Coating apparatus – Projection or spray type
Reexamination Certificate
2006-06-20
2006-06-20
Fiorilla, Chris (Department: 1734)
Coating apparatus
Projection or spray type
C222S145500
Reexamination Certificate
active
07063745
ABSTRACT:
A kit for forming a multi-component coating formulation for application using a hand-held spraying apparatus to produce a finished coating on a surface comprises a first and a second container holding respective first and second components of a multi-component coating formulation. The kit also includes at least one dispenser in the form a generally tubular body member having a closure at both a first and a second end thereof. The dispenser holds a predetermined volume of a polymerization catalyst solution having “w” weight percent of catalyst therein.The dispenser has a predetermined cross sectional area “a” given by the relationship:in-line-formulae description="In-line Formulae" end="lead"?a≅P·A·[W/w]·10−6,in-line-formulae description="In-line Formulae" end="tail"?where“A” is the cross sectional area of the reservoir holding a liquid coating formulation having “W” weight percent of solids; andP is the ratio by weight of the catalyst to the solids desired in the finished coating, in parts per million.
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E.I. duPont de Nemours and Company
Fiorilla Chris
Medwick George M.
Tadesse Yewebdar
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