Coating processes – Particles – flakes – or granules coated or encapsulated – Applying superposed diverse coatings or coating a coated base
Reexamination Certificate
2005-05-03
2005-05-03
Jackson, Monique R. (Department: 1773)
Coating processes
Particles, flakes, or granules coated or encapsulated
Applying superposed diverse coatings or coating a coated base
C427S215000, C427S220000, C428S402000, C428S403000, C428S404000, C428S407000
Reexamination Certificate
active
06887517
ABSTRACT:
A new class of surface modified particles and a multi-step Michael-type addition surface modification process for the preparation of the same is provided. The multi-step Michael-type addition surface modification process involves two or more reactions to compatibilize particles with various host systems and/or to provide the particles with particular chemical reactivities. The initial step comprises the attachment of a small organic compound to the surface of the inorganic particle. The subsequent steps attach additional compounds to the previously attached organic compounds through reactive organic linking groups. Specifically, these reactive groups are activated carbon—carbon pi bonds and carbon and non-carbon nucleophiles that react via Michael or Michael-type additions.
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Cook Ronald Lee
Elliott Brian John
Luebben Silvia DeVito
Myers Andrew William
Smith Bryan Matthew
Greenlee Winner and Sullivan P.C.
Jackson Monique R.
TDA Research
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