IT958031B - Metodo per estrudere una schiuma poliolefinica a celle chiuse - Google Patents

Metodo per estrudere una schiuma poliolefinica a celle chiuse

Info

Publication number
IT958031B
IT958031B IT50449/72A IT5044972A IT958031B IT 958031 B IT958031 B IT 958031B IT 50449/72 A IT50449/72 A IT 50449/72A IT 5044972 A IT5044972 A IT 5044972A IT 958031 B IT958031 B IT 958031B
Authority
IT
Italy
Prior art keywords
extruding
closed cell
polyolefin foam
cell polyolefin
foam
Prior art date
Application number
IT50449/72A
Other languages
English (en)
Original Assignee
Polytech Systems
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 Polytech Systems filed Critical Polytech Systems
Application granted granted Critical
Publication of IT958031B publication Critical patent/IT958031B/it

Links

Classifications

    • 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
    • C08J9/14—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 organic
    • C08J9/143—Halogen containing compounds
    • 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
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • 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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/046—Condition, form or state of moulded material or of the material to be shaped cellular or porous with closed cells
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/008—Additives improving gas barrier properties
    • 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
    • Y10S264/05—Use of one or more blowing agents together

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Emergency Medicine (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
IT50449/72A 1971-06-29 1972-05-24 Metodo per estrudere una schiuma poliolefinica a celle chiuse IT958031B (it)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19712132295 DE2132295A1 (de) 1971-06-29 1971-06-29 Verfahren zur herstellung von schaumstoffen
FR7124542A FR2144983A5 (en) 1971-06-29 1971-07-05 Polyolefin foam mfr - from compsns contg gas barrier materials, seed particles and two blowing agents
US00182268A US3810964A (en) 1970-05-20 1971-09-20 Process for extruding a foamed closed-cell polyolefin extrudate substantially free from cell collapse by use of a barrier material

Publications (1)

Publication Number Publication Date
IT958031B true IT958031B (it) 1973-10-20

Family

ID=42060677

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50449/72A IT958031B (it) 1971-06-29 1972-05-24 Metodo per estrudere una schiuma poliolefinica a celle chiuse

Country Status (5)

Country Link
US (1) US3810964A (it)
DE (1) DE2132295A1 (it)
FR (1) FR2144983A5 (it)
IT (1) IT958031B (it)
LU (1) LU65440A1 (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939237A (en) * 1971-11-19 1976-02-17 Asahi Dow, Ltd. Method of making a fluid transmitting porous tube or sheet
US4020025A (en) * 1973-05-08 1977-04-26 Basf Aktiengesellschaft Extrudable foamable composition comprising an olefin polymer, a styrene polymer and a hydrogenated styrene butadiene block copolymer
US4196267A (en) * 1975-03-25 1980-04-01 Asahi-Dow Limited Extrusion foamed article and process for producing the same
CA1058716A (en) * 1975-06-05 1979-07-17 Steve A. Fox Coaxial cable with improved properties and process of making same
US4110269A (en) * 1977-01-31 1978-08-29 Olefoam Corporation Method of making polyethylene foam
US4171411A (en) * 1977-01-31 1979-10-16 Tuxis Corporation Insulative and cushioning interliner for garments and the like
US4214054A (en) 1977-10-21 1980-07-22 Asahi-Dow Limited Expanded olefin polymer
GB1597476A (en) * 1977-10-31 1981-09-09 Hoechst Holland Nv Closed cell foamed plastic film
DE2904082A1 (de) * 1979-02-03 1980-08-07 Ruhrchemie Ag Verfahren zur herstellung von polymerisatschaeumen
US4215202A (en) * 1979-02-22 1980-07-29 The Dow Chemical Company Soft ethylenic polymer blend foams
US4229396A (en) * 1979-03-21 1980-10-21 The Dow Chemical Company Method of extruding thermoplastic resin foams having enlarged cell-sizes
DE2965605D1 (en) * 1979-05-16 1983-07-14 Dow Chemical Co Process for continuously manufacturing polyolefin resin foam
US4307204A (en) * 1979-07-26 1981-12-22 E. I. Du Pont De Nemours And Company Elastomeric sponge
US5059376A (en) * 1989-04-20 1991-10-22 Astro-Valcour, Incorporated Methods for rapid purging of blowing agents from foamed polymer products
JPH05505634A (ja) * 1990-03-23 1993-08-19 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー ガスバリアー樹脂を含むポリマーフォーム
US5290822A (en) * 1992-08-27 1994-03-01 Astro-Valcour, Inc. Ultra low density polyolefin foam, foamable polyolefin compositions and process for making same
DE69317828T2 (de) * 1992-08-27 1998-11-12 Astro Valcour Inc Polyolefinschaum mit geringer Dichte, aufschäumende Polyolefinzusammensetzungen und Herstellungsverfahren
US20180001522A1 (en) 2016-05-31 2018-01-04 Innovative Designs, Inc. Process for forming closed cell expanded low density polyethylene foam and products formed thereby

Also Published As

Publication number Publication date
US3810964A (en) 1974-05-14
DE2132295A1 (de) 1973-01-11
LU65440A1 (it) 1972-08-24
FR2144983A5 (en) 1973-02-16

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