Antimicrobial cements and cementitious compositions
AssigneeSciessent LLC
InventorsJoseph J. Crudden, Joseph V. Lazzaro, Edward K. Welch
Life of this patent
Estimating the term…
Abstract
Efficient antimicrobial additives are provided comprising a wettable, cake-forming inorganic material having dispersed therein an inorganic or organometallic antimicrobial agent capable of releasing antimicrobial metal ions. These antimicrobial additives are especially effective for use in cements, mortars and cementitious compositions.
Claims34
An antimicrobial additive comprising a wettable, caked inorganic material having dispersed therein an inorganic or organometallic antimicrobial agent capable of releasing antimicrobial metal ions in the presence of water in an antimicrobially effective amount, said antimicrobial additive being in the form of discrete particles.
A method of making an antimicrobial additive said method comprising the steps of:
- i) forming a slurry of an antimicrobial agent and an inorganic wettable cake forming composition;
- ii) allowing the composition to cure or harden to form a cake;
- iii) breaking, crushing and/or grinding the cake to form discrete particles thereof.
Antimicrobial compositions comprising a cement, a mortar, a cementitious composition or a hybrid cementitious composition and an antimicrobial additive said antimicrobial additive comprising discrete particles of a wettable, caked inorganic material having dispersed therein an inorganic antimicrobial agent capable of releasing antimicrobial metal ions in the presence of water in an antimicrobially effective amount.
Dependencies are inferred from the claim text.