U.S. patents available from 1976 to present.
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Articles of barrier webs

Patent 5856245 Issued on January 5, 1999. Estimated Expiration Date: Icon_subject January 5, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Inventors

Assignee

Application

No. 479919 filed on 06/07/1995

US Classes:

442/76, Coating or impregnation specified as porous or permeable to a specific substance (e.g., water vapor, air, etc.)128/849, Drapes128/888, Wound shields (e.g., vaccination)424/404, Antifungal or antibacterial442/79, Coating or impregnation specified as water repellent442/123, Coating or impregnation functions biologically (e.g., insect repellent, antiseptic, insecticide, bactericide, etc.)442/152, Coated or impregnated natural fiber fabric (e.g., cotton, wool, silk, linen, etc.)442/153, Coated or impregnated cellulosic fiber fabric442/164, Coated or impregnated synthetic organic fiber fabric602/48, Wound contact layer containing treatment material602/50, Amino acid, polypeptide, or protein604/372, Synthetic resin604/374, Cellulose or cellulosic materials604/377Cotton or derivative thereof

Examiners

Primary: Raimund, Christopher

Attorney, Agent or Firm

Foreign Patent References

  • 57-149559 JP. 09/24/1982
  • 422469 RU. 09/24/1974
  • 89/08553 WO. 09/24/1989
  • 89/08554 WO. 09/24/1989
  • 89/08555 WO. 09/24/1989

International Class

A61F 013/00

Abstract

A barrier web comprising a fabric that has been treated with a curable shear thinned thixotropic polymer composition, the fabric being adapted to be substantially impermeable to liquids, permeable to gases and impermeable to microorganisms. The barrier webs of the present invention are either impermeable to all microorganisms or are impermeable to microorganisms of certain sizes. The present invention also includes fabrics that are capable of either selectively binding certain microorganisms, particles or molecules depending upon what binding partners are incorporated into the polymer before application to the fabric.

Other References

  • Owen, M.J., "The Surface Activity of Silicones: A Short Review", Ind. Eng. Chem. Prod. Res. Dev. vol. 19, p. 97 (1980)
  • "Silicones", Encyl. of Polymer Sci. and Engineering, 2nd ed., Wiley, New York, v. 15 (1985-90)
  • Floyd, D.T., "Organo-Modified Silicone Copolymers for Cosmetic Use", Cosmetic and Pharmaceutical Applications of Polymers, pp. 49-72, Plenum Press (New York) (1991)
  • Caldwell et al., "Vapor-Permeable, Water-Resistant Fabrics," American Dyestuff Reporter, No. 3, pp. 25-29 (Jan. 30, 1967)
  • "Uvinul: UV Inhibitors for Cosmetics, Plastics, Coatings and Textiles," BASF Corp., Rensselaer, N.Y
  • "ProNectin™F" brochure, Protein Polymer Technologies, Inc. (1991
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