polyolefins
SPE Automotive Awards Highlight Materials and Processing Advances
What’s new in plastics on cars?
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High-Melt-Strength PP Makes Softer, Lighter Foams
A new high-melt-strength (HMS) polypropylene is said to be especially suited to foam extrusion because it makes much softer foams than other HMS-PP grades.
Read More50 Ideas That Changed Plastics
Very few readers of this issue can remember, or even imagine, what it was like when an injection molding machine did not have a screw, but only a smooth-bore plunger.
Read MoreNew Irradiated Polyethylenes Boost Processing and Performance
For decades, makers of polyethylene wire and cable, shrink tubing, hot and cold water piping, sheet, and foam have used radiation crosslinking to enhance the thermal and mechanical properties of their products.
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Unusual TPOs Displace Other Plastics In Hard and Soft Auto Parts
The advance of TPOs into new interior and exterior automotive applications was the theme of the latest annual Automotive TPO Global Conference, sponsored by the Society of Plastics Engineers in Dearborn, Mich.
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New Processes Give Automotive Molders An Edge in Cost and Productivity
Car makers' all-out effort to cut costs is giving rise to new paint-free technologies, including an innovative 'simultaneous-shot" injection molding process that was presented at the SPE Automotive Division's latest annual Innovation Awards ceremony.
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Commodities Futures Trading Starts for Polyolefins
In an era of volatile resin prices, trading commodities futures for plastics may be an idea whose time has come.
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K 2004 Wrap-Up on Materials: Setting New Benchmarks for Processability and Performance
Higher flow, higher heat, higher barrier, higher clarity, higher stiffness, lower durometer, lower smoke, lower odor—materials exhibits at the recent K 2004 show in Dusseldorf were stretching the bounds of processing and performance properties in all directions.
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K 2004 News Preview: Materials
Quite a few new polyolefins are being featured at this year’s show, with a particular emphasis on specialty PP and PE materials.
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Belt Polishing of Clear PP Film Proves Itself in Production
An unusual cast-film process that drops a melt curtain of polypropylene between a flexible steel polishing belt and a chill roll has now proven successful in high-volume commercial production.
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