GB1405587A - Production of shaped articles - Google Patents

Production of shaped articles

Info

Publication number
GB1405587A
GB1405587A GB581772A GB581772A GB1405587A GB 1405587 A GB1405587 A GB 1405587A GB 581772 A GB581772 A GB 581772A GB 581772 A GB581772 A GB 581772A GB 1405587 A GB1405587 A GB 1405587A
Authority
GB
United Kingdom
Prior art keywords
slurry
layer
agglomerated
laminated
pressure rolls
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
GB581772A
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB581772A priority Critical patent/GB1405587A/en
Priority to IT5161472A priority patent/IT961467B/en
Priority to AU44706/72A priority patent/AU479994B2/en
Priority to US27327972 priority patent/US3895997A/en
Priority to US273280A priority patent/US3895998A/en
Priority to CA147,575A priority patent/CA1016709A/en
Priority to ES405055A priority patent/ES405055A1/en
Priority to FR7226487A priority patent/FR2146883A5/fr
Priority to DE2235975A priority patent/DE2235975A1/en
Publication of GB1405587A publication Critical patent/GB1405587A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/20—Agglomeration, binding or encapsulation of solid waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/28—Moulding or pressing characterised by using extrusion presses
    • 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
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/09—Uses for paper making sludge

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

1405587 Board manufacture NATIONAL RESEARCH DEVELOPMENT CORP 13 July 1972 [21 July 1971 8 Feb 1972] 34243/71 and 5817/72 Headings D2A and D2B [Also in Division B5] A board making process comprises depositing a layer of an aqueous slurry comprising a mixture of a fibrous waste material and a mineral waste material and controlling the water content of the slurry so as to produce a coherent agglomerated layer having a degree of wet strength, and then forming the layer under heat and pressure. The aqueous slurry may be deposited upon a liquid permeable support from a hopper or an extruder having means for discharging the slurry at a predetermined rate. The liquid permeable support may be an endless moving belt of metal or plastics mesh or gauze. The water content of the slurry may be regulated by means of a series of pressure rolls, by vacuum e.g. employing a cylindrical vacuum filter, by passage between top and bottom belts moving between converging fixed plates, (Fig. 3 not shown), or by drying. A plurality of formed agglomerated layers may be superimposed one on the other and laminated, or a single agglomerated layer may be formed and further layers deposited thereon by means of hoppers or extruders to form a composite which is then pressed to obtain a laminated agglomerated layer. Forming under heat and pressure may comprise moulding or passage between pressure rolls. The boards may be embossed. The fibrous waste material may be cellulosic fibres derived from waste paper, waste chopped rags, sisal, Boardmaking Apparatus. Typical apparatus for making board from papermill sludge effluents may comprise a screw extruder 3 for jute, or hessian, or nylon, polyester or polypropylene fibres, or asbestos or glass fibres. The mineral component may be a clay, e.g. china clay, an oxide e.g. silica, titanium dioxide, or antimony trioxide, or calcium carbonate. The waste materials may be derived from food, tobacco, quarry and mineral wastes, asbestos slurry wastes, and paper mill wastes. Additives such as fillers e.g. silica, quartz, limestone, pulverised fuel ash; styrene-butadiene, vinyl acetate, vinyl chloride, and acrylic resins; phenol-formaldehyde, melamine-formaldehyde, and urea-formaldehyde resins; flame retardants e.g. borates, boric acid, monoammonium phosphate and aluminium hydroxide; alum and starch; may be incorporated in the slurry. The agglomerated layer may contain a reinforcing medium e.g. glass fibres; or be laminated to on one or both surfaces with a reinforcing layer e.g. of woven hessian or glass fibre mat; or, the reinforcing medium may be sandwiched between two agglomerated layers and laminated by passage through pressure rolls. The process may be used for making insulation fibre boards, hardboards, and packaging boards. depositing the sludge effluent on an endless permeable belt, and chain-driven pressure rolls 7 for removing water from the sludge. The belt may be provided with cleaning water sprays 8 and rotary brushes 9.
GB581772A 1971-07-21 1972-02-08 Production of shaped articles Expired GB1405587A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB581772A GB1405587A (en) 1971-07-21 1972-02-08 Production of shaped articles
IT5161472A IT961467B (en) 1971-07-21 1972-07-18 PROCESS AND EQUIPMENT FOR THE PRODUCTION OF SHAPED OBJECTS IN PARTICULAR FROM INDUSTRIAL WASTE MATERIALS AND RELATED PRODUCT
AU44706/72A AU479994B2 (en) 1971-07-21 1972-07-19 Improvements in or relating to the production of shaped articles
US27327972 US3895997A (en) 1971-07-21 1972-07-19 Production of shaped articles from paper sludge
US273280A US3895998A (en) 1972-02-08 1972-07-19 Production of shaped articles from paper sludge
CA147,575A CA1016709A (en) 1971-07-21 1972-07-20 Production of shaped articles
ES405055A ES405055A1 (en) 1971-07-21 1972-07-21 Production of shaped articles from paper sludge
FR7226487A FR2146883A5 (en) 1971-07-21 1972-07-21
DE2235975A DE2235975A1 (en) 1971-07-21 1972-07-21 METHOD AND DEVICE FOR THE PRODUCTION OF SHAPED OBJECTS FROM FIBEROUS AND MINERAL INDUSTRIAL WASTE MATERIALS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3424371 1971-07-21
GB581772A GB1405587A (en) 1971-07-21 1972-02-08 Production of shaped articles

Publications (1)

Publication Number Publication Date
GB1405587A true GB1405587A (en) 1975-09-10

Family

ID=26240172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB581772A Expired GB1405587A (en) 1971-07-21 1972-02-08 Production of shaped articles

Country Status (7)

Country Link
US (1) US3895997A (en)
CA (1) CA1016709A (en)
DE (1) DE2235975A1 (en)
ES (1) ES405055A1 (en)
FR (1) FR2146883A5 (en)
GB (1) GB1405587A (en)
IT (1) IT961467B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110281A (en) 1974-02-15 1978-08-29 Gottfried Dreer Process for the manufacture of fillers from solid waste
GB2246737A (en) * 1990-07-21 1992-02-12 Aston Packaging Ltd Pulp moulding tool
US5997785A (en) * 1993-02-23 1999-12-07 Skjelmose; Frank Ivan Method for the manufacturing of a moulded body
WO2004001134A1 (en) * 2002-06-21 2003-12-31 Metanite A/S An installation for manufacturing of shaped elements from fibrous waste material and a method of using the same
EP1493504A2 (en) * 2003-07-03 2005-01-05 Josep Grau Almirall Procedure for the inertisation of inorganic wastes
GB2444913A (en) * 2006-09-20 2008-06-25 Procurasell Internat Packaging Method and apparatus for manufacturing a food packaging container

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032393A (en) * 1976-04-05 1977-06-28 The Upson Company Fire retardant webs and internal treatment therefor
US4076871A (en) * 1976-11-02 1978-02-28 Masonite Corporation Method of impregnating wood with boric acid
US4256491A (en) * 1977-09-01 1981-03-17 Champion International Corporation Waterproofing composition and method of making the same
US4190492A (en) * 1977-12-21 1980-02-26 Armstrong Cork Company Method of producing acoustical fiberboard
US4377440A (en) * 1978-05-25 1983-03-22 Stein Gasland Process for manufacturing of formed products
US4292188A (en) * 1979-06-01 1981-09-29 Martin Marietta Corporation Non-abrasive bauxite-based fire retardant
DE3110864C2 (en) * 1981-03-20 1984-10-04 Alfons K. 7513 Stutensee Herr Process for the production of an asbestos-free building material
FR2524828B1 (en) * 1982-04-09 1986-01-10 Jeand Heurs Papeteries NEW PRODUCTS FOR COATINGS, FOR INSULATION AND PACKAGING, BASED ON INDUSTRIAL WASTE AND IN PARTICULAR PAPER SLUDGE AND PROCESS FOR OBTAINING SAME
CH654226A5 (en) * 1981-09-18 1986-02-14 Folli Beteiligungsanstalt METHOD FOR PROCESSING WASTE AND WASTE COMPONENTS.
LU83899A1 (en) * 1982-01-26 1983-09-02 Terre Asbl INSULATING PANEL
US4562218A (en) * 1982-09-30 1985-12-31 Armstrong World Industries, Inc. Formable pulp compositions
WO1988007105A1 (en) * 1987-03-10 1988-09-22 Innofinance Általános Innovációs Pénzintézet Process for treating fibre materials
CA1325141C (en) * 1987-07-24 1993-12-14 Pierre Delvaux Boric acid treated asbestos fiber
US5582682A (en) * 1988-12-28 1996-12-10 Ferretti; Arthur Process and a composition for making cellulosic composites
US5460085A (en) * 1990-03-05 1995-10-24 Roberto Cappellari Process for compacting waste materials
IT1238836B (en) * 1990-03-05 1993-09-03 Roberto Cappellari PROCEDURE FOR THE COMPACTION OF URBAN, INDUSTRIAL OR SIMILAR WASTE MATERIALS AND PLANT FOR IMPLEMENTING THE PROCEDURE
US5360586A (en) * 1992-11-06 1994-11-01 Danny R. Wyatt Biodegradable cellulosic material and process for making such material
GB9310891D0 (en) * 1993-05-26 1993-07-14 Tran Ind Res Inc Utilization of deinking sludge in building materials
US5795377A (en) * 1997-04-08 1998-08-18 Kimberly-Clark Worldwide, Inc. Method for modifying papermaking sludge and products made from modified papermaking sludge
US6146498A (en) * 1997-04-30 2000-11-14 Kimberly-Clark Worldwide, Inc. Wound product cores and processes for making them
US6572736B2 (en) * 2000-10-10 2003-06-03 Atlas Roofing Corporation Non-woven web made with untreated clarifier sludge
US6852386B2 (en) * 2001-03-08 2005-02-08 Norbord Inc. Composite board with OSB faces
US20080179775A1 (en) * 2007-01-31 2008-07-31 Usg Interiors, Inc. Transfer Plate Useful in the Manufacture of Panel and Board Products
EP2167731A1 (en) * 2007-02-01 2010-03-31 Macber S.R.L. Process for manufacturing panels for constructing articles of furniture such as cupboards, modular kitchens and furniture items in general, and panel obtained by the process.
WO2009006262A1 (en) * 2007-06-28 2009-01-08 Buckman Laboratories International, Inc. Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products
US8133354B2 (en) * 2008-01-04 2012-03-13 USG Interiors, LLC. Acoustic ceiling tiles made with paper processing waste
US8367195B2 (en) * 2008-09-04 2013-02-05 Frank Santoro Products made from recycled cardboard
ITUD20110142A1 (en) * 2011-09-13 2013-03-14 Roberta Bas PANEL FOR INTERMEDIATE FURNITURE USE BETWEEN MDF AND CHIPBOARD
WO2014012756A2 (en) * 2012-06-27 2014-01-23 Jentschura, Rolf Panels artificial spongy wood self-resistant to flame spreading in it and prepared for easy handling with
US9297120B2 (en) * 2013-07-18 2016-03-29 Mario Lessard Paper-based malleable dough for moulding and sculpting applications
FI125895B (en) 2014-09-05 2016-03-31 Upm Kymmene Corp composite materials
FI20145775A (en) * 2014-09-05 2016-03-06 Upm Kymmene Corp composite Material
CN104385429A (en) * 2014-11-26 2015-03-04 武汉亿维登科技发展有限公司 Vacuum heating spreading machine
CN108214804B (en) * 2017-12-02 2020-01-14 张英华 Glass fiber or mixture mould pressing production equipment of glass fiber and plant fiber
CN110893638A (en) * 2018-09-12 2020-03-20 上海昶法新材料有限公司 Environment-friendly density board and manufacturing method thereof

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US2114300A (en) * 1938-04-19 Molding composition and process of
US1748224A (en) * 1926-07-17 1930-02-25 James J Hinde Apparatus for manufacturing fiber board or analogous material
US2007551A (en) * 1933-01-31 1935-07-09 John D Tompkins Method of and apparatus for making paper board
US2173391A (en) * 1935-11-27 1939-09-19 Insulite Co Process of manufacturing fibrous products
US2441169A (en) * 1943-06-19 1948-05-11 Roman Charles Machine for forming artificial board
US2648262A (en) * 1948-09-03 1953-08-11 American Mfg Company Inc Fibrous material extrusion apparatus
US2690393A (en) * 1950-06-24 1954-09-28 Armstrong Cork Co Method of producing fire-resistant insulation
US2639242A (en) * 1950-08-14 1953-05-19 American Cyanamid Co Acid-resistant wet strength paper
US2699389A (en) * 1951-07-26 1955-01-11 Mosinee Paper Mills Company Reinforced paper and method of making same
US3510394A (en) * 1965-01-25 1970-05-05 Conwed Corp Production of water-laid felted mineral fiber panels including use of flocculating agent
US3438847A (en) * 1965-02-26 1969-04-15 Weyerhaeuser Co Process of treating composite boards with borate chemicals produced thereby and product
US3576710A (en) * 1969-07-28 1971-04-27 Cons Paper Inc Brightening of white water sludge

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110281A (en) 1974-02-15 1978-08-29 Gottfried Dreer Process for the manufacture of fillers from solid waste
GB2246737A (en) * 1990-07-21 1992-02-12 Aston Packaging Ltd Pulp moulding tool
US5997785A (en) * 1993-02-23 1999-12-07 Skjelmose; Frank Ivan Method for the manufacturing of a moulded body
WO2004001134A1 (en) * 2002-06-21 2003-12-31 Metanite A/S An installation for manufacturing of shaped elements from fibrous waste material and a method of using the same
EP1493504A2 (en) * 2003-07-03 2005-01-05 Josep Grau Almirall Procedure for the inertisation of inorganic wastes
EP1493504A3 (en) * 2003-07-03 2008-07-02 Josep Grau Almirall Procedure for the inertisation of inorganic wastes
GB2444913A (en) * 2006-09-20 2008-06-25 Procurasell Internat Packaging Method and apparatus for manufacturing a food packaging container
GB2444913B (en) * 2006-09-20 2009-08-19 Procurasell Internat Packaging Method and apparatus for manufacturing a food packaging container

Also Published As

Publication number Publication date
ES405055A1 (en) 1976-01-01
CA1016709A (en) 1977-09-06
IT961467B (en) 1973-12-10
DE2235975A1 (en) 1973-02-01
US3895997A (en) 1975-07-22
AU4470672A (en) 1974-02-07
FR2146883A5 (en) 1973-03-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee