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The article focuses on the passing of a respected writer in the plastics industry, who provided unparalleled insights for over a decade, leaving a significant void. It discusses the dominance of thermosets in the early history of plastics, highlighting the competitive landscape with the rubber industry, and traces the evolution of thermoplastics from their humble beginnings to becoming dominant materials by the mid-20th century.

In the last column, we reviewed the spectroscopy of the carbonyl group and that of ketones. We then analyzed our first C=O containing polymer. In this column, we continue to study C=O containing polymers by first reviewing the spectroscopy of the ester functional group and then analyzing the spectra of several important polyesters. Among the spectra we study is that of polyethylene terephthalate (PET), one of the most economically important polymers in the world. [ABSTRACT FROM AUTHOR]

The article present list of China's import & export in May, 2022 includes pure sodium chloride; chlorosulphuric acid; and tetrahydronaphthalene.

The article reports that The acrylonitrile industry has turned from excessive supply to short supply to loosened supply. With the rise of downstream ABS industry, the demand for acrylonitrile is increasing, turning the acrylonitrile market into supply tightness. As a result, the profits of acrylonitrile producers rose sharply from 2017 to 2019, which encouraged a big number of chemical producers and refining/ chemical integrated producers.

The article reports that Polyester production capacity decelerates in light of saturated market resources and increasingly fierce competition to meet the domestic and foreign textile and garment market demand, the production of China's textile industry. It mentions that the development of the national economy and continuous growth in social demand, domestic polyester PET production continues to grow.

The article traces the history of polymeric materials. Topics discussed include the discovery of the chemistry that allows for the process of crosslinking using a material like styrene monomer or vinyl acetate to create a thermosetting material, the introduction of the vinyl monomer styrene as a crosslinking agent and the commercialization of styrene at the start of World War II.

Statistics are presented related to the China's import & export in November 2021 which includes pure sodium chloride, lignite, not agglomerated, and crude benzene.

The article explores China PO self-sufficiency within reach on rising domestic capacities. Topics include the chlorohydrin process accounts for around 50% of China's propylene oxide (PO) capacity in 2020 and the rest are cooxidation, HPPO and CHP processes, China had 19 PO producers in 2020, of which, 13 are located in east China, with a combined capacity covering 69.3% of the domestic total.

In the article, the author discusses the history of polymeric materials, particularly aliphatic polyketone (PK). Also cited are some materials like nylons, polyesters, acetals, high-performance polymers polyetheretherketone (PEEK), and polyetherketone (PEK), the laboratory experiments to developed alipathic polyketone polymers, and the polymerization of PK.

27111390 liquefied butanes, nes 371251887 205533.11 40310783 23028.584 27111400 ethylene, propylene, butylene & butadiene, liquefied 35598353 19122.448 42930 88.328 27112100 natural gas 3189358664 781863.046 122762800 44304.498 27131190 petroleum coke,not calcined 438829713 54048.04 0 0 27132000 petroleum bitumen 350693075 119238.026 62430962 23957.926 27149010 natural bitumen and asphalt 2034600 544.379 173203 92.421 27150000 bituminous mixtures based on natural asphalt, on natural bitumen, 1668354880 472848.823 332790 326.649 on petroleum bitumen, on mineral tar or on mineral tar pitch 28011000 chlorine 55800 587.001 193150 132.513 28012000 iodine 453041 14399.953 0 0 28013020 bromine 5452379 19546.396 0 0 28030000 carbon (carbon blacks and other forms of carbon not elsewhere 8866211 26997.673 73716317 83289.501 specified or included) China's Import & Export in January 2021 Code Export Quantity (kg) Export value (US$1000) Description Import Quantity (kg) Import value (US$1000) Statistics CHINA CHEMICAL REPORTER April 6, 2021 32 WWW. [Extracted from the article]

It is estimated that during 2021 to 2023, the growth rate of China's polyester capacity will be below 5%, with bottle grade PET at about 10%; polyester Industry Chart 3 Polyester products' market trends in 2020 Chart 4 Polyester products profits, 2019-2020 RMB/t 1/2 1/26 PTA MEG Fiber grade PET Bottle grade PET Polyester filament yarns Polyester staple fiber 2/19 3/14 4/7 5/1 5/25 6/18 7/12 8/5 8/29 9/22 10/16 11/19 12/3 12/27 7 800 6 800 5 800 4 800 3 800 2 800 RMB/t Fiber grade PET Bottle grade PET Polyester filament yarns Polyester staple fiber 1/2 3/23 6/11 8/30 11/18 2/6 7/15 4/26 10/3 12/22 1 500 1 300 1 100 900 700 500 300 100 -100 -300 -500 CHINA CHEMICAL REPORTER April 6, 2021 19 WWW. Polyester filament yarns accounted for 54%, being the highest, followed by polyester bottle chips, accounting for 18%; then polyester staple fiber 13%; fiber grade polyester chips 11%; and films 4%. The increased decline of polyester filament yarn and polyester chips made their profits shrink sharply, and polyester filament yarn once fell into a loss. [Extracted from the article]

Statistics are given related to import quantity, import value, export quantity and export value of several chemicals including naphthalene, diesel engine, chlorine, iodine and bromine in China in November 2020.

The article offers information about the history of polymeric materials including nylons and polyesters. It mentions about the aromatic rings, an indispensable part of modern polymer chemistry, along with discusses the structure of the nylon polymer between the amide groups consists only of a chain of carbon with hydrogen atoms attached to the sides of the chain.

This edition of "Molecular Spectroscopy Workbench" discusses the use of two-dimensional IR correlation spectroscopy (2D-COS) in the characterization of polymer fibers. We will show how the heterocorrelation of polarized spectra of a polyethylene terephthalate (PET) provides another means to characterize the changes in the local bonding of the atoms in the polymer that are extracted from the orientation dependence of the spectra. We will use again the spectra of PET fibers, because the spectral bands of this polymer have been extensively interpreted so that the 2D correlations can be used to analyze the structural changes without the need to employ band-fitting, which is known to sometimes produce non-unique results. In particular, the 2D-COS algorithms will enable us to identify which changes occur simultaneously (either in the same direction or in the opposite direction), and which changes occur non-simultaneously or sequentially, and which changes are necessary in order for the polymer to crystallize. At the end, we will note how this information can be useful to polymer engineering. [ABSTRACT FROM AUTHOR]

El artículo se centra en los retos de reciclado de tereftalato de polietileno que causa la contaminación en el medio ambiente. Los temas discutidos incluyen la baja tasa de reciclado de botellas de PET; el uso de PET reciclado en la industria textil; y las iniciativas de sostenibilidad por las principales marcas como Adidas AG, Nike Inc. y Wal-Mart Stores Inc. para el uso de poliéster reciclado.

The article provides an overview of the air-supported structures that originated in the 1940s as a way to keep ice and snow accumulation off radars in Canada and Alaska. It mentions that air-supported structures are made from either a polyvinyl chloride-coated woven polyester or a nylon fabric that should comply with the National Fire Protection Association 701. Air-supported structures use two techniques, such as a heavier weight material and a lighter weight material using rib cast.

The article reports that Reliance Petroleum Retail has acquired the respective polyester businesses of Shubhalakshmi Polyesters Ltd. (SPL) and Shubhlaxmi Polytex. It mentions the acquisitions form part of Reliance's strategy to expand its downstream polyester business, direct polymerization route as well as extruder spinning with value addition through texturizing.

The article discusses the use of polybutylene terephthalate (PBT) polyester for catalyst and secondary reactions. It mentions that the basic reaction are formed with the help of ester by reaction of purified terephthalic acid (PTA) and alcohol and states the catalyzation of reaction of carboxyl groups (COOH) from the PTA. It also mentions that autolab reactor-based methodology was used for the evaluation of tetrahydrofuran (THF) formation.

The article discusses the outlook for the composite materials industry for 2014 and beyond. Topics addressed include the expected domination of the field by glass fiber composites, matrices to be provided by polyester resins, and the projected leadership of the motor vehicle and construction markets in the industry's growth. Also mentioned are the forecasts for composite materials supply and demand as well as trends in markets such as the aerospace, boatbuilding, and fuel-cell sectors.

El artículo discute el proceso de reciclaje, para transformar productos de desecho en nuevos materiales en el sector textil, con un enfoque en las tecnologías avanzadas en la industria de maquinaria textil. El artículo también se centra en una nueva línea de producción ofrecida por Trützschler Artificial Fibers, para la producción de fibras no tejidas, proceso de reciclaje y recuperación de granulado de poliéster a partir de botellas de PET.

The article discusses the incorporation of fiber-reinforced thermoset systems in industrial applications. Industry analysts see the potential for the use of unsaturated polyesters and epoxies. To bank on the increasing commercialization of composites, resin specialists have begun creating thermostat resin systems that could drive potentially significant expanded use of fiber-reinforced plastic. The mineral flame retardant alumina trihydrate is commonly used as a halogen-free alternative for thermo-set resins.

The article discusses the typical activities of a young and single professional engineer/scientist that mainly involve particles and powders. It defines such terms as nylon66, which is made from acrylonitrile, unplasticised polyvinyl chloride (uPVC) window frames, and electricity. The other terms that were defined include polyester, toothpaste and petrol.

The article describes how research and development work have led to the inclusion of polyurethanes in rigid forms and resin systems which meet the requirements of structural applications. Composite manufacturers are impressed with their fast-cure characteristics and high strength-to-weight ratios. As a result, polyurethane resins are now used in processes formerly dominated by polyesters, vinyl esters and epoxies. Similarly, polyurethane foams are increasingly utilized in fiber-reinforced core materials.

The article presents information on the Eastman Tritan copolyester from Eastman Chemical Co. It reveals that products molded from Tritan have less residual stress than ones molded in other types of thermoplastics such as polycarbonate. Tritan copolyester has been shown to be suitable for injection molding, injection-blow and stretching molding, sheet and flat film extrusion, and thermoforming.

The article offers information on polyester which is the Rodney Dangerfield of fibers. It mentions Research conducted by North Carolina State University for Cotton Incorporated shows that cotton degrades faster than polyester in all aquatic environments; and about fibers making their way into the waterways, cotton.