×

Skin-activated temperature-sensitive adhesive assemblies

  • US 5,156,911 A
  • Filed: 05/11/1989
  • Issued: 10/20/1992
  • Est. Priority Date: 05/11/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A temperature-sensitive adhesive assembly for application to the skin, comprising a body member having a surface coated with a polymeric adhesive composition which is substantially nontacky at or below about 25°

  • C. and which becomes tacky upon contact with the skin, wherein the adhesive composition comprises a side-chain crystallizable polymer having a heat of fusion that is greater than about 20 Joules/g, and a melting point or first-order transition temperature in the range of about 20°

    C. to 35°

    C., and wherein the side-chain crystallizable polymer contains at least about 50% monomer units of the structure ##STR3## wherein M is a backbone atom and --S--C is a side-chain in which S is a spacer unit and C is a crystallizable group, and wherein the length of the side-chain is greater than five times the distance between adjacent side-chains in the polymer, and wherein the body member is a flexible backing, a cast, a splint, a transdermal drug delivery device, a bandaid, a medicated bandaid, a surgical dressing, or an EKG electrode.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×