US 2019/0284095 A1

Copolymer for use as cement additive and method of preparation thereof

(22) 15.05.2017

(43) 19.09.2019

(57) This application relates to a polymer that is useful as a cement additive, wherein the polymer is produced by copolymerisation of an olefinic mono-carboxylic acid or salt thereof, an acrylamide sulfonic acid or salt thereof, and an allylic sulfonic acid or salt thereof. The application also relates to a method of making such a polymer, a composition comprising such a polymer and cement or a cementitious slurry, use of such a polymer as an additive to a cementitious material, and a cementitious material comprising such a polymer.

(71) Devine Chemicals Limited, Leadgate, Consett (GB)

(73) Devine Chemicals Limited, Leadgate, Consett (GB)


Related articles:

Issue 2019-7-8 US 2019/0127277 A1

Cement additive composition comprising polycarboxylic acid-based copolymer

(22) 08.12.2017 (43) 02.05.2019 (57) The present disclosure relates to a cement additive composition including a polycarboxylic acid-based copolymer. When the cement additive composition of the...

Issue 2019-11 WO 2019/157593 A1

Desert sand and filamentous cellulose in concrete and mortar

(22) 12.02.2019 (43) 22.08.2019 (57) The present provides a concrete and mortar mix and composition thereof with poor quality sand such as desert sand, hydraulic binder (cement) and filamentous...

Issue 2016-3 US 2016/0024307 A1

Use of polycarboxylate ethers in combination with other additives for milling cement

(22) 06.03.2014 (43) 28.01.2016 (57) Use of an aqueous composition containing at least one poly­carboxylate ether as cement grinding aid, wherein the aque­ous composition contains one or more...

Issue 2019-4 SG10201810950T (A)

Cement compound and a method for the production thereof

(22) 05.06.2015 (43) 30.01.2019 (57) The present invention relates to a cement compound. The invention also relates to a method for producing such a cement compound. More in particular, the present...

Issue 2020-3 WO 2019/232195 A1

Flue gas desul- furization system and method for perfor­ming flue gas desulfurization

(22) 30.05.2019 (43) 05.12.2019 (57) A flue gas desulfurization (FGD) system in which a buffering additive feed directly adds a buffering additive containing acetic acid to either the FGD sump or a...