2016 | Show review
Keltan Eco EPDM, made
from bio-ethyl- ene, has been used in window seals
and calendering stability or blended with linear Perbu- nan or Krynac grades in order to increase gradually dimensional stability. Replacing 25 parts of linear grade with this pre-crosslinked NBR will already give excellent performance in processing, says the company. The material is approved for food contact applica- tions, making it suitable for the production of hoses to transport liquid as well as solid foodstuffs. The company has also developed a number of bio-based EPDM compounds. “We are preparing for the future by developing a
more sustainable EPDM production technology,” said Niels van der Aar, head of technical service and application development for Keltan Elastomers. “Key examples include the use of Keltan ACE catalyst technology, and the recent introduction of Keltan Eco EPDM grades – the world’s first EPDM rubber based on bio-ethylene.” Keltan Eco EPDM is made from bio-based ethylene, which is derived from sugar cane and supplied by Braskem of Brazil. The bio-based content ranges between 50 and 70%. Studies have shown that the physical characteristics are identical to those of conventional products. Life cycle assessments of the materials show a 50%
reduction in CO2 emissions, compared to their conven- tional equivalents. The new grades are being applied in
a range of applications, including micro-porous automotive solid seals, flooring and window seals. Arlanxeo is a joint venture between Lanxess and
Saudi Aramco.
Arlanxeo’s new NBR grade meets the needs of high-end customers
Stable recyclate Baerlocher has introduced two new technologies for stabilising recycled materials. The main technology, developed by Baerlocher USA,
is the company’s Baeropol RST (resin stabilization technology). This is an anti-oxidant technology that allows the use of secondary anti-oxidant phosphites to
be eliminated or reduced – while maintaining resin properties through multiple heat histories. The company has incorporated the RST technology
into a line of preformulated One-Packs designed to provide economical resin stabilisation for the polyethyl- ene and polypropylene recycling industries. The new additive helps to raise melt stability, as well
as protecting against long-term ageing and colour fading. “We discovered it when we were working with
upstream customers,” said Gregory Andersen, business manager for Baeropol. He said that phosphites traditionally have solubility
problems – and can precipitate at loadings above 800ppm. “With Baeropol RST there are no solubility issues,”
he said. The fact that the additives are generally regarded as
safe (‘GRAS’), they do not need approval in order to be used in new applications. Baeropol RST also forms the basis of the company’s
T-Blends, which incorporates traditional stabilisers to provide economical, stabilisation for technically demanding, price-sensitive reprocessing markets. Arne Schulle, CEO of Baerlocher, added: “This
technology development, based on our extensive experi- ence in oleochemistry, is launching us into a new business environment.”
He said that this functional additives expertise was
separate to its more well-known presence in PVC additives.
Click on the links for more information: ❙
www.kraussmaffeiberstorff.com ❙
www.sikora.net ❙
www.battenfeld-cincinnati.com ❙
www.milacron.com ❙
www.evonik.com ❙
www.arlanxeo.com ❙
www.baerlocher.com
46 PIPE & PROFILE EXTRUSION | November/December 2016
www.pipeandprofile.com
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