DE69432771D1 - Thermoplastische Schaumstoffgegenstände und deren Herstellungsverfahren - Google Patents

Thermoplastische Schaumstoffgegenstände und deren Herstellungsverfahren

Info

Publication number
DE69432771D1
DE69432771D1 DE69432771T DE69432771T DE69432771D1 DE 69432771 D1 DE69432771 D1 DE 69432771D1 DE 69432771 T DE69432771 T DE 69432771T DE 69432771 T DE69432771 T DE 69432771T DE 69432771 D1 DE69432771 D1 DE 69432771D1
Authority
DE
Germany
Prior art keywords
manufacturing processes
thermoplastic foam
foam articles
articles
thermoplastic
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 - Fee Related
Application number
DE69432771T
Other languages
English (en)
Other versions
DE69432771T2 (de
Inventor
Craig A Perman
William A Hendrickson
Manfred E Riechert
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE69432771D1 publication Critical patent/DE69432771D1/de
Publication of DE69432771T2 publication Critical patent/DE69432771T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • B29C44/3446—Feeding the blowing agent
    • B29C44/3453—Feeding the blowing agent to solid plastic material
    • 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
    • B29C44/3469—Cell or pore nucleation
    • B29C44/348—Cell or pore nucleation by regulating the temperature and/or the pressure, e.g. suppression of foaming until the pressure is rapidly decreased
    • 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
    • C08J9/16—Making expandable particles
    • C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent

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)
DE69432771T 1993-02-11 1994-02-11 Thermoplastische Schaumstoffgegenstände und deren Herstellungsverfahren Expired - Fee Related DE69432771T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US1660293A 1993-02-11 1993-02-11
US16602 1993-02-11
US08/181,696 US5670102A (en) 1993-02-11 1994-01-25 Method of making thermoplastic foamed articles using supercritical fluid
US181696 1994-01-25

Publications (2)

Publication Number Publication Date
DE69432771D1 true DE69432771D1 (de) 2003-07-10
DE69432771T2 DE69432771T2 (de) 2004-04-08

Family

ID=26688827

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69432771T Expired - Fee Related DE69432771T2 (de) 1993-02-11 1994-02-11 Thermoplastische Schaumstoffgegenstände und deren Herstellungsverfahren

Country Status (6)

Country Link
US (1) US5670102A (de)
EP (1) EP0610953B1 (de)
JP (1) JP3544556B2 (de)
KR (1) KR940019777A (de)
CA (1) CA2115123A1 (de)
DE (1) DE69432771T2 (de)

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KR940019777A (ko) 1994-09-15
JP3544556B2 (ja) 2004-07-21
CA2115123A1 (en) 1994-08-12
US5670102A (en) 1997-09-23
DE69432771T2 (de) 2004-04-08
EP0610953A1 (de) 1994-08-17
EP0610953B1 (de) 2003-06-04

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