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Inventor:
Stewart; Mark Edward
Address:
Kingsport, TN
No. of patents:
16
Patents:












Patent Number Title Of Patent Date Issued
8133417 Process for the preparation of transparent shaped articles March 13, 2012
Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates,
8058360 Polyester blends exhibiting low temperature toughness November 15, 2011
Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, fr
8057726 Screw designs having improved performance with low melting PET resins November 15, 2011
Disclosed is a process for a melt processing a polyethylene terephthalate resin characterized by one or more of the following. The polyester particles may have at least two melting peaks wherein one of the at least two melting peaks is a low peak melting point with a range from 140.d
7985456 Oxygen-scavenging polymer blends suitable for use in packaging July 26, 2011
Polymer blends are disclosed that comprise one or more polybutadiene homopolymers or copolymers having at least one functionality capable of entering into condensation reactions; one or more polyethylene terephthalate homopolymers or copolymers obtained using a catalyst system compri
7964258 Transparent, oxygen-scavenging compositions and articles prepared therefrom June 21, 2011
Disclosed are oxygen-scavenging polymer compositions having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, a copolyamide or a transamidized, homogeneous blend of a least two
7959998 Transparent, oxygen-scavenging compositions containing polyesters comprising a cyclobutanediol a June 14, 2011
Disclosed are oxygen-scavenging polymer compositions having high transparency and low haze comprising immiscible blends of at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol, a copolyamide or a transamidized, homogeneous blend of a least two polyamides, and a m
7959836 Process for the preparation of transparent, shaped articles containing polyesters comprising a c June 14, 2011
Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze, and comprising immiscible blends of at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutane
7955533 Process for the preparation of transparent shaped articles June 7, 2011
Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates,
7786252 Preparation of transparent multilayered articles August 31, 2010
Disclosed is a process for the preparation of multilayered, shaped articles having high transparency and low haze having at least one layer contains one or more thermoplastic polymers selected from polyesters, polycarbonates, and homogeneous blends thereof, and a separate layer which
7641950 Polyester/polyamide blend having improved flavor retaining property and clarity January 5, 2010
This invention relates to a polyester/polyamide blend having an excellent gas barrier property. More particularly, the present invention relates to combinations of a polyethylene terephthalate polymer and a polyamide polymer having an excellent gas barrier property and short oxygen s
7521523 Oxygen-scavenging polyester compositions useful in packaging April 21, 2009
Oxygen-scavenging polyester compositions are disclosed that comprise one or more polyesters having incorporated therein residues of 3-hexenedioic acid and terephthalic acid. The compositions may further comprise residues of one or more aliphatic dicarboxylic acids such as adipic acid.
7462684 Preparation of transparent, multilayered articles containing polyesters comprising a cyclobutane December 9, 2008
Disclosed is a process for the preparation of multilayered, shaped articles having high transparency and low haze and in which at least one layer contains at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol and a separate layer which contains a transamidized, ho
7375154 Polyester/polyamide blend having improved flavor retaining property and clarity May 20, 2008
This invention relates to a polyester/polyamide blend having an excellent gas barrier property. More particularly, the present invention relates to combinations of a polyethylene terephthalate polymer and a polyamide polymer having an excellent gas barrier property and short oxygen s
7288586 Polyester based cobalt concentrates for oxygen scavenging compositions October 30, 2007
A solid concentrate is provided having a combination of a transition metal present in an amount ranging from 1000 to 40,000 ppm (weight by metal) and a polyester polymer present in an amount of at least 40 wt. % based on the weight of the concentrate. Concentrates made with highly modifi
6777479 Polyamide nanocomposites with oxygen scavenging capability August 17, 2004
Polymer composite materials comprising of least one polymer resin and platelet particles from at least one layered silicate material uniformly dispersed in the resin and articles prepared from the polymer composite materials. The polymer composite contains at least one polyamide resin, a
6455620 Polyether containing polymers for oxygen scavenging September 24, 2002
The present invention relates to oxygen scavenging compositions comprising an oxidation catalyst and at least one polyether selected from the group consisting of unsubstituted poly(alkylene glycol)s having alkylene chains of 1 to 3 carbon atoms, substituted or unsubstituted poly(alkylene










 
 
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