Patents by Inventor Sandra A. Kupperblatt

Sandra A. Kupperblatt 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).

  • Patent number: 6346599
    Abstract: Lactone copolymers are disclosed which are polymerized from a first lactone monomer and a second amorphous monomer which is effective to suppress the crystallization of the copolymer. It is disclosed that suppression of the crystallization can provide enhanced mechanical properties in films made from the copolymers. As a result, films prepared from the copolymers of the present invention can have properties rendering them suitable for use as biodegradable trash bags as well as for other uses.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: February 12, 2002
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Daniel Goldberg, Sandra A. Kupperblatt, Robert F. Eaton, Wong F Ark, David M Simpson
  • Patent number: 6297349
    Abstract: Condensation copolymers are disclosed which are polymerized from a first monomer which is capable of polymerization by condensation polymerization, e.g., ring opening lactone polymerization, and a second monomer which is effective to suppress the crystallization of the copolymer. It is disclosed that suppression of the crystallization can provide enhanced mechanical properties in films made from the copolymers. As a result, films prepared from the copolymers of the present invention can have properties rendering them suitable for use as biodegradable trash bags as well as for other uses.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: October 2, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Daniel Goldberg, Sandra A. Kupperblatt, Robert F. Eaton, Wong F Ark, David M Simpson