Patents by Inventor Marti N. Harrison

Marti N. Harrison 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).

  • Biodegradable poly (3-Hydroxyalkanoate) compositions and blends
    Patent number: 5625029
    Abstract: Novel poly(3-hydroxyalkanoates), such as poly(3-hydroxybutyrate), and blends of these with other polymers are disclosed. A novel process for producing these poly(3-hydroxyalkanoates) is also disclosed which entails polymerizing one or more .beta.-substituted-.beta.-propiolactone(s) under polymerization conditions in the substantial absence of water in the presence of an anionic initiator.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 29, 1997
    Assignee: Eastman Chemical Company
    Inventors: John C. Hubbs, Marti N. Harrison, Steven Gedon, Charles Buchanan, Robert M. Gardner, Douglas C. Hoffman, Alan W. White
  • Composition and process for the production of poly(3-hydroxyalkanoates)
    Patent number: 5563239
    Abstract: Disclosed is a novel process for the production of poly(3-hydroxyalkanoates) through the condensation polymerization of esters of 3-hydroxyalkanoic acids at a temperature of about 90.degree. to 200.degree. C. in the presence of a titanium catalyst. Also is disclosed a novel composition that is a poly(3-hydroxyalkanoate) containing predominantly carboxylic ester end groups.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: October 8, 1996
    Assignee: Eastman Chemical Company
    Inventors: John C. Hubbs, Marti N. Harrison
  • Process for the production of poly(3-hydroxyalkanoates)
    Patent number: 5552515
    Abstract: Novel poly(3-hydroxyalkanoates), such as poly(3-hydroxybutyrate), and blends of these with other polymers are disclosed. A novel process for producing these poly(3-hydroxyalkanoates) is also disclosed which entails polymerizing one or more .beta.-substituted-.beta.-propiolactone(s) under polymerization conditions in the substantial absence of water in the presence of an anionic initiator.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: September 3, 1996
    Assignee: Eastman Chemical Company
    Inventors: John C. Hubbs, Marti N. Harrison, Charles Buchanan, Alan W. White
  • Poly(3-hydroxyalkanoates)
    Patent number: 5391708
    Abstract: Novel poly(3-hydroxyalkanoates), such as poly(3-hydroxybutyrate), and blends of these with other polymers are disclosed. A novel process for producing these poly(3-hydroxyalkanoates) is also disclosed which entails polymerizing one or more .beta.-substituted-.beta.-propiolactone(s) under polymerization conditions in the substantial absence of water in the presence of an anionic initiator.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: February 21, 1995
    Assignee: Eastman Chemical Company
    Inventors: John C. Hubbs, Marti N. Harrison, Charles Buchanan
  • Poly(3-hydroxyalkanoates)
    Patent number: 5281691
    Abstract: Novel poly(3-hydroxyalkanoates), such as poly(3-hydroxybutyrate), and blends of these with other polymers are disclosed. A novel process for producing these poly(3-hydroxyalkanoates) is also disclosed which entails polymerizing one or more .beta.-substituted-.beta.-propiolactone(s) under polymerization conditions in the substantial absence of water in the presence of an anionic initiator.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: January 25, 1994
    Assignee: Eastman Kodak Company
    Inventors: John C. Hubbs, Marti N. Harrison