Patents by Inventor Drew V. Speer

Drew V. Speer 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: 20010008662
    Abstract: An article of manufacture includes an oxygen scavenger and a zeolite. The article can be in the form of e.g. a film or sealing compound. A package can be made from the article for containing an oxygen-sensitive article such as food. The zeolite reduces migration of odor causing by-products of the oxygen scavenging process. A method of making an article of manufacture having reduced migration of by-products of an oxygen scavenging reaction includes providing an article including an oxygen scavenger and a zeolite; and exposing the article to actinic radiation.
    Type: Application
    Filed: May 7, 1998
    Publication date: July 19, 2001
    Inventors: THOMAS A. BLINKA, FRANK B. EDWARDS, NATHANAEL R. MIRANDA, DREW V. SPEER, JEFFREY A. THOMAS
  • Patent number: 6255248
    Abstract: A composition capable of scavenging oxygen composed of (i) a copolymer of, at least, ethylene and a strained, cyclic alkylene, preferably cyclopentene; (ii) a transition metal catalyst; (iii) preferably, a photoinitiator; and (iv) optionally, a polymeric diluent.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: July 3, 2001
    Assignee: Cryovac, Inc.
    Inventors: Donald A. Bansleben, Slawomir Opuszko, Drew V. Speer
  • Patent number: 5834079
    Abstract: An article of manufacture includes an oxygen scavenger and a zeolite. The article can be in the form of e.g. a film or sealing compound. A package can be made from the article for containing an oxygen-sensitive article such as food. The zeolite reduces migration of odor causing by-products of the oxygen scavenging process. A method of making an article of manufacture having reduced migration of byproducts of an oxygen scavenging reaction includes providing an article including an oxygen scavenger and a zeolite; and exposing the article to actinic radiation.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: November 10, 1998
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Thomas A. Blinka, Frank B. Edwards, Nathanael R. Miranda, Drew V. Speer, Jeffrey A. Thomas
  • Patent number: 5700554
    Abstract: An article useful for packaging oxygen-sensitive products is disclosed. The article is a single or multi-layer article capable of enveloping the oxygen sensitive product. The article has at least one layer which contains a composition composed of an ethylenically unsaturated hydrocarbon polymer and a transition metal salt. The layer is capable of scavenging oxygen at a rate of at least 1 cc oxygen per square meter per day and has a capacity of at least 250 cc oxygen per square meter per mil thickness of the layer.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: December 23, 1997
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan, Cynthia L. Ebner
  • Patent number: 5583047
    Abstract: A method of detecting the permeability of an article to oxygen is disclosed. A fluorescent redox indicator, preferably riboflavin, is dispersed in a carrier and placed on an impermeable substrate. The article to be measured is placed adjacent to the carrier. Residual oxygen is removed, the redox indicator is photoreduced, the article and carrier are exposed to oxygen, and the indicator is exposed to UV light.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: December 10, 1996
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Thomas A. Blinka, Christopher Bull, Charles R. Barmore, Drew V. Speer
  • Patent number: 5529833
    Abstract: Products and film structures using the oxygen scavengers, are disclosed. Such products demonstrate enhanced shelf stability of foodstuffs and reduced sensitivity to humidity and temperature changes.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: June 25, 1996
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, Charles R. Morgan, William P. Roberts, Andrew W. VanPutte
  • Patent number: 5498364
    Abstract: A method of initiating oxygen scavenging by rigid or semi-rigid articles which comprise oxidizable organic compounds and transition metal catalysts is disclosed. The method comprises initiating scavenging by exposing the composition, etc., to radiation. The radiation exposure is preferably electron beam or ultraviolet light and is preferably used on oxygen scavenging compositions which comprise a substituted or unsubstituted ethylenically unsaturated hydrocarbon and a transition metal catalyst. Inclusion of a photoinitiator or antioxidant in the scavenging composition is also preferred to facilitate and/or control the composition's scavenging properties. The method can be used for initiating scavenging in packaging layers or articles for oxygen sensitive products such as food and beverage.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: March 12, 1996
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan
  • Patent number: 5425896
    Abstract: A method of initiating oxygen scavenging by compositions which comprise oxidizable organic compounds and transition metal catalysts is disclosed. The method comprises initiating scavenging by exposing the composition, etc., to radiation. The radiation exposure is preferably electron beam or ultraviolet light and is preferably used on oxygen scavenging compositions which comprise a substituted or unsubstituted ethylenically unsaturated hydrocarbon and a transition metal catalyst. Inclusion of a photoinitiator or antioxidant in the scavenging composition is also preferred to facilitate and/or control the composition's scavenging properties. The method can be used for initiating scavenging in packaging layers or articles for oxygen sensitive products such as food and beverage.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: June 20, 1995
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan
  • Patent number: 5399289
    Abstract: A composition for scavenging oxygen is disclosed. The composition comprises an ethylenically unsaturated hydrocarbon polymer which has 0.01-1.0 equivalents of carbon-carbon double bonds per 100 g of polymer and a transition metal catalyst and can be incorporated into various types of layers. The composition has an elongation-at-break of at least 20% and retains at least 50% of its original tensile strength after oxygen scavenging has occurred.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: March 21, 1995
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, Charles R. Morgan, William P. Roberts, Ram K. Ramesh
  • Patent number: 5350622
    Abstract: Products and film structures using the oxygen scavengers, are disclosed. Such products demonstrate enhanced shelf stability of foodstuffs and reduced sensitivity to humidity and temperature changes.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: September 27, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, Charles R. Morgan, William P. Roberts, Andrew W. VanPutte
  • Patent number: 5346644
    Abstract: A composition for scavenging oxygen is disclosed. The composition comprises an ethylenically unsaturated hydrocarbon and a transition metal catalyst and can be incorporated into various types of layers. It is preferable that the composition be incorporated into layers of multilayered articles used for packaging oxygen-sensitive products such as food products.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: September 13, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan, Cynthia L. Ebner
  • Patent number: 5211875
    Abstract: A method of initiating oxygen scavenging by compositions which comprise oxidizable organic compounds and transition metal catalysts is disclosed. The method comprises initiating scavenging by exposing the composition, etc., to radiation. The radiation exposure is preferably electron beam or ultraviolet light and is preferably used on oxygen scavenging compositions which comprise a substituted or unsubstituted ethylenically unsaturated hydrocarbon and a transition metal catalyst. Inclusion of a photoinitiator or antioxidant in the scavenging composition is also preferred to facilitate and/or control the composition's scavenging properties. The method can be used for initiating scavenging in packaging layers or articles for oxygen sensitive products such as food and beverage.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: May 18, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Drew V. Speer, William P. Roberts, Charles R. Morgan