Claims
- 1. A resilient, non-porous, significantly non-absorbent pressure-sensitive adhesive tape consisting essentially of a uniform substrate of open-celled, high density, flexible, resilient polyurethane foam impregnated with an impregnant consisting essentially of a cured polychloroprene elastomer that is invested throughout said substrate and a cured pressure-sensitive adhesive coated upon said substrate, said substrate having a thickness of up to 35 mils.
- 2. A tape as claimed in claim 1, wherein said foam is microcellular.
- 3. A tape as claimed in claim 1, wherein said elastomer is prepared from a latex having a viscosity of 23 centipoises to 250 centipoises.
- 4. A tape as claimed in claim 1, wherein said substrate is coated with a pressure-sensitive acrylic resin adhesive.
- 5. A tape as claimed in claim 1, wherein said foam is a polyester urethane.
- 6. A tape as claimed in claim 1, wherein the density of said foam is within the range of 20 pounds per cubic foot to 60 pounds per cubic foot.
- 7. A tape as claimed in claim 6, wherein said density is within the range of 20 pounds to 40 pounds per cubic foot.
- 8. A tape as claimed in claim 5, wherein said foam has a density of 40 pounds per cubic foot.
- 9. A resilient, non-porous, pressure-sensitive adhesive tape consisting essentially of a substrate of open-celled, flexible, resilient polyurethane foam having a density of from 25 pounds per cubic foot to 60 pounds per cubic foot impregnated with an impregnant consisting essentially of a cured polychloroprene elastomer, said substrate being coated with a cured pressure-sensitive adhesive; and having a thickness of up to 35 mils.
- 10. A tape as claimed in claim 9, wherein said cured polychloroprene elastomer is derived from a latex thereof having a viscosity of from about 23 centipoises to 250 centipoises.
- 11. A tape as claimed in claim 10, wherein said latex has a specific gravity of from 1.10 to 1.12 and a solids content by weight of 50 percent to 60 percent.
- 12. A tape as claimed in claim 11, wherein the chloroprene polymer of said latex has a specific gravity of 1.23.
- 13. A tape as claimed in claim 10, wherein said polyurethane has a density of about 40 pounds per cubic foot.
Parent Case Info
This application is a continuation-in-part of copending application Ser. No. 357,626 filed May 7, 1973 by the applicant herein and now abandoned.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
357626 |
May 1973 |
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