다공성 구조물을 제조하기 위한, 제7항 또는 제8항에서 청구한 분말의 용도.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950020255A 1994-07-12 1995-07-11 코어-쉘 입자 구조를 갖는 테트라플루오로에틸렌-에틸렌형 공중합체 KR960004377A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4424466A DE4424466A1 (de) 1994-07-12 1994-07-12 Copolymeres vom Typ Tetrafluorethylen-Ethylen mit einer Kern-Hülle-Teilchenstruktur
DEP4424466.5 1994-07-12

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KR960004377A true KR960004377A (ko) 1996-02-23

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US (1) US5506281A (ko)
EP (1) EP0692504B1 (ko)
JP (1) JPH08100033A (ko)
KR (1) KR960004377A (ko)
CN (1) CN1121929A (ko)
CA (1) CA2153622A1 (ko)
DE (2) DE4424466A1 (ko)
ZA (1) ZA955737B (ko)

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DE59501479D1 (de) 1998-04-02
US5506281A (en) 1996-04-09
JPH08100033A (ja) 1996-04-16
ZA955737B (en) 1996-02-21
CN1121929A (zh) 1996-05-08
DE4424466A1 (de) 1996-01-18
EP0692504A1 (de) 1996-01-17
CA2153622A1 (en) 1996-01-13
EP0692504B1 (de) 1998-02-25

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