UrethanesADIPRENE® Low Isocyanate Prepolymers

Our application expertise and formulation know-how make us the supplier of choice for our customers. Depending upon the choice of prepolymer system, benefits can include:

• Reduced free monomer levels below 0.1% (below 1% for LF MDI) • Improved industrial hygiene, health and safety • Robust and easy processing: lower viscosity, longer pot life, faster demolding, with a range of curatives and catalysts • Excellent toughness • Dynamic performance: low heat build-up, fatigue resistance • High-temperature resistance

Technology Benefits

Product Range

ADIPRENE® Low-Free Isocyanate Prepolymers

As a complement to our portfolio of high-performance, hot-cast urethane prepolymers, Chemtura is a leading innovator in the development of Low-Free (LF) isocyanate urethane technology, which brings unparalleled performance and health and safety benefits to the market. We are the only manufacturer of LF urethane prepolymers across a wide range of chemistries including TDI, MDI, PPDI and HDI, and offer a full range of suitable curatives to make the highest performing cast urethane systems.

Due to environmental, health and safety (EH&S) concerns with regards to free isocyanate monomer content, all isocyanates are highly regulated. To properly protect the employee and the environment, it is necessary to ensure that proper engineering controls and industrial hygiene procedures are in place. A significant contributor to achieving excellent industrial hygiene standards is the introduction of Low-Free monomer prepolymer systems.

Chemtura is highly dedicated to Responsible Care® and has developed the ADIPRENE® LF product range to help cast polyurethane (PU) processors operate with better health and safety standards. ADIPRENE® LF Prepolymers based on TDI, HDI and PPDI are available with levels of free isocyanate below 0.1%, and prepolymers based upon MDI are available below 1.0%. Chemtura offers the global market the leading prepolymer technology that enables the PU processor to meet the ever increasing regulatory demands on free isocyanate.

MbOCA Replacement Technology

MbOCA is a curative commonly used to react TDI and LF TDI prepolymers. Within the applicable Europe Union (EU) countries, REACh legislation will ban the use of the MbOCA curative after 22nd November 2017, unless an authorization is granted. This legislation governs the use of this substance by PU processors in the EU REACh applicable countries. It also governs the import of MbOCA-based PU components with more than 0.1% free MbOCA into the EU REACh applicable countries.

Chemtura offers a complete portfolio of prepolymer systems to replace MbOCA and meet the various needs of processors currently using TDI/MbOCA or LF TDI/MbOCA systems. As a “systems house” we have the broadest range of available chemistries and have developed unique solutions to meet customers’ needs for performance, processing and economic benefit. This range of MbOCA replacement solutions includes ADIPRENE® LF Prepolymer Systems, which combine EH&S benefits for both the prepolymer and the curative. These systems dramatically improve levels of industrial hygiene for cast PU processing.

ADIPRENE® Low-Free TDI Systems for Easy Processing and Excellent Dynamics ADIPRENE® LF TDI Prepolymers take conventional TDI technology to the next level of performance and safety. By reducing free TDl levels to below 0.1%, these systems greatly improve workplace industrial hygiene and enable the use of PU prepolymer systems with lower viscosity, longer pot life, faster demolding and lower hysteretic heat build-up. ADIPRENE® LF TDI systems offer the most versatility for a wide range of applications.

ADIPRENE® Low-Free MDI Systems for Excellent Performance and Easy Processing ADIPRENE® LF MDI Prepolymers provide significant health and safety advantages due to Low-Free Isocyanate levels and the ability to cure with diols, in addition to a range of other suitable curatives. This ground-breaking innovation enables customers to pour parts with outstanding dynamic performance, excellent retention of properties, outstanding fatigue and abrasion resistance, and high load bearing capabilities. ADIPRENE® LF MDI demonstrates total improvement in terms of processing, performance and cost-in-use.

ADIPRENE® Low-Free PPDI Systems for Excellent Chemical Resistance and High-Temperature Performance ADIPRENE® LF PPDI Prepolymers combined with suitable curatives offer systems with very low heat build-up from hysteresis, excellent chemical resistance, and the best high-temperature performance ever seen in commercial polyurethane elastomers. Comparison of properties versus hydrogenated nitrile butadiene rubber (HNBR) at temperatures as high as 150°C (302°F) also shows that LF PPDI can even outperform this established and widely used high-temperature elastomer. ADIPRENE® LF PPDI enables the processor to make parts with excellence performance in extreme environments.

ADIPRENE® Low-Free HDI Systems for Outstanding Weatherability and Long Pot Life Our aliphatic ADIPRENE® LF HDI Prepolymers have less than 0.1% free HDI monomer and offer the best physical properties of any aliphatic system. The development of ADIPRENE® LF HDI technology minimizes volatility issues with HDI, enabling the PU processor to make components which provide excellent physical properties for applications requiring UV stability and weatherability.

The information contained herein is correct to the best of our knowledge. Your attention is directed to the pertinent Material Safety Data Sheets for the products mentioned herein.

All sales are subject to Chemtura’s standard terms and conditions of sale, copies of which are available upon request and which are part of Chemtura’s invoices and/or order acknowledgements. Except as expressly provided in Chemtura’s standard terms and conditions of sale, no warranty, express or implied, including warranty of merchantability or fitness for a particular purpose, is made with respect to the products described herein. Nothing contained herein shall constitute permission or recommendation to practice any invention covered by a patent without a license from the owner of the patent.

© 2016 Chemtura Corporation

The tradenames in this brochure are registered trademarks of Chemtura Corporation and/or its subsidiaries.

Responsible Care® is a registered service mark of the American Chemistry Council, Inc.Chemtura is dedicated to Responsible Care®, the chemical industry's initiative to protect the environment; ensure the safety and security of our operations; and safeguard the health and safety of our employees and neighboring communities. Our goal is to make continuous progress toward the vision of no accidents, injuries or harm to the environment. As active and responsible members of the communities in which we operate, Chemtura is committed to open communication with our employees and neighbors. We monitor the safe production, transportation and use of our products. Our employees are comprehensively trained to do their jobs safely and with minimum impact on the environment. We care about the future — for all of us. If you have any questions, or would like to comment on our Responsible Care program, please send an email to RCMS@chemtura.com.

©Copyright 2016. All rights reserved. The trade names in this brochure are registered trademarks of Chemtura Corporation and/or its subsidiaries. Printed in USA. ADIPRENE® LF TDI Brochure URETH/BR/3019/07July2016

NORTH AMERICAChemtura Corporation199 Benson RoadMiddlebury, Connecticut 06749 Customer Care: 203.573.2000

Chemtura Canada Co./Cie.25 Erb StreetElmira, Ontario N3B 3A3Phone: (800) 265-2157

LATIN AMERICAChemtura Corporation Mexico S de R.L. de C.V.Calzada de Guadalupe No. 410Colonia: El Cerrito Cuautitlan Estado de Mexico 54870Telephone: +(52 55) 5010 6602 /6607

Chemtura Ind. Quimica do Brasil LtdaAv. Brasil5333 - Distrito Industrial Rio ClaroSão Paulo, Brazil, CEP 13505-600 Telephone: +55-19-3522- 5083

EUROPE, MIDDLE EAST AND AFRICAChemtura Manufacturing UK Ltd. Tenax Road - Trafford Park Manchester M17 1WT United Kingdom Phone: +44-161-875-3800

ASIA/PACIFICChemtura (China) Holding Company Ltd. Room 1703-1705 China Fortune Tower, No.1568 Century Avenue,Shanghai 200122, P. R. ChinaPhone: +86-21-3866 6688

Visit us on the web at:www.chemtura.comwww.adiprene.com

Contact Information