Monoaxially elastic laminate film

Details Monoaxially elastic laminate film Monoaxially elastic laminate film

2002-11-27

2008-11-11

Tran, Thao T. (Department: 1794)

Stock material or miscellaneous articles

Composite

C428S423100, C428S424800, C428S516000, C428S523000

Reexamination Certificate

active

07449240

ABSTRACT:
A monoaxially elastic laminate film is provided with a core layer made of a thermoplastic elastomer and at least one skin layer co-extruded together with the core layer. The skin layer is made of a thermoplastic plastic with a molecular lattice that becomes brittle when it solidifies, so that the plastic stretches only slightly when a stretching force is applied, and breaks without any transition when a pre-determined tear force has been exceeded. After becoming brittle, the molecular lattice is irreversibly broken up by monoaxial stretching in the stretching direction, but is maintained perpendicular to the stretching direction, and thereby reinforces the film in the crosswise direction.

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H. Vavra (1935) “Grundlehre de Schneiderei [Principles of Tailoring]”, Verlag Otto Beyer, Leipzig, p. 47.

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