DE2904943A1 - Verfahren zum verdichten von offenzelligem polyurethan-schaumstoff - Google Patents

Verfahren zum verdichten von offenzelligem polyurethan-schaumstoff

Info

Publication number
DE2904943A1
DE2904943A1 DE19792904943 DE2904943A DE2904943A1 DE 2904943 A1 DE2904943 A1 DE 2904943A1 DE 19792904943 DE19792904943 DE 19792904943 DE 2904943 A DE2904943 A DE 2904943A DE 2904943 A1 DE2904943 A1 DE 2904943A1
Authority
DE
Germany
Prior art keywords
mass
temperature
foam
compression
gaseous matter
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.)
Granted
Application number
DE19792904943
Other languages
German (de)
English (en)
Other versions
DE2904943C2 (de
Inventor
Winslow Lockwood Pettingell
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.)
Foam Cutting Engineers Inc
Original Assignee
Foam Cutting Engineers Inc
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 Foam Cutting Engineers Inc filed Critical Foam Cutting Engineers Inc
Publication of DE2904943A1 publication Critical patent/DE2904943A1/de
Application granted granted Critical
Publication of DE2904943C2 publication Critical patent/DE2904943C2/de
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
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
DE19792904943 1978-02-10 1979-02-09 Verfahren zum Verdichten von offenzelligem Polyurethan-Schaumstoff Expired DE2904943C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87673678A 1978-02-10 1978-02-10

Publications (2)

Publication Number Publication Date
DE2904943A1 true DE2904943A1 (de) 1979-08-16
DE2904943C2 DE2904943C2 (de) 1987-04-09

Family

ID=25368461

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792904943 Expired DE2904943C2 (de) 1978-02-10 1979-02-09 Verfahren zum Verdichten von offenzelligem Polyurethan-Schaumstoff

Country Status (3)

Country Link
JP (1) JPS54163969A (fi)
DE (1) DE2904943C2 (fi)
GB (1) GB2014168B (fi)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034583A1 (de) * 1979-11-05 1981-05-14 Koss Corp., Milwaukee, Wis. Verfahren zum formen von ohrpolstern
US5171756A (en) * 1991-07-31 1992-12-15 Crain Industries, Inc. Three stage cooling of porous materials
US5401448A (en) * 1989-06-02 1995-03-28 Vertifoam International Limited Controlled cooling of porous materials
US5702652A (en) * 1990-05-31 1997-12-30 Crain Industries, Inc. Controlled cooling of porous materials

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5695976A (en) * 1979-12-28 1981-08-03 Toray Silicone Co Ltd Application of two_component silicone sealant
JPS59199222A (ja) * 1983-04-27 1984-11-12 Sekisui Chem Co Ltd 熱可塑性樹脂発泡体の製造方法およびその製造装置
DE4041864A1 (de) * 1990-12-27 1992-07-02 Helmut Pelzer Wiederverwertung duroplastischer polyurethanschaumteile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475525A (en) * 1966-09-22 1969-10-28 Timothy V Peters Process of reticulating polyurethane foams
US3577519A (en) * 1968-11-29 1971-05-04 Olin Mathieson Process for controlling the amount of densification in polyurethane foams and products produced thereby

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475525A (en) * 1966-09-22 1969-10-28 Timothy V Peters Process of reticulating polyurethane foams
US3577519A (en) * 1968-11-29 1971-05-04 Olin Mathieson Process for controlling the amount of densification in polyurethane foams and products produced thereby

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034583A1 (de) * 1979-11-05 1981-05-14 Koss Corp., Milwaukee, Wis. Verfahren zum formen von ohrpolstern
US5401448A (en) * 1989-06-02 1995-03-28 Vertifoam International Limited Controlled cooling of porous materials
US5702652A (en) * 1990-05-31 1997-12-30 Crain Industries, Inc. Controlled cooling of porous materials
US5171756A (en) * 1991-07-31 1992-12-15 Crain Industries, Inc. Three stage cooling of porous materials

Also Published As

Publication number Publication date
DE2904943C2 (de) 1987-04-09
GB2014168A (en) 1979-08-22
JPS54163969A (en) 1979-12-27
GB2014168B (en) 1982-07-21

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