Patents by Inventor Harvey C. Tung

Harvey C. Tung 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: 6818163
    Abstract: An improved process for making a structural foamed polymer, a multilayer polymer film, sheet or tube, a pultrusion polymer profile, a compression molded extruded fiber reinforced polymer pre-form, a strand foamed polymer and a SCORIM formed polymer article. The improvement includes the step of dispersing a multi-layered silicate material with the polymer so that the polymer has dispersed therein single layers of silicate material, double layers of silicate material, triple layers of silicate material, four layers of silicate material, five layers of silicate material and more than five layers of silicate material, the volume percent of the one, two, three, four and five layers of silicate material greater than the volume percent of the more then five layers of silicate material. In each of the above embodiments an important benefit of the instant invention is the orientation of the plane of the layers of silicate material.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: November 16, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Richard F. Fibiger, Kyung W. Suh, Mark A. Barger, Joseph A. Schomaker, Wenbin Liang, George A. Mackey, Harvey C. Tung
  • Patent number: 6620474
    Abstract: Multilayer films comprising a quiet film layer having noise dampening properties and at least one second layer which are particularly useful for, ostomy bags (colostomy, ileostomy), trans-dermal delivery systems (TDDS), cosmetic patches, incontinence bags, medical collection bags, parenteral solution bags, and food packaging, as well as for protective clothing and soil fumigation applications. The quiet layer comprises a polymer resin or polymer resin composition having a Tangent Delta value of at least 0.25 at a temperature within the range of −5° C. and 15° C. or at least 0.32 at a temperature within the range of −12° C. to −5° C., and the at least one second layer has a storage modulus G′ equal to or greater than 2×104 N/cm2.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: September 16, 2003
    Assignee: Dow Global Technologies Inc.
    Inventors: Francois J. F. Regnier, Harvey C. Tung, Rochelle A. Woods, Jeffrey E. Bonekamp
  • Patent number: 6455161
    Abstract: Essentially amorphous non-chlorinated polymeric films are provided which are effective barriers to odors and organic molecules, making them particularly useful for ostomy bags (colostomy, ileostomy), trans-dermal delivery systems (TDDS), cosmetic patches, incontinence bags, medical collection bags, parenteral solution bags, and food packaging, as well as for protective clothing and soil fumigation applications. The barrier layers of the present invention can be used as monolayers or can be a component film of a multilayer structure. The barrier films may be used with or without other film layers that promote reduced noise emission. Alternately, single and multi-layer films may omit the barrier layer in favor of the reduced noise emission layers.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: September 24, 2002
    Assignee: Dow Global Technologies Inc.
    Inventors: Francois J. F. Regnier, Rochelle A. Woods, Harvey C. Tung, Jeffrey E. Bonekamp
  • Patent number: 6164739
    Abstract: A multilayer protective film useful in insulated wall structures of appliances such as refrigerators, freezers, or boiler units, for example. The multilayer protective film has a substantially polyolefin protective layer. The multilayer protective film also has a substantially polyolefin surface capable of bonding to polyurethane foam without the use of an adhesive. The multilayer protective film bonds to and protects thermoplastic liners from attack by blowing agents used in the production of polyurethane foam. The multilayer protective film is also adaptable to be regrind-compatible into thermoplastic liners made of styrenic polymers.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: December 26, 2000
    Assignee: The Dow Chemical Company
    Inventors: Thomas G. Schulz, Mark C. Danner, Glenda J. Cahill, Harvey C. Tung
  • Patent number: 6127032
    Abstract: A multilayer film useful for making plastic adhesive labels for glass substrates such as glass bottles. The multilayer films contain a base layer, an adhesive layer, and optionally an intermediate layer to improve interlayer bonding between the base layer and the adhesive layer. The adhesive layer comprises a heat-activated thermoplastic adhesive that is not tacky at room temperature. Films of the present invention are sufficiently non blocking at room temperature so as to not require the use of a separate release liner. The film can be utilized in conventional graphics printing operations and made into labels. Labels made from films of the present invention can be thermally adhered to glass substrates and exhibit sufficient adhesion to glass substrates to withstand washing/rinsing, filling, and pasteurization processes utilized in the bottling industry.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: October 3, 2000
    Assignee: The Dow Chemical Company
    Inventors: Robert H. Kelch, Harvey C. Tung
  • Patent number: 6042930
    Abstract: A multilayer film useful for making plastic adhesive labels for glass substrates such as glass bottles. The multilayer films contain a base layer, an adhesive layer, and optionally an intermediate layer to improve interlayer bonding between the base layer and the adhesive layer. The adhesive layer comprises a heat-activated thermoplastic adhesive that is not tacky at room temperature. Films of the present invention are sufficiently non blocking at room temperature so as to not require the use of a separate release liner. The film can be utilized in conventional graphics printing operations and made into labels. Labels made from films of the present invention can be thermally adhered to glass substrates and exhibit sufficient adhesion to glass substrates to withstand washing/rinsing, filling, and pasteurization processes utilized in the bottling industry.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: March 28, 2000
    Assignee: The Dow Chemical Company
    Inventors: Robert H. Kelch, Harvey C. Tung
  • Patent number: 6010783
    Abstract: A monolayer or multilayer label filmstock having low haze while maintaining sufficient stiffness and die-cuttability to be used in a deformable, pressure-sensitive label. The low haze allows the deformable labels to be substantially clear. The label filmstock comprises a polymer blend of a polyolefin and a glassy polymer.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: January 4, 2000
    Assignee: The Dow Chemical Company
    Inventor: Harvey C. Tung
  • Patent number: 5756173
    Abstract: A deformable label comprising a printable film facestock having at least one layer containing incompatible polymers. The printable film facestock exhibits significantly reduced die-face buildup during extrusion of the printable film facestock when compared to the die-face buildup exhibited by film facestock of the prior art. The present invention provides for monolayer film facestock containing incompatible polymers and colorants. The present invention also allows printable film facestock to be produced in a more cost-effective manner.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: May 26, 1998
    Assignee: The Dow Chemical Company
    Inventors: Harvey C. Tung, Steve Skapik
  • Patent number: 5712031
    Abstract: A multilayer film useful for making plastic adhesive labels for glass substrates such as glass bottles. The multilayer films contain a base layer, an adhesive layer, and optionally an intermediate layer to improve interlayer bonding between the base layer and the adhesive layer. The adhesive layer comprises a terpolymer of ethylene, 3-10 weight percent of an ethylenically unsaturated carboxylic acid (e.g. acrylic acid or methyacrylic acid), and 3-25 weight percent of an unsaturated ester (e.g., methyl, ethyl, or n-butyl acrylate or methacrylate). The base layer preferably comprises oriented polypropylene or oriented polyester, but may also comprise high density polyethylene or PETG. The multilayer film can be utilized in conventional graphics printing operations and do not require the use of a separate release liner.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: January 27, 1998
    Assignee: The Dow Chemical Company
    Inventors: Robert H. Kelch, Harvey C. Tung
  • Patent number: 5562962
    Abstract: Labelstock for in-mold labeling purposes which is characterized by a tensile ultimate elongation per ASTM D-882 of at least about 10% in one or both of the machine and transverse directions, and which contains a sufficient amount of one or more slip additives to prevent a significant degree of edge-welding between adjacent stacked sheets of the labelstock on a high type die cutter in an in-mold labeling process.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: October 8, 1996
    Assignee: The Dow Chemical Company
    Inventor: Harvey C. Tung
  • Patent number: 5455092
    Abstract: A labelstock which comprises a release-coated liner, a facestock including a layer consisting essentially of one or more nucleating agents of polyolefins and (a) one or more olefin homopolymers or (b) one or more copolymers of olefins or (c) a mixture of (a) and (b), and a pressure-sensitive adhesive for releasably joining the facestock to the release-coated liner.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: October 3, 1995
    Assignee: The Dow Chemical Company
    Inventor: Harvey C. Tung
  • Patent number: 5427727
    Abstract: Extrudable labelstock for in-mold labeling purposes which is characterized by a tensile ultimate elongation per ASTM D-882 of at least about 10% in one or both of the machine and transverse directions, and which contains a sufficient amount of one or more slip additives to prevent a significant degree of edge-welding between adjacent stacked sheets of the labelstock on a high type die cutter in an in-mold labeling process, and the improved in-mold labeling process employing such labelstock.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: June 27, 1995
    Assignee: The Dow Chemical Company
    Inventor: Harvey C. Tung
  • Patent number: 5356583
    Abstract: A coextruded film with both gas barrier and fire retardant properties as well as good physical properties is made up by melt coextrusion to form a four or five layer film product useful in making laminates for protective clothing or tarps. The five layer film has a Saran resin barrier core layer and LDPE skin layers on each face with intervening EVA glue layers. The four layer film has a Saran resin barrier core layer and a CPE skin layer on one face and an EVA skin layer on the other with an EVA glue layer between the barrier core layer and the CPE skin layer. Each skin layer and each glue layer contains about 8 to about 30 percent by weight of a polyhalogenated organic/antimony oxide fire retardant and a small amount of a slip agent.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: October 18, 1994
    Assignee: The Dow Chemical Company
    Inventor: Harvey C. Tung
  • Patent number: 5250350
    Abstract: A coextruded film with both gas barrier and fire retardant properties as well as good physical properties is made up by melt coextrusion to form a four or five layer film product useful in making laminates for protective clothing or tarps. The five layer film has a Saran resin barrier core layer and LDPE skin layers on each face with intervening EVA glue layers. The four layer film has a Saran resin barrier core layer and a CPE skin layer on one face and an EVA skin layer on the other with an EVA glue layer between the barrier core layer and the CPE skin layer. Each skin layer and each glue layer contains about 8 to about 30 percent by weight of a polyhalogenated organic/antimony oxide fire retardant and a small amount of a slip agent.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: October 5, 1993
    Assignee: The Dow Chemical Company
    Inventor: Harvey C. Tung
  • Patent number: 5238630
    Abstract: Extrudable labelstock for in-mold labeling purposes which has a tensile ultimate elongation per ASTM D-882 of at least about 10% in one or both of the machine and transverse directions, and which contains a sufficient amount of one or more slip additives to prevent a significant degree of edge-welding between adjacent stacked sheets of the labelstock on a high type die cutter in an in-mold labeling process, and the improved in-mold labeling process employing such labelstock.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: August 24, 1993
    Assignee: The Dow Chemical Company
    Inventor: Harvey C. Tung