Stock material or miscellaneous articles – Composite – Of polycarbonate
Reexamination Certificate
2003-02-21
2008-08-12
Tran, Thao (Department: 1794)
Stock material or miscellaneous articles
Composite
Of polycarbonate
C428S423100, C264S176100, C264S219000
Reexamination Certificate
active
07410700
ABSTRACT:
Disclosed are weatherable multilayer articles comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one aromatic dicarboxylic acid, (ii) a second layer comprising a polymer comprising carbonate structural units, (iii) an adhesive layer comprising a polyurethane, and (iv) a substrate layer, wherein the coating layer is in contiguous superposed contact with the second layer, and the adhesive layer is in contiguous contact with the second layer and the substrate layer. Also disclosed is a method for making the multilayer article.
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Cantor & Colburn LLP
Sabic Innovative Plastic IP B.V.
Tran Thao
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