Patents by Inventor Donald Bigg

Donald Bigg 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: 5760118
    Abstract: Disclosed are products made of degradable materials which include a hydrolytically degradable polymer. The degradable materials can be internally or externally modified. The internally modified polymer composition has polymers modified by the use of comonomers having a relatively high molecular weight. The externally modified polymer composition includes a modifier, wherein the modifier is compatible with the polymer and the modifier is nontoxic, nonvolatile and nonfugitive. The various degradable materials include films, fibers, extruded and molded products, laminates, foams, powders, nonwovens, adhesives and coatings. The disclosed materials are particularly useful for the production of a variety of products in high volumes which are suitable for recycling after use or which are discarded into the environment in large volumes.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 2, 1998
    Assignee: Chronopol, Inc.
    Inventors: Richard G. Sinclair, Edward S. Lipinsky, James D. Browning, Donald Bigg, Thomas A. Rogers
  • Patent number: 5444113
    Abstract: Disclosed are products made of degradable materials which include a hydrolytically degradable polymer. The degradable materials can be internally or externally modified. The internally modified polymer composition has polymers modified by the use of comonomers having a relatively high molecular weight. The externally modified polymer composition includes a modifier, wherein the modifier is compatible with the polymer and the modifier is nontoxic, nonvolatile and nonfugitive. The various degradable materials include films, fibers, extruded and molded products, laminates, foams, powders, nonwovens, adhesives and coatings. The disclosed materials are particularly useful for the production of a variety of products in high volumes which are suitable for recycling after use or which are discarded into the environment in large volumes.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: August 22, 1995
    Assignee: Ecopol, LLC
    Inventors: Richard G. Sinclair, Edward S. Lipinsky, James D. Browning, Donald Bigg, Thomas A. Rogers