Accelerator for gypsum plaster and process of manufacture

Details Accelerator for gypsum plaster and process of manufacture Accelerator for gypsum plaster and process of manufacture

C - Chemistry, Metallurgy

04

B

261/85

C04B 22/14 (2006.01) C04B 20/10 (2006.01) C04B 28/14 (2006.01)

Patent

CA 1247153

ACCELERATOR FOR GYPSUM PLASTER AND PROCESS OF MANUFACTURE Abstract of the Disclosure A setting accelerator for calcined gypsum plaster and a process for its preparation are disclosed. The accelerator comprises finely ground calcium sulfate dihydrate having compo- site coatings on the particles of firstly a calcination inhibiting material such as sugar and secondly a coating of aluminum sulfate hydrate. The accelerator is particularly useful in the formation of gypsum wallboard.

518868

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