Plastics Technology

MAY 2012

Plastics Technology - Dedicated to improving Plastics Processing.

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...Continued from p. 45 are designed for LED light guides and lenses. They utilize new technology that improves initial color, color stability, and light transmission during heat aging vs. standard PC. They retain 98% of initial light transmission when exposed to 130 C for more than 5000 hr and do even better at typical exposures of 90 C to 110 C. Additional new entries from Asahi Kasei Plastics include Xytron PV grades of modified PPE for solar-panel components. They carry UL 94V-0 and 5VA certifications (one meets 5VA at 2 mm) using nonhalogenated flame retardants. Also new is the Tenac Z-Series of acetal grades with low formaldehyde emis- sions. They are said to exceed the most stringent global automo- tive specs for VOCs. BASF highlighted its new Ultrason P 3010 polyphenylsul- fone (PPSU), which boasts a combination of high melting temperature, low water absorption, and impact and flame resistance. It's aimed at dental, surgical, and orthopedic in- struments and sterilization components, as well as aerospace interior parts and plumbing fittings. Nippon Goshei (nichigo.co.jp), represented in the Americas by Soarus LLC (soarus.com), launched what is said to be the first EVOH/nanoclay composite, the result of a licensing agreement with Spain's Nanobiomatters Industries (nanobiomatters.com). Nippon Gohsei has exclusive use of Nanobiomatters' O2Block Barrier nanoclay additive in EVOH composites. NC7003, the first in the new Soarnol NC series, is said to offer a notable improve- ment in barrier properties under high humidity, but with the same processability and film properties as standard EVOH. A.Schulman launched patented Polytrope STR cap resins for improving the appearance and physical performance of exterior applications ranging from agricultural, RV, and automotive to watercraft and lawn/garden equipment. The patent covers a coextruded multilayer product that provides a paint-free plastic sheet structure that can simulate the appearance of painted metal or plastic. Each cap resin can be coextruded with a Poly- trope STR TPO ranging in stiffness from 250,000 to 600,000 psi flex modulus. What's said to be the first use of PCR plastics in heavy trucks is brackets of the side air-deflection system on this Volvo 2012 model. SABIC Innovative Products uses depolymerized water bottles to make the Valox iQ PBT resin for these parts. New purging compounds include Purgex 602 Plus from Neu- trex Inc. (neutrex.com), a ready-to-use blend of nontoxic, nonabra- sive ingredients in a PS carrier that is designed for rapid change- overs from colored to clear PC, PS, and their copolymers processed at 360 F to 550 F. It offers dual-cleaning action, with mechanical cleaning properties plus a unique expanding foam turbulence. New mechanical, non-abrasive Dyna-Purge E2 was highlight- ed by Shuman Plastics Inc. (dynapurge.com) with results from recent trials at injection molder Fam-Lee Products Inc. (Loveland, Colo.). That processor purges as often as 10 times a day and was challenged with changeovers from black or colored nylons to a lower-temperature resin, such as white ABS. Use of Dyna-Purge E2 required only half as much purging compound. evolved visibility Eliminate the guesswork and know more about your tool's performance: • Track cycle times, activity percentage, maintenance • Compatibly sized with Pro's mechanical cycle counter Call 1-800-269-6653 to discuss how the CVe Monitor can connect you with your production tooling. PROCOMPS.COM/CVe PLASTICS TECHNOLOGY MAY 2012 61 counting is one thing... monitoring is another.

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