KR930700590A - 폴리프로필렌 폼 시이트 - Google Patents

폴리프로필렌 폼 시이트

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KR930700590A
KR930700590A KR1019920702195A KR920702195A KR930700590A KR 930700590 A KR930700590 A KR 930700590A KR 1019920702195 A KR1019920702195 A KR 1019920702195A KR 920702195 A KR920702195 A KR 920702195A KR 930700590 A KR930700590 A KR 930700590A
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mixture
foam
sheet
foam sheet
plasticized
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KR960003278B1 (ko
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지. 게이로드 노먼
카츠 레온
피. 파크 존
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원본미기재
더 제임스 리버 코포레이션
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Abstract

내용 없음.

Description

폴리프로필렌 폼 시이트
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 탠덤폼압출라인이 개락도이다.
제2도는 폴리프로필렌수지 A-6으로부터 제조한 폴리프로필렌 폼시이트의 단면의 주사전자현미경(SEM)의 현미경사진이다.
제3도는 폴리프로필렌수지 A-7으로부터 제조한 폴리프로필렌 폼 시이트의 단면의 주사전자현미경(SEM)의 현미경사진이다.

Claims (24)

  1. (가)적어도 1.0×106또는 적어도 3.0의 M2z/MW비, 그리고, (나)적어도 12×10-5cm2/dyne의 평형 컴플라이언스 Jeo또는 1 sec-1에서 적어도 5×10-5cm2/dyne의 단위응력 당 회복가능한 전단스트레인 Sr/S으로 특징지어지는 폴리프로필렌의 폼시이트.
  2. 보다 높은 분자량 분율이 가지달린 중합체를 포함하는 이종류의 분자량분포를 가지는 폴리프로필렌의 폼 시이트.
  3. 제1항에 있어서, 상기 시이트가 2.5내지 25.0lbs/ft3의 밀도와 10,000 내지 50,000psi의 굽힘계수를 가지는 폼 시이트.
  4. 제1항에 있어서, 상기 시이트가 5내지 18mil의 범위의 세포를 갖는 폼 시이트.
  5. 제1항에 있어서, 상기 시이트가 0.020 내지 0.200inch의 두께를 가지는 폼 시이트.
  6. 제1항에 있어서, 상기 시이트가 한쪽 또는 양쪽면상에 실제적으로 비-세포상의 외부층 또는 껍질을 가지는 폼 시이트.
  7. 펠렛화된 폴리프로필렌과 결정생성제를 혼합하고, 상기 혼합물을 가소화하고, 실제적으로 가소화된 혼합물내로 물질적 발포제를 주입하여 발포혼합물을 형성하고, 상기 발포 혼합물을 성형된 압출물로 압출하고, 그리고상기 발포 압출물을 연속 폼 시이트로 성형하는 단계들을 포함하는 폴리프로필렌 폼 시이트를 제조하는 방법.
  8. 펠렛화된 폴리프로필렌과 결정생성제를 혼합하고, 상기 혼합물을 가소화하고, 실제적으로 가소화된 혼합물내로 물리적 발포제를 주입하여 발포 혼합물을 형성하고, 상기 발포 혼합물을 혼합 및 냉각하고, 상기 발포 혼합물을 성형된 압출물로 압출하고, 그리고 상기 발포 압출물을 연속 폼 시이트로 성형하는 단계들을 포함하는 (가)적어도 1.0×106또는 적어도 3.0의 Mzz/Mw비, 그리고, (나)적어도 12×10-5cm2/dyne의 평형 컴플라이언스 Jeo또는 1 sec-1에서 적어도 5×10-5cm2/dyne의 단위응력 당 회복가능한 전단스트레인 Sr/S으로 특징지어지는 폴리프로필렌의 폼 시이트를 제조하는 방법.
  9. 제8항에 있어서, 상기 시이트가 2.5 내지 25.0lbs/ft3의 밀도와 10,000 내지 50,000psi의 굽힘계수를 가지는 폼 시이트.
  10. 제8항에 있어서, 상기 시이트가 5내지 18mil의 범위의 세포를 갖는 폼 시이트.
  11. 제8항에 있어서, 상기 시이트가 0.020 내지 0.200inch의 두께를 가지는 폼 시이트.
  12. 제8항에 있어서, 상기 시이트가 한쪽 또는 양쪽면상에 실제적으로 비-세포상의 외부층 또는 껍질을 가지는 폼 시이트.
  13. 제8항에 있어서, 상기 물질적 발포제가 탄화수소, 염소화된 탄화수소, 클로로플루오로카본, 질소, 이산화탄소 및 다른 불활성기체들로 이루어진 그룹으로부터 선택되는 방법.
  14. 제13항에 있어서, 상기 물질적 발포제농도가 25중량％이하인 방법.
  15. 제8항에 있어서, 상기 결정생성제가 시트르산-중탄산나트륨 혼합물, 활석 및 이산화티타늄으로 이루어진 그룹으로부터 선택되는 방법.
  16. 제15항에 있어서, 상기 결정생성제가 0.3 내지 5.0미크론의 입자크기와 1중량％이하의 농도를 가지는 방법.
  17. 압력 또는 진공하에서 변형될 수 있는 온도까지 폼 시이트를 가열하고, 상기 연화된 폼 시이트를 성형몰드의 몰드표면에 대해 성형시키고, 상기 폼 시이트를 냉각하여 상기 성형몰드의 형태를 가지는 강성 또는 반-강성의 제품을 형성하고, 그리고 상기 강성 또는 반-강성의 성형된 제품으로부터 어떠한 과량의 물질도 잘라내는 단계들을 포함하는, 제1항의 폼 시이트를 활용하는 강성 또는 반-강성의 제품을 성형하는 방법.
  18. 제17항에 있어서, 상기 성형몰드가 트레이, 플레이트, 컵, 보울 및 접시 형태로 이루어지는 그룹으로부터 선택된 배치를 가지는 방법.
  19. 적어도 하나의 폴리프로필렌 폼 시이트의 층과 적어도 하나의 기능성 중합체층을 포함하는, 포장용의 강성 또는 반-강성의 제품을 성형하는데 유용한 다중층이진 폼 시이트.
  20. 제19항에 있어서, 상기 기능층 및 폼층들 사이에 끼워넣어지는 결합층을 더욱 포함하는 다중층이진 폼 시이트.
  21. 제19항에 있어서, 상기 시이트가 실제적으로 비-세포상의 외부층 또는 껍질을 포함하는 다중층이진 폼 시이트.
  22. 제19항에 있어서, 적어도 하나의 기능층이 에틸렌-비닐알코올과 비닐리덴클로라이드 공중합체 및 폴리아미드로부터 선택되는 다중층이진 폼 시이트.
  23. 펠렛화된 폴리프로필렌과 결정생성제를 혼합하고, 상기 혼합물을 가소화하고, 실제적으로 가소화된 혼합물내로 물리적 발포제를 주입하여 발포 혼합물을 형성하고, 상기 발포 혼합물을 혼합 및 냉각하고, 가능성 수지를 가소화하고, 상기 발포 혼합물 및 상기 가소화된 기능성 수지를 압출기의 결합 피이드블록 또는 다중-가공된 다이에 공급하고, 그리고 상기 발포 혼합물과 가소화된 기능성 수지를 연속의 다중층이진 폼시이트를 공-압출하는 단계들을 포함하는 다중층이진 폴리프로필렌 폼 시이트를 제조하는 방법.
  24. 펠렛화된 폴리프로필렌과 결정생성제를 혼합하고, 상기 혼합물을 가소화하고, 실제적으로 가소화된 혼합물내로 물리적 발포제를 주입하여 발포 혼합물을 형성하고, 상기 발포 혼합물을 혼합 및 냉각하고, 가능성 수지를 가소화하고, 상기 발포 혼합물 및 상기 가소화된 가능성 수지를 압출기의 결합 피이드블록 또는 다중-가공된 다이에 공급하고, 그리고 상기 발포 혼합물과 가소화된 가능성 수지를 여속의 다중층이진 폼 시이트로 공-압출하는 단계들을 포함하는 (가) 적어도 1.0×106또는 적어도 3.0의 Mzz/Mw비, 그리고, (나)적어도 12×10-5cm2/dyne의 평형 컴플라이언스 Jeo또는 1 sec-1에서 적어도 5×10-5cm2/dyne의 단위응력 당 회복가능한 전단스트레인 Sr/S으로 특징지어지는 폴리프로필렌의 다중층이진 폼 시이틀를 제조하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920702195A 1990-03-14 1991-03-13 폴리프로필렌 폼 시이트 KR960003278B1 (ko)

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US493,541 1990-03-14
US07/493,541 US5116881A (en) 1990-03-14 1990-03-14 Polypropylene foam sheets
PCT/US1991/001678 WO1991013933A1 (en) 1990-03-14 1991-03-13 Polypropylene foam sheets

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JPH07266413A (ja) 1995-10-17
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WO1991013933A1 (en) 1991-09-19
CA2078123A1 (en) 1991-09-15
US5116881A (en) 1992-05-26
US5180751A (en) 1993-01-19
KR960003278B1 (ko) 1996-03-08
US5180751B1 (en) 1999-09-28
ES2072606T3 (es) 1995-07-16
US5149579B1 (en) 1999-08-24
JPH05506875A (ja) 1993-10-07
ATE122701T1 (de) 1995-06-15
DE69109860T2 (de) 1995-10-26
TW212807B (ko) 1993-09-11
JP2521388B2 (ja) 1996-08-07
JP2638532B2 (ja) 1997-08-06
DE69109860D1 (de) 1995-06-22
EP0520028A1 (en) 1992-12-30
US5149579A (en) 1992-09-22

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