Degradable breathable multilayer film with improved...

Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...

Reexamination Certificate

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C604S385101, C604S367000, C604S365000, C604S370000, C604S368000, C442S362000, C442S392000, C442S361000, C442S334000, C428S182000, C428S184000

Reexamination Certificate

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07619132

ABSTRACT:
A multilayer film includes a plastic layer and an elastomeric layer. The plastic layer can contain a co-polyester of terepthalic acid, adipic acid and butanediol, and the elastomeric layer can contain a polyurethane elastomer. The plastic layer and/or the elastomeric layer can contain filler particles, and may be present as a bilayer laminate. The plastic layer and a filled elastomeric layer can also be combined with an unfilled elastomeric layer to form a tri-layer laminate. The multilayer films can provide breathable films with improved degradability, stretchability and recoverability, and tactile feel.

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