Abstract:
This document describes a process for the high purity and high concentration recovery of monovalent products via continuous ion exchange from aqueous solution for further downstream purification.
Abstract:
Flame resistant fabrics made from yarns of cellulose fiber, polyamide fiber, and oxidized polymeric biregional fiber are provided. The fabrics comprise about 20 to about 90 percent by weight of cellulose fiber, about 3 to about 45 percent by weight of polyamide fiber and about 5 to about 35 percent by weight of an oxidized polymeric biregional fiber comprising an oxidized polymer selected from the group consisting of acrylonitrile-based homopolymers, acrylonitrile- based copolymers, acrylonitrile-based terpolymers, and combinations thereof.
Abstract:
This document describes materials and methods for producing 7-hydroxyheptanoic acid using a β-ketothiolase or a synthase and an alcohol O-acetyltransferase to form a 7-acetyloxy-3-oxoheptanoyl-CoA intermediate. This document describes biochemical pathways for producing 7-hydroxyheptanoic acid using a β-ketothiolase or a synthase and an alcohol O-acetyltransferase to form a 7-acetyloxy-3-oxoheptanoyl-CoA intermediate. 7-hydroxyheptanoic acid can be enzymatically converted to pimelic acid, 7-aminoheptanoic acid, heptamethylenediamine or 1,7 heptanediol. This document also describes recombinant hosts producing 7-hydroxyheptanoic acid as well as pimelic acid, 7-aminoheptanoic acid, heptamethylenediamine and 1,7 heptanediol.
Abstract:
The present invention provides an easy settable stretch fabric comprising three types of yarns: a rigid fiber, an elastic fiber, and a low-melt fiber, wherein the low-melt fiber comprises low-melt polymer which can be fused in the temperature between 60 °C to 200 °C, being higher than the temperature used for normal textile process and household laundry, but lower than the temperature used for heat setting elastic fiber. The low-melt fiber can be selected from a group of fibers made from modified polyester, nylon, and polypropylene and the copolymer from them in the form of staple or filament.
Abstract:
The present disclosure relates to masterbatch compositions used for preparing articles, preforms or containers comprising a base polyester, a transition metal-based oxidation catalyst, an alkali metal compound, and an alkaline earth metal compound. The masterbatch compositions have desirable viscosity characteristics and the prepared articles, preforms or containers using these masterbatch compositions have desirable mechanical, visual and gas barrier properties.
Abstract:
Methods are described herein that involve rotating or gently mixing nickel(II)-containing particles in a reaction vessel while heating the particles and flowing a reducing atmosphere through the reaction vessel for a time sufficient to generate free-flowing nickel metal (Ni(0)) from the nickel(II)-containing particles.
Abstract:
This document describes biochemical pathways for producing methacrylate from precursors such as pyruvate via isobutyraldehyde and isobutyryl-CoA, using enzymes such as one or more thioesterases, transferases, or dehydrogenases, as well as recombinant hosts expressing one or more of such enzymes.
Abstract:
Disclosed herein are methods for recovering diphosphonite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are treatments to enhance extractability of the diphosphonite-containing compounds.
Abstract:
This document describes biochemical pathways for producing adipic acid, 6-aminohexanoic acid, 6-hydroxhexanoic acid, hexamethylenediamine, caprolactam, or 1,6-hexanediol by forming one or two terminal functional groups, comprised of carboxyl, amine or hydroxyl group, in a C6 aliphatic backbone substrate. These pathways, metabolic engineering and cultivation strategies described herein rely on the enzymes or homologs accepting methyl ester shielded dicarboxylic acid substrates.
Abstract:
The present disclosure provides methods and apparatuses estimating casting throughput during casting process to provide polyamide pellets. The method of estimating casting throughput of an extruded polyamide polymer comprises measuring an amount of casting water flowing in to a casting apparatus typically from two or more locations, measuring the temperature of the casting water flowing in, and measuring the temperature of the casting water flowing out. Additional steps include calculating a heat transfer between the casting water flowing in and the casting water flowing out using the measured amount, and correlating the heat transfer to the casting throughput.