Patents Represented by Attorney, Agent or Law Firm Carolyn A. Peters
  • Method of forming a thermoplastic layer on a layer of adhesive
    Patent number: 6355309
    Abstract: A method of forming a thermoplastic layer on an adhesive layer is provided. In the steps of the method, a thermoplastic powder is provided having a melt flow index of at least about 0.008 grams/10 minutes, the powder is applied to at least one surface of the adhesive layer to form a particle layer, and the combination is then subjected to elevated heat and pressure until particle layer is fused into a continuous layer and the continuous layer is bonded to the adhesive layer.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: March 12, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Danny L. Fleming, Ernest M. Rinehart