ATE213259T1 - Geschäumte spritzguss-materialien - Google Patents

Geschäumte spritzguss-materialien

Info

Publication number
ATE213259T1
ATE213259T1 AT92911661T AT92911661T ATE213259T1 AT E213259 T1 ATE213259 T1 AT E213259T1 AT 92911661 T AT92911661 T AT 92911661T AT 92911661 T AT92911661 T AT 92911661T AT E213259 T1 ATE213259 T1 AT E213259T1
Authority
AT
Austria
Prior art keywords
barrel
injection molding
polymer
molding materials
melt
Prior art date
Application number
AT92911661T
Other languages
English (en)
Inventor
Sung W Cha
Nam P Suh
Daniel F Baldwin
Chul B Park
Original Assignee
Massachusetts Inst Technology
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24738277&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE213259(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Massachusetts Inst Technology filed Critical Massachusetts Inst Technology
Application granted granted Critical
Publication of ATE213259T1 publication Critical patent/ATE213259T1/de

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
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
    • 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
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/03—Extrusion of the foamable blend
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/08—Supercritical fluid
    • 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
    • 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
    • Y10S264/13—Cell size and distribution control while molding a foam

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)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
AT92911661T 1991-04-05 1992-04-03 Geschäumte spritzguss-materialien ATE213259T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/682,116 US5158986A (en) 1991-04-05 1991-04-05 Microcellular thermoplastic foamed with supercritical fluid
PCT/US1992/002690 WO1992017533A1 (en) 1991-04-05 1992-04-03 Supermicrocellular foamed materials

Publications (1)

Publication Number Publication Date
ATE213259T1 true ATE213259T1 (de) 2002-02-15

Family

ID=24738277

Family Applications (2)

Application Number Title Priority Date Filing Date
AT92911661T ATE213259T1 (de) 1991-04-05 1992-04-03 Geschäumte spritzguss-materialien
AT99121925T ATE305488T1 (de) 1991-04-05 1992-04-03 Supermikrozellulöse geschäumte materialien

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT99121925T ATE305488T1 (de) 1991-04-05 1992-04-03 Supermikrozellulöse geschäumte materialien

Country Status (8)

Country Link
US (3) US5158986A (de)
EP (2) EP0985511B1 (de)
JP (1) JP2625576B2 (de)
KR (1) KR0171911B1 (de)
AT (2) ATE213259T1 (de)
CA (1) CA2107355C (de)
DE (2) DE69232415T2 (de)
WO (1) WO1992017533A1 (de)

Families Citing this family (369)

* Cited by examiner, † Cited by third party
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US5334356A (en) 1994-08-02
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CA2107355C (en) 1999-07-20
CA2107355A1 (en) 1992-10-06
JPH06506724A (ja) 1994-07-28
WO1992017533A1 (en) 1992-10-15
EP0985511A2 (de) 2000-03-15
JP2625576B2 (ja) 1997-07-02
USRE37932E1 (en) 2002-12-10
US5158986A (en) 1992-10-27
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DE69232415T2 (de) 2002-09-26
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