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US 2018/0030224 A1Published application
Seam tape and methods of manufacture and use thereof
AssigneeCelgard, LLC
InventorsKarl F. Humiston, Kristoffer K. Stokes, Perry K. Hancock
Life of this patent
Estimating the term…
Abstract
Provided herein are seam tapes and related methods. The seam tapes can be compatible with polyolefin-based waterproof/breathable (w/b) membranes, including polypropylene (PP) w/b membranes and/or polyethylene (PE) w/b membranes. Also provided are seams sealed by means of these seam tapes, as well as materials, fabrics, and garments including one or more of these sealed seams.
Claims25
A seam tape adapted to prevent leakage through holes made in a seam during stitching, comprising:
- a microporous polyolefin film made by a dry-stretch process and including a plurality of pores having a substantially round shape,
- wherein the microporous polyolefin film exhibits a ratio of machine direction tensile strength to transverse direction tensile strength of from 0.5 to 5.0, and
- an optional adhesive disposed on one side of the microporous polyolefin film.
(canceled)
A seam tape comprising:
- a microporous polyolefin film made by a dry-stretch process and including a plurality of pores, wherein the microporous polyolefin film has a JIS Gurley of 100 seconds or less;
- and
- an optional adhesive disposed on one side of the microporous polyolefin film.
A seam tape comprising:
- a porous polymer film having a thickness of at least about 8 microns and a TD tensile strength of at least about 225 kg/cm2;
- and
- an optional adhesive disposed on one side of the microporous polyolefin film.
A seam tape comprising:
- a porous polyolefin film made by a dry-stretch process and wherein the porous polyolefin film has a melt temperature of from about 80° C. to about 175° C.;
- and
- an optional adhesive disposed on one side of the microporous polyolefin film.
Dependencies are inferred from the claim text.