Lehvoss North America (Pawcatuck, CT, US) has launched the LUVOCOM 70 series of high-performance compounds based on polyketone (PK). These compounds are designed to fill the gap between compounds based on technical thermoplastics like PA6, PA66 and acetal and high-performance thermoplastics such as polyphenylene sulfide (PPS), polyetherimide (PEI) and polyaryletherketone (PAEK). Lehvoss notes that this introduction is actually a relaunch; various LUVOCOM 70 products had been available until 2000, but had to be cancelled due to Shell Chemical’s discontinuation of Carilon PK polymer production. With the polymer now available, Lehvoss decided to start development of these new high-performance compounds. PK is a multi-use material that, Lehvoss says, offers inherently good tribological performance, as well as good hydrolytic stability, low permeability, good weld line strength and good processability with shorter cycle times compared to other technical polymers such as PA 66 and acetal. The LUVOCOM 70 line consists of three grades: 70-9045 reinforced with carbon fiber; 70-9046 lubricated with PTFE; and 70-9113/BK formulated for low wear and friction.
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Applications within the aerospace industry include loaded clips and brackets, interiors and seating among other commercial aircraft applications.