WO1993008974A1 - Shaped articles and methods for making them - Google Patents

Shaped articles and methods for making them Download PDF

Info

Publication number
WO1993008974A1
WO1993008974A1 PCT/GB1992/002068 GB9202068W WO9308974A1 WO 1993008974 A1 WO1993008974 A1 WO 1993008974A1 GB 9202068 W GB9202068 W GB 9202068W WO 9308974 A1 WO9308974 A1 WO 9308974A1
Authority
WO
WIPO (PCT)
Prior art keywords
filler
thermoplastic material
plastic
melted
particulate
Prior art date
Application number
PCT/GB1992/002068
Other languages
French (fr)
Inventor
Alun Roy Williams
Original Assignee
Alun Roy Williams
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 Alun Roy Williams filed Critical Alun Roy Williams
Publication of WO1993008974A1 publication Critical patent/WO1993008974A1/en

Links

Classifications

    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/90—Fillers or reinforcements, e.g. fibres
    • B29B7/905—Fillers or reinforcements, e.g. fibres with means for pretreatment of the charges or fibres
    • 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
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/04—Heat treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0082—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability making use of a rise in temperature, e.g. caused by an exothermic reaction
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/20—Inserts
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00129—Extrudable mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific 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
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • This invention relates to shaped articles and methods for making them.
  • the present invention provides novel methods for making shaped articles of plastics with particulate fillers and novel articles so produced.
  • the invention comprises a method for making a shaped article of thermoplastic material with a
  • thermoplastic material comprising the steps of heating the filler to a temperature at which the thermoplastic material is melted and mixing the filler with the plastic.
  • the thermoplastic material may also be heate before the mixing step, and may indeed be melted befor the mixing step, but in any event it may be arrange that the heat content of the filler is sufficient t heat and/or maintain the thermoplastic material so tha it is melted throughout the mixing step, and such tha the mixed material cools slowly for best mechanica properties.
  • the particulate filler may comprise sand and/o fly ash and/or any other material that will mix with th plastic and not be adversely affected at the necessar temperatures, and the thermoplastic material ma comprise waste plastic - there seem to be no limitations as to which kind of thermoplastic material can be use except that it seems desirable to exclude, at least as far as reasonably practical, plastics (such as polyvinyl chloride) that will degrade or char at the temperature used.
  • plastics such as polyvinyl chloride
  • the particulate filler can be heated in any suitable fashion, and a fluidized bed may be appropriate for some manufacturing operations, but simply heating the filler in a mixing container in an oven or with external heating elements is perfectly adequate.
  • the plastics material can simply be added to the hot filler, in comminuted form if necessary.
  • the filler should of course preferably alread be heated to a temperature at which it will melt th plastic (but not so hot as will char or otherwis adversely affect the plastic) although the mixture can be brought up to the melting temperature.
  • the mixture When thoroughly mixed, as in a concrete mixer, the mixture, which is flowable, can be moulded into a desired shape, as by being placed in a brick or paving slab or like mould, together if desired with a surface texture material. Reinforcing members and/or fibres such as glass wool may also be incorporated.
  • the mixed filler and thermoplastic material may, however, be extruded.
  • the invention also comprises a shaped article made by a method as described.
  • Figure 1 shows filler being heated in a mixing container
  • Figure 2 shows the introduction of plastic into the container of Figure 1;
  • Figure 3 shows a first step in a moulding operation
  • Figure 4 shows a second stage of the moulding operation
  • Figure 5 shows moulding with a surface texture material.
  • the figures illustrate a method for making a shaped article of thermoplastic material with a particulate filler comprising the steps of heating a filler 11 (Figure 1) to a temperature at which the thermoplastic material 12 ( Figure 2) is melted and mixing the filler with the plastic.
  • Figure 1 illustrates the filler 11, which may be of any suitable material, but for reasons of cost, sand and fly ash are preferred for many applications, being heated in a rotary mixing vessel 13.
  • the arrows indicate heat being applied from below the vessel 13, but the heat could be applied in any desired manner, as by an electric immersion heater arrangement or even by a fluidised bed driven by hot air.
  • the thermoplasti material 12 is added to the vessel 13 and the filler 1 and material 12 are mixed together.
  • the material 1 could be added molten or preheated, but it may b arranged that the filler 11 is able to carry enough hea to melt the plastic.
  • the heating may be continued o discontinued during the mixing.
  • the ideal proportions will depend on th particle size of the filler and on the type or types o plastic involved. A smaller particle size will requir more plastic. If sand is used as the filler, th plastic may constitute a quarter to a third of th mixture by weight. Simple experiment will determine optimum proportions for any particular filler a plastic combination - the mixture will be about rig when the hot mix has the consistency of a dough.
  • the press member 33 can carry a relief pattern decoration, and indeed the mould can be of any desir shape and complexity.
  • the mould 32 may for example be a brick paving slab mould.
  • the mould may be made of any material that wil not be affected by the temperatures involved, such fo example as concrete or refractory brick, or of aluminiu - the hot plastic may tend to stick to non-oxidis metal surfaces, and may in fact remove the oxide lay from copper, so that a second application of plast will stick to the clean copper.
  • Firm adhesion unoxidised metal surfaces is, of course, advantageous producing metal-reinforced articles - a strong, rig shelf may, for example, be produced using a corrugat metal insert.
  • Cladding materials may be incorporated as sho in Figure 5 by putting a layer, e.g. of stone chips in the mould before adding the mix.
  • the filler may itself comprise a mixture, but may be desirable to mix only particulate materials th have similar thermal properties to avoid differenti cooling effects and the production of internal strains.
  • the mixture is of such consistency that it c be extruded into rod, pipe, bar, beam or the li sections using a screw extruder.
  • the articles which can be made according the invention constitute a very effective end u because they can be used in permanent constructions su as roadways and pavements, sewer linings, bricks, ro tiles and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

There is disclosed a method for making a shaped article of thermoplastic material with a particulate filler comprising the steps of heating the filler to a temperature at which the thermoplastic material is melted and mixing the filler with the plastic.

Description

^x _ i _
SHAPEDARTICLESANDMETHODS FOR MAKINGTHEM
This invention relates to shaped articles and methods for making them.
It is well known to produce plastics material articles by moulding or extrusion, and fillers are often introduced into the molten plastics material to impart colour or opacity thereto or to improve the mechanical properties of the plastics material. This is in fact such a well-known process for producing inexpensive, expandable articles that there is a major disposal problem, since there is in general no satisfactory way of converting mixed waste plastics material into useful objects that can operate on such a scale as will absorb any significant fraction of the available waste.
The present invention provides novel methods for making shaped articles of plastics with particulate fillers and novel articles so produced.
The invention comprises a method for making a shaped article of thermoplastic material with a
(* particulate filler comprising the steps of heating the filler to a temperature at which the thermoplastic material is melted and mixing the filler with the plastic. The thermoplastic material may also be heate before the mixing step, and may indeed be melted befor the mixing step, but in any event it may be arrange that the heat content of the filler is sufficient t heat and/or maintain the thermoplastic material so tha it is melted throughout the mixing step, and such tha the mixed material cools slowly for best mechanica properties.
The particulate filler may comprise sand and/o fly ash and/or any other material that will mix with th plastic and not be adversely affected at the necessar temperatures, and the thermoplastic material ma comprise waste plastic - there seem to be no limitations as to which kind of thermoplastic material can be use except that it seems desirable to exclude, at least as far as reasonably practical, plastics (such as polyvinyl chloride) that will degrade or char at the temperature used.
The particulate filler can be heated in any suitable fashion, and a fluidized bed may be appropriate for some manufacturing operations, but simply heating the filler in a mixing container in an oven or with external heating elements is perfectly adequate. The plastics material can simply be added to the hot filler, in comminuted form if necessary. The filler should of course preferably alread be heated to a temperature at which it will melt th plastic (but not so hot as will char or otherwis adversely affect the plastic) although the mixture can be brought up to the melting temperature.
When thoroughly mixed, as in a concrete mixer, the mixture, which is flowable, can be moulded into a desired shape, as by being placed in a brick or paving slab or like mould, together if desired with a surface texture material. Reinforcing members and/or fibres such as glass wool may also be incorporated.
The mixed filler and thermoplastic material may, however, be extruded.
The invention also comprises a shaped article made by a method as described.
Embodiments of shaped articles and methods of making them according to the invention will now be described with reference to the accompanying drawings, in which :-
Figure 1 shows filler being heated in a mixing container; Figure 2 shows the introduction of plastic into the container of Figure 1;
Figure 3 shows a first step in a moulding operation;
Figure 4 shows a second stage of the moulding operation;
and Figure 5 shows moulding with a surface texture material.
The figures illustrate a method for making a shaped article of thermoplastic material with a particulate filler comprising the steps of heating a filler 11 (Figure 1) to a temperature at which the thermoplastic material 12 (Figure 2) is melted and mixing the filler with the plastic.
Figure 1 illustrates the filler 11, which may be of any suitable material, but for reasons of cost, sand and fly ash are preferred for many applications, being heated in a rotary mixing vessel 13. The arrows indicate heat being applied from below the vessel 13, but the heat could be applied in any desired manner, as by an electric immersion heater arrangement or even by a fluidised bed driven by hot air. When the filler 11 is hot, the thermoplasti material 12 is added to the vessel 13 and the filler 1 and material 12 are mixed together. The material 1 could be added molten or preheated, but it may b arranged that the filler 11 is able to carry enough hea to melt the plastic. The heating may be continued o discontinued during the mixing.
What appears to be important is that hot, molte plastic is not introduced to cold filler, and what als appears to be important is that the mixture cool gradually so as not to generate thermal stress at th plastic/filler interface.
Hitherto, when fillers have been added t plastics, they are added in such a proportion as no substantially to change the character of the plastic. However, with the present invention it is possible an even desirable to add a much greater ratio of filler so much in fact that the product ceases to resemble plastic.
The ideal proportions will depend on th particle size of the filler and on the type or types o plastic involved. A smaller particle size will requir more plastic. If sand is used as the filler, th plastic may constitute a quarter to a third of th mixture by weight. Simple experiment will determine optimum proportions for any particular filler a plastic combination - the mixture will be about rig when the hot mix has the consistency of a dough.
The mixture 31, which may have the consisten of a dough, is put into a mould 32 as shown in Figure and tamped down by a press member 33, or perhaps spre as by a blade to fill the mould level as shown in Figu 4. The press member 33 can carry a relief pattern decoration, and indeed the mould can be of any desir shape and complexity.
The mould 32 may for example be a brick paving slab mould. Bricks or slabs made in this wa using sand and waste plastics materials in suitab proportion, give no or little indication of containi any plastics material at all, yet are strong a hard-wearing and suitable for many uses to which regul bricks and slabs are conventionally put. An advanta over regular bricks, which are usually porous, is th bricks or slabs made according to the invention a waterproof, and cannot be affected by frost.
The mould may be made of any material that wil not be affected by the temperatures involved, such fo example as concrete or refractory brick, or of aluminiu - the hot plastic may tend to stick to non-oxidis metal surfaces, and may in fact remove the oxide lay from copper, so that a second application of plast will stick to the clean copper. Firm adhesion unoxidised metal surfaces is, of course, advantageous producing metal-reinforced articles - a strong, rig shelf may, for example, be produced using a corrugat metal insert.
Cladding materials may be incorporated as sho in Figure 5 by putting a layer, e.g. of stone chips in the mould before adding the mix.
The filler may itself comprise a mixture, but may be desirable to mix only particulate materials th have similar thermal properties to avoid differenti cooling effects and the production of internal strains.
The mixture is of such consistency that it c be extruded into rod, pipe, bar, beam or the li sections using a screw extruder.
Looked at from the point of view of was disposal, the articles which can be made according the invention constitute a very effective end u because they can be used in permanent constructions su as roadways and pavements, sewer linings, bricks, ro tiles and the like.

Claims

1. A method for making a shaped article of thermo¬ plastic material with a particulate filler comprising the steps of heating the filler to a temperature at which the thermoplastic material is melted and mixing the filler with the plastic.
2. A method according to claim 1, in which the thermoplastic material is also heated before the mixing step.
3. A method according to claim 2, in which the thermoplastic material is melted before the mixing step.
4. A method according to claim 1, in which the heat content of the filler is sufficient to heat and maintain the thermoplastic material so that it is melted throughout the mixing step.
5. A method according to any one of claims 1 to 4, in which the heat content of the filler is such that the mixed filler and thermoplastic material cools slowly.
6. A method according to any one of claims 1 to 5, in which the particulate filler comprises sand.
7. A method according to any one of claims 1 to 6, in which the particulate filler comprises fly ash.
8. A method according to any one of claims 1 to 7, in which the thermoplastic material comprises waste plastic.
9. A method according to claim 8, in which the waste plastic contains no or little polyvinyl chloride.
10. A method according to any one of claims 1 to 9, in which the particulate filler is heated in a fluidised bed.
11. A method according to any one of claims 1 to 10, in which the mixed filler and thermoplastic material, while still heated so that it is flowable, is moulded into a desired shape.
12. A method according to claim 11, in which the flowable mixture is placed in a brick or paving slab or like mould.
13. A method according to claim 11 or claim 12, in which a surface texture material is applied in the moulding step.
14. A method according to any one of claims 11 to 13, in which reinforcing members are incorporated during the moulding stage.
15. A method according to any one of claims 1 to 10, in which the mixed filler and thermoplastic material are extruded.
16. A shaped article made by a method according to any one of claims 1 to 15.
PCT/GB1992/002068 1991-11-08 1992-11-09 Shaped articles and methods for making them WO1993008974A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9123817A GB9123817D0 (en) 1991-11-08 1991-11-08 Shaped articles and methods for making them
GB9123817.0 1991-11-08

Publications (1)

Publication Number Publication Date
WO1993008974A1 true WO1993008974A1 (en) 1993-05-13

Family

ID=10704346

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/002068 WO1993008974A1 (en) 1991-11-08 1992-11-09 Shaped articles and methods for making them

Country Status (3)

Country Link
AU (1) AU2920092A (en)
GB (1) GB9123817D0 (en)
WO (1) WO1993008974A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996017807A1 (en) * 1994-11-28 1996-06-13 Vesa Keskisarja Method for producing filling compound from warm filling material such as waste and recoverable plastics
DE4443988A1 (en) * 1994-12-12 1996-06-13 Hanichl Michelle Shaped body from plastics waste
FR2736579A1 (en) * 1995-07-11 1997-01-17 Canuel Philippe Prodn. of composite material from plastic waste
WO2000061669A1 (en) * 1999-04-08 2000-10-19 Donald Roy Crawley Conversion of plastics material into composite product
WO2002016098A1 (en) * 2000-08-25 2002-02-28 Pasell S.R.L. Process for the production of manufactures and manufactures obtained with such process
WO2002000567A3 (en) * 2000-06-30 2002-07-11 Michael Manes Material and method and device for producing the same
WO2002090288A1 (en) * 2001-05-08 2002-11-14 Shell Internationale Research Maatschappij B.V. Compositions comprising solid particles and binder
EP1354681A1 (en) * 2002-04-15 2003-10-22 Bobo Holding B.V. Moulded product comprising a thermoplastic component and a particulate filler material and method for producing the same
EP2428351A2 (en) 2010-09-09 2012-03-14 Siegfried Kreft Method and device for the manufacture of moulds and granulate
US20150094412A1 (en) * 2013-09-27 2015-04-02 Victor Manuel García Alarcón Laterite and polymer construction brick and material and method of manufacturing same
CN108751796A (en) * 2018-07-06 2018-11-06 四川建筑职业技术学院 A kind of complex architectural template and preparation method thereof prepared using municipal sludge
CN110312612A (en) * 2016-12-16 2019-10-08 创新石科技公司 The manufacturing method of slab

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226287A1 (en) * 1971-06-03 1972-12-14 Joto Chem Co Ltd Process for making molded products from blends of thermoplastic resins and fillers
DE2311797A1 (en) * 1972-04-04 1973-10-18 Bunzl & Biach Ag Thermoplastic scrap utilization -by mixing with heat-resistant - filler material to made solid articles or coverings etc
NL8200730A (en) * 1982-02-24 1983-09-16 Hubertus Zandbergen Building materials from mineral filler and thermoplastic - made by heating filler, esp. sand, and adding waste thermoplastic, esp. polystyrene foam to form shapable dough

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226287A1 (en) * 1971-06-03 1972-12-14 Joto Chem Co Ltd Process for making molded products from blends of thermoplastic resins and fillers
DE2311797A1 (en) * 1972-04-04 1973-10-18 Bunzl & Biach Ag Thermoplastic scrap utilization -by mixing with heat-resistant - filler material to made solid articles or coverings etc
NL8200730A (en) * 1982-02-24 1983-09-16 Hubertus Zandbergen Building materials from mineral filler and thermoplastic - made by heating filler, esp. sand, and adding waste thermoplastic, esp. polystyrene foam to form shapable dough

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996017807A1 (en) * 1994-11-28 1996-06-13 Vesa Keskisarja Method for producing filling compound from warm filling material such as waste and recoverable plastics
DE4443988A1 (en) * 1994-12-12 1996-06-13 Hanichl Michelle Shaped body from plastics waste
FR2736579A1 (en) * 1995-07-11 1997-01-17 Canuel Philippe Prodn. of composite material from plastic waste
WO2000061669A1 (en) * 1999-04-08 2000-10-19 Donald Roy Crawley Conversion of plastics material into composite product
US7345107B2 (en) 2000-06-30 2008-03-18 Michael Manes Material and method and device for producing the same
WO2002000567A3 (en) * 2000-06-30 2002-07-11 Michael Manes Material and method and device for producing the same
WO2002016098A1 (en) * 2000-08-25 2002-02-28 Pasell S.R.L. Process for the production of manufactures and manufactures obtained with such process
WO2002090288A1 (en) * 2001-05-08 2002-11-14 Shell Internationale Research Maatschappij B.V. Compositions comprising solid particles and binder
EP1354681A1 (en) * 2002-04-15 2003-10-22 Bobo Holding B.V. Moulded product comprising a thermoplastic component and a particulate filler material and method for producing the same
EP2428351A2 (en) 2010-09-09 2012-03-14 Siegfried Kreft Method and device for the manufacture of moulds and granulate
DE102010037441A1 (en) 2010-09-09 2012-03-15 Horn Dietmar Method and device for the production of molded parts and granules
US20150094412A1 (en) * 2013-09-27 2015-04-02 Victor Manuel García Alarcón Laterite and polymer construction brick and material and method of manufacturing same
CN110312612A (en) * 2016-12-16 2019-10-08 创新石科技公司 The manufacturing method of slab
CN110312612B (en) * 2016-12-16 2021-08-03 创新石科技公司 Method for manufacturing slab
CN108751796A (en) * 2018-07-06 2018-11-06 四川建筑职业技术学院 A kind of complex architectural template and preparation method thereof prepared using municipal sludge

Also Published As

Publication number Publication date
GB9123817D0 (en) 1992-01-02
AU2920092A (en) 1993-06-07

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