GB884896A - Process and apparatus for utilization of scraps of polystyrene foam - Google Patents

Process and apparatus for utilization of scraps of polystyrene foam

Info

Publication number
GB884896A
GB884896A GB4324359A GB4324359A GB884896A GB 884896 A GB884896 A GB 884896A GB 4324359 A GB4324359 A GB 4324359A GB 4324359 A GB4324359 A GB 4324359A GB 884896 A GB884896 A GB 884896A
Authority
GB
United Kingdom
Prior art keywords
press
steam
holes
air
atmos
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
GB4324359A
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.)
Beazer East Inc
Original Assignee
Koppers Co 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 Koppers Co Inc filed Critical Koppers Co Inc
Publication of GB884896A publication Critical patent/GB884896A/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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processing Of Solid Wastes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

884,896. Utilisation of scrap polystyrene foam. KOPPERS CO. Inc. Dec. 21, 1959 [Dec. 27, 1958], No. 43243/59. Class 87(2). Polystyrene foam scraps, comminuted if necessary, are placed under mechanical pressure in a press provided with means for the escape of air, and steam at a pressure of between 1 and 10 atmos., preferably 4 to 5 atmos., is introduced into the press until the polystyrene foam tightly closes the means for escape of air and the pressure in the press has increased to between 0À5 and 1À2 atmos., preferably about 0À7 atmos., above atmospheric, the supply of steam then being interrupted and the material allowed to cool. An example of a suitable press is illustrated in Fig. 2 and has two covers, 2 and 3, constructed as steam chests, the lower of which is urged towards the upper by a plunger 9 after the press has been filled with scraps. Part of the air contained in the press escapes through holes 8 provided in the side walls, these holes being arranged at such a level that, when the press is closed, they are located opposite the centre of the cavity of the press. Steam is then introduced through the pipe lines 4 into the two steam chests, displacing the air still in the press and then flowing out of the press through the holes 8 until the polystyrene foam has been heated sufficiently for all the holes and any other places which do not fit in an air-tight manner to be sealed completely. By means of shut-off devices (not shown) the supply of steam is cut off when the desired pressure (e.g. 0À7 atmos.) is reached. The reduction in the volume of the press cavity is preferably about 50%. Where slabs of less than 30 cm. thickness are required, it is sufficient to supply the steam through the lower cover 3 in which case a simple cover 10 is located at the top, Fig. 4. The holes 8 are then located at the uppermost end of the side walls or else are provided in the cover 10. In certain circumstances, the joint between the cover 10 and the side walls is sufficient for the discharge of air and steam so that the escape holes 8 are unnecessary.
GB4324359A 1958-12-27 1959-12-21 Process and apparatus for utilization of scraps of polystyrene foam Expired GB884896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED29675A DE1222654B (en) 1958-12-27 1958-12-27 Method and device for the manufacture of products from polystyrene foam waste

Publications (1)

Publication Number Publication Date
GB884896A true GB884896A (en) 1961-12-20

Family

ID=7040189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4324359A Expired GB884896A (en) 1958-12-27 1959-12-21 Process and apparatus for utilization of scraps of polystyrene foam

Country Status (3)

Country Link
DE (1) DE1222654B (en)
FR (1) FR1248691A (en)
GB (1) GB884896A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469655A (en) * 1981-10-13 1984-09-04 Kiss G H Process and apparatus for moulding articles from binder-containing organic fibrous mats
GB2187996A (en) * 1986-02-27 1987-09-23 Trondex Ltd Process for producing shaped products
FR2676386A1 (en) * 1991-05-15 1992-11-20 Scient Tech Batimen Centre METHOD AND DEVICE FOR MANUFACTURING BUILDING BLOCKS FROM A HYDRAULIC BINDER SUCH AS PLASTER, AN INERT LOAD SUCH AS SAND AND WATER.
US5217660A (en) * 1991-07-01 1993-06-08 Hewlett-Packard Company Method for manufacturing expanded polystyrene foam components from used polystyrene materials
US5266396A (en) * 1991-07-01 1993-11-30 Hewlett-Packard Company Expanded polystyrene foam articles produced from used polystyrene materials
US5308560A (en) * 1986-09-18 1994-05-03 M. Y Trondex Limited Process for producing mouldings from an expanded styrene polymer
US5470521A (en) * 1989-07-19 1995-11-28 Mobil Oil Corporation Method for the thermal densification of thermoplastic articles
US5788996A (en) * 1993-11-12 1998-08-04 Tecfim Apparatus for manufacturing building blocks from a hydraulic binder such as plaster, an inert filler such as sand, and water
WO2006086813A1 (en) * 2005-02-18 2006-08-24 Alois Zorn Foam material product
RU2602103C2 (en) * 2012-04-11 2016-11-10 Финнфоум Ой Method and system for manufacturing insulation block and insulating block

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL274577A (en) * 1961-02-08
DE1233577B (en) * 1963-05-21 1967-02-02 Rudolf Buchmann Method and device for filling molds suitable for the production of foam molded parts with thermoplastic, pre-expanded foam particles
DE3423774C5 (en) 1984-06-28 2008-03-27 Ertl, Zäzilia Two-part mold for inflated by gas inclusions Kunststoffpreßmassen of waste plastic
DE3937618C2 (en) * 1989-11-11 1996-08-29 Heinrich Moser Process and device for the production of polystyrene foam waste products
DE4414467A1 (en) * 1994-04-26 1995-11-02 Greiz Plasttechnik Shaping foamed recycling polystyrene material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE660986C (en) * 1933-11-08 1938-06-08 Degussa Process for the production of artificially produced cavities interspersed with grinding and polishing bodies made of abrasive grains and synthetic resin
CH295319A (en) * 1950-06-06 1953-12-15 Staeger Reinhard Process for the production of cell bodies.
DE1735321U (en) * 1954-11-02 1956-12-06 Metzeler Gummiwerke A G MOLDED BODIES, IN PARTICULAR UPHOLSTERY MADE OF PLASTIC FOAM.

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469655A (en) * 1981-10-13 1984-09-04 Kiss G H Process and apparatus for moulding articles from binder-containing organic fibrous mats
GB2187996A (en) * 1986-02-27 1987-09-23 Trondex Ltd Process for producing shaped products
GB2187996B (en) * 1986-02-27 1989-11-08 Trondex Ltd Process for producing shaped products
US5308560A (en) * 1986-09-18 1994-05-03 M. Y Trondex Limited Process for producing mouldings from an expanded styrene polymer
US5470521A (en) * 1989-07-19 1995-11-28 Mobil Oil Corporation Method for the thermal densification of thermoplastic articles
WO1992020502A1 (en) * 1991-05-15 1992-11-26 Centre Scientifique Et Technique Du Batiment Method and device for manufacturing construction blocks from a hydraulic binder such as plaster, an inert filler such as sand, and water
FR2676386A1 (en) * 1991-05-15 1992-11-20 Scient Tech Batimen Centre METHOD AND DEVICE FOR MANUFACTURING BUILDING BLOCKS FROM A HYDRAULIC BINDER SUCH AS PLASTER, AN INERT LOAD SUCH AS SAND AND WATER.
US5507996A (en) * 1991-05-15 1996-04-16 Tecfim Method and apparatus for manufacturing building blocks from a hydraulic binder such as plaster, an inert filler such as sand, and water
US5266396A (en) * 1991-07-01 1993-11-30 Hewlett-Packard Company Expanded polystyrene foam articles produced from used polystyrene materials
US5217660A (en) * 1991-07-01 1993-06-08 Hewlett-Packard Company Method for manufacturing expanded polystyrene foam components from used polystyrene materials
US5788996A (en) * 1993-11-12 1998-08-04 Tecfim Apparatus for manufacturing building blocks from a hydraulic binder such as plaster, an inert filler such as sand, and water
WO2006086813A1 (en) * 2005-02-18 2006-08-24 Alois Zorn Foam material product
US8765043B2 (en) 2005-02-18 2014-07-01 Alois Zorn Method of producing a foam material product
RU2602103C2 (en) * 2012-04-11 2016-11-10 Финнфоум Ой Method and system for manufacturing insulation block and insulating block
US9702498B2 (en) 2012-04-11 2017-07-11 Finnfoam Oy Method and system for manufacturing insulation block and insulation block
EP2836346B1 (en) * 2012-04-11 2018-09-19 Finnfoam Oy Method for manufacturing insulation block and insulation block
US10234067B2 (en) 2012-04-11 2019-03-19 Finnfoam Oy Method and system for manufacturing insulation block and insulation block

Also Published As

Publication number Publication date
DE1222654B (en) 1966-08-11
FR1248691A (en) 1960-12-23

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