Stock material or miscellaneous articles – Structurally defined web or sheet – Fold at edge
Reexamination Certificate
2006-01-03
2006-01-03
Jones, Deborah (Department: 1772)
Stock material or miscellaneous articles
Structurally defined web or sheet
Fold at edge
C428S141000, C428S144000, C428S332000, C428S147000, C428S340000, C428S341000, C049S490100
Reexamination Certificate
active
06982112
ABSTRACT:
A novel laminate useful for seals particularly for vehicle window seals that are flexible, wear resistant and have a low coefficient of friction, is provided. The laminate comprises a rubber substrate and a polyolefin coating disposed on and adherent to the rubber substrate. The invention also provides novel methods of making laminates, particularly seals. Such method comprises the following steps: providing a rubber substrate; then applying a powdered crystalline polyolefin to the rubber substrate, in an amount sufficient to form a continuous layer when melted; and then melting the powdered crystalline polyolefin to form a continuous polyolefin coating disposed on, and adherent to, the rubber substrate. The invention also relates to seals comprising: an polyolefin rubber body; and a continuous coating of fused polyolefin disposed on and adherent to the rubber seal. Preferably the continuous coating of fused polyolefin is disposed in the glass run channel in the rubber body.
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Calfee Halter & Griswold LLP
GenCorp Inc.
Jones Deborah
Rhee Jane
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