Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Reexamination Certificate
2007-10-30
2007-10-30
Sergent, Rabon (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
C521S108000, C521S155000, C521S168000, C521S169000, C521S170000, C521S906000
Reexamination Certificate
active
09392434
ABSTRACT:
A polyurethane foam can be flame retarded by the incorporation therein of a flame retardant blend that comprises: (a) a non-oligomeric non-halogenated organophosphorus flame retardant (e.g., a phosphate ester) that is adapted for use in a polyurethane foam formulation; and (b) an oligomeric organophosphorus flame retardant (e.g., a phosphate ester) having a phosphorus content of no less than about 10%, by weight, and at least three phosphate ester units therein.
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Bradford Larry L.
Halchak Theodore
Pinzoni Emanuel
Williams Barbara A.
Dilworth & Barrese LLP
Sergent Rabon
Supresta U.S. LLC
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