Patent application number | Description | Published |
20080255280 | Oxygen-scavenging polymer blends suitable for use in packaging - Polymer blends suitable for packaging are disclosed that include a transition metal; one or more polyamide homopolymers or copolymers; 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, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved oxygen-scavenging activity compared with blends made using polymers prepared with conventional catalyst systems. | 10-16-2008 |
20090186177 | POLYESTER MELT PHASE PRODUCTS AND PROCESS FOR MAKING THE SAME - Articles comprising at least one polyester polymer melt phase product comprising at least one polyethylene terephthalate polyester; at least one metal compound chosen from alkali metal-aluminum compounds; and from 5 ppm to 1000 ppm of at least one phenolic stabilizer. Also provided is a melt phase process for making a polyester polymer melt phase product comprising: forming a slurry comprising at least one glycol chosen from ethylene glycol and derivatives of ethylene glycol and at least one acid chosen from terephthalic acid and derivatives of terephthalic acid; adding 5 ppm to 1000 ppm of at least one phenolic stabilizer; and reacting said at least one glycol and said at least one acid in the presence of at least one catalyst chosen from alkali metal-aluminum catalysts. | 07-23-2009 |
20100069553 | POLYESTER MELT-PHASE COMPOSITIONS HAVING IMPROVED THERMO-OXIDATIVE STABILITY, AND METHODS OF MAKING AND USING THEM - Polyester compositions are disclosed that include a melt-phase polyethylene terephthalate polyester having incorporated therein residues of a monomer having two or more fused aromatic rings, and that also include aluminum, and optionally an alkali metal or an alkaline earth metal. Also disclosed are articles that include the disclosed polyester compositions, and processes for producing such polyester compositions, that include the steps of forming a mixture comprising ethylene glycol, at least one acid chosen from terephthalic acid and derivatives of terephthalic acid, and a monomer having two or more fused aromatic rings; and reacting the mixture in the presence of aluminum, and optionally an alkali metal or an alkaline earth metal, to obtain the melt-phase polyethylene terephthalate polyester. | 03-18-2010 |
20100069556 | POLYESTER MELT-PHASE COMPOSITIONS HAVING IMPROVED THERMO-OXIDATIVE STABILITY, AND METHODS OF MAKING AND USING THEM - Polyester compositions are disclosed that include a melt-phase polyethylene terephthalate polyester having incorporated therein residues of a monomer having two or more fused aromatic rings, and that also include titanium. Also disclosed are articles that include the disclosed polyester compositions, and processes for producing such polyester compositions, that include the steps of forming a mixture comprising ethylene glycol, at least one acid chosen from terephthalic acid and derivatives of terephthalic acid, and a monomer having two or more fused aromatic rings; and reacting the mixture in the presence of titanium to obtain the melt-phase polyethylene terephthalate polyester. | 03-18-2010 |
20100273956 | COPOLYESTERS HAVING IMPROVED THERMAL STABILITY AND METHODS FOR MAKING THEM - Processes for producing polyethylene terephthalate copolyesters are disclosed, that include the steps of:
| 10-28-2010 |
20120157604 | Polyesters Containing Particular Phosphorus Compounds Blended with Other Polymers - Described as one aspect of the invention are polymer blends comprising at least one polyester wherein the polymer blend comprises:
| 06-21-2012 |
20120157619 | Color in Titanium Catalyzed Polyesters - Described as one aspect of the invention are polyesters comprising
| 06-21-2012 |
20120302768 | OXIDATION PROCESS TO PRODUCE A CRUDE AND/OR PURIFIED CARBOXYLIC ACID PRODUCT - Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid. | 11-29-2012 |
20120302769 | OXIDATION PROCESS TO PRODUCE A CRUDE AND/OR PURIFIED CARBOXYLIC ACID PRODUCT - Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid. | 11-29-2012 |
20120302772 | OXIDATION PROCESS TO PRODUCE A CRUDE AND/OR PURIFIED CARBOXYLIC ACID PRODUCT - Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid. | 11-29-2012 |
20130095263 | POLYESTER COMPOSITIONS CONTAINING FURANDICARBOXYLIC ACID OR AN ESTER THEREOF, AND 2,2,4,4-TETRAMETHYL-1,3-CYCLOBUTANEDIOL - Described are polyesters comprising (a) a dicarboxylic acid component comprising 2,5-furandicarboxylic acid residues; optionally, aromatic dicarboxylic acid residues and/or modifying aliphatic dicarboxylic acid residues and 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues. The polyesters may be manufactured into articles such as fibers, films, bottles, coatings, or sheets. | 04-18-2013 |
20130095268 | POLYESTER COMPOSITIONS CONTAINING FURANDICARBOXYLIC ACID OR AN ESTER THEREOF AND CYCLOHEXANEDIMETHANOL - Described are polyesters comprising (a) a dicarboxylic acid component comprising 2,5-furandicarboxylic acid residues; optionally, aromatic dicarboxylic acid residues and/or modifying aliphatic dicarboxylic acid residues and 1,4-cyclohexanedimethanol residues. The polyesters may be manufactured into articles such as fibers, films, bottles, coatings, or sheets. | 04-18-2013 |
20130095269 | POLYESTER COMPOSITIONS CONTAINING FURANDICARBOXYLIC ACID OR AN ESTER THEREOF AND ETHYLENE GLYCOL - Described are polyesters comprising (a) a dicarboxylic acid component comprising 2,5-furandicarboxylic acid residues; optionally, aromatic dicarboxylic acid residues and/or modifying aliphatic dicarboxylic acid residues and ethylene glycol residues. The polyesters may be manufactured into articles such as fibers, films, bottles, coatings, or sheets. | 04-18-2013 |
20130095270 | POLYESTER COMPOSITIONS CONTAINING FURANDICARBOXYLIC ACID OR AN ESTER THEREOF, CYCLOBUTANEDIOL AND CYCLOHEXANEDIMETHANOL - Described are polyesters comprising (a) a dicarboxylic acid component comprising 2,5-furandicarboxylic acid residues; optionally, aromatic dicarboxylic acid residues and/or modifying aliphatic dicarboxylic acid residues, 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and 1,4-cyclohexanedimethanol. The polyesters may be manufactured into articles such as fibers, films, bottles, coatings, or sheets. | 04-18-2013 |
20130095271 | POLYESTER COMPOSITIONS CONTAINING FURANDICARBOXYLIC ACID OR AN ESTER THEREOF, ETHYLENE GLYCOL AND CYCLOHEXANEDIMETHANOL - Described are polyesters comprising (a) a dicarboxylic acid component comprising 2,5-furandicarboxylic acid residues; optionally, aromatic dicarboxylic acid residues and/or modifying aliphatic dicarboxylic acid residues, ethylene glycol residues, and 1,4-cyclohexanedimethanol residues. The polyesters may be manufactured into articles such as fibers, films, bottles, coatings, or sheets. | 04-18-2013 |
20130095272 | POLYESTER COMPOSITIONS CONTAINING FURANDICARBOXYLIC ACID OR AN ESTER THEREOF, CYCLOBUTANEDIOL AND ETHYLENE GLYCOL - Described are polyesters comprising (a) a dicarboxylic acid component comprising 2,5-furandicarboxylic acid residues; optionally, aromatic dicarboxylic acid residues and/or modifying aliphatic dicarboxylic acid residues, 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and ethylene glycol. The polyesters may be manufactured into articles such as fibers, films, bottles, coatings, or sheets. | 04-18-2013 |