Press pad
AssigneeMarathon Belting Limited
InventorsMelvyn Douglas, Peter Boyes, John Lynn Payne
Life of this patent
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Abstract
A press pad for use in a laminating press comprises a woven fabric of heat resistant strands. A substantial proportion of either the warp (B) or the weft (A) comprises a silicone elastomer. Preferably, the silicone elastomer has a specific gravity within the range of 1.1 g/cm.sup.3 to 1.4 g/cm.sup.3 inclusive but advantageously, the silicone elastomer has a specific gravity of 1.20.+-.0.02 g/cm.sup.3. In preferred embodiments the weft (A) comprises silicone covered copper wire whilst the warp (B) comprises at least one of stainless steel wires, copper wires, copper alloy wires, copper wires wrapped with an aromatic polyamide yarn, stainless steel wires wrapped with an aromatic polyamide yarn, aromatic polyamide yarn, and polyester yarn.
Claims14
A press pad for use in a laminate press and which can withstand pressures ranging between 20 to 120 kg per cm.sup.2 inclusive and temperatures of up to 220.degree. C. comprising:
- a fabric woven of from heat resistant warp and weft strands, said strands including metal wire strands, at least one of the warp and weft strands comprises a silicone elastomer.
Dependencies are inferred from the claim text.