Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms

cpc code 34740 encompasses a diverse range of synthetic polymers that are essential building blocks for a wide array of products. These materials, including polyacetals, polyethers, epoxide resins, polycarbonates, alkyd resins, and polyesters, are fundamental to the plastics, coatings, and adhesives industries. They play a crucial role in the global economy, enabling the manufacture of consumer goods, construction materials, automotive components, and a host of other vital products.

The production of the materials covered under cpc code 34740 typically involves polymerization reactions. Polyacetals are synthesized through the condensation of formaldehyde with alcohols, while polyethers are produced by the reaction of epoxides with alcohols or other nucleophiles. Epoxide resins are formed by the reaction of epichlorohydrin with bisphenol A, and polycarbonates are made by the reaction of phosgene with bisphenol A. Alkyd resins are produced through the condensation of polyhydric alcohols, such as glycerol, with polybasic acids, such as phthalic anhydride. Polyesters, including polyallyl esters, are synthesized by the esterification of polyhydric alcohols with polybasic acids.

The production of the materials covered under cpc code 34740 requires a range of raw materials, including petrochemicals, alcohols, and other organic compounds. Specialized machinery, such as reactors, distillation columns, and extruders, are also essential for the various polymerization and processing steps involved. Energy, in the form of heat and electricity, is another critical input for these manufacturing processes.

The outputs of the industries covered under cpc code 34740 are widely used as inputs for a diverse range of downstream industries. Polyacetals, polyethers, and epoxide resins are commonly used in the production of 39200 Plastics products, 25930 Paints, varnishes and similar coatings, printing ink and mastics, and 32500 Manufacture of medical and dental instruments and supplies. Polycarbonates find applications in 29320 Manufacture of other parts and accessories for motor vehicles, 26100 Manufacture of electronic components and boards, and 27400 Manufacture of electric lighting equipment. Alkyd resins and polyesters are utilized in the manufacture of 25930 Paints, varnishes and similar coatings, printing ink and mastics, 31020 Manufacture of ovens, furnaces and furnace burners, and 31090 Manufacture of other fabricated metal products n.e.c..