Patents by Inventor Rufina Alamo

Rufina Alamo 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: 8415441
    Abstract: The invention is a novel family of polyolefins characterized by chain-walking defects of the type that add extra backbone carbons per monomer. These polyolefins display a large decrease in crystallinity relative to polyolefins known in the art. Specifically, the reduction in crystallinity is much greater than for earlier polypropylenes with a matched content of stereo or 1-alkene type defects. The claimed polyolefins can be made by a diimine-based catalyst. The defects in the polyolefin backbone are generated by a chain walking mechanism in which three or more carbons per monomer are added to the polymer backbone instead of two, as in conventional polymerization or copolymerization methods of alpha olefins. The novel polyolefins can be used in applications such as plastic wrapping, thin films, co-extrusion layers or molded parts in the absence of polymer blending or copolymerization. The cost of materials production can be reduced.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: April 9, 2013
    Assignees: The Florida State University Research Foundation, Inc., Cornell University Cornell Center for Technology, Enterprise & Commercialization
    Inventors: Rufina Alamo, Geoffrey Coates, Carolina Ruiz-Orta
  • Patent number: 8399588
    Abstract: The invention is a novel family of polyolefins characterized by chain-walking defects of the type that add extra backbone carbons per monomer. These polyolefins display a large decrease in crystallinity relative to polyolefins known in the art. Specifically, the reduction in crystallinity is much greater than for earlier polypropylenes with a matched content of stereo or 1-alkene type defects. The claimed polyolefins can be an alkene-based copolymer. The defects in the polyolefin backbone are generated by a chain walking mechanism in which three or more carbons per monomer are added to the polymer backbone instead of two, as in conventional polymerization or copolymerization methods of alpha olefins. The novel polyolefins can be used in applications such as plastic wrapping, thin films, co-extrusion layers or molded parts in the absence of polymer blending or copolymerization. The cost of materials production can be reduced.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: March 19, 2013
    Assignees: The Florida State University Research Foundation, Inc., Cornell University Cornell Center for Technology, Enterprise & Commercialization
    Inventors: Rufina Alamo, Geoffrey Coates, Carolina Ruiz-Orta
  • Patent number: 8399589
    Abstract: The invention is a novel family of polyolefins characterized by chain-walking defects of the type that add extra backbone carbons per monomer. These polyolefins display a large decrease in crystallinity relative to polyolefins known in the art. Specifically, the reduction in crystallinity is much greater than for earlier polypropylenes with a matched content of stereo or 1-alkene type defects. The claimed polyolefins can be made by a late metal catalyst. The defects in the polyolefin backbone are generated by a chain walking mechanism in which three or more carbons per monomer are added to the polymer backbone instead of two, as in conventional polymerization or copolymerization methods of alpha olefins. The novel polyolefins can be used in applications such as plastic wrapping, thin films, co-extrusion layers or molded parts in the absence of polymer blending or copolymerization. The cost of materials production can be reduced.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: March 19, 2013
    Assignees: The Florida State University Research Foundation, Inc., Cornell University Cornell Center for Technology, Enterprise & Commercialization
    Inventors: Rufina Alamo, Geoffrey Coates, Carolina Ruiz-Orta
  • Patent number: 8394908
    Abstract: The invention is a novel family of polyolefins characterized by chain-walking defects of the type that add extra backbone carbons per monomer. These polyolefins display a large decrease in crystallinity relative to polyolefins known in the art. Specifically, the reduction in crystallinity is much greater than for earlier polypropylenes with a matched content of stereo or 1-alkene type defects. The claimed polyolefins can be an alkene-based homopolymer. The defects in the polyolefin backbone are generated by a chain walking mechanism in which three or more carbons per monomer are added to the polymer backbone instead of two, as in conventional polymerization or copolymerization methods of alpha olefins. The novel polyolefins can be used in applications such as plastic wrapping, thin films, co-extrusion layers or molded parts in the absence of polymer blending or copolymerization. The cost of materials production can be reduced.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: March 12, 2013
    Assignees: The Florida State University Research Foundation, Inc., Cornell University Cornell Center for Technology, Enterprise & Commercialization
    Inventors: Rufina Alamo, Geoffrey Coates, Carolina Ruiz-Orta
  • Patent number: 8389660
    Abstract: The invention is a novel family of polyolefins characterized by chain-walking defects of the type that add extra backbone carbons per monomer. These polyolefins display a large decrease in crystallinity relative to polyolefins known in the art. Specifically, the reduction in crystallinity is much greater than for earlier polypropylenes with a matched content of stereo or 1-alkene type defects. The claimed polyolefins can be made by a late metal Ni(II) catalyst. The defects in the polyolefin backbone are generated by a chain waling mechanism in which three or more carbons per monomer are added to the polymer backbone instead of two, as in conventional polymerization or copolymerization methods of alpha olefins. The novel polyolefins can be used in applications such as plastic wrapping, thin films, co-extrusion layers or molded parts in the absence of polymer blending or copolymerization. The cost of materials production can be reduced.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: March 5, 2013
    Assignees: The Florida State University Research Foundation, Cornell University Cornell Center for Technology, Enterprise & Commercialization
    Inventors: Rufina Alamo, Geoffrey Coates, Carolina Ruiz-Orta