Patents by Inventor David J. Olsen

David J. Olsen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PVC food wrap formed from dioctyl terphthalate plasticizer, method of forming same and method of wrapping food therewith
    Patent number: 6675560
    Abstract: A food wrap formed from polyvinyl chloride, at least one stabilizer, and a plasticizer in an amount of 10-60 parts per hundred parts polyvinyl chloride. The plasticizer may be present in an amount of 30-55 parts per hundred parts polyvinyl chloride. The plasticizer includes dioctyl terephthalate. Dioctyl adipate or another plasticizer may be used with dioctyl terephthalate. In this case, the plasticizer may contain 20 to 80 wt. % dioctyl terephthalate, or more specifically 20 to 60 wt. % dioctyl terephthalate. The food wrap may have a thickness of 1 to 80 mils. According to a method of wrapping food, the food wrap is applied to a food article. According to a method of forming the food wrap, polyvinyl chloride is combined with the plasticizer to form a mixture. The mixture is heated and fused. Then, a film is formed from the fused mixture.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: January 13, 2004
    Assignee: Eastman Chemical Company
    Inventors: Samuel L. Gott, David J. Olsen
  • PVC food wrap formed from dioctyl terphthalate plasticizer, method of forming same and method of wrapping food therewith
    Publication number: 20030014948
    Abstract: A food wrap formed from polyvinyl chloride, at least one stabilizer, and a plasticizer in an amount of 10-60 parts per hundred parts polyvinyl chloride. The plasticizer may be present in an amount of 30-55 parts per hundred parts polyvinyl chloride. The plasticizer includes dioctyl terephthalate. Dioctyl adipate or another plasticizer may be used with dioctyl terephthalate. In this case, the plasticizer may contain 20 to 80 wt. % dioctyl terephthalate, or more specifically 20 to 60 wt. % dioctyl terephthalate. The food wrap may have a thickness of 1 to 80 mils. According to a method of wrapping food, the food wrap is applied to a food article. According to a method of forming the food wrap, polyvinyl chloride is combined with the plasticizer to form a mixture. The mixture is heated and fused. Then, a film is formed from the fused mixture.
    Type: Application
    Filed: November 26, 2001
    Publication date: January 23, 2003
    Applicant: Eastman Chemical Company
    Inventors: Samuel L. Gott, David J. Olsen
  • Compatibilized epoxy/polyamide compositions containing polyolefins
    Patent number: 5091469
    Abstract: Disclosed are epoxy/polyamide adhesive compositions having improved flexibility containing a polyolefin and a maleated polypropylene. A typical epoxy/polyamide adhesive is bisphenol A/epichlorohydrin.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: February 25, 1992
    Assignee: Eastman Kodak Company
    Inventors: Richard A. Miller, David J. Olsen