Patents by Inventor George D. Bolden

George D. Bolden 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).

  • Process for making shrink film comprising rapidly-quenched semi-crystalline polyamide
    Patent number: 7744806
    Abstract: As a first aspect, the present invention is directed to a process for making a heat-shrinkable annular film, comprising: (A) extruding an annular extrudate downward from an annular die; (B) quenching the annular extrudate by applying a quenching liquid to the annular extrudate; (C) reheating the extrudate to an orientation temperature of from 130° F. to 210° F., resulting in a reheated annular extrudate; and (D) orienting the reheated annular extrudate while the reheated annular extrudate is in the solid state, the orientation being carried out with a total orientation factor of at least 2, so that the resulting oriented, heat-shrinkable film has a total free shrink at 185° F. of at least 10 percent. The extrudate comprises at least one semi-crystalline polyamide selected from the group consisting of: (i) polyamide 6, (ii) polyamide 66, (iii) polyamide 6/66, and (iv) polyamide 6/12. The semi-crystalline polyamide makes up at least 5 volume percent of the annular extrudate.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: June 29, 2010
    Assignee: Cryovac, Inc.
    Inventors: Michael E. Broadus, Richard M. Dayrit, Bryan E. Freeman, Frank M. Hofmeister, Brian P. Rivers, Roger D. Vrooman, Christopher K. Robinson, George D. Bolden, Robert W. Campbell, Nathanael R. Miranda
  • Process for making shrink film comprising rapidly-quenched semi-crystalline polyamide
    Publication number: 20080179780
    Abstract: As a first aspect, the present invention is directed to a process for making a heat-shrinkable annular film, comprising: (A) extruding an annular extrudate downward from an annular die; (B) quenching the annular extrudate by applying a quenching liquid to the annular extrudate; (C) reheating the extrudate to an orientation temperature of from 130° F. to 210° F., resulting in a reheated annular extrudate; and (D) orienting the reheated annular extrudate while the reheated annular extrudate is in the solid state, the orientation being carried out with a total orientation factor of at least 2, so that the resulting oriented, heat-shrinkable film has a total free shrink at 185° F. of at least 10 percent. The extrudate comprises at least one semi-crystalline polyamide selected from the group consisting of: (i) polyamide 6, (ii) polyamide 66, (iii) polyamide 6/66, and (iv) polyamide 6/12. The semi-crystalline polyamide makes up at least 5 volume percent of the annular extrudate.
    Type: Application
    Filed: January 29, 2007
    Publication date: July 31, 2008
    Inventors: Michael E. Broadus, Richard M. Dayrit, Bryan E. Freeman, Frank M. Hofmeister, Brian P. Rivers, Roger D. Vrooman, Christopher K. Robinson, George D. Bolden, Robert W. Campbell, Nathanael R. Miranda