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US 9,398,985 B2Granted
Prestrained stretched laminates
AssigneeThe Procter & Gamble Company
InventorsFrederick Michael Langdon, Fred Naval Desai
Life of this patent
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Abstract
Stretched laminates with prestrained elastics.
Claims18
A process for making a prestrained stretched laminate, comprising:
- prestraining at least one elongate elastic element at least 10% in a primary direction to form a prestrained elongate elastic element;
- attaching the prestrained elongate elastic element, while the elongate elastic element is prestrained, to an inelastic layer to form a precursor laminate;
- and
- extending the precursor laminate at least 35% in the primary direction to form the prestrained stretched laminate, wherein the inelastic layer of the precursor laminate is extended inelastically.
1 more element
A process for making a prestrained stretched laminate, comprising:
- prestraining at least one elongate elastic element at least 10% in a primary direction to form a prestrained elongate elastic element;
- attaching the prestrained elongate elastic element, while the elongate elastic element is prestrained, to a first inelastic layer and a second inelastic layer to form a precursor laminate;
- and
- extending the precursor laminate at least 35% in the primary direction to form the prestrained stretched laminate, wherein the first inelastic layer and the second inelastic layer of the precursor laminate are extended inelastically.
1 more element
Dependencies are inferred from the claim text.