Oil-tolerant reinforcement strip
Assignee3M Innovative Properties Company
InventorsCharles E. Boyer, III, Robert J. Kinney, Ramsis Gobran, Ruben E. Velasquez Urey, Roland R. Midgley
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Abstract
A diaper construction is provided with an external porous reinforcement strip at the front part of the outside of the diaper, which strip provides reinforcement against an adhesive fastening tab and provides an oil contamination tolerant adhesion surface.
Claims8
A disposable garment is provided with a thin liquid-impermeable sheet material and a pressure-sensitive adhesive closure system having at least one attachment region on the thin sheet material having an outer surface and a pressure-sensitive adhesive fastening tab having a free end to adhere to said at least one attachment region outer surface and a second opposite end permanently attached to a first edge region of the garment, said at least one attachment region provided adjacent a second edge region of said garment and having a polyolefin outer surface, said free end pressure-sensitive adhesive comprising:
- 100 parts of a block copolymer elastomer formed of polyisoprene and polystyrene blocks with at least 40 percent by weight polyisoprene-polystyrene di-block copolymer said elastomer having a total percent styrene content of at least 13 percent;
- 30 to 200 parts of an isoprene block compatible solid tackifier;
- and
- 0 to 15 percent by weight of a liquid resin or plasticizing oil,
- wherein when said free end pressure-sensitive adhesive is applied to said at least one attachment region, the pressure-sensitive adhesive fastening tab is capable of providing a 135 degree peel using a 100 gm rolldown of at least 30 N/m, with the attachment region having from 0 to 0.12 mg/cm2 of mineral oil on its polyolefin outer face.
Dependencies are inferred from the claim text.