IT1138636B - Procedimento perfezionato per l'ottenimento di manufatti espansi in materiale termoplastico e manufatto ottenuto con tale procedimento - Google Patents

Procedimento perfezionato per l'ottenimento di manufatti espansi in materiale termoplastico e manufatto ottenuto con tale procedimento

Info

Publication number
IT1138636B
IT1138636B IT24159/81A IT2415981A IT1138636B IT 1138636 B IT1138636 B IT 1138636B IT 24159/81 A IT24159/81 A IT 24159/81A IT 2415981 A IT2415981 A IT 2415981A IT 1138636 B IT1138636 B IT 1138636B
Authority
IT
Italy
Prior art keywords
manufactures
procedure
thermoplastic material
obtaining expanded
manufacture obtained
Prior art date
Application number
IT24159/81A
Other languages
English (en)
Other versions
IT8124159A0 (it
Inventor
Giuseppe Ponzielli
Original Assignee
Giuseppe Ponzielli
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 Giuseppe Ponzielli filed Critical Giuseppe Ponzielli
Priority to IT24159/81A priority Critical patent/IT1138636B/it
Publication of IT8124159A0 publication Critical patent/IT8124159A0/it
Priority to US06/410,952 priority patent/US4435523A/en
Application granted granted Critical
Publication of IT1138636B publication Critical patent/IT1138636B/it

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
    • B29C44/02—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
    • B29C44/105—Applying counter-pressure during expanding the counterpressure being exerted by a fluid
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • 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
    • Y10S264/83—Injection molding of polyolefin-type foam

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
IT24159/81A 1981-09-25 1981-09-25 Procedimento perfezionato per l'ottenimento di manufatti espansi in materiale termoplastico e manufatto ottenuto con tale procedimento IT1138636B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT24159/81A IT1138636B (it) 1981-09-25 1981-09-25 Procedimento perfezionato per l'ottenimento di manufatti espansi in materiale termoplastico e manufatto ottenuto con tale procedimento
US06/410,952 US4435523A (en) 1981-09-25 1982-08-24 Process for manufacturing articles of foamed thermoplastic material and article produced thereby

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT24159/81A IT1138636B (it) 1981-09-25 1981-09-25 Procedimento perfezionato per l'ottenimento di manufatti espansi in materiale termoplastico e manufatto ottenuto con tale procedimento

Publications (2)

Publication Number Publication Date
IT8124159A0 IT8124159A0 (it) 1981-09-25
IT1138636B true IT1138636B (it) 1986-09-17

Family

ID=11212291

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24159/81A IT1138636B (it) 1981-09-25 1981-09-25 Procedimento perfezionato per l'ottenimento di manufatti espansi in materiale termoplastico e manufatto ottenuto con tale procedimento

Country Status (2)

Country Link
US (1) US4435523A (it)
IT (1) IT1138636B (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0643500B2 (ja) * 1985-12-04 1994-06-08 住友精化株式会社 吸水性樹脂の造粒方法
EP0297158A1 (de) * 1987-07-01 1989-01-04 Battenfeld GmbH Verfahren zum Herstellen von Mehrschicht-Formkörpern aus thermoplastischem Kunststoffmaterial
DE3805215A1 (de) * 1988-02-19 1989-08-31 Triumph Adler Ag Verfahren zur herstellung einer kunststoffschreibwalze fuer schreib- oder aehnliche bueromaschinen
GB8912701D0 (en) * 1989-06-02 1989-07-19 Hyman Int Ltd Production of porous materials
CH681503A5 (en) * 1989-10-24 1993-04-15 Lange Int Sa Gas assisted injection moulding of ski boot with hollow sole
US5702652A (en) * 1990-05-31 1997-12-30 Crain Industries, Inc. Controlled cooling of porous materials
US5171756A (en) * 1991-07-31 1992-12-15 Crain Industries, Inc. Three stage cooling of porous materials
US5354523A (en) * 1992-07-29 1994-10-11 Shah Chandrakant C Method for dual fluid injection molding
GB9714807D0 (en) * 1997-07-15 1997-09-17 Gas Injection Ltd Improvements in or relating to gas assisted injection moulding
GB9916740D0 (en) * 1999-07-17 1999-09-15 Univ Warwick Gas injection moulding method and apparatus
CN100368175C (zh) * 2001-12-08 2008-02-13 英克罗有限公司 制造喷嘴构件的方法
CN1812846A (zh) * 2003-02-18 2006-08-02 英克罗有限公司 分配器喷嘴
JP3859620B2 (ja) * 2003-06-16 2006-12-20 小野産業株式会社 発泡樹脂成形品の製造方法
AT502381B1 (de) * 2005-11-11 2007-03-15 Engel Austria Gmbh Verfahren zur herstellung eines gegenstandes mit einer äusseren schicht aus geschäumtem kunststoff
US20080175942A1 (en) * 2007-01-22 2008-07-24 Hsieh Chi-Jin Shoe mold with blowing arrangement for injection foam molding

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129635A (en) 1973-12-28 1978-12-12 Asahi-Dow Limited Method for producing foamed moldings from synthetic resin materials
US4033710A (en) 1975-07-25 1977-07-05 Robert Hanning Apparatus for making thermoplastic articles with porous cores and less porous or nonporous skins
JPS59383B2 (ja) 1977-01-05 1984-01-06 旭化成株式会社 型物の成形法
JPS53102960A (en) 1977-02-21 1978-09-07 Asahi Chem Ind Co Ltd Injection mold
US4247515A (en) 1978-08-23 1981-01-27 Union Carbide Corporation Process for molding of plastic structural web articles

Also Published As

Publication number Publication date
IT8124159A0 (it) 1981-09-25
US4435523A (en) 1984-03-06

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