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US 6,270,910 B1Granted
Anisotropic film
Assignee3M Innovative Properties Company
InventorsJobst Tilman Jaeger, Alan J. Sipinen
Life of this patent
Estimating the term…
Abstract
Described are anisotropic films comprising a continuous elastic phase comprising a polyolefin elastomer; and a discontinuous phase oriented within the continuous phase such that the film exhibits anisotropic properties.
Claims14
An anisotropic film comprising:
- a continuous elastic phase comprising a polyolefin elastomer having a density of less than 0.90 grams per cubic centimeter, and
- a discontinuous phase oriented within the continuous phase such that the film exhibits anisotropic elastic properties;
- wherein the discontinuous phase comprises fiber regions within the continuous phase, which fiber regions are oriented in a substantially parallel direction and the film is elastic in a cross-direction to the direction of the fiber regions orientation such that the film in this cross-direction has a 50 percent permanent set value of less than 20 percent.
An anisotropic elastic film laminate comprising:
- an anisotropic film comprising a continuous elastic phase comprising a polyolefin elastomer having a density of less than 0.90 grams per cubic centimeter and a discontinuous phase oriented within the continuous phase such that the anisotropic film exhibits anisotropic elastic properties and wherein the discontinuous phase comprises fiber regions within the continuous phase, which fiber regions are oriented in a substantially parallel direction and the anisotropic film is elastic in a cross-direction to the direction of the fiber regions orientation such that the anisotropic film in this cross-direction has a 50 percent permanent set value of less than 20 percent and
- a laminate layer laminated to the anisotropic layer.
A personal use garment comprising an anisotropic film comprising:
- a continuous elastic phase comprising a polyolefin elastomer having a density of less than 0.90 grams per cubic centimeter and
- a discontinuous phase oriented within the continuous phase such that the anisotropic film exhibits anisotropic elastic properties and wherein the discontinuous phase comprises fiber regions within the continuous phase, which fiber regions are oriented in a substantially parallel direction and the anisotropic film is elastic in a cross-direction to the direction of the fiber regions orientation such that the anisotropic film in this cross-direction has a 50 percent permanent set value of less than 20 percent.
Dependencies are inferred from the claim text.