Variable stretch composites having one or more first elastomeric members disposed on a first region of an extensible substrate, and one or more second elastomeric members disposed on a second region of the extensible substrate which different from the first elastomeric members to provide variable properties...http://www.google.fr/patents/US7056411?utm_source=gb-gplus-shareBrevet US7056411 - Variable stretch composites and methods of making the composite
Variable stretch composites and methods of making the composite