IE39929L - Gypsum article - Google Patents

Gypsum article

Info

Publication number
IE39929L
IE39929L IE742048A IE204874A IE39929L IE 39929 L IE39929 L IE 39929L IE 742048 A IE742048 A IE 742048A IE 204874 A IE204874 A IE 204874A IE 39929 L IE39929 L IE 39929L
Authority
IE
Ireland
Prior art keywords
gypsum
plaster
gallic acid
oct
articles
Prior art date
Application number
IE742048A
Other versions
IE39929B1 (en
Original Assignee
Bpb Industries Ltd
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 Bpb Industries Ltd filed Critical Bpb Industries Ltd
Publication of IE39929L publication Critical patent/IE39929L/en
Publication of IE39929B1 publication Critical patent/IE39929B1/en

Links

Classifications

    • 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
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
    • C04B24/06—Carboxylic acids; Salts, anhydrides or esters thereof containing hydroxy groups
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions 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
    • 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
    • C04B2111/00094—Sag-resistant materials
    • 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
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C04B2111/0062—Gypsum-paper board like materials

Abstract

1481788 Gypsum BPB INDUSTRIES Ltd 8 Oct 1974 [25 Oct 1973] 49749/73 Heading C1A [Also in Division E1] The tendency of gypsum articles to sag in damp conditions is reduced by incorporating gallic acid (preferably in a proportion of 0À01 to 0À04 wt. per cent of the gypsum, calculated as calcium sulphate hemihydrate). The gallic acid may be added to the gypsum plaster, or gypsum and gallic acid may be mixed and then calcined to form a plaster; in either case, the plaster is then mixed with water and the articles are shaped in conventional manner. [GB1481788A]
IE2048/74A 1973-10-25 1974-10-03 Production of shaped gypsum articles IE39929B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB49749/73A GB1481788A (en) 1973-10-25 1973-10-25 Production of shaped gypsum articles

Publications (2)

Publication Number Publication Date
IE39929L true IE39929L (en) 1975-04-25
IE39929B1 IE39929B1 (en) 1979-01-31

Family

ID=10453416

Family Applications (1)

Application Number Title Priority Date Filing Date
IE2048/74A IE39929B1 (en) 1973-10-25 1974-10-03 Production of shaped gypsum articles

Country Status (10)

Country Link
BE (1) BE821360A (en)
CA (1) CA1021808A (en)
DE (1) DE2450366C3 (en)
DK (1) DK558374A (en)
FR (1) FR2249045B1 (en)
GB (1) GB1481788A (en)
IE (1) IE39929B1 (en)
NO (1) NO138694C (en)
SE (1) SE394418B (en)
ZA (2) ZA746401B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6409824B1 (en) * 2000-04-25 2002-06-25 United States Gypsum Company Gypsum compositions with enhanced resistance to permanent deformation
FR2925484A1 (en) * 2007-12-21 2009-06-26 Lafarge Sa Use of at least one 3,4,5-trihydroxy-benzoic acid methyl ester compounds as an additive for hydraulic binder, mortar or concrete, where the hydraulic binder is useful e.g. for the fabrication of elements or materials in construction
EP2679613A1 (en) * 2012-06-26 2014-01-01 Construction Research & Technology GmbH Sound-resistant additive for construction products
UA109836C2 (en) * 2012-12-03 2015-10-12 SUSTAINABLE Gypsum product and method of its manufacture
UA110269C2 (en) 2012-12-03 2015-12-10 Saint Gobain Placo Chemical additives for gypsum products
PL3303251T3 (en) 2015-05-26 2020-11-16 Etex Building Performance International Sas Method for making a gypsum board
KR101859323B1 (en) * 2017-03-23 2018-05-18 주식회사 케이씨씨 Anti-sagging gypsum board composition
CN108129118A (en) * 2017-12-28 2018-06-08 应城市嘉鸿技术服务科技有限公司 A kind of gypsum slurry and the anti-deformation plastering prepared by the gypsum slurry

Also Published As

Publication number Publication date
NO138694B (en) 1978-07-17
SE394418B (en) 1977-06-27
GB1481788A (en) 1977-08-03
CA1021808A (en) 1977-11-29
DE2450366C3 (en) 1979-05-03
NO743818L (en) 1975-05-20
DE2450366B2 (en) 1977-04-28
SE7413222L (en) 1975-04-26
DK558374A (en) 1975-06-16
DE2450366A1 (en) 1975-04-30
BE821360A (en) 1975-02-17
FR2249045B1 (en) 1981-08-21
NO138694C (en) 1978-10-25
IE39929B1 (en) 1979-01-31
FR2249045A1 (en) 1975-05-23
ZA746401B (en) 1975-10-29
ZA746474B (en) 1975-10-29

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