SE7413222L - - Google Patents
Info
- Publication number
- SE7413222L SE7413222L SE7413222A SE7413222A SE7413222L SE 7413222 L SE7413222 L SE 7413222L SE 7413222 A SE7413222 A SE 7413222A SE 7413222 A SE7413222 A SE 7413222A SE 7413222 L SE7413222 L SE 7413222L
- Authority
- SE
- Sweden
- Prior art keywords
- gypsum
- plaster
- gallic acid
- oct
- articles
- Prior art date
Links
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 abstract 6
- 239000010440 gypsum Substances 0.000 abstract 4
- 229910052602 gypsum Inorganic materials 0.000 abstract 4
- 229940074391 gallic acid Drugs 0.000 abstract 3
- 235000004515 gallic acid Nutrition 0.000 abstract 3
- 239000011505 plaster Substances 0.000 abstract 2
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 abstract 1
- 239000011507 gypsum plaster Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
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.
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 |
|---|---|
| SE7413222L true SE7413222L (en) | 1975-04-28 |
| SE394418B SE394418B (en) | 1977-06-27 |
Family
ID=10453416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7413222A SE394418B (en) | 1973-10-25 | 1974-10-21 | FORMAT PLASTER FORMAL AND WAY TO PRODUCE THE PLASTER FORMAL |
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)
| 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 |
| PT3303251T (en) | 2015-05-26 | 2020-06-02 | Etex Building Performance Int Sas | Gypsum boards |
| 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 |
-
1973
- 1973-10-25 GB GB49749/73A patent/GB1481788A/en not_active Expired
-
1974
- 1974-10-03 IE IE2048/74A patent/IE39929B1/en unknown
- 1974-10-07 CA CA210,884A patent/CA1021808A/en not_active Expired
- 1974-10-08 ZA ZA00746401A patent/ZA746401B/en unknown
- 1974-10-11 ZA ZA00746474A patent/ZA746474B/en unknown
- 1974-10-21 FR FR7435324A patent/FR2249045B1/fr not_active Expired
- 1974-10-21 SE SE7413222A patent/SE394418B/en not_active IP Right Cessation
- 1974-10-23 BE BE149775A patent/BE821360A/en not_active IP Right Cessation
- 1974-10-23 DE DE2450366A patent/DE2450366C3/en not_active Expired
- 1974-10-23 NO NO743818A patent/NO138694C/en unknown
- 1974-10-24 DK DK558374A patent/DK558374A/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2249045A1 (en) | 1975-05-23 |
| BE821360A (en) | 1975-02-17 |
| DE2450366C3 (en) | 1979-05-03 |
| NO138694C (en) | 1978-10-25 |
| IE39929B1 (en) | 1979-01-31 |
| GB1481788A (en) | 1977-08-03 |
| ZA746474B (en) | 1975-10-29 |
| DE2450366B2 (en) | 1977-04-28 |
| DK558374A (en) | 1975-06-16 |
| IE39929L (en) | 1975-04-25 |
| DE2450366A1 (en) | 1975-04-30 |
| CA1021808A (en) | 1977-11-29 |
| NO138694B (en) | 1978-07-17 |
| SE394418B (en) | 1977-06-27 |
| NO743818L (en) | 1975-05-20 |
| FR2249045B1 (en) | 1981-08-21 |
| ZA746401B (en) | 1975-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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