696ef4c9-a4c7-446c-846f-cb1318f9a0afUnsaturated polyester, resin, at plantProcessesUS LCI DatabaseChemical ManufacturingPlastics Material and Resin Mnf.An average of 0.0014 kg of resin scrap is produced for every kilogram of unsaturated polyester resin produced; this scrap is sold for recycling. Possible differences in the mass balance stem from small amounts of inputs which are not included in the analysis, solid wastes shown as outputs that are not shown as inputs, as well as possibly some emissions from burning the overhead losses within the plant. Complete inventory data and metadata are shown in full in the final report, Life Cycle Inventory of Polymer Composites. The report is not publicly available. This report has been extensively reviewed within Franklin Associates by Rebe Feraldi, Anne Marie Molen, and Melissa Huff and has undergone partial critical review by ACMA members. Important note: although most of the data in the US LCI database has undergone some sort of review, the database as a whole has not yet undergone a formal validation process. Please email comments to lci@nrel.gov.
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Quality network: 320USProduction of unsaturated polyester resin by a polycondensation of dicarboxylic acids and glycol monomers. When the reaction is complete, the resulting fluid polyester is cooled and blended with a vinylic reactive monomer. Styrene is the most common reactive diluent used in UPR production. Water is a by-product of the esterification reaction and is continuously removed during the esterification step to drive the reaction to completion. This water is sent to a thermal oxidizer to eliminate the hydrocarbons. The waste heat generated from the thermal oxidation process is sometimes utilized to produce steam energy for re-use within the UPR production facility. In some manufacturing sites, the oxidized vapor is released directly to the air without capture and re-use of the waste heat. The final UPR product is shipped to composite fabricators via drum, tote, or bulk tankers where it is combined with other materials, such as fibers and fillers, and processed into a finished or semi-finished part.Unit process, single operationA weighted average using amount of unsaturated polyester resin produced at plant during 2010 was applied to the individual data collected from 6 unsaturated polyester companies for 9 plants in North America.1.0Data are from primary sources. The unsaturated polyester producers who provided data for this module verified that the characteristics of their plants are representative of US UPR production facilities. Data was collected from 100% of the companies producing UPR in the US.No statementFranklin Associates2017-01-01T00:00:00+01:00ILCD format 1.1Franklin Associates2017-01-01T00:00:00+01:0011.00.000Data set finalised; entirely publishedNREL US Life Cycle Inventory (USLCI) LibraryVarious (NREL USLCI)trueFree of charge for all users and usesGaBi (source code, database including extension modules and single data sets, documentation) remains property of thinkstep AG. thinkstep AG delivers GaBi licenses comprising data storage medium and manual as ordered by the customer. The license guarantees the right of use for one installation of GaBi. Further installations using the same license are not permitted. Additional licenses are only valid if the licensee holds at least one main license. Licenses are not transferable and must only be used within the licensee's organisation. Data sets may be copied for internal use. The number of copies is restricted to the number of licenses of the software system GaBi the licensee owns. The right of use is exclusively valid for the licensee. All rights reserved.US: Unsaturated polyester, resin, at plantOutput110.000Mixed primary / secondaryUnknown derivation