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 Saint Gobain PlacofiledCriticalSaint Gobain Placo
Priority to MYPI2014700519ApriorityCriticalpatent/MY171933A/en
Priority claimed from PCT/CN2012/085749external-prioritypatent/WO2014085962A1/en
Publication of MY171933ApublicationCriticalpatent/MY171933A/en
Curing Cements, Concrete, And Artificial Stone
(AREA)
Abstract
The present invention provides a composition, a gypsum board and their preparation method and the use of ascorbic acid as an anti-sagging additive in a gypsum board. Said gypsum board comprises set gypsum prepared from the composition; while said composition comprises hemi-hydrate gypsum, water and a compound comprising ? ?group and no carboxylate groups. The set gypsum prepared from the said composition shows better anti-sagging or deformation resisting property. The gypsum board of the present invention is hardly distorted and has stronger stability even in the condition of high humidity, thus improve the quality of the gypsum board to meet the demands of the customer.
MYPI2014700519A2012-12-032012-12-03Anti-sagging gypsum product and a method to manufacture
MY171933A
(en)