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US 2002/0119323 A1Published application
Compressible polyurethane layer and process for the preparation therof
OwnerJohann Weinertinventor
Life of this patent
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Abstract
The compressible polyurethane layer having outer and inner surfaces on or for rotation-symmetrical bodies consists of polyurethane and contains expanded and/or non-expanded, but expandable thermoplastic hollow spheres.
Claims7
A compressible polyurethane layer having outer and inner surfaces on or for rotation-symmetrical bodies, characterized in that said polyurethane layer contains expanded and/or non-expanded but expandable thermoplastic hollow spheres.
Dependencies are inferred from the claim text.