Eastman MXF221 copolyester, available as a clear-natural or opaque-colored polymer, provides excellent chemical resistance and durability and is uniquely suited for electronic medical device housings. Not only is it extremely tough and able to stand up to the daily stresses of hospital environments, but it's also compatible with branding initiatives.
 
Brand owners who use opaque polymers often require precise color matching and vibrant aesthetics to maintain their brand identities. Eastman MXF221 copolyester comes in a wide array of colors with the ability to align seamlessly with any brand standards.
 
Eastman Color Technology Center's color matching service is tailored to meet your specific requirements. Our specialists understand that there is no universal answer to your color and additive needs and that not all blends work well with all materials. We're able to mix colors and additives with cellulosics, copolyesters, and polyester alloys and have decades of experience producing color concentrates and additives for the polyester and copolyester markets.
 
By selecting the right color blend for MXF221, Eastman's Color Technology Center will work to ensure your application is successful. Learn more about our color capabilities here.

 

カリフォルニア大学サンフランシスコ校（UCSF）メディカルセンターの主任開発エンジニア、Richard Fechter氏へのインタビュー。興味深い同氏の話をお聞きください。 Richard shares his insights for better performing medical devices that are cleanable and serviceable and hold up to commonly and frequently used disinfectants. https://www.youtube.com/watch?v=5Om5qRX-ZmQ

On September 19, participants and vendors gathered in East Providence, Rhode Island, for Tritan on Tour: an exclusive event hosted by Eastman and NN, Inc. showcasing how new materials and manufacturing processes can improve medical device performance. Representatives from Henkel, PolyOne, Dukane, Manta, Goddard, and Ensinger were on hand to share the latest advancements in medical injection molding applications.

Attendees learned how to select the best materials and streamline the manufacturing process, and strengthen the future of health care. They also got the opportunity to network with manufacturers, design engineers, and distributors, and discuss solutions for working with Eastman Tritan™ copolyester.

Thanks to all who attended and made this a fantastic event! If you'd like more information please visit our website http://www.eastman.com/Markets/medical/Pages/Introduction.aspx

当社では、しばしばイーストマンの医療グレードポリマーを使用しての成形について素晴らしいご質問をいただいており、私たちもご回答と合わせてより詳細な情報を積極的に提供しています。ここに、最近寄せられたあるご質問への回答をご紹介します。
 
「イーストマンMXF 221コポリエステルについてですが、荷重たわみ温度とは何ですか？」
 
荷重たわみ温度（HDT）は、特定の荷重下でポリマーやプラスチックが変形する温度のことです。当社の最新製品、イーストマンMXF221コポリエステルのHDTは概ね下記の通りです。
 

熱特性
荷重たわみ温度
	0.455 MPa (66 psi)	ASTM D 648	94°C (201°F)
	1.82 MPa (264 psi)	ASTM D 648	83°C (181°F)

 
 
MXF221 is a biocompatible, fully compounded medical grade polymer that is uniquely suited for medical devices and electronic device housings. Developed from Eastman Tritan^™ copolyester, MXF221 offers superior chemical resistance to stringent disinfectants and drugs, improved durability, and greater longevity.
 
Thermal control is critical for injection molding. Keeping temperatures cooled below the HDT of MXF221 helps ensure successful demolding with no dragging or sticking of parts. Preparing a cooling strategy early in the tool design process can pay big dividends in cycle time and processability.
 
For more information on MXF221’s properties, check out its product data sheet.

 

イーストマンTritan^™コポリエステルは、透明性、強靭性、耐熱性、耐薬品性など、射出成形上・性能上の特性がユニークに混じり合っています。また、最低限の加工パラメータ調整さえすれば、既存の金型に注入することも可能。パフォーマンスと加工の面で全体的にバランスがとれていることから、Tritanは一般的に使用される多くのポリマーよりも柔軟性な設計ができるようになっています。Tritanが医療市場の成形部品に適した優れた選択肢である背景には、同製品の次のような特性があります。
 

• 強靭性： 並外れた強靭性・耐久性。Tritanを原料に使用した医療機器筐体は衝撃に強く、飛び散りにくいほか、極端な環境の下で持ちこたえることができます。
• 透明性：ガンマ線/電子ビームでの滅菌前/滅菌後とも、優れた透明性・色を維持します。
• Chemical resistance: Maintains part integrity when exposed to a wide range of harsh chemicals and disinfectants. This excellent chemical resistance also means improved ESC resistance during solvent bonding and other secondary operations.
• Heat resistance: Higher level of heat resistance, which some devices require to deliver their intended performance or for accelerated aging validation.
• Reduced scrap rates: Less defects due to black specks, flow marks, cracking, and breakage.
• No annealing required: Greater throughput and higher yield.
• Sustainability: Made without BPA, halogens, or ortho-phthalates.

 
For more information on the benefits of molding with Tritan, check out these resources on the advantages of using it in renal and blood contact devices.