# Copolyester > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Copolyester > Markdown URL: https://mediated.wiki/source/Copolyester.md > Source: https://en.wikipedia.org/wiki/Copolyester > Source revision: 1344145077 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Short description|Polyester made of 2 or more different monomers}} A '''copolyester''' is a [copolymer](/source/copolymer) synthesized by modification of [polyesters](/source/polyesters), which are combinations of [diacid](/source/diacid)s and [diol](/source/diol)s. For example, by introducing other diacids, such as [isophthalic acid](/source/isophthalic_acid) (IPA), or other diols, such as [cyclohexane dimethanol](/source/cyclohexane_dimethanol) (CHDM) to the polyester [polyethylene terephthalate](/source/polyethylene_terephthalate) (PET), the material becomes a copolyester due to its comonomer content.''Copolyester – A Versatile Choice for Medical Applications'' Thijs Jaarsma. 2004. Business Briefing: Medical Device Manufacturing & Technology. Copolyesters{{Cite web|url= https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6235647 retain their strength, clarity, and other mechanical properties even when exposed to a variety of chemicals that typically affect other materials, such as [polycarbonate](/source/polycarbonate)s. This, plus their versatility and flexibility, allows manufacturers to use them effectively in the design of both high-volume, low-cost parts as well as critical, more expensive component parts. ==Applications== Copolyesters offer versatility to meet a wide variety of applications. Copolyester resins have proved to be effective in [packaging](/source/packaging) applications, due to their toughness, versatility and chemical resistance. They are also frequently used in the manufacture and packaging of [consumer goods](/source/consumer_goods) and materials. Markets that rely on copolyesters include medical packaging, [home appliances](/source/home_appliances), consumer goods (pens, toys, sporting goods, etc.), and [cosmetics](/source/cosmetics), among others. As a filament it is used in the 3D printing industry. {{cite web|archive-url=https://web.archive.org/web/20090413230539/http://eastman.com/Brands/Eastar/Introduction/ |url=http://eastman.com/Brands/Eastar/Introduction/ |archive-date=2009-04-13 |title=EASTAR copolyester |website=Eastman |url-status=dead}}{{cite web|archive-url=https://web.archive.org/web/20090325140837/http://eastman.com/Brands/Eastar/Products/ |url=http://eastman.com/Brands/Eastar/Products/ |website=Eastman |title=EASTAR copolyester - Product List |archive-date=2009-03-25 |url-status=dead}}{{cite web |url=http://www.bostik-us.com/our-brands/vitel/default.html |title=Vitel – All Brands at Bostik Provide High-Performance Adhesives, Sealants & More for Commercial & Residential Applications |accessdate=2011-03-22 |url-status=dead|archiveurl=https://web.archive.org/web/20110316160118/http://www.bostik-us.com/our-brands/vitel/default.html |archivedate=2011-03-16 }}{{Cite web |title=DYNAPOL® - high-molecular and medium-molecular copolyesters - Evonik Industries |url=https://www.dynapol.com/en/products-services/dynapol-types/dynapol-series |access-date=2023-03-19 |website=www.dynapol.com |language=en}}{{cite book|first1=John |last1=Scheirs|first2=Timothy E. |last2=Long|title=Modern Polyesters: Chemistry and Technology of Polyesters and Copolyesters|year=2003|oclc=85820031|location=Hoboken, NJ|publisher=Wiley Inc.|isbn=9780470090671|url=https://books.google.com/books?id=ZgxgZ5vfxTkC&q=chdm&pg=PR5}} '''Table of Common Copolyester and Components ''' {| class="wikitable sortable plainlinks" border=1 cellspacing=0 cellpadding=4 |- ! Polyester / Copolyester ! Diacid (s) ! Diol (s) ! Properties |- | [PET](/source/Polyethylene_terephthalate) | [Terephthalic acid](/source/Terephthalic_acid) (TPA) | [Ethylene glycol](/source/Ethylene_glycol) (EG) | |- | PCTG | TPA | [Cyclohexanedimethanol](/source/Cyclohexanedimethanol) (CHDM)+EG | |- | PCTA | TPA + [isophthalic acid](/source/isophthalic_acid) (IPA) | CHDM | |- | [PETG](/source/Polyethylene_terephthalate) | TPA | CHDM+EG | |- | PCT | TPA | CHDM | |} ==Manufacturers== The main global manufacturers and suppliers of Copolyester resins are as follows (The brand names are in parentheses): * [Eastman Chemical Company](/source/Eastman_Chemical_Company) – (Eastar, Provista, Tritan){{cite web|url=http://www.eastman.com/products/pages/polymers.aspx |website=Eastman |title=Product list for all polymers |url-status=dead |archive-url=https://web.archive.org/web/20140116180516/http://www.eastman.com/products/pages/polymers.aspx |archive-date=2014-01-16 }} *[Bostik](/source/Bostik) Findley – (Vitel) *[Toyobo](/source/Toyobo) – (Vylon) *[Evonik](/source/Evonik) – (Dynacoll S) *[SKChemical](/source/SK_Group) – (Skygreen, Ecozen, Skybon) *[Henkel](/source/Henkel) – (Petaflex) *[Covestro](/source/Covestro) (formerly Bayer MaterialScience AG) – (Vivak/ PETg) *Macroocean – (Marcoa, Marnex){{cite web |archive-url=https://web.archive.org/web/20220701142306/http://www.macroocean.com/productsandservices.html |archive-date=2022-07-01|url=http://www.macroocean.com/productsandservices.html |website=Macroocean |title=Product list}} *EMS CHEMIE - (Griltex) ==See also== *[Polyester](/source/Polyester) ==References== {{Reflist}} Category:Biomaterials Category:Carboxylate esters Category:Plastics Category:Polyesters --- Adapted from the Wikipedia article [Copolyester](https://en.wikipedia.org/wiki/Copolyester) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Copolyester?action=history)). 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