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)

Issue 7-8/2019 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 6/2018 WO2018062583 (A1)

Polymer compound for admixture of cement composition

(22) 28.09.2016 (43) 05.04.2018 (57) Disclosed is a polycarboxylic acid-based copolymer compound formed as a result of the copolymerization of a polyalkylene glycol monoalkenyl ether monomer and an...

Issue 05/2024 US 2024/0150237 A1

Grinding stabilizing additive for vertical roller mills

(22) 01.12.2023 (43) 09.05.2024 (57) Method for grinding a solid in a vertical roller mill (VRM) and a cement composition prepared by the disclosed methods. A method comprises grinding a solid...

Issue 10/2019 US 2019/0233332 A1

Method for low-to-mid-range water reduction of cementitious compositions

(22) 29.01.2018 (43) 01.08.2019 (57) Methods for plasticizing cementitious mixtures having relatively high water/cement ratio (at least 0.40 or higher) are surprisingly improved in terms of dosage...

Issue 3/2021 US 2020/0407275 A1

Composition of a cement additive material as an additive to cementitious mineral admixtures, and utilized as latent hydraulic binders to improve the outcome of cementitious products

(22) 11.09.2020 (43) 31.12.2020 (57) A composition of a cement additive material to improve durability of cementitious structures, was disclosed. The cement additive composition includes an admixture...

ZKG 12/2019