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US 2011/0253289 A1Published application
Methods of forming composite materials
AssigneeVelcro Industries B.V.
InventorWilliam H. Shepard
Life of this patent
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Abstract
A method of forming a substantially air-impermeable composite material includes introducing a sheet-form film and a loop material into a nip formed between a first roll and a second roll, introducing molten resin into the nip between the film and the loop material, and allowing the molten resin to cool so that the film becomes attached to the loop material by the cooled resin.
Claims24
A method of forming a composite material, the method comprising:
- introducing a sheet-form film and a hook-engageable material into a nip formed between a first roll and a second roll;
- introducing molten resin into the nip between the film and the hook-engageable material;
- and
- allowing the molten resin to cool so that the film becomes attached to the hook-engageable material by the cooled resin,
- wherein each of the film, the hook-engageable material, and the molten resin includes at least about 85 percent by weight of a first polymer.
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A method of forming a composite material, the method comprising:
- introducing a sheet-form film and a hook-engageable material into a nip formed between a first roll and a second roll;
- introducing molten resin into the nip between the film and the hook-engageable material;
- and
- allowing the molten resin to cool so that the film becomes attached to the hook-engageable material by the cooled resin,
- wherein each of the film, the hook-engageable material, and the molten resin includes at least about 90 percent by weight of a first polymer, the composite material is substantially air-impermeable, and fibers extending from a surface of the hook-engageable material are capable of engaging hooks of hook fasteners after the film is attached to the hook-engageable material by the cooled resin.
2 more elements
Dependencies are inferred from the claim text.