Multiscrew

color

Color Masterbatch Captures Look of Aluminum

A new color masterbatch is said to offer an upscale, trendy alternative to brushed aluminum.

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Multiscrew

Velsicol Unit Changes Name

Genovique Specialties Corp., Rosemont, Ill., is the new name for the Plastic Additives, Benzoic Acid & Derivatives business of Velsicol Chemical Corp.

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Multiscrew

Colloidal Silica Processing Aid Slashes Molding Cycle Times

Ultra-fine synthetic silica particles have been shown in laboratory and commercial field trials to reduce injection molding cycle times by 20% to 30% in polypropylene, filled and unfilled nylon, PBT, and ABS.

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High-Speed Extrusion: Are You Ready for the Fast Lane?

Around three dozen, mostly European, processors are pushing commercial development of high-speed single-screw extrusion. They have installed more than 100 of the small hyper-drive machines whose screws turn at up to 1500 rpm, about eight to 10 times faster than standard extruders. At least two German machine builders are working on machines that will go to 2000 rpm and even higher. The goal is to raise output without increasing extruder size.

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Multiscrew

Novel Liquid Modifiers for Polyolefins Have Multiple Functions

A family of liquid polymer modifiers with a proven track record in EPDM compounds has been expanded for use in a broad range of polyolefins.

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Multiscrew

PolyOne to Close Seven Plants

WEB EXCLUSIVE Over the next nine months, PolyOne Corp., Avon Lake, Ohio, will close seven production facilities in North America and one in the U.K. as part of an overall realignment of its manufacturing assets.

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Multiscrew

Dow to Buy Rohm and Haas

Dow Chemical Co., Midland, Mich., has signed a definitive agreement to acquire Rohm and Haas of Philadelphia.

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color

Clariant Acquires Liquid-Color Producer

Swiss-based Clariant has acquired the combined companies of Rite Systems, Inc. and Ricon Colors, Inc.

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Additives

Composites Embrace Mass Production

The focus this year at the international JEC Composites Show in Paris was not so much on brand-new processes as on adapting existing processes and materials for mass production, especially of large parts with critical structural demands. Attracting the most attention was wind energy, where composite material usage is growing more than 17%/yr, according to Gurit (formerly SP Systems), a Swiss-based global prepreg supplier with U.S. operations.

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Enhancing Biopolymers: Additives Are Needed for Toughness, Heat Resistance & Processability

Plastics are going “green,” but they will need some help to get there. Biodegradable polymers derived from renewable resources are attracting lots of interest and publicity, but that enthusiasm is counterbalanced by persistent questions of availability, cost, performance, and processability. All these issues are inter-related: Increasing demand will lead to more capacity, which will presumably lead to lower prices. But the foundation is market demand, which ultimately depends on whether biopolymers will have the performance properties and processability to compete with existing non-renewable plastics.

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