GB1243749A - Shaped polyurethane articles - Google Patents

Shaped polyurethane articles

Info

Publication number
GB1243749A
GB1243749A GB8908/69A GB890869A GB1243749A GB 1243749 A GB1243749 A GB 1243749A GB 8908/69 A GB8908/69 A GB 8908/69A GB 890869 A GB890869 A GB 890869A GB 1243749 A GB1243749 A GB 1243749A
Authority
GB
United Kingdom
Prior art keywords
foam
moulded
particles
different
compressed
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
GB8908/69A
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.)
Koepp & Co R Chem Fab AG
Original Assignee
Koepp & Co R Chem Fab AG
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 Koepp & Co R Chem Fab AG filed Critical Koepp & Co R Chem Fab AG
Publication of GB1243749A publication Critical patent/GB1243749A/en
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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/207—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising impregnating expanded particles or fragments with a binder
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/205—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics of foamed plastics, or of plastics and foamed plastics, optionally reinforced
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

1,243,749. Moulding cellular articles. RUDOLPH KOEPP & CO. CHEMISCHE FABRIK A.G. 19 Feb., 1969 [1 March, 1968], No. 8908/69. Heading B5A. [Also in Division C3] A moulded component consists of compressed and sintered particles of soft polyurethane foam, has a weight per unit volume between 0À2 and 0À6 g./c.c. a porous structure and smooth and/or embossed surfaces, the foam having been compressed in a ratio of 1 : 10 to 1 : 50 at a temperature of 170‹ to 250‹ C. Mixtures of different foam plastic particles may be used in the production of the moulded component, i.e. the foam particles may be different chemically, e.g. a mixture of polyetherurethane and polyetherurethane foams may be used and/or physically, e.g. particles of different density may be used. The moulded component is suitably prepared from waste foam. The surface of the moulded element may be sealed by fusing thermoplastic or heatsetting resins into the surface of the moulding and this may be effected by packing the foam plastic particles in, for example, a polyethylene bag and then compressing the complete bag into the moulded element. The polyethylene then melts and penetrates into the surface of the moulded element.
GB8908/69A 1968-03-01 1969-02-19 Shaped polyurethane articles Expired GB1243749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE6750189U DE6750189U (en) 1968-03-01 1968-03-01 PRESSED FORMED PARTS ON A POLYURETHANE BASE.

Publications (1)

Publication Number Publication Date
GB1243749A true GB1243749A (en) 1971-08-25

Family

ID=6591292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8908/69A Expired GB1243749A (en) 1968-03-01 1969-02-19 Shaped polyurethane articles

Country Status (5)

Country Link
BE (1) BE728714A (en)
DE (1) DE6750189U (en)
FR (1) FR2002989A7 (en)
GB (1) GB1243749A (en)
LU (1) LU57984A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379368A1 (en) * 1977-02-02 1978-09-01 Gen Foam Products WEAR-RESISTANT FLEXIBLE SHEET MATERIAL AND PROCESS OF PREPARATION
CN104227904A (en) * 2013-06-21 2014-12-24 梁冠华 Polyurethane elastomer forming method and sports safety protective article made by adopting polyurethane elastomer forming method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2806264A1 (en) * 1978-02-15 1979-08-23 Schmidt Gmbh Karl DEFORMING BODY MADE OF PLASTIC FOAM
ES2329641B1 (en) * 2007-09-13 2010-09-16 Anguiano Poliuretanos, S.L. "SHOWER PLATE".

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379368A1 (en) * 1977-02-02 1978-09-01 Gen Foam Products WEAR-RESISTANT FLEXIBLE SHEET MATERIAL AND PROCESS OF PREPARATION
CN104227904A (en) * 2013-06-21 2014-12-24 梁冠华 Polyurethane elastomer forming method and sports safety protective article made by adopting polyurethane elastomer forming method

Also Published As

Publication number Publication date
LU57984A1 (en) 1969-05-22
BE728714A (en) 1969-08-20
DE6750189U (en) 1969-01-02
FR2002989A7 (en) 1969-11-07

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