Baytec®MAX - BaySystems - customized polyurethanes - Bayer ...
Baytec®MAX - BaySystems - customized polyurethanes - Bayer ...
Baytec®MAX - BaySystems - customized polyurethanes - Bayer ...
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Baytec ® MAX<br />
offers:<br />
Availability of Polyether and polyester systems<br />
For example hydrolysis- and microbe-resistant<br />
polyether systems (PTMEG “C4-Ether”) and<br />
various polyester systems.<br />
Suitability for use with a range of crosslinkers<br />
For example, the following crosslinkers can<br />
be used:<br />
Baytec ® XL TR, Baytec ® XL 3530,<br />
Baytec ® XL 1604, Baytec ® XL 1701,<br />
Baytec ® XL 1705,<br />
Lonzacure ® MCDEA, etc.<br />
Excellent processability<br />
The reactivity of Baytec ® MAX grades has been<br />
adjusted to enable the production of midsize<br />
and large elastomer parts.<br />
Excellent storage stability<br />
The outstanding stability of the prepolymers<br />
offers advantages for storage and processing.<br />
For example, there is no need to readjust<br />
plant parameters throughout the recommended<br />
storage period. One reason for this is that<br />
Baytec ® MAX prepolymers are less prone to<br />
dimerization than conventional prepolymers and<br />
prepolymers with higher percentages of MDI.<br />
Contact:<br />
Frank Muschiol<br />
Phone: +49 214 30 26319<br />
Fax: +49 214 30 9626319<br />
E-mail: frank.muschiol@bayerbms.com<br />
Dirk Passmann<br />
Phone: +49 214 30 23822<br />
Fax: +49 214 30 9623822<br />
E-mail: dirk.passmann@bayerbms.com<br />
<strong>Bayer</strong> MaterialScience AG<br />
<strong>BaySystems</strong><br />
D – 51368 Leverkusen<br />
www.bayer-baysystems.com<br />
MS00037501<br />
NEW to the Baytec ® package!<br />
Baytec ® MAX<br />
MDI amine-crosslinked<br />
prepolymers<br />
...now very, very slow!
MDI amine-crosslinked<br />
prepolymers<br />
With its new MDI prepolymers for higher-performance,<br />
easy-to-manufacture system components,<br />
<strong>Bayer</strong> MaterialScience is moving into<br />
industrial applications that were previously<br />
only accessible using TDI systems.<br />
The ultimate polyurethane elastomers<br />
The new Baytec ® MAX product group from<br />
<strong>Bayer</strong> MaterialScience combines the benefits of<br />
conventional MDI and TDI casting systems.<br />
Because it is far easier to process and is extremely<br />
stable, Baytec ® MAX provides elastomer<br />
manufacturers with a far more reliable material.<br />
The much reduced vapor pressure of the MDI<br />
is particularly popular with TDI processors.<br />
All of these factors are high up on the<br />
wish-list of every elastomer manufacturer<br />
who values reliability and quality.<br />
Properties<br />
Reduced vapor pressure<br />
The very low vapor pressure of Baytec ® MAX<br />
prepolymers is a great advantage during<br />
processing.<br />
Easy processing<br />
Crosslinking with diamines means that processors<br />
can manufacture high-quality polyurethane<br />
elastomers using a process that is far less sensitive<br />
than that used for conventional MDI systems.<br />
Mechanical processing<br />
Processing conditions and mixing ratios are similar<br />
to those of TDI systems. When using liquid<br />
crosslinkers, conventional MDI casting machines<br />
can often be used during production. As a<br />
result, switching to Baytec ® MAX can help avoid<br />
the need to invest in a new plant or machine.<br />
Manual processing possible<br />
Depending on which crosslinker has been selected,<br />
even manual processing is possible.<br />
Good combination of mechanical properties<br />
– excellent compression set<br />
– good tear propagation resistance<br />
– high tensile strength<br />
– low abrasion<br />
Broad range of hardnesses from 50 Shore A<br />
to 60 Shore D<br />
Besides the usual range of hardnesses from<br />
70 Shore A to 60 Shore D, the Baytec ® MAX<br />
range – when using Baytec ® XL 1701 or TMP/TIPA –<br />
now also offers polyurethane elastomers<br />
with improved abrasion resistance, tear propagation<br />
resistance and tensile strength –<br />
especially at hardnesses below 70 Shore A.<br />
High heat resistance<br />
Thanks to diamine crosslinking, Baytec ® MAX<br />
offers greater heat resistance than glycolcrosslinked<br />
MDI systems. The result is that,<br />
when using Baytec ® XL 1604, shear<br />
modulus (stiffness) remains unaltered over a<br />
temperature range of approximately 30 – 130 °C.<br />
Elastomers that have been crosslinked<br />
using MCDEA exhibit far greater heat resistance.<br />
Excellent compression set values<br />
The extremely low compression set values are<br />
ideal for applications where materials have<br />
to recover from loads rapidly, and they significantly<br />
outperform elastomers made from<br />
thin-film TDI polymers.<br />
Compression set values: Baytec ® MAX<br />
– approx. 70 Shore A (PTMEG/Baytec ® XL 1701)<br />
after 24h/100°C approx. 45%<br />
– approx. 55 Shore A (Polyester/TMP/TIPA)<br />
after 24h/70°C