ES271384A1 - Procedimiento para la producciën de articulos expandidos o espumados en un molde - Google Patents

Procedimiento para la producciën de articulos expandidos o espumados en un molde

Info

Publication number
ES271384A1
ES271384A1 ES0271384A ES271384A ES271384A1 ES 271384 A1 ES271384 A1 ES 271384A1 ES 0271384 A ES0271384 A ES 0271384A ES 271384 A ES271384 A ES 271384A ES 271384 A1 ES271384 A1 ES 271384A1
Authority
ES
Spain
Prior art keywords
polymer composition
mould
heating
copolymers
styrene
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
ES0271384A
Other languages
English (en)
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of ES271384A1 publication Critical patent/ES271384A1/es
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
    • B29C44/34—Auxiliary operations
    • B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid
    • 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
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • C08J9/232—Forming foamed products by sintering expandable particles
    • 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
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • 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
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/13—Cell size and distribution control while molding a foam
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/119—Perforated or porous
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/812—Venting

Abstract

Un procedimiento para la producción de artículos expandidos o espumados en un molde haciendo pasar un medio de caldeo líquido, gaseoso, o en forma fe vapor, a través de una masa de polímero termoplástico sólido en forma de partículas que es capaz de espumar o de dilatarse por la acción del calor en virtud de un contenido de agente dilatador orgánico volátil que no es disolvente para el polímero, caracterizado porque la masa de partículas se precalienta , antes de la operación de caldeo final y de espumación o expansión, a una temperatura que es menor que aquella a la cual la composición polímera se ablanda o a la cual las partículas individuales fluyen juntas o se adhieren entre si.
ES0271384A 1960-10-31 1961-10-20 Procedimiento para la producciën de articulos expandidos o espumados en un molde Expired ES271384A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65973A US3015851A (en) 1960-10-31 1960-10-31 Process for making shaped cellular articles from foamable thermoplastic alkenyl aromatic resins

Publications (1)

Publication Number Publication Date
ES271384A1 true ES271384A1 (es) 1962-04-16

Family

ID=22066416

Family Applications (2)

Application Number Title Priority Date Filing Date
ES0271384A Expired ES271384A1 (es) 1960-10-31 1961-10-20 Procedimiento para la producciën de articulos expandidos o espumados en un molde
ES0274677A Expired ES274677A1 (es) 1960-10-31 1962-02-16 Un aparato para la produccion de articulos expandidos o espumados

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES0274677A Expired ES274677A1 (es) 1960-10-31 1962-02-16 Un aparato para la produccion de articulos expandidos o espumados

Country Status (6)

Country Link
US (1) US3015851A (es)
BE (1) BE609425A (es)
DE (1) DE1504131A1 (es)
ES (2) ES271384A1 (es)
GB (1) GB945073A (es)
NL (2) NL270773A (es)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158898A (en) * 1961-03-13 1964-12-01 Dow Chemical Co Apparatus for molding plastic containers
US3159694A (en) * 1962-08-01 1964-12-01 Dow Chemical Co Continuous molding process
BE637848A (es) * 1962-09-25
US3338997A (en) * 1963-03-14 1967-08-29 Dow Chemical Co Method and apparatus for forming plastic containers
US3244346A (en) * 1963-06-26 1966-04-05 Continental Can Co Cold-working polystyrene foam container to enhance cushioning
US3278658A (en) * 1963-12-05 1966-10-11 Koppers Co Inc Process and apparatus for making shaped cellular articles from expandable thermoplastic resins
US3261055A (en) * 1964-01-20 1966-07-19 Dart Mfg Company Apparatus for forming plastic articles
US3274643A (en) * 1964-07-20 1966-09-27 Dyfoam Corp Apparatus for determining the expansive pressure of molded polystyrene beads
US3298656A (en) * 1964-10-02 1967-01-17 Remmele Engineering Inc Foam insulation forming fixture
US3331899A (en) * 1964-11-30 1967-07-18 Koppers Co Inc Process and apparatus for making shaped cellular articles from expandable thermoplastic resins
US3312760A (en) * 1965-10-22 1967-04-04 Wmb Internat Ab Method for the production of slabs of foamed thermoplastic material
CA935965A (en) * 1970-01-21 1973-10-30 Sekisui Kaseihin Kogyo Kabushiki Kaisha Mold for preparing a shaped article made of foamed thermoplastic resin and method for preparation therefor
US3890414A (en) * 1971-02-22 1975-06-17 Michael Anthony Ricciardi Rapid cooling process for improving quality of polyurethane foam
US3878279A (en) * 1973-01-11 1975-04-15 Frank D Sorrells System for the manufacture of foamed reproductions of articles
US3992238A (en) * 1975-03-31 1976-11-16 Medical Specialties, Inc. Method for molding a protective pad
US4272469A (en) * 1979-02-26 1981-06-09 Integrated Insulation Systems, Inc. Method and apparatus for forming expanded foam articles
JPS5692931A (en) * 1979-12-26 1981-07-28 Kanegafuchi Chem Ind Co Ltd Foamed molded article of heat-resistant synthetic resin
IT1144439B (it) * 1981-07-27 1986-10-29 Lavorazione Mat Plast Procedimento per la produzione di pannelli di polistirolo espanso o simile materiale dispositivo per l esecuzione del procedimento e prodotto ottenuto
US4557881A (en) * 1982-11-26 1985-12-10 Design Engineering Service, Inc. Method for manufacturing foam boards
US5000891A (en) * 1986-09-29 1991-03-19 Green James R Expandable polystyrene pellets
US4816199A (en) * 1986-11-04 1989-03-28 Ford Motor Company Method of dimensionally stabilizing polystyrene patterns and the like
US4801361A (en) * 1987-04-03 1989-01-31 Bullard Calvin P Method and apparatus for molding expandable polystyrene foam articles
US5188792A (en) * 1992-02-10 1993-02-23 Trinity American Corp. Post treatment of polyurethane foam
US8677600B2 (en) * 2009-11-19 2014-03-25 General Foam Plastics Corporation Methods of dispensing and making porous material with growth enhancing element
NL2008466C2 (en) * 2012-03-12 2013-09-16 Paperfoam B V A method and apparatus for manufacturing sustainable products with a blown, foam structure.
KR101704262B1 (ko) * 2015-09-15 2017-02-07 현대자동차주식회사 밀도 조절이 가능한 성형물의 제조 방법 및 그 제조 방법으로 제조되는 성형물
DE102016100690A1 (de) 2016-01-18 2017-07-20 Kurtz Gmbh Verfahren und Vorrichtung zur Herstellung eines Partikelschaumstoffteils

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907072A (en) * 1955-09-26 1959-10-06 Electrolux Ab Method of forming foamed plastic objects
US2948926A (en) * 1957-11-08 1960-08-16 C I C O M I Cie Internationale Mold for and a method of producing large bodies of foamed polystyrene

Also Published As

Publication number Publication date
DE1504131A1 (de) 1969-02-06
NL124754C (es)
US3015851A (en) 1962-01-09
NL270773A (es)
BE609425A (fr) 1962-04-20
GB945073A (en) 1963-12-18
ES274677A1 (es) 1962-04-16

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