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KR970005577A - 폴리우레탄 발포 성형품의 제조 방법 - Google Patents

폴리우레탄 발포 성형품의 제조 방법 Download PDF

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Publication number
KR970005577A
KR970005577A KR1019960028362A KR19960028362A KR970005577A KR 970005577 A KR970005577 A KR 970005577A KR 1019960028362 A KR1019960028362 A KR 1019960028362A KR 19960028362 A KR19960028362 A KR 19960028362A KR 970005577 A KR970005577 A KR 970005577A
Authority
KR
South Korea
Prior art keywords
mold cavity
reactive
mixture
pressure
mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
KR1019960028362A
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English (en)
Inventor
슐츠바흐 한스-미하엘
Original Assignee
칼 에프. 프로스
마쉬넨파브릭 헨네케 게엠베하
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1995125663 external-priority patent/DE19525663C1/de
Application filed by 칼 에프. 프로스, 마쉬넨파브릭 헨네케 게엠베하 filed Critical 칼 에프. 프로스
Publication of KR970005577A publication Critical patent/KR970005577A/ko
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/587—Moulds with a membrane, e.g. for pressure control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/63—Venting or degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/381—Spreading the foamable material in the mould by pressing the mould halves together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/005—Using a particular environment, e.g. sterile fluids other than air

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

본 발명은 가압하에 물리적으로 용해되는 이산화탄소가 발포제로서 사용되고 폴리우레탄 반응성 혼합물이 도입되는 동안 주형 캐비티 내의 압력이 유지되어 용해된 이산화탄소가 완전히 방출되는 것을 방치하는 폴리우레탄 발포 성형품의 제조 방법에 관한 것이다.

Description

폴리우레탄 발포 성형품의 제조 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1, 2도 및 3은 본 발명의 여러 실시양태를 나타내는 도면

Claims (7)

  1. 발포제를 함유하는 폴리우레탄 방응성 혼합물을 주형 캐비티내로 도입하고, 방응성 혼합물을 발포시키며, 경화시키고 주형 캐비티로부터 성형품을 제거하므로써 폴리우레탄 발포 성형품을 제조하는 방법에 있어서, a) 폴리우레탄 반응성 혼합물내에 발포제로서 이산화탄소를 가압하에 용해시키고, b) 반응성 혼합물을 밀폐식 주형 캐비티내에 도입하며, c) 반응성 혼합물을 도입하는 동안에 주형 캐비티내의 가스 압력을 반응성 혼합물이 안전히 발포되는 것을 방지하는 압력으로 유지시키고, d) 발포된 반응 혼합물이 주형 캐비티 전체를 채울 때까지(임의로는 추가로)반응성 혼합물을 발포시키면서 주형 캐비티내의 가스 압력을 감소시키는 것을 개선점으로 하는 폴리우레탄 발포 성형품의 제조 방법.
  2. 제1항에 있어서, 주형 캐비티가 주형 분할면내의 가용성 막에 의해 제1부분 및 제2부분으로 분할되고, 가스 압력이 주형 캐비티의 제1부분에 가해져 막이 주형 캐비티의 제2부분의 단면형에 걸쳐 위치되며, 반응성 혼합물이 주형 캐비티의 제2부분내로 도입되고, 막이 반응성 홈합물의 발포로 인해 주형 캐비티의 제1부분의 단면형에 걸쳐 위치될 때까지 주형 캐비티의 제1부분내의 가스 압력이 감소되는 방법.
  3. 제1항에 있어서, 반응성 홈합물이 용해된 CO20.5 내지 7중량%를 함유하는 방법.
  4. 제1항에 있어서, 충전 과정 동안에 주형의 내압이 반응성 혼합물내에 처음에 용해 되는 이산화탄소의 포화 중기압의 50% 이상인 방법.
  5. 제1항에 있어서, 반응성 홈합물이 용해된 CO2의 방출을 위해 기포핵으로서 미분된 공기 기포를 함유하는 방법.
  6. 제1항에 있어서, 주형 캐비티가 반응성 홈합물에 대해 유입 오리피스의 반대쪽에 위치하고 유입 오리피스를 향해 이동가능한 1개 이상의 단면형 부재를 가지고, 상기 단면형 부재가 반응성 홈합물이 도입되는 동안에 유입 오리피스를 향해 이동하여 주향 캐비티내의 반응성 홈합물이 급속히 횡방향으로 분포되도록 하는 방법.
  7. 제1항에 있어서, 반응성 혼합물이 고압 향류 사출 혼합 헤드로 생성되고, 상기 혼합 헤드내로 공급되는 성분들 중 1종 이상이 가압하에 용해된 CO2를 함유하는 방법.
KR1019960028362A 1995-07-14 1996-07-13 폴리우레탄 발포 성형품의 제조 방법 Ceased KR970005577A (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE1995125663 DE19525663C1 (de) 1995-07-14 1995-07-14 Verfahren zur Herstellung von Polyurethanschaumformkörpern
DE19525663.8 1995-11-29
DE19544456 1995-11-29
DE19544456.6 1995-11-29

Publications (1)

Publication Number Publication Date
KR970005577A true KR970005577A (ko) 1997-02-19

Family

ID=26016814

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960028362A Ceased KR970005577A (ko) 1995-07-14 1996-07-13 폴리우레탄 발포 성형품의 제조 방법

Country Status (5)

Country Link
US (1) US5834527A (ko)
EP (1) EP0753389B1 (ko)
JP (1) JPH0929759A (ko)
KR (1) KR970005577A (ko)
DE (1) DE59607975D1 (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19654075A1 (de) * 1996-12-23 1998-06-25 Bayer Ag Verfahren zur Herstellung von mit grobkörnigem Füllmaterial hochgefüllten Reaktivkunststoff-Formkörpern
US5801210A (en) * 1997-10-29 1998-09-01 Bayer Corporation Method and apparatus for the production of essentially void free foams
DE19938140A1 (de) * 1999-08-16 2001-03-08 Fehrer F S Gmbh & Co Kg Verfahren und Form zur Herstellung eines Formteiles aus einem schäumbaren polymeren Material
WO2003064492A1 (en) * 2002-01-29 2003-08-07 Huntsman International Llc Process for making rigid polyurethane foams
US6562880B1 (en) * 2002-04-17 2003-05-13 Bayer Corporation Polyurethane or polyisocyanurate foams blown with hydrofluorocarbons and carbon atoms
EP1393876A1 (de) * 2002-08-26 2004-03-03 Alcan Technology & Management Ltd. Verfahren zur Herstellung eines Schaumstoffkörpers aus einem thermoplastischen Kunststoff
JP4154654B2 (ja) * 2002-09-13 2008-09-24 アキレス株式会社 硬質ポリウレタンフォームの製造方法
JP4541298B2 (ja) * 2002-11-11 2010-09-08 サンスター技研株式会社 発泡成形方法及びその装置
DE10258546B4 (de) * 2002-12-14 2005-03-10 Stankiewicz Gmbh Verfahren und Vorrichtung zur Herstellung geschäumter Polyurethan-Formkörper
US7338983B2 (en) * 2004-02-10 2008-03-04 World Properties, Inc. Low density polyurethane foam, method of producing, and articles comprising the same
JP4378624B2 (ja) * 2004-02-10 2009-12-09 株式会社イノアックコーポレーション シール部材の製造方法
FR2986734B1 (fr) * 2012-02-10 2014-03-07 Faurecia Interieur Ind Procede de realisation d'un element de garnissage comprenant une couche de mousse de masse reduite
DE102012023608B4 (de) * 2012-12-04 2015-03-12 Hennecke Gmbh Verfahren und Vorrichtung zum Herstellen eines Formteils
KR20170035915A (ko) * 2014-07-25 2017-03-31 더 플로리다 스테이트 유니버시티 리서치 파운데이션, 인크 팽창성 폼을 제조하기 위한 재료 시스템 및 방법
GB201519505D0 (en) * 2015-11-04 2015-12-16 Design Blue Ltd Method of forming foamed polymeric articles

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
GB904003A (en) * 1958-02-06 1962-08-22 Dunlop Rubber Co Method and apparatus for the production of cellular synthetic rubber
US3666848A (en) * 1969-11-24 1972-05-30 Robert C Harper Method of producing closed mold polyurethane foam moldings free of surface voids by flushing the mold with a vaporized halogenated hydrocarbon
US4337318A (en) * 1980-09-30 1982-06-29 Doyle Earl N Process for the total pre-expansion of polyurethane foam
GB8329628D0 (en) * 1983-11-05 1983-12-07 Rubber & Plastic Res Ass Polyurethanes
US4783292A (en) * 1987-06-15 1988-11-08 Rogers Roy K Method of injection molding a foamed plastic article using a relatively light gas as a blowing agent
EP0377650A1 (en) * 1987-07-29 1990-07-18 Massachusetts Institute Of Technology A method of producing microcellular foams and microcellular foams of semi-crystalline polymeric materials
US4851167A (en) * 1987-09-14 1989-07-25 Clint, Inc. Molding process and apparatus

Also Published As

Publication number Publication date
EP0753389B1 (de) 2001-10-24
EP0753389A2 (de) 1997-01-15
DE59607975D1 (de) 2001-11-29
EP0753389A3 (de) 1997-12-03
US5834527A (en) 1998-11-10
JPH0929759A (ja) 1997-02-04

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