Patents by Inventor David V. Dobreski

David V. Dobreski 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: 20240002119
    Abstract: Provided herein are packaging systems suitable for storing products, such as food products. The packaging systems are made up of multilayer film constructions that provide controlled release of an active agent at a point in time that is past the manufacturing of the packaging systems but coincides with their functional use (e.g., at the food packaging step). The multilayer film constructions have a composition that is sensitive to humidity, which converts the constructions from a barrier to a transmitter of the active agent loaded within multilayer film constructions.
    Type: Application
    Filed: November 17, 2021
    Publication date: January 4, 2024
    Applicant: SoFresh, Inc.
    Inventors: William P. BELIAS, Toby R. THOMAS, David V. DOBRESKI
  • Patent number: 8167490
    Abstract: The disclosed subject matter relates to a multilayer stretchy drawstring and methods of making the same. The drawstring of the disclosed subject matter is a stretched multilayer coextruded or laminated film that offers good balance between easy stretching at low strain and high strain hardening at high strain. The multilayer film includes a first layer of elastomeric polymer and second and third layers of thermoplastic polymer and is stretched beyond the deformation limit of the thermoplastic polymer and allowed to recover. This novel drawstring can be incorporated into a bag to enable the bag to be securely fitted to the upper portion of a trash container while not interfering with the intrinsic strength and operation of the drawstring.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: May 1, 2012
    Assignee: Reynolds Consumer Products Inc.
    Inventors: Yu Hu, Thomas A. White, David V. Dobreski
  • Patent number: 7977397
    Abstract: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: July 12, 2011
    Assignee: Pactiv Corporation
    Inventors: Yunwa Wilson Cheung, David V. Dobreski, Richard Turner, Mark Wheeler, Y. Paul Handa
  • Patent number: 7904996
    Abstract: A slider is adapted for use with a reclosable fastener for bags containing material. The reclosable fastener includes a first track and a second track. The first track includes a first profile, while the second track includes a second profile. The first and second profiles are releasably engageable to each other. At least one of the first and second profiles has an interior portion. The slider comprises a body that includes a top, a first side, a second side and a separation member on an underside of the top. The separation member is adapted to open and close the fastener and includes a slider finger that extends generally downwardly from the top. The slider finger extends into an interior portion of the first profile so as to assist in removing material trapped in the interior portion of the first profile when closing the reclosable fastener.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: March 15, 2011
    Assignee: Pactiv Corporation
    Inventors: David V. Dobreski, Toby R. Thomas, David P. Cameron
  • Patent number: 7872056
    Abstract: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: January 18, 2011
    Assignee: Pactiv Corporation
    Inventors: Yunwa Wilson Cheung, David V. Dobreski, Richard Turner, Mark Wheeler, Y. Paul Handa
  • Publication number: 20100272379
    Abstract: The disclosed subject matter relates to a multilayer stretchy drawstring and methods of making the same. The drawstring of the disclosed subject matter is a stretched multilayer coextruded or laminated film that offers good balance between easy stretching at low strain and high strain hardening at high strain. The multilayer film includes a first layer of elastomeric polymer and second and third layers of thermoplastic polymer and is stretched beyond the deformation limit of the thermoplastic polymer and allowed to recover. This novel drawstring can be incorporated into a bag to enable the bag to be securely fitted to the upper portion of a trash container while not interfering with the intrinsic strength and operation of the drawstring.
    Type: Application
    Filed: October 30, 2009
    Publication date: October 28, 2010
    Inventors: Yu Hu, Thomas A. White, David V. Dobreski
  • Patent number: 7744993
    Abstract: The present invention provides for a polymer composite foam with a treated filler and methods for making the same. The polymer composite foam includes a polymer capable of being formed into a polymeric foam and a treated filler, wherein the polymer defines a plurality of cells dispersed therethrough and the treated filler is dispersed throughout the polymer. The filler is treated by techniques which exfoliate, delaminate or intercalate the filler particles into individual micro and/or nano size particulates and platelets. Ideally, the treated filler has a median particle size ranging from about 0.1 nm-10 ?m. The treated filler enhances the rigidity, barrier properties, heat deflection temperature, nucleation characteristics, fire retardant characteristics and impact properties of the foam. The products fabricated from the polymer composite foam include containers, cups, sleeves, bags, plates, bowls, protective packaging, boards, sheets, void fillers, storageware, dinnerware and cookware.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: June 29, 2010
    Assignee: Pactiv Corporation
    Inventors: Wen Pao Wu, David V. Dobreski
  • Publication number: 20100101055
    Abstract: A slider is adapted for use with a reclosable fastener for bags containing material. The reclosable fastener includes a first track and a second track. The first track includes a first profile, while the second track includes a second profile. The first and second profiles are releasably engageable to each other. At least one of the first and second profiles has an interior portion. The slider comprises a body that includes a top, a first side, a second side and a separation member on an underside of the top. The separation member is adapted to open and close the fastener and includes a slider finger that extends generally downwardly from the top. The slider finger extends into an interior portion of the first profile so as to assist in removing material trapped in the interior portion of the first profile when closing the reclosable fastener.
    Type: Application
    Filed: December 29, 2009
    Publication date: April 29, 2010
    Applicant: Pactiv Corporation
    Inventors: David V. Dobreski, Toby R. Thomas, David P. Cameron
  • Patent number: 7665192
    Abstract: A slider is adapted for use with a reclosable fastener for bags containing material. The reclosable fastener includes a first track and a second track. The first track includes a first profile, while the second track includes a second profile. The first and second profiles are releasably engageable to each other. At least one of the first and second profiles has an interior portion. The slider comprises a body that includes a top, a first side, a second side and a separation member on an underside of the top. The separation member is adapted to open and close the fastener and includes a slider finger that extends generally downwardly from the top. The slider finger extends into an interior portion of the first profile so as to assist in removing material trapped in the interior portion of the first profile when closing the reclosable fastener.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: February 23, 2010
    Assignee: PACTiV Corporation
    Inventors: James S. Blythe, David V. Dobreski, Daniel B. Ferrari, Steven P. Long, Toby R. Thomas, David P. Cameron
  • Publication number: 20090286023
    Abstract: A multi-layer polymer composite film comprising at least a first layer of polymer material and a second layer of polymer material, at least one of the first layer and the second layer further including, a treated filler having a median particle size of about O.1 nm-1O ?m, the treated filler dispersed throughout the polymer material of the at least one of the first layer and the second layer.
    Type: Application
    Filed: March 30, 2006
    Publication date: November 19, 2009
    Applicant: Pactiv Corporation
    Inventors: David V. Dobreski, When Pao Wu
  • Publication number: 20090234035
    Abstract: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 17, 2009
    Inventors: Yunwa Wilson Cheung, David V. Dobreski, Richard Turner, Mark Wheeler
  • Publication number: 20090123728
    Abstract: The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.
    Type: Application
    Filed: February 2, 2009
    Publication date: May 14, 2009
    Applicant: PACTIV CORPORATION
    Inventors: Yunwa Wilson Cheung, David V. Dobreski, Richard Turner, Mark Wheeler, Y. Paul Handa
  • Publication number: 20080172842
    Abstract: A slider is adapted for use with a reclosable fastener for bags containing material. The reclosable fastener includes a first track and a second track. The first track includes a first profile, while the second track includes a second profile. The first and second profiles are releasably engageable to each other. At least one of the first and second profiles has an interior portion. The slider comprises a body that includes a top, a first side, a second side and a separation member on an underside of the top. The separation member is adapted to open and close the fastener and includes a slider finger that extends generally downwardly from the top. The slider finger extends into an interior portion of the first profile so as to assist in removing material trapped in the interior portion of the first profile when closing the reclosable fastener.
    Type: Application
    Filed: March 24, 2008
    Publication date: July 24, 2008
    Inventors: James S. Blythe, David V. Dobreski, Daniel B. Ferrari, Steven P. Long, Toby R. Thomas, David P. Cameron
  • Patent number: 7159282
    Abstract: A slider is adapted for use with a reclosable fastener for bags containing material. The reclosable fastener includes a first track and a second track. The first track includes a first profile, while the second track includes a second profile. The first and second profiles are releasably engageable to each other. At least one of the first and second profiles has an interior portion. The slider comprises a body that includes a top, a first side, a second side and a separation member on an underside of the top. The separation member is adapted to open and close the fastener and includes a slider finger that extends generally downwardly from the top. The slider finger extends into an interior portion of the first profile so as to assist in removing material trapped in the interior portion of the first profile when closing the reclosable fastener.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: January 9, 2007
    Assignee: Pactiv Corporation
    Inventors: James S. Blythe, David V. Dobreski, Daniel B. Ferrari, Steven P. Long, Toby R. Thomas, David P. Cameron
  • Patent number: 6821589
    Abstract: A plastic bag comprises first and second panels each having a top, a bottom, and first and second opposing sides. The first and second panels are joined to each other along their respective bottoms, their respective first opposing sides, and their respective second opposing sides. The plastic bag includes a zipper having a male and female track. The male track includes a male profile and a first fin, in which the first fin is affixed to the first panel in proximity to the top of said first panel. The female track includes a female profile and a second fin, in which the second fin is affixed to the second panel in proximity to the top of said second panel. The male and female profiles having complementary cross-sections. The inventive fins comprise a first resin and, optionally, a second resin which, along with the fins seals, are able to withstand greater forces and more adverse conditions. At least one of the fins comprises a first resin having a polydispersity of about 1 to about 4, a melt index of about 0.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: November 23, 2004
    Assignee: Pactiv Corporation
    Inventors: David V. Dobreski, Steve P Long
  • Publication number: 20030217444
    Abstract: A slider is adapted for use with a reclosable fastener for bags containing material. The reclosable fastener includes a first track and a second track. The first track includes a first profile, while the second track includes a second profile. The first and second profiles are releasably engageable to each other. At least one of the first and second profiles has an interior portion. The slider comprises a body that includes a top, a first side, a second side and a separation member on an underside of the top. The separation member is adapted to open and close the fastener and includes a slider finger that extends generally downwardly from the top. The slider finger extends into an interior portion of the first profile so as to assist in removing material trapped in the interior portion of the first profile when closing the reclosable fastener.
    Type: Application
    Filed: February 25, 2003
    Publication date: November 27, 2003
    Inventors: James S. Blythe, David V. Dobreski, Daniel B. Ferrari, Steven P. Long, Toby R. Thomas, David P. Cameron
  • Patent number: 6499878
    Abstract: A reclosable package includes a pair of opposing walls, a reclosable seal and a barrier partition. The pair of opposing wall panels are joined along a pair of opposing sides and a bottom bridges the opposing sides to create a receptacle space having a mouth end opposite the bottom. The reclosable seal extends along the mouth end and includes first and second opposing reclosable elements. The first and second reclosable elements are releasably engageable to each other. The barrier partition comprises at least a first layer that is substantially impermeable to at least one of oxygen, nitrogen and carbon dioxide. The barrier partition extends substantially across the pair of opposing wall panels in the receptacle space.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: December 31, 2002
    Assignee: Pactiv Corporation
    Inventors: David V. Dobreski, Steve P. Long, Toby R. Thomas
  • Publication number: 20020131653
    Abstract: A reclosable package includes a pair of opposing walls, a reclosable seal and a barrier partition. The pair of opposing wall panels are joined along a pair of opposing sides and a bottom bridges the opposing sides to create a receptacle space having a mouth end opposite the bottom. The reclosable seal extends along the mouth end and includes first and second opposing reclosable elements. The first and second reclosable elements are releasably engageable to each other. The barrier partition comprises at least a first layer that is substantially impermeable to at least one of oxygen, nitrogen and carbon dioxide. The barrier partition extends substantially across the pair of opposing wall panels in the receptacle space.
    Type: Application
    Filed: May 16, 2002
    Publication date: September 19, 2002
    Inventors: David V. Dobreski, Steve P. Long, Toby R. Thomas
  • Publication number: 20020097923
    Abstract: A reclosable package includes a pair of opposing walls, a reclosable seal and a barrier partition. The pair of opposing wall panels are joined along a pair of opposing sides and a bottom bridges the opposing sides to create a receptacle space having a mouth end opposite the bottom. The reclosable seal extends along the mouth end and includes first and second opposing reclosable elements. The first and second reclosable elements are releasably engageable to each other. The barrier partition comprises at least a first layer that is substantially impermeable to at least one of oxygen, nitrogen and carbon dioxide. The barrier partition extends substantially across the pair of opposing wall panels in the receptacle space.
    Type: Application
    Filed: March 21, 2002
    Publication date: July 25, 2002
    Inventors: David V. Dobreski, Steve P. Long, Toby R. Thomas
  • Patent number: RE44934
    Abstract: A zipper arrangement for use in manufacturing thermoplastic bags that includes a zipper and at least one slider. The zipper includes first and second opposing tracks. The first track has a first profile and the second track has a second profile. The first and second profiles are releasably engageable to each other. The first track has one or more spaced primary notches interrupting the first profile. At least one slider is inserted onto the first profile via a respective one of the primary notches. The slider is adapted to engage and disengage the first and second profiles in response to movement along the zipper. The second track may have one or more to spaced primary notches interrupting the second profile. The spaced primary notches of the second track are generally aligned to respective ones of the primary notches of the first track. At least one slider is inserted onto the aligned pairs of primary notches via a respective one of the generally aligned notches.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: June 10, 2014
    Assignee: Reynolds Presto Products Inc.
    Inventors: Alexander R. Provan, Thomas L. Coomber, Ian J. Barclay, David V. Dobreski, Toby R. Thomas