Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing
Reexamination Certificate
2011-04-12
2011-04-12
Marcantoni, Paul (Department: 1731)
Compositions: coating or plastic
Coating or plastic compositions
Inorganic settable ingredient containing
C106S724000, C106S737000, C106S738000, C106S823000, C705S400000
Reexamination Certificate
active
07922810
ABSTRACT:
The invention relates generally to a cement or gypsum composition having improved properties, which is prepared by incorporating an enzyme into a cement material such as a cement, mortar, or concrete, or into a gypsum product. The invention also relates to methods of manufacturing improved cement compositions and gypsum products, methods of improving the compressive strength of cement compositions and gypsum products, and methods of reducing the cost of such compositions by enabling the use of less expensive aggregates in the manufacturing process. More specifically, the invention relates to a cement composition or a gypsum composition, optionally including at least one aggregate and optionally including at least one pozzolan, comprising a cement material or gypsum optionally including aggregate(s) and pozzolan(s) having blended therein an enzyme.
REFERENCES:
patent: 3414467 (1968-12-01), Ferrara
patent: 6695545 (2004-02-01), Boston
patent: 2003/0070589 (2003-04-01), Boston
Friedman Mark M.
Marcantoni Paul
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