Centroplast boosts PP heat resistance
Centroplast Engineering Plastics GmbH has boosted the heat performance of polypropylene.
The company increased PP's heat resistance to 284° F from the more typical 212°-230° F. This means the resin can be autoclaved in sterilization procedures. Also, Centrolab HT/PP-HT resists acids and chemicals, said the Marsberg, Germany, firm. The product has a high mechanical load-bearing capacity and is very rigid.
Centroplast claims the material is well-suited to medical components, food and beverage, and chemical and pharmaceutical applications.
Tel. 49-2992-97-040, fax 49-2992-97-0430 e-mail [email protected]
PolyOne advances LFTs with OnForce
PolyOne Corp. has launched a series of long-fiber thermoplastic compounds.
The Avon Lake, Ohio, company says its OnForce LFT materials have optimized surface finish, stiffness and impact strength. PolyOne claims the compounds provide higher performance and better aesthetics than similar products used in metal replacement and structural applications.
OnForce LFT compounds retain performance and properties over a temperature range of 4°-320° F. PolyOne claims the products offer improved creep and fatigue performance, better dimensional stability, good chemical resistance and exceptional surface finish when compared with other long-fiber compounds and highly filled short-fiber products.
They can be processed on standard injection molding equipment. The series includes resins such as polypropylene, nylon 6/6 and thermoplastic polyurethane combined with glass and/or carbon fibers.
Tel. 440-930-1059, e-mail [email protected]
Repsol extrusion EBA cuts foam shrinkage
Repsol YPF's chemicals business has a new ethylene butyl acrylate polymer that reduces foam shrinkage.
EBA PA1715, aimed at general extrusion uses, also offers exceptional performance in microcellular foams for compression and injection molding. The Madrid-based firm claims it can be foamed under the same conditions as an ethylene vinyl acetate with similar characteristics. EBA PA1715 has 17 percent butyl acrylate content.
Repsol said the new material presents 60 percent less shrinkage, 40 percent higher elongation and 30 percent less loss due to abrasion compared with conventional foams. It also allows a 1 percent material saving.
Tel. 34-901-11-63-92; fax 34-91-348-82-54, e-mail [email protected] repsol.com.
Shin-Etsu develops new fluoroelastomer
Shin-Etsu Silicones of America Inc. has developed a new version of its liquid injection molding elastomeric material based on perfluoropolyether.
Akron, Ohio-based Shin-Etsu describes the Sifel 3000 products as flowable liquid forms of fluoroelastomer that are versatile and keep their elasticity down to minus 58° F. The materials show excellent chemical resistance to automotive and other fluids.
Sifel 3000 reacts with an addition curing system in the presence of a platinum catalyst. It usually cures at about 302° F, typically in about a minute.
Applications include replacing molded rubber parts in automotive O-rings, valves and seals. Electronics, semiconductor production machinery, office equipment and fuel cells are other potential uses.
Tel. 513-232-8917, e-mail ebishop @shinetsusilicones.com.
Solvay modified PEEK performs at less cost
Solvay Advanced Polymers LLC's modified polyetherether- ketone, AvaSpire AV-700, offers up to 30 percent cost reduction.
The formulation fills the cost/ performance gap between high-performance crystalline polymers like liquid crystal polymer and PEEK, an ultraperformance crystalline resin, and offers comparable properties like strength and modulus vs. similar PEEK grades, Solvay said. Uses include automotive, heavy-duty equipment, chemical processing and semiconductors, applications where they may be over-specified in PEEK.
Alpharetta, Ga.-based Solvay offers filled, unfilled and wear-resistant grades of AV-700.
Tel. 770-772-8760, e-mail advanced [email protected]
Novacel PET film protects laminates
Novacel SA, of Déville-lÃ¨s-Rouen, France, has a PET film that resists high-temperature post-forming.
Novacel 9230 is for smooth, shiny laminates protection. The colorless film is 25 microns thick, can be attached to substrates without solvent-based adhesives and is recyclable.
Tel. 33-232-82-72-33, e-mail aoth [email protected]
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