Abstract:
A polyamide composition, which includes an optical brightener together with either an antimicrobial agent or anti-oxidant stabilizer, or both, is suitable for making yarns, and fabrics, garments, molded articles or other articles such as carpets from these yarns. Processes for incorporating optical brighteners into polyamide compositions, polymers and yarns to make fabrics and molded articles that exhibit superior whiteness after heat-setting are also disclosed.
Abstract:
Ein textiles Flächengebilde weist einen Beschichtungsträger aus einer Anzahl von Kettfäden aus Multifilamentgarnen, die mit einer Anzahl von Schussfäden aus Multifilamentgarnen verwoben sind, auf. Der Beschichtungsträger des textilen Flächengebildes ist beidseitig mit einem Kunststoff beschichtet. Dabei beträgt das Verhältnis von maximaler Beschichtungsdicke zu minimaler Beschichtungsdicke bei einer Beschichtungsdicke über dem Beschichtungsträger von 0,15 mm bis zu kleiner/gleich 3,1. Die maximale, Beschichtungsdicke d.., entspricht dem Abstand angehobener Bogen eines Schussfadens von der planen Beschichtungsoberfläche des textilen Flächengebildes, die minimale Beschichtungsdicke min ist gleich dem Abstand abgesenkter Bogen des Schussfadens von der planen Beschichtungsoberfläche des textilen Flächengebildes. Ausgangspunkt dieser Beschichtungsdicken ist jeweils der Scheitelwert des angehobenen Bogens bzw. der tiefste Punkt des abgelenkten Bogens des jeweils betrachteten Schussfadens. Das Multifilamentgarn weist einen nicht-kreis-förmigen Querschnitt auf.
Abstract:
A polyester plain weave fabric construction wherein said fabric has a basis weight of between 150 to 300 g/m 2 with tongue tear strength equal to or better than nylon fabrics of the same construction and weight. The present invention relates to both coated and uncoated polyester filament woven fabric. The uncoated fabric is useful for industrial purposes wherein the fabric has a warp tongue tear resistance of at least 0.75 N/g/m 2, when the fabric basis weight is between 150 to 300 g/m 2 The preferred uncoated polyester filament yarn has a linear density of between about 200 to about 800 dtex, a tenacity of at least 65 cN/tex, a tensile index of at least 350. The fabrics can be coated with chloroprene, neoprene, polyurethane, silicone or other organic coatings to reduce air permeability. The fabric of the present invention may also be constructed with the warp and/or filling yarn having an aspect ratio between 1.2 and 6.
Abstract translation:聚酯平纹织物结构,其中所述织物的基重为150-300g / m 2,舌撕裂强度等于或优于相同结构和重量的尼龙织物。 本发明涉及涂布和未涂布的聚酯长丝织物。 未涂布的织物可用于工业目的,其中当织物基重为150-300g / m 2时,织物具有至少0.75N / g / m 2的经舌撕裂强度。优选的未涂布的聚酯 长丝纱具有约200至约800分特之间的线密度,至少65cN / tex的强度,至少350的拉伸指数。织物可以用氯丁二烯,氯丁橡胶,聚氨酯,硅树脂或其它有机涂层 以减少透气性。 本发明的织物也可以用纵横比在1.2和6之间的经纱和/或纬纱构成。
Abstract:
The present invention relates to a method for improving direct adhesion between an adhesive activated textile reinforcing material and an activated rubber. Moreover, the invention relates to a coating composition, a yarn, cord or fabric manufacturing process, a textile reinforcing material obtainable from said method having increased adhesion to rubber and a reinforced rubber article having improved dynamic fatigue properties.
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:
This document describes biochemical pathways for producing glutaric acid, 5-aminopentanoic acid, 5-hydroxypentanoic acid, cadaverine or 1,5-pentanediol by forming one or two terminal functional groups, comprised of carboxyl, amine or hydroxyl group, in a C5 backbone substrate such as 2-oxoglutarate, the substrate being 2-oxo-adipate.
Abstract:
The invention relates to an integrated system for the preparation of purified terephthalic acid (PTA) and the use of the PTA for the production of poly(ethylene terephthalate) (PET). Advantageously, the integrated system design described herein can minimize the possibility of contamination of the PTA production operation with reactant, catalysts, or impurities from the PET production operation. Methods of using the integrated system for the production of PET are also described.
Abstract:
A method for transforming a compound of formula IIa: to a compound of formula III: is provided, wherein A is a C 6 -C 10 alkene chain with at least one double bond, R 1 is a C 1 -C 10 alkyl, and R 3 is an oxygen-containing functional group.
Abstract:
A system for the preparation of a polyamide comprises a primary polymerization system configured to convert one or more starting materials to a polyamide product, a conduit downstream from the primary polymerization system, the conduit configured to transfer the polyamide product, and a feed line including an output into the conduit, wherein the feed line is configured to feed a copper-containing composition into the conduit. A method of forming a polyamide composition comprises polymerizing one or more starting materials in a primary polymerization system to form a polyamide product, transferring the polyamide product from the primary polymerization system in a conduit, and feeding a copper-containing composition into the conduit downstream of the primary polymerization system.
Abstract:
The present invention relates to methods, systems, and apparatus for making polyamides having at least two heat-transfer media. The method includes heating a first flowable heat-transfer medium, to provide a heated first flowable heat-transfer medium. The method includes transferring heat from the heated first flowable heat-transfer medium to a second flowable heat-transfer medium, to provide a heated second flowable heat-transfer medium. The method also includes transferring heat from the heated second flowable heat- transfer medium to at least one polyamide-containing component of a polyamide synthesis system.