EP3230228 (A1)

Method for manufacturing cement

(22) 04.12.2015

(43) 18.10.2017

(57) Summary of the corresponding patent WO2016091740 (A1): A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with heat in-situ during manufacture of cement. A method of manufacturing cement includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with heat proximate to and/or during said manufacturing of cement to create expanded polymeric microspheres; (ii) optionally pre-wetting the expanded polymeric microspheres; and (iii) mixing the expanded polymeric microspheres with cement.

(71) Construction Research & Technology GmbH (DE)

Issue 6/2022 US 2022/0184848 A1

Pretreatment mixing and stirring device, gypsum slurry manufacturing apparatus, building board manufacturing apparatus, pretreatment calcined gypsum manufacturing method, gypsum slurry manufacturing method, building board manufacturing method

(22) 14.04.2020 (43) 16.06.2022 (57) A pretreatment mixing and stirring device, arranged at a stage prior to a slurry formation mixing and stirring device which forms a gypsum slurry by kneading a...

Issue 11/2017 US 2017/0182456 A1

Method for manufacturing cement

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