Patents Assigned to C-STONE LLC
  • Patent number: 8604123
    Abstract: Described herein are biodegradable compositions, methods for making these compositions, and applications using these compositions. In one embodiment, a process of manufacturing paper or other products is provided using a composition comprising a mixture of calcium carbonate along with a biodegradable biopolymer matrix made from renewable resources including polylactic acid (“PLA”), aliphatic polyesters, and/or aliphatic aromatic polyesters and other additives.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 10, 2013
    Assignee: C-Stone LLC
    Inventors: Paul Weismann, Sandee Whiteman, James Lunt
  • Publication number: 20120196950
    Abstract: Described herein are biodegradable compositions, methods for making these compositions, and applications using these compositions. In one embodiment, a process of manufacturing paper or other products is provided using a composition comprising a mixture of 25% to 80% calcium carbonate along with a biodegradable biopolymer matrix made from renewable resources including polylactic acid (“PLA”), soy proteins, polyhydroxyalkanoate (“PHA”), polyhydroxybutyrate (“PHB”), and/or starch from corn, wheat, tapioca, potatoes, or similar renewable resource products.
    Type: Application
    Filed: April 10, 2012
    Publication date: August 2, 2012
    Applicant: C-STONE LLC
    Inventors: Paul Weismann, Sandee Whiteman