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1. (WO2019024971) IMPROVEMENT OF STUCCO PROPERTIES THROUGH AGING AT ELEVATED TEMPERATURES AND HIGH HUMIDITY LEVEL
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Pub. No.: WO/2019/024971 International Application No.: PCT/EP2017/000946
Publication Date: 07.02.2019 International Filing Date: 04.08.2017
IPC:
C04B 28/14 (2006.01) ,C04B 11/00 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28
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
14
containing calcium sulfate cements
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
11
Calcium sulfate cements
Applicants:
KNAUF GIPS KG [DE/DE]; Am Bahnhof 7 97346 Iphofen, DE
Inventors:
DIETZ, Stephan; DE
HARTMANN, Alexander; DE
FRASER, Thomas; AU
BAIER, Manfred; DE
FÖRTHNER, Sebastian; DE
KARAKOUSSIS, Stergios; DE
PARASKOV, Georgi; DE
SCHNEIDERBANGER, Reiner; DE
Priority Data:
Title (EN) IMPROVEMENT OF STUCCO PROPERTIES THROUGH AGING AT ELEVATED TEMPERATURES AND HIGH HUMIDITY LEVEL
(FR) AMÉLIORATION DES PROPRIÉTÉS DU STUC PAR VIEILLISSEMENT À DES TEMPÉRATURES ÉLEVÉES ET À UN NIVEAU D'HUMIDITÉ ÉLEVÉ
Abstract:
(EN) The invention pertains to a method for stabilizing stucco wherein - a fresh stucco is provided; - water is added to the fresh stucco to obtain moistened stucco, and - the moistened stucco is maintained at a temperature of at least 30 °C for a time interval of at least 30 minutes to obtain a stabilized stucco. The process allows inter alia for an easy adjustment of the activity of the stabilized stucco, which is useful to e.g. adjust setting time of a corresponding stucco slurry. The invention further pertains to a method for producing gypsum plasterboards, wherein a stabilized stucco obtained with the above method is used.
(FR) L'invention concerne un procédé de stabilisation de stuc dans lequel - un stuc frais est fourni ; - de l'eau est ajoutée au stuc frais pour obtenir du stuc humidifié, et - le stuc humidifié est maintenu à une température d'au moins 30 °C pendant une durée d'au moins 30 minutes pour obtenir un stuc stabilisé. Le procédé permet, entre autres, un réglage facile de l'activité du stuc stabilisé, qui est utile pour régler, par exemple, le temps de prise d'une suspension de stuc correspondante. L'invention concerne en outre un procédé de production de plaques de plâtre, un stuc stabilisé obtenu à l'aide du procédé ci-dessus étant utilisé.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)