Methods for the manufacture of colorfast masonry

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United States of America Patent

PATENT NO 10717674
APP PUB NO 20170190617A1
SERIAL NO

15455689

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Abstract

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The invention is directed to compositions and methods for the manufacture of pigmented solids structures for which can be used for construction and/or decoration. Manufacturing comprises fixing one or more pigments to an aggregate material such as crushed rock, stone or sand. The pigmented aggregate is incubated with urease or urease producing microorganisms, an amount of a nitrogen source such as urea, and an amount of calcium source such as calcium chloride forming calcite bridges between particles of aggregate. The resulting solid has a hardness and colorfastness for most any construction material. Using selected aggregate and pigment, the process also provides for the manufacture of simulated-stone materials such as clay or granite bricks or blocks, marble counter-tops, and more. The invention is also directed to composition containing microorganisms and pigment as kits that can be added to most any aggregate materials.

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Patent Owner(s)

Patent OwnerAddress
BIOMASON INC2 TRIANGLE DRIVE DURHAM NC 27709

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dosier, Ginger K Raleigh, US 25 163
Dosier, J Michael Raleigh, US 19 83
Hill, Thomas A Dacula, US 9 68
McAllister, Steven W Durham, US 10 62

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