Workable cement composition of low water content containing a hydroxyalkyl (meth)acrylate polymer

US4792360A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Richard A. Pierce · Lake Jackson, US
• Tipton T. Masterson · Lake Jackson, US
• David A. Grilli · Lake Jackson, US

Key dates

• Filing date: Jun 30, 1987
• Grant date: Dec 20, 1988
• Expiry date: Jun 30, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/00525
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Cement compositions having better and longer lasting workability have been made by adding to said compositions a polymer or copolymer of a hydroxyalkyl(meth)acrylate, e.g. hydroxyethyl acrylate or methacrylate. Further improvement is achieved by adding a water reducer, e.g. sulfonated polystyrene, and an antifoam agent, e.g. a polyalkylenepolyol.