IT984285B - Procedimento per la produzione di composizioni termoplastiche cellu lari in particolare nella forma di oggetti estrusi o stampati ad iniezione e prodotto ottenuto - Google Patents

Procedimento per la produzione di composizioni termoplastiche cellu lari in particolare nella forma di oggetti estrusi o stampati ad iniezione e prodotto ottenuto

Info

Publication number
IT984285B
IT984285B IT49080/73A IT4908073A IT984285B IT 984285 B IT984285 B IT 984285B IT 49080/73 A IT49080/73 A IT 49080/73A IT 4908073 A IT4908073 A IT 4908073A IT 984285 B IT984285 B IT 984285B
Authority
IT
Italy
Prior art keywords
extruded
injection
procedure
production
obtained product
Prior art date
Application number
IT49080/73A
Other languages
English (en)
Original Assignee
Charbonnages Ste Chimique
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 Charbonnages Ste Chimique filed Critical Charbonnages Ste Chimique
Application granted granted Critical
Publication of IT984285B publication Critical patent/IT984285B/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
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
    • 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
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • 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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/125—Water, e.g. hydrated salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
IT49080/73A 1972-03-30 1973-03-27 Procedimento per la produzione di composizioni termoplastiche cellu lari in particolare nella forma di oggetti estrusi o stampati ad iniezione e prodotto ottenuto IT984285B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7211343A FR2177584B1 (it) 1972-03-30 1972-03-30

Publications (1)

Publication Number Publication Date
IT984285B true IT984285B (it) 1974-11-20

Family

ID=9096109

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49080/73A IT984285B (it) 1972-03-30 1973-03-27 Procedimento per la produzione di composizioni termoplastiche cellu lari in particolare nella forma di oggetti estrusi o stampati ad iniezione e prodotto ottenuto

Country Status (9)

Country Link
BE (1) BE797010A (it)
CH (1) CH568144A5 (it)
DE (1) DE2316114A1 (it)
ES (1) ES413141A1 (it)
FR (1) FR2177584B1 (it)
GB (1) GB1403808A (it)
IT (1) IT984285B (it)
LU (1) LU67272A1 (it)
NL (1) NL7304293A (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX173573B (es) * 1989-06-19 1994-03-16 Subsurface Technology Corp Mejoras en tubo poroso y proceso para producirlo
DE19610330A1 (de) * 1996-03-16 1997-09-18 Gefinex Jackon Gmbh Herstellung von Kunststoffschaum
US5639799A (en) * 1996-10-15 1997-06-17 Albemarle Corporation Heat stabilized flame retardant styrenic polymer foam compositions
WO2012018422A1 (en) 2010-08-03 2012-02-09 Ferro Corporation Polymer composite foams
JP2016500396A (ja) 2012-12-17 2016-01-12 エー.シュルマン, インク.A.Schulman, Inc. ポリマーフォーム
CN106317445B (zh) * 2015-06-29 2019-01-15 北京化工大学 一种负载化结晶水合物发泡剂、其制备方法及应用

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903564A (en) * 1959-12-10 1962-08-15 Dow Chemical Co Process for making foamed styrene polymers

Also Published As

Publication number Publication date
GB1403808A (en) 1975-08-28
FR2177584B1 (it) 1974-12-20
CH568144A5 (it) 1975-10-31
LU67272A1 (it) 1973-09-26
ES413141A1 (es) 1976-01-16
NL7304293A (it) 1973-10-02
DE2316114A1 (de) 1973-10-11
BE797010A (fr) 1973-09-19
FR2177584A1 (it) 1973-11-09

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