GB1265471A - - Google Patents

Info

Publication number
GB1265471A
GB1265471A GB1265471DA GB1265471A GB 1265471 A GB1265471 A GB 1265471A GB 1265471D A GB1265471D A GB 1265471DA GB 1265471 A GB1265471 A GB 1265471A
Authority
GB
United Kingdom
Prior art keywords
mix
plaster
gypsum
weight
amount
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
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 filed Critical
Priority to GB5341567 priority Critical
Publication of GB1265471A publication Critical patent/GB1265471A/en
Application status is Expired legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/02Conditioning the material prior to shaping
    • B28B17/023Conditioning gypsum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24Macromolecular compounds
    • C04B24/26Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2623Polyvinylalcohols; Polyvinylacetates

Abstract

1,265,471. Extruding gypsum. BPB INDUSTRIES Ltd. 21 Feb., 1969 [23 Nov., 1967], No. 53415/67. Heading B5A. In a method of extruding gypsum, a mix of gypsum and water is adjusted such that a predetermined time after contacting the plaster with water the mix attains a degree of stiffening enabling it to retain its extruded cross-section. Preferably a synthetic resin such as ureaformaldehyde, melamine formaldehyde, polyvinyl acetate, polyacrylate, or a copolymer of monomers which include the residue of a synthetic, predominantly tertiary, carboxylic acid with other monomers such as vinyl acetate, is added to the mix by an amount from 2¢-10% by weight of plaster. Such resins act both as a reinforcement in the final product and a lubricant for the mix during extrusion, the lower extrusion pressure thereby required facilitating the production of a low density product. Other additives mentioned, in addition to conventional retarders, accelerators and setting stabilizers and a conventional aggregate such as sand, are lightweight aggregates such as perlite, vermiculite, granular polystyrene and ureaformaldehyde foam in an amount not exceeding 20% by weight of the plaster, fibrous reinforcing material such as chopped textile fibres, wood pulp, polypropylene and mineral fibres and glass fibres, modifying agents such as cellulose ethers and clay such as bentonite in an amount from 5-35% by weight of the plaster. It is stated that the lightweight aggregate under relatively high extrusion pressures may act as a lubricant. To further reduce the density of the product, the mix may be received on a conveyer belt and be delivered thereby to a drying chamber. Three examples are given.
GB1265471D 1967-11-23 1967-11-23 Expired GB1265471A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5341567 1967-11-23

Publications (1)

Publication Number Publication Date
GB1265471A true GB1265471A (en) 1972-03-01

Family

ID=10467721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265471D Expired GB1265471A (en) 1967-11-23 1967-11-23

Country Status (1)

Country Link
GB (1) GB1265471A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336585A (en) * 1998-04-20 1999-10-27 Bpb Plc Gypsum plaster
ES2187301A1 (en) * 2001-11-15 2003-05-16 Univ Madrid Politecnica Plates of stucco parget or gypsum are reinforced with binary additions of fibers of polypropylene and dispersions of melamine-formaldehyde
US7658794B2 (en) 2000-03-14 2010-02-09 James Hardie Technology Limited Fiber cement building materials with low density additives
US7704316B2 (en) 2001-03-02 2010-04-27 James Hardie Technology Limited Coatings for building products and methods of making same
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
US8209927B2 (en) 2007-12-20 2012-07-03 James Hardie Technology Limited Structural fiber cement building materials
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
EP2964459A4 (en) * 2013-03-05 2016-10-26 Intellectual Gorilla Gmbh Extruded gypsum-based materials
US9701583B2 (en) 2013-04-24 2017-07-11 The Intellectual Gorilla Gmbh Expanded lightweight aggregate made from glass or pumice
US10077597B2 (en) 2012-06-29 2018-09-18 The Intellectual Gorilla Gmbh Fire rated door
US10196309B2 (en) 2013-10-17 2019-02-05 The Intellectual Gorilla Gmbh High temperature lightweight thermal insulating cement and silica based materials
US10240089B2 (en) 2012-06-29 2019-03-26 The Intellectual Gorilla Gmbh Gypsum composites used in fire resistant building components
US10315386B2 (en) 2012-06-29 2019-06-11 The Intellectual Gorilla Gmbh Gypsum composites used in fire resistant building components
US10414692B2 (en) 2013-04-24 2019-09-17 The Intellectual Gorilla Gmbh Extruded lightweight thermal insulating cement-based materials
US10442733B2 (en) 2014-02-04 2019-10-15 The Intellectual Gorilla Gmbh Lightweight thermal insulating cement based materials
US10538459B2 (en) 2015-06-05 2020-01-21 The Intellectual Gorilla Gmbh Extruded cement based materials

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336585B (en) * 1998-04-20 2002-06-26 Bpb Plc Gypsum plaster
GB2336585A (en) * 1998-04-20 1999-10-27 Bpb Plc Gypsum plaster
US8603239B2 (en) 2000-03-14 2013-12-10 James Hardie Technology Limited Fiber cement building materials with low density additives
US8182606B2 (en) 2000-03-14 2012-05-22 James Hardie Technology Limited Fiber cement building materials with low density additives
US7727329B2 (en) 2000-03-14 2010-06-01 James Hardie Technology Limited Fiber cement building materials with low density additives
US7658794B2 (en) 2000-03-14 2010-02-09 James Hardie Technology Limited Fiber cement building materials with low density additives
US7704316B2 (en) 2001-03-02 2010-04-27 James Hardie Technology Limited Coatings for building products and methods of making same
ES2187301A1 (en) * 2001-11-15 2003-05-16 Univ Madrid Politecnica Plates of stucco parget or gypsum are reinforced with binary additions of fibers of polypropylene and dispersions of melamine-formaldehyde
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
US8209927B2 (en) 2007-12-20 2012-07-03 James Hardie Technology Limited Structural fiber cement building materials
US10315386B2 (en) 2012-06-29 2019-06-11 The Intellectual Gorilla Gmbh Gypsum composites used in fire resistant building components
US10435941B2 (en) 2012-06-29 2019-10-08 The Intellectual Gorilla Gmbh Fire rated door core
US10077597B2 (en) 2012-06-29 2018-09-18 The Intellectual Gorilla Gmbh Fire rated door
US10240089B2 (en) 2012-06-29 2019-03-26 The Intellectual Gorilla Gmbh Gypsum composites used in fire resistant building components
EP2964459A4 (en) * 2013-03-05 2016-10-26 Intellectual Gorilla Gmbh Extruded gypsum-based materials
US9890083B2 (en) 2013-03-05 2018-02-13 The Intellectual Gorilla Gmbh Extruded gypsum-based materials
US9701583B2 (en) 2013-04-24 2017-07-11 The Intellectual Gorilla Gmbh Expanded lightweight aggregate made from glass or pumice
US10414692B2 (en) 2013-04-24 2019-09-17 The Intellectual Gorilla Gmbh Extruded lightweight thermal insulating cement-based materials
US10196309B2 (en) 2013-10-17 2019-02-05 The Intellectual Gorilla Gmbh High temperature lightweight thermal insulating cement and silica based materials
US10442733B2 (en) 2014-02-04 2019-10-15 The Intellectual Gorilla Gmbh Lightweight thermal insulating cement based materials
US10538459B2 (en) 2015-06-05 2020-01-21 The Intellectual Gorilla Gmbh Extruded cement based materials

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee