Patents by Inventor Alexander Charles Bakken

Alexander Charles Bakken 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).

  • Publication number: 20210023739
    Abstract: An amorphous polylactic acid polymer having a weight average molecular weight in the range of about 35,000 to 180,000 is described. The polylactic acid polymer composition can be hammer milled without cryogenics result in the form of particles wherein 90% of the particles have particle size of about 250 ?m or less and the material has a glass transition temperature of between about 55° C. to about 58° C. and a relative viscosity of about 1.45 to about 1.95 centipoise. The polymer composition can be used to form an aqueous suspension. The material is ideally suited for use in preparing particleboard. A method is disclosed for preparing such polylactic acid polymers. The method involves obtaining an amorphous polylactic acid polymer having a weight average molecular weight of between about 115,000 to about 180,000. Treating the polylactic acid polymer to reduce the molecular weight to between about 35,000 to 45,000 such that it has a glass transition temperature of between about 55° C. and 58° C.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Applicant: Purdue Research Foundation
    Inventors: Rusi P. Taleyarkhan, Brian C. Archambault, Alexander Charles Bakken
  • Patent number: 10843372
    Abstract: An amorphous polylactic acid polymer having a weight average molecular weight in the range of about 35,000 to 180,000 is described. The polylactic acid polymer composition can be hammer milled without cryogenics result in the form of particles wherein 90% of the particles have particle size of about 250 ?m or less and the material has a glass transition temperature of between about 55° C. to about 58° C. and a relative viscosity of about 1.45 to about 1.95 centipoise.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: November 24, 2020
    Assignee: Purdue Research Foundation
    Inventors: Rusi P. Taleyarkhan, Brian C Archambault, Alexander Charles Bakken
  • Patent number: 10442966
    Abstract: New adhesives and methods for preparing them are disclosed that include polylactic acid irradiated with gamma radiation, such as by a Co60 source. Irradiation times are used that improve the characteristics of the adhesive materials. Generally, the dose of radiation is from about 5 kGy to about 200 kGy of gamma irradiation. The adhesives generally have melting temperatures in the range of at least about 140 to about 148° C. such that they can be conveniently used in conventional glue guns and other glue equipment. The disclosed adhesives can provide bond strengths in the range of about 1,600 psi or more to about 2,500 psi or more. The disclosed adhesives can include a crosslinking agents. They can be used to join a wide range of substrates including wood, metal, plastic, ceramic, glass or combinations of substrates. They can be conveniently prepared by heating a polylactic acid (polylactic acid) preparation and mixing the molten polylactic acid with one or more crosslinkers when present.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: October 15, 2019
    Assignee: Purdue Research Foundation
    Inventors: Rusi Taleyarkhan, Alexander Charles Bakken, Kevin F. Fisher, Alexander R. Hagen, Neal P. Kostry
  • Patent number: 10093824
    Abstract: Protective coatings and methods for forming them are disclosed wherein the coatings have increased abrasion, impact and scratch resistance as compared to known coatings. The coatings are made from environmentally friendly materials such as polylactic acid which can be derived from corn. The materials can be used to provide a protective coating on their substrate materials including especially wood for flooring and furniture. The coatings can have a hardness as measured on the Shore D Scale that can reach at least 75 to about 85 and enhanced resistance to abrasions, impact or scratches and can be used to coat flooring or furniture surfaces. The coatings can contain from about 1 to about 10 mass percent of triallyl isocyanurate with respect to polylactic acid.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: October 9, 2018
    Assignee: Sagamore Adams Laboratories LLC
    Inventors: Rusi P. Taleyarkhan, Nicholas Edward Hume, Alexander Charles Bakken, Thomas Francis Grimes
  • Publication number: 20150322310
    Abstract: New adhesives and methods for preparing them are disclosed that include polylactic acid irradiated with gamma radiation, such as by a Co60 source. Irradiation times are used that improve the characteristics of the adhesive materials. Generally, the dose of radiation is from about 5 kGy to about 200 kGy of gamma irradiation. The adhesives generally have melting temperatures in the range of at least about 140 to about 148° C. such that they can be conveniently used in conventional glue guns and other glue equipment. The disclosed adhesives can provide bond strengths in the range of about 1,600 psi or more to about 2,500 psi or more. The disclosed adhesives can include a crosslinking agents. They can be used to join a wide range of substrates including wood, metal, plastic, ceramic, glass or combinations of substrates. They can be conveniently prepared by heating a polylactic acid (polylactic acid) preparation and mixing the molten polylactic acid with one or more crosslinkers when present.
    Type: Application
    Filed: November 15, 2013
    Publication date: November 12, 2015
    Inventors: Rusi TALEYARKHAN, Alexander Charles BAKKEN, Kevin F. FISHER, Alexander R. HAGEN, Neal P. KOSTRY
  • Publication number: 20140227543
    Abstract: Protective coatings and methods for forming them are disclosed wherein the coatings have increased abrasion, impact and scratch resistance as compared to known coatings. The coatings are made from environmentally friendly materials such as polylactic acid which can be derived from corn. The materials can be used to provide a protective coating on their substrate materials including especially wood for flooring and furniture. The coatings can have a hardness as measured on the Shore D Scale that can reach at least 75 to about 85 and enhanced resistance to abrasions, impact or scratches and can be used to coat flooring or furniture surfaces. The coatings can contain from about 1 to about 10 mass percent of triallyl isocyanurate with respect to polylactic acid.
    Type: Application
    Filed: May 11, 2012
    Publication date: August 14, 2014
    Inventors: Rusi P. Taleyarkhan, Nicholas Edward Hume, Alexander Charles Bakken, Thomas Francis Grimes