ES413141A1 - Manufacture of articles of cellular thermoplastic material - Google Patents

Manufacture of articles of cellular thermoplastic material

Info

Publication number
ES413141A1
ES413141A1 ES413141A ES413141A ES413141A1 ES 413141 A1 ES413141 A1 ES 413141A1 ES 413141 A ES413141 A ES 413141A ES 413141 A ES413141 A ES 413141A ES 413141 A1 ES413141 A1 ES 413141A1
Authority
ES
Spain
Prior art keywords
cellular thermoplastic
articles
manufacture
thermoplastic material
hydration
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
ES413141A
Other languages
Spanish (es)
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.)
Orkem SA
Original Assignee
Chimique des Charbonnages SA
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 Chimique des Charbonnages SA filed Critical Chimique des Charbonnages SA
Publication of ES413141A1 publication Critical patent/ES413141A1/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
    • 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)

Abstract

Procedure for manufacturing objects of cellular thermoplastic matter, characterized in that the matter to be expanded, at its transformation temperature, is brought into contact with a crystalline or partially crystalline, hydrated porous substance, in turn characterized in that its hydration and dehydration are reversible and do not affect the crystal lattice and because the union with the molecules of water of hydration is fragile. (Machine-translation by Google Translate, not legally binding)
ES413141A 1972-03-30 1973-03-29 Manufacture of articles of cellular thermoplastic material Expired ES413141A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES413141A1 true ES413141A1 (en) 1976-01-16

Family

ID=9096109

Family Applications (1)

Application Number Title Priority Date Filing Date
ES413141A Expired ES413141A1 (en) 1972-03-30 1973-03-29 Manufacture of articles of cellular thermoplastic material

Country Status (9)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX173573B (en) * 1989-06-19 1994-03-16 Subsurface Technology Corp IMPROVEMENTS IN POROUS TUBE AND PROCESS TO PRODUCE IT
DE19610330A1 (en) * 1996-03-16 1997-09-18 Gefinex Jackon Gmbh Plastics foam production with addition of zeolite to stabilise foam and increase fire protection
US5639799A (en) * 1996-10-15 1997-06-17 Albemarle Corporation Heat stabilized flame retardant styrenic polymer foam compositions
CN103052676B (en) 2010-08-03 2016-04-27 A·舒尔曼股份有限公司 Polymer composite foams
EP2931796A4 (en) 2012-12-17 2016-08-17 Schulman A Inc POLYMERIC FOAMS
CN106317445B (en) * 2015-06-29 2019-01-15 北京化工大学 A kind of supported crystalline hydrate foaming agent, preparation method and application

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
DE2316114A1 (en) 1973-10-11
FR2177584B1 (en) 1974-12-20
LU67272A1 (en) 1973-09-26
GB1403808A (en) 1975-08-28
BE797010A (en) 1973-09-19
FR2177584A1 (en) 1973-11-09
CH568144A5 (en) 1975-10-31
NL7304293A (en) 1973-10-02
IT984285B (en) 1974-11-20

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