New flame retardant contains no halogen
Great Lakes Chemical Corp. extended its flame-retardant offerings with three new products that it will feature at K 2004 in Dusseldorf, Germany, in October.
Two grades are aimed at electrical components such as connectors, relays and switches. Firemaster BP411 is a brominated polystyrene additive and Firemaster CP-44HF is a polybrominated styrene copolymer. Each shows thermal stability, good flow and blister resistance in thermoplastic polyester and high- temperature polyamide applications, the firm said.
The Indianapolis company said it will launch a halogen-free flame retardant for polyurethane foam. Great Lakes said the additive mainly targets automotive applications to help processors meet stringent emission requirements.
Other new products Great Lakes will show at K include a novel range of ClearLite nucleating agents and clarifiers, antioxidant stabilizer systems and PET production catalyst PetCat, a specialty antimony trioxide resulting from Great Lakes' recent joint venture with Laurel Industries Inc. of Cleveland.
Tel. (765) 497-6111, fax (765) 463-2188, e-mail [email protected] glcc.com.
Copolyesters target rubber replacement
Ticona in Florence, Ky., is marketing its Riteflex MT 9000 series of copolyesters for the medical market, viewing it as a replacement for rubber in syringe stoppers and as a material for high-end intravenous bags.
The company said the thermoplastic elastomers can be used in repeat-use food-contact applications and in transdermal patches, and contain no plasticizers or animal ingredients. The resins comply with U.S. Pharmacopeia Class VI standards and Food & Drug Administration regulations.
The seven grades of the resin can be sterilized with common methods, from autoclaving to gamma radiation, the firm said.
Tel. (606) 525-4740, e-mail prod [email protected]
Teknor Apex TPVs cover middle ground
Teknor Apex has developed a thermoplastic vulcanizate it claims fills the gap between standard TPVs and expensive engineering grades.
Uniprene XL provides long-term resistance to heat and solvents, high tensile strength and better long-term elastic recovery than conventional TPVs, according to the Pawtucket, R.I., company. Appliance, automotive and construction are among target markets.
The compounds are more rubberlike than traditional TPVs, meeting stringent needs of dynamic parts exposed to repeated flexing and harsh environments.
Tel. (401) 725-8000, fax (401) 728-5680, e-mail [email protected] apex.com.
Nanosized additives are scratch resistant
BYK-Chemie of Wesel, Germany, is offering two new scratch-resistant additives it developed with Nanophase Technology Corp. of Romeoville, Ill.
Nanobyk-3600 is a water-based dispersion of nanosized alumina particles. It significantly improves scratch resistance of ultraviolet-light-cured coatings applied to substrates such as vinyl flooring, the firm said. BYK-Chemie recommends addition levels of 0.5-5 percent in the coatings.
Nanobyk-3601 is a dispersion of nanosized alumina in tripropylene glycol diacrylate. It imparts scratch resistance in fully UV-curable coatings when added to the coating at levels of 0.5-5 percent.
Tel. (49) 281-6700, fax (49) 281-670-35, e-mail [email protected]