Appeal No. 2006-0574
Application No. 09/878,405
agents (Brief, page 8). Further details of the invention may be discerned from
illustrative independent claims 55 and 62, reproduced below:
55. A process for producing tyres for vehicle wheels, the process
comprising the steps of:
making a raw tyre comprising at least one crosslinkable elastometric
material; molding the raw tyre in a molding cavity defined in a vulcanization mold;
and crosslinking the elastometric material by heating the tyre to a predetermined
temperature for a predetermined time;
wherein the raw tyre comprises at least one crosslinkable elastometric
material comprising an elastometric polymer containing epoxide groups and an
active filler containing hydroxyl groups dispersed in the elastometric polymer,
said at least one crosslinkable elastometric material has an effective degree of
crosslinking equal to at least 65% after no more than 5 minutes of heating at
170_C, and wherein the crosslinking step is carried out essentially without
additional crosslinking agents.
62. A composition comprising an elastometric polymer containing epoxide
groups and an active filler containing hydroxyl groups dispersed in the
elastometric polymer, the composition being crosslinkable essentially without
additional crosslinking agents and having an effective degree of crosslinking
equal to at least 65% after no more than 5 minutes of heating at 170_C.
2
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