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
2005-04-05
2005-04-05
Robertson, Jeffrey (Department: 1712)
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...
C525S134000, C525S135000, C525S139000, C525S141000, C525S142000, C525S144000, C525S151000, C525S480000, C525S504000, C525S505000, C525S132000, C524S506000, C524S508000, C528S029000, C528S129000, C528S155000
Reexamination Certificate
active
06875807
ABSTRACT:
A silane-modified phenolic resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an aldehyde to produce a phenolic novolak resin. The phenolic novolak resin is further reacted with at least one silane compound to produce the silane-modified phenolic resin. The reaction is typically carried out in the presence of an acid or base catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.
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Durairaj Raj B.
Lawrence Mark A.
Walkup C. Michael
Indspec Chemical Corporation
Jones Day
Robertson Jeffrey
Zimmer Marc S.
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