Patent application number | Description | Published |
20080242751 | PROCESSES FOR MANUFACTURING POLYESTERS FROM POST-CONSUMER POLYESTER - The present invention relates to processes for manufacturing polyesters The processes can be used for manufacturing polyesters from post-consumer polyesters. The processes include contacting a post-consumer polyester with at least one diol, at elevated temperature in presence of a catalyst, effecting a transesterification reaction. Biologically-derived diols can be used. | 10-02-2008 |
20090043020 | FLAME RETARDANT POLYTRIMETHYLENE TEREPHTHALATE COMPOSITION - Improved flame retardant polytrimethylene terephthalate compositions are provided by including a melamine cyanurate flame retardant additive. | 02-12-2009 |
20090123767 | ALIPHATIC-AROMATIC POLYESTERS, AND ARTICLES MADE THEREFROM - Sulfonated aliphatic-aromatic polyester compositions having improved thermal properties and biodegradability, and articles such as films, coatings and laminates, produced from the sulfonated aliphatic-aromatic polyester compositions, are provided. | 05-14-2009 |
20090131625 | Processes for making elastomeric polyester esters from post-consumer polyester - Processes for making elastomeric polyether esters from polyesters and polyols are provided. The processes can offer a reduction in manufacturing cost, energy use and a lower environmental footprint than conventional processes, particularly when the processes utilize post-consumer polyesters as starting materials. | 05-21-2009 |
20090146106 | FLUORESCENT POLY(ALKYLENE TEREPHTHALATE) COMPOSITIONS - Fluorescent poly(alkylene terephthalate) compositions are provided. The fluorescent poly(alkylene terephthalate) compositions contain fluorescent poly(alkylene terephthalate)s and are made from fluorescent compounds and poly(alkylene terephthalate) oligomers, or by polymerizing amine and acid monomers in the presence of fluorescent compounds. | 06-11-2009 |
20100044266 | Polyester Blends - Disclosed are molded articles comprising a thermoplastic polymer composition comprising, consisting essentially of, or prepared from (a) about 30% to about 99 weight % based on the combination of (a) and (b) of a poly(ethylene terephthalate) homopolymer or copolymer; and (b) about 1 to about 70% weight % based on the combination of (a) and (b) of a poly(trimethylene terephthalate) homopolymer or copolymer. Specific embodiments include injection-molded preforms and blown bottles. | 02-25-2010 |
20100044928 | Process for Shaped Articles from Polyester Blends - Disclosed is a process for injection stretch blow molding a thermoplastic composition comprising, consisting essentially of, or prepared from (a) about 30 to about 99 weight % based on the combination of (a) and (b) of a poly(ethylene terephthalate) homopolymer or copolymer; and (b) about 1 to about 70 weight % based on the combination of (a) and (b) of a poly(trimethylene terephthalate) homopolymer or copolymer, wherein the composition does not contain a crystallization accelerator. | 02-25-2010 |
20100105841 | POLY(TRIMETHYLENE TEREPHTHALATE)/POLY(ALPHA-HYDROXY ACID) BICONSTITUENT FILAMENTS - This invention relates to poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) biconstituent filaments, methods for making the same and end uses thereof. | 04-29-2010 |
20100227960 | PROCESS OF MAKING A POLY(TRIMETHYLENE TEREPHTHALATE) RESIN HAVING LOW CYCLIC DIMER CONTENT, AND COMPOSITIONS AND ARTICLES THEREFROM - A process for making a high viscosity poly(trimethylene terephthalate) (PTT) resin having a low cyclic dimer content of less than or equal to 1.1 wt % as determined with nuclear magnetic resonance analysis and an intrinsic viscosity in the range of 0.9 to 2.0 dL/g; the PTT resin composition provided by the process; and molded articles derived from the composition are disclosed. | 09-09-2010 |
20110097530 | Non-sulfonated Aliphatic-Aromatic Polyesters, and Articles Made Therefrom - Non-sulfonated aliphatic-aromatic polyester compositions having improved thermal properties and biodegradability, and articles such as films, coatings and laminates, produced from the non-sulfonated aliphatic-aromatic polyester compositions, are provided. | 04-28-2011 |
20110313125 | POLY(TRIMETHYLENE TEREPHTHALATE) PELLETS WITH REDUCED OLIGOMERS AND METHOD TO MEASURE OLIGOMER REDUCTION - The invention relates to the preparation of poly(trimethylene terephthalate) polymer pellets with reduced oligomers and a process for measuring the reduction of oligomers in PTT polymer which occurs when the polymer is subjected to a heat source. This reduction allows for lower polymer blooming due to reduction of oligomers in the polymer. | 12-22-2011 |