B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 25/02 (2006.01) B26D 1/00 (2006.01) B29B 17/00 (2006.01) B29C 53/18 (2006.01) B32B 25/00 (2006.01)
Patent
CA 2353040
A process for fabricating cord-reinforced-rubber structural materials from used tires and a cord-reinforced-rubber structural material. The process includes the following steps for handling and treating the tires: removing the side walls from the tires; removing at least some of the tread material from the tire to provide an essentially uniform tread thickness; cutting the tires in a transverse direction to provide elongated strips of tire material having at least some inherent curvature; removing at least some of the inherent curvature by compressing the strips to at least about 100 psi and heating the strips to at least 200 degrees F to remove at least some of the inherent curvature; mating the strips with a gum rubber adhesive; and bonding the strips and gum rubber adhesive by compressing them to about 100 psi and heating them to at least 200 degrees F. By removing at least some of the inherent curvature the strips of rubber material are more easily handled during subsequent processing. The structural materials produced typically take the form of boards and planks, but may used for fabricating other structures such as panels, walls, and bulkheads, among other things.
Coffin Jerry D.
Coffin Joseph H.
Gowling Lafleur Henderson Llp
Tire Recycling Development Corporation
LandOfFree
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