2 TWO COMPONENT SYNTHETIC WATER RETENTION AGENT AND RHEOLOGY MODIFIER FOR USE IN CEMENTS MORTARS AND PLASTERS

摘要

The present invention relates to a composition comprising i) a nonionic or substantially nonionic vinyl or acrylic brush polymer having a pendant or branched polyether group and a relative weight average molecular weight of 140,000 to 50,000,000 g / mol, and ii) Aromatic cofactors such as catechol tannin, phenolic resins, polyphenolic materials, and naphthols, or aromatic cofactors containing at least one phenolic group together with at least one aromatic group having at least one sulfuric acid group, such as naphthalene sulfo A cement comprising a branched co-factor comprising a poly (styrene-co-styrene sulfonate) copolymer, and a lignin sulfonate, preferably a phenolic resin, an aldehyde condensate polymer and a lignin sulfonate, Compositions useful as alternatives to cellulose ethers in plaster or mortar compositions It provides. The composition may comprise a dry powder blend of i) and ii), one dry powder of both i) and ii), or an aqueous mixture.