Predominantly Aluminum Substrate Patents (Class 205/323)
Anodizing (Class 205/324)
  • Web barrier packaging material
    Patent number: 5091062
    Abstract: A metallized web of barrier packaging material e.g. metallized plastic film, is made transparent to microwaves (without loss of its barrier properties) by passing it through an electrolyte in a bath to anodize the metal and convert it to its oxide and/or hydroxide.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: February 25, 1992
    Assignee: Bowater Packaging Limited
    Inventor: Kenneth M. Revell