Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2011-04-05
2011-04-05
Gonzalez, Porfirio Nazario (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C526S192000
Reexamination Certificate
active
07919641
ABSTRACT:
A method for the in-situ preparation of an ionic comonomer, such as zinc dimethacrylate, dissolved in styrene monomer, for use in production of polystyrene is disclosed. The method generally includes adding comonomer chemical precursors to a solution of styrene and nonionic surfactant. The resulting ionic comonomer may be further dissolved in styrene and polymerized to form a product that may have improved properties.
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Ellis Billy
Khabashesku Olga
Fina Technology, Inc.
Gonzalez Porfirio Nazario
Misley Bradley A.
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