Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2008-05-06
2008-05-06
Gulakowski, Randy (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S736000, C525S418000, C526S320000, C526S328000
Reexamination Certificate
active
07368501
ABSTRACT:
Disclosed is a method of making an environmentally durable material, the method requiring providing a material comprising at least one functional group Fc, and subjecting the material to a free radical source such that substantially all functional groups Fcare eliminated but the material is not polymerized. In one embodiment, the functional group Fcis at least one of a nonaromatic carbon-carbon double bond, a hydrogen atom alpha to an aromatic ring, a hydrogen atom alpha to a carbon-carbon double bond, or a hydrogen atom attached to a tertiary substituted carbon. In another embodiment, functional group Fcis present in the material as a contaminant. In one exemplary embodiment, the material comprises from 0.05 to less than 15% by weight of functional group Fc, based on the total weight of the material.
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Green Marvin L.
Menovcik Gregory G.
Ohrbom Walter H.
BASF Corporation
Bernshteyn M.
Gulakowski Randy
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