Composite article

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B - Operations, Transporting

32

B

B32B 27/28 (2006.01) B29C 35/00 (2006.01) B29C 41/08 (2006.01) B29C 41/22 (2006.01) B32B 27/08 (2006.01) B32B 27/16 (2006.01)

Patent

CA 2581790

A puncture resistant composite article includes a first layer having a specific gravity of from 0.9 to 1.15 g/ml and formed from an elastomeric urethane composition including the cured reaction product of an isocyanate component and a resin composition including polytetrahydrofuran. The composite article also includes a second layer disposed on the first layer. A method of forming the composite article includes the step of spraying the isocyanate component and the particular resin composition into a mold cavity in a conical spray pattern or a substantially planar spray pattern. The method also includes the steps of reacting the isocyanate component and the resin composition to form the elastomeric urethane composition, curing the elastomeric urethane composition to form the first layer, applying a urethane composition into the mold cavity, curing the urethane composition to form the second layer and the composite article, and de-molding the composite article.

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