CA1130968A - Method and apparatus for forming expanded foam articles - Google Patents

Method and apparatus for forming expanded foam articles

Info

Publication number
CA1130968A
CA1130968A CA349,273A CA349273A CA1130968A CA 1130968 A CA1130968 A CA 1130968A CA 349273 A CA349273 A CA 349273A CA 1130968 A CA1130968 A CA 1130968A
Authority
CA
Canada
Prior art keywords
beads
blowing agent
chamber
expanded
mold cavity
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.)
Expired
Application number
CA349,273A
Other languages
English (en)
French (fr)
Inventor
Stuart B. Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cellofoam AG
Original Assignee
Cellofoam AG
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 US06/059,392 external-priority patent/US4272469A/en
Application filed by Cellofoam AG filed Critical Cellofoam AG
Application granted granted Critical
Publication of CA1130968A publication Critical patent/CA1130968A/en
Expired legal-status Critical Current

Links

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
    • 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
    • B29C44/3461—Making or treating expandable particles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Molding Of Porous Articles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
CA349,273A 1979-07-20 1980-04-08 Method and apparatus for forming expanded foam articles Expired CA1130968A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/059,392 US4272469A (en) 1979-02-26 1979-07-20 Method and apparatus for forming expanded foam articles
US059,392 1987-06-08

Publications (1)

Publication Number Publication Date
CA1130968A true CA1130968A (en) 1982-09-07

Family

ID=22022653

Family Applications (1)

Application Number Title Priority Date Filing Date
CA349,273A Expired CA1130968A (en) 1979-07-20 1980-04-08 Method and apparatus for forming expanded foam articles

Country Status (21)

Country Link
JP (1) JPS5617231A (xx)
KR (1) KR840000070B1 (xx)
AU (1) AU536212B2 (xx)
BE (1) BE884378A (xx)
BR (1) BR8000985A (xx)
CA (1) CA1130968A (xx)
DE (1) DE3011519A1 (xx)
DK (1) DK219480A (xx)
ES (1) ES8102890A1 (xx)
FI (1) FI801390A (xx)
FR (1) FR2461732A1 (xx)
GB (1) GB2055380B (xx)
IE (1) IE800185L (xx)
IL (1) IL59308A0 (xx)
IT (1) IT1132060B (xx)
LU (1) LU82398A1 (xx)
NL (1) NL8004094A (xx)
NO (1) NO800518L (xx)
PT (1) PT70841A (xx)
SE (1) SE8001031L (xx)
ZA (1) ZA80451B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592821A (ja) * 1982-06-30 1984-01-09 Badische Yuka Co Ltd 発泡性熱可塑性樹脂の予備発泡粒子を用いる成形体の製造方法
JPS60105503A (ja) * 1983-11-12 1985-06-11 Kanegafuchi Chem Ind Co Ltd 熱可塑性樹脂粒子の予備発泡法およびその装置
EP0140059B1 (en) * 1983-09-08 1988-06-08 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Pre-expanding process and apparatus for the same
JPS63135436A (ja) * 1986-11-26 1988-06-07 Mitsubishi Yuka Badische Co Ltd 予備発泡スチレン系樹脂粒子の製造方法
JPH0739503B2 (ja) * 1987-12-11 1995-05-01 鐘淵化学工業株式会社 ポリプロピレン系樹脂予備発泡粒子及びその製造方法
DE68913235T2 (de) * 1988-06-23 1994-07-14 Casco Nobel Ab Verfahren und Vorrichtung zur Herstellung expandierbarer thermoplastischer Mikrokugeln.
JP5511465B2 (ja) * 2010-03-26 2014-06-04 積水化成品工業株式会社 発泡性熱可塑性樹脂粒子の予備発泡方法
ES2495640B1 (es) * 2013-03-14 2015-07-07 Doroteo Olmedo, S.L. Molde con cámara incorporada para la fabricación de piezas de espuma plástica
CN109676849B (zh) * 2018-12-24 2024-01-09 菲尔普(青岛)新材料有限公司 一种塑料泡沫板材成型连续化生产线

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086248A (en) * 1959-12-07 1963-04-23 Armstrong Cork Co Process for reducing aging period of cellular products formed with steam
US3257103A (en) * 1962-07-06 1966-06-21 Frederick B Brockhues Apparatus for processing expandable plastic material
US3236927A (en) * 1962-09-25 1966-02-22 Thompson Ind Co Inc Method of molding foamable plastic materials
US3278658A (en) * 1963-12-05 1966-10-11 Koppers Co Inc Process and apparatus for making shaped cellular articles from expandable thermoplastic resins
US3235908A (en) * 1965-06-24 1966-02-22 Rexall Drug Chemical Molding apparatus
US4032609A (en) * 1972-09-11 1977-06-28 Foster Grant Co., Inc. Method for pre-expanding and molding expandable thermoplastic polymer particles

Also Published As

Publication number Publication date
JPS5617231A (en) 1981-02-19
SE8001031L (sv) 1981-01-21
IT1132060B (it) 1986-06-25
AU5532880A (en) 1981-01-22
IT8022342A0 (it) 1980-05-27
KR830001991A (ko) 1983-05-21
GB2055380A (en) 1981-03-04
IE800185L (en) 1981-01-20
BR8000985A (pt) 1981-03-31
NO800518L (no) 1981-01-21
AU536212B2 (en) 1984-04-19
GB2055380B (en) 1983-09-21
IL59308A0 (en) 1980-05-30
DK219480A (da) 1981-01-21
FR2461732A1 (fr) 1981-02-06
FI801390A (fi) 1981-01-21
LU82398A1 (fr) 1980-07-31
KR840000070B1 (ko) 1984-02-08
ZA80451B (en) 1981-01-28
DE3011519A1 (de) 1981-01-22
ES490656A0 (es) 1981-02-16
ES8102890A1 (es) 1981-02-16
NL8004094A (nl) 1981-01-22
BE884378A (fr) 1981-01-19
PT70841A (en) 1980-03-01

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Legal Events

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