Patents Assigned to Gaia Research
  • Production of encapsulated chemical foaming concentrates
    Patent number: 5611962
    Abstract: The present invention is directed to the process and apparatus for compounding and pelletizing of chemical foaming agents in a high melt resin carrier and producing unique, uniform encapsulated and pelletized chemical foaming concentrates. More specifically, the present invention is directed to the compounding, encapsulating and pelletizing in a high melt resin carrier a highly loaded concentration (5 to 70 wt %) of foaming agents which include an endothermic foaming agent, an exothermic foaming agent or hybrid combinations of these two such that when incorporated into a thermoplastic resin to produce a foamed product will chemically react to form carbon dioxide, nitrogen or hydrogen or mixtures thereof as the active foaming gas.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: March 18, 1997
    Assignee: GAIA Research
    Inventors: Rodrigo A. Garcia, Joseph G. Gho
  • Apparatus for the production of encapsulated foaming concentrates
    Patent number: 5609892
    Abstract: The present invention is directed to apparatus for compounding and pelletizing of chemical foaming agents in a high melt resin carrier and producing unique, uniform encapsulated and pelletized chemical foaming concentrates. More specifically, the present invention is directed to the compounding, encapsulating and pelletizing in a high melt resin carrier a highly loaded concentration (5 to 70 wt %) of foaming agents which include an endothermic foaming agent, an exothermic foaming agent or hybrid combinations of these two such that when incorporated into a thermoplastic resin to produce a foamed product will chemically react to form carbon dioxide, nitrogen or hydrogen or mixtures thereof as the active foaming gas.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: March 11, 1997
    Assignee: GAIA Research
    Inventors: Rodrigo A. Garcia, Joseph G. Gho
  • Production of encapsulated chemical foaming concentrates
    Patent number: 5234963
    Abstract: The present invention is directed to the process and apparatus for compounding and pelletizing of chemical foaming agents in a high melt resin carrier and producing unique, uniform encapsulated and pelletized chemical foaming concentrates. More specifically, the present invention is directed to the compounding, encapsulating and pelletizing in a high melt resin carrier a highly loaded concentration (5 to 70 wt %) of foaming agents which include an endothermic foaming agent, an exothermic foaming agent or hybrid combinations of these two such that when incorporated into a thermoplastic resin to produce a foamed product will chemically react to form a mixture of carbon dioxide, nitrogen or hydrogen as the active foaming agent.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: August 10, 1993
    Assignee: Gaia Research
    Inventors: Rodrigo A. Garcia, Joseph G. Gho