GE, Autotupe making hard-coated PC films
GE Structured Products and Autotype International are teaming up to develop and offer hard-coated polycarbonate films for insert molding.
The firms claim new, hard-coated PC films will be able to draw at depths of as much as 4 inches without degradation of the hard surface. GE said deep-draw capabilities will open new applications in automotive, appliance and other markets.
The partners will develop products based on GE's Lexan films and Autotype's coating technology and invest in application technology. Personnel from both companies will work with potential customers in value-added markets. GE is based in Pittsfield, Mass., and Autotype is in Wantage, England.
The first three products will be Lexan films with AutoForm, HiForm and XtraForm hardcoats. The films are to have progressively deeper draw ratios — from 2.5 times its thickness for the AutoForm products, to as much as 200 times for the XtraForm product.
Contact GE Structured Products at tel. (800) 451-3147 or (413) 448-5400, fax (413) 448-7731.
Dow Corning offering line of solid silicones
Dow Corning Corp. has introduced solid silicone masterbatches for acetal and styrenic compounds.
The Midland, Mich., firm said the acetal material at low levels improves processing and reduces extruder torque and molded part warpage compared with lower-molecular-weight alternatives. At higher levels it enhances surface products and reduces friction in parts such as gears and pulleys, Dow Corning claims.
Dow Corning MB40-006 is a 40 percent dispersion of an ultrahigh-molecular-weight silicone in Ticona's Celcon M270 acetal copolymer. The acetal has a melt-flow index of 27 grams per 10 minutes.
The firm's MB50-008 is a 50 percent dispersion of UHMW silicone in Dow's Tyrel 100 styrene-acrylonitrile resin, which has a melt flow of 8 grams per 10 minutes.
The styrenic masterbatch improves processing and surface properties at low levels. At high levels it significantly betters surface properties and lubricity for styrene acrylonitrile, ABS and other styrenics.
Tel. (517) 496-6000, fax (517) 496-4586.
LNP touting Questra as lower-cost option
LNP Engineering Plastics' new SPS series of Questra composites are low-cost alternatives to more-expensive materials such as polyphenylene sulfide and liquid crystal polymers, the Exton, Pa., firm claims.
A 30 percent glass-filled SPS has tensile strength of 20,000 pounds per square inch and flexural modulus of 1.6 million psi. Glass-fiber grades have a specific gravity of only 1.25 and their moisture absorption is low.
LNP said SPS materials have a heat-distortion temperature of 480° F.
LNP also said its Verton structural composites are now available in ultraviolet-stabilized grades. The glass-fiber-reinforced nylons and polypropylenes retain 90 percent of tensile strength and modulus after accelerated Xenon arc testing, according to the company.
Tel. (610) 363-4500, fax (610) 363-4749, e-mail [email protected]