Patents by Inventor Anthony R. Knoerzer
Anthony R. Knoerzer 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).
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Patent number: 5604042Abstract: A polymeric film structure having improved oxygen, flavor/odor, grease/oil and moisture barrier characteristics is disclosed. The structure includes a polymeric substrate adapted to receive an oxygen barrier on one side thereof and a moisture barrier on the other side of the oxygen barrier. The oxygen barrier includes polyvinyl alcohol cross-linked with aldehyde containing cross-linking agents in the presence of a catalytic amount of sulfuric acid. The moisture barrier can be provided by the carrier web or incorporated into the cellulosic material, which is preferably box board.Type: GrantFiled: December 19, 1995Date of Patent: February 18, 1997Assignee: Mobil Oil CorporationInventors: Eber C. Bianchini, Anthony R. Knoerzer, Larry A. Parr, Leland W. Reid
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Patent number: 5552212Abstract: A film combination has a pair of polymeric substrate films. At least one surface of each has a surface free energy of at least 35 dynes/cm and a primer coating on each. Each primer coating has a layer of poly(vinylalcohol) containing a cross-linking means. Each film of the pair is positioned with the poly(vinylalcohol) layers in intimate contacting relationship before any substantial cross-linking occurs.Type: GrantFiled: December 13, 1990Date of Patent: September 3, 1996Assignee: Mobil Oil CorporationInventor: Anthony R. Knoerzer
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Patent number: 5547764Abstract: The present invention is a method of producing low oxygen-transmissive films having PVOH coatings through the utilization of a PVOH solution which includes at least two PVOH resins having differing degrees of hydrolysis. The present invention is also a low oxygen-transmissive film manufactured by this method.Type: GrantFiled: December 22, 1994Date of Patent: August 20, 1996Assignee: Mobil Oil CorporationInventors: Marcia Blais, Anthony R. Knoerzer
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Heat sealable muliilayer film comprising evoh skin and acrylic coating and its method of preparation
Patent number: 5529834Abstract: A multilayer heat sealable film comprises:(a) a polyolefin film substrate layer;(b) a layer of an ethylene vinyl alcohol copolymer (EVOH), and(c) a heat sealable acrylic polymeric coating applied to (b).The film exhibits excellent oxygen and aroma barrier, and low minimum seal temperature (82.degree. C.).Type: GrantFiled: December 2, 1994Date of Patent: June 25, 1996Assignee: Mobil Oil CorporationInventors: Mingliang L. Tsai, Anthony R. Knoerzer -
Patent number: 5525421Abstract: A metallized film combination comprising an oriented polypropylene substrate layer, at least one surface of which having a coating of a vinyl alcohol homopolymer or copolymer hydrolyzed to at least 95% at a pH of greater than 5.0, said coating having a metal layer thereon. The high pH PVOH hydrolysis conditions provide a metallized product of high metal adhesion and good water and oxygen barrier properties.Type: GrantFiled: November 25, 1994Date of Patent: June 11, 1996Assignee: Mobil Oil CorporationInventor: Anthony R. Knoerzer
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Patent number: 5512338Abstract: A polymeric film structure having improved oxygen, flavor/odor, grease/oil and moisture barrier characteristics is disclosed. The structure includes a polymeric core sandwiched between an oxygen barrier on one side thereof and a moisture barrier on the other side of the polymeric core. The oxygen barrier includes polyvinyl alcohol cross-linked with aldehyde containing cross-linking agents in the presence of a catalytic amount of an inorganic acid, preferably sulfuric acid. The moisture barrier is a coating of polyvinylidene chloride, which also enhances the oxygen barrier of the polymeric film structure.Type: GrantFiled: July 21, 1994Date of Patent: April 30, 1996Assignee: Mobil Oil Corp.Inventors: Eber C. Bianchini, Anthony R. Knoerzer, Larry A. Parr, Leland W. Reid
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Patent number: 5508113Abstract: Coating compositions which have improved oxygen and flavor/odor barrier characteristics are disclosed. The coating compositions are obtained by coating a polymeric substrate with an aqueous solution of polyvinyl alcohol and urea and drying the coating at a temperature sufficient to allow the polyvinyl alcohol and urea to crosslink such that urethane linkages are formed at least between the polymeric substrate and the coating composition. Polymeric film structures including coating compositions and a method of making the same are also disclosed.Type: GrantFiled: November 18, 1994Date of Patent: April 16, 1996Assignee: Mobil Oil Corp.Inventor: Anthony R. Knoerzer
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Patent number: 5487940Abstract: A polymeric film structure having improved oxygen and moisture barrier characteristics is disclosed. The structure includes a polymeric substrate adapted to receive an oxygen barrier on one side thereof and a moisture barrier on the other side of the oxygen barrier. The oxygen barrier includes polyvinyl alcohol cross-linked with aldehyde containing cross-linking agents in the presence of a catalytic amount of an inorganic acid, preferably sulfuric acid. The moisture barrier is a metallized polymeric composite, preferably metallized oriented polypropylene.Type: GrantFiled: August 31, 1994Date of Patent: January 30, 1996Assignee: Mobil Oil Corp.Inventors: Eber C. Bianchini, Anthony R. Knoerzer, Larry A. Parr, Leland W. Reid
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Patent number: 5391609Abstract: A transparent polymeric film that provides a barrier to the transmission of ultra-violet light. The film results from the addition of titanium dioxide particles having an average particle size less than the wavelength of visible light, yet greater than the wavelength of ultra-violet light, to a polymeric material capable of being formed as a transparent film. More specifically, the titanium dioxide particles have an average size on the order of from about 0.010 .mu.m to 0.050 .mu.m and, preferably from about 0.018 .mu.m to 0.040 .mu.m.Type: GrantFiled: June 2, 1994Date of Patent: February 21, 1995Assignee: Mobil Oil Corp.Inventors: Anthony R. Knoerzer, Leland W. Reid, Edwin M. Wheeler
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Patent number: 5380586Abstract: A low oxygen transmissive film combination having a substrate with a surface having a surface free energy of at least about 35 dynes/cm, a primer coating on one or both sides and an oxygen transmissive inhibiting layer of a poly(vinyl alcohol) and a cross-linking agent with a proportion of catalytically active sulfuric acid.Type: GrantFiled: June 24, 1993Date of Patent: January 10, 1995Assignee: Mobil Oil Corp.Inventors: Anthony R. Knoerzer, Robert E. Touhsaent
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Patent number: 5330831Abstract: A film combination includes (a) an oriented polymeric substrate which in its unmodified state is susceptible of transmitting oxygen and water vapor; (b) a primer coating on the substrate; (c) a layer of cross-linked polyvinyl alcohol on the primer layer; and (d) on the cross-linked layer a layer of a blend of (1) a polyvinyl alcohol homo or copolymer and (2) an ethylene-acrylic acid copolymer.Type: GrantFiled: December 20, 1991Date of Patent: July 19, 1994Assignee: Mobil Oil Corp.Inventors: Anthony R. Knoerzer, Leland W. Reid
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Patent number: 5330812Abstract: A composite material comprising a base liner with a release layer on at least one surface thereof, and a releasable face layer releasably adhered to the base liner through the release layer by a pressure sensitive adhesive, wherein the base liner has a skin layer on its surface proximate to the release layer which is more difficult to cut than the remainder of the base liner material, such that when the composite is subjected to die cutting or perforating to allow portions of the face layer to be selectively removed, the cutter will not penetrate into or through the base liner to any substantial extent.Type: GrantFiled: April 13, 1992Date of Patent: July 19, 1994Assignee: Mobil Oil Corp.Inventors: Anthony R. Knoerzer, Pang-Chia Lu, Conway F. Shields, Donald G. Whyman
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Patent number: 5230963Abstract: A multilayer film combination has a pair of base layers each of a blend of polypropylene and maleated polypropylene, each is machine direction oriented before receiving a coating of PVOH containing a cross-linking agent and each is mated with the PVOH coatings together before the combination is transverse direction oriented.Type: GrantFiled: December 20, 1991Date of Patent: July 27, 1993Assignee: Mobil Oil CorporationInventor: Anthony R. Knoerzer