GB1065994A - Crushed polyurethane foam and method of making same - Google Patents

Crushed polyurethane foam and method of making same

Info

Publication number
GB1065994A
GB1065994A GB45881/63A GB4588163A GB1065994A GB 1065994 A GB1065994 A GB 1065994A GB 45881/63 A GB45881/63 A GB 45881/63A GB 4588163 A GB4588163 A GB 4588163A GB 1065994 A GB1065994 A GB 1065994A
Authority
GB
United Kingdom
Prior art keywords
polyurethane foam
irreversibly
making same
crushing
original thickness
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
GB45881/63A
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.)
Reeves Brothers Inc
Original Assignee
Reeves Brothers 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 Reeves Brothers Inc filed Critical Reeves Brothers Inc
Priority claimed from US487788A external-priority patent/US3370117A/en
Publication of GB1065994A publication Critical patent/GB1065994A/en
Expired 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
    • C08J9/36—After-treatment
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Crushing And Grinding (AREA)

Abstract

A soft pliable air pervious macrocellular irreversibly crushed body of polyurethane foam may be prepared by crushing a dry body of polyurethane foam irreversibly to reduce its original thickness to between 65 and 85% of its original thickness at an elevated temperature. The crushing is preferably effected at 300 DEG to 400 DEG F. by passing polyurethane foam between pressure rollers one of which is heated and which may be embossed. Suitable densities of the final foam are between 5 and 11.5 lbs./cu. ft. Polyester based foams are preferably used since in the main polyether based foams do not irreversibly crush.
GB45881/63A 1963-02-02 1963-11-20 Crushed polyurethane foam and method of making same Expired GB1065994A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25670363A 1963-02-02 1963-02-02
US487788A US3370117A (en) 1965-09-16 1965-09-16 Crushed polyurethane foam and method of making same

Publications (1)

Publication Number Publication Date
GB1065994A true GB1065994A (en) 1967-04-19

Family

ID=26945537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45881/63A Expired GB1065994A (en) 1963-02-02 1963-11-20 Crushed polyurethane foam and method of making same

Country Status (1)

Country Link
GB (1) GB1065994A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975567A (en) 1971-10-05 1976-08-17 Ionics Lyo Products Company Surgical dressings
US3978266A (en) 1972-10-05 1976-08-31 Ionics Lyo Products Company Surgical dressings
GB2161749A (en) * 1984-07-20 1986-01-22 Coolag Purlboard Limited Roofing method
EP1860143A1 (en) * 2006-05-24 2007-11-28 Recticel Flexible sheet material from thermo-compressing polyurethane foam and application methods using such material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975567A (en) 1971-10-05 1976-08-17 Ionics Lyo Products Company Surgical dressings
US3978266A (en) 1972-10-05 1976-08-31 Ionics Lyo Products Company Surgical dressings
GB2161749A (en) * 1984-07-20 1986-01-22 Coolag Purlboard Limited Roofing method
EP1860143A1 (en) * 2006-05-24 2007-11-28 Recticel Flexible sheet material from thermo-compressing polyurethane foam and application methods using such material
WO2007135170A1 (en) * 2006-05-24 2007-11-29 Recticel New flexible sheet material from thermo-compressing polyurethane foam and application methods using such new material

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