Category Archives: Uncategorized

Does Low Constant Pressure Injection Molding Work?

By Jan H. Schut It could be the most unusual new development in injection molding in the past 20 years, developed by household products giant Procter & Gamble Co., Cincinnati, OH (us.pg.com). According to P&G patents, the technology consists of … Continue reading

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In case you missed it at ANTEC 2017

By Jon Evans Medical polymers Several advanced medical polymers were showcased in the technical sessions at ANTEC 2017. Suneel Bandi from EVONIK gave an overview of the company’s range of high-performance polyamides. These include flexible polyamides, bio-based polyamides and transparent … Continue reading

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Looking Forward to ANTEC 2017?

New material advances are leading to the development of novel polymers with a range of impressive properties. Continue reading

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‘SSSP’ Technology Is Finally Commercial

By Jan H. Schut Solid State Shear Pulverization, which chills a co-rotating twin-screw extruder below the softening temperature of plastic rather than allowing it to melt, is finally commercial after more than 20 years of R&D. Zzyzx Polymers LLC, Allentown, … Continue reading

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‘Exjection’ Molding Comes into Its Own

By Jan H. Schut At least two commercial technologies combine extrusion with injection molding to fill molds with much lower pressure than conventional injection molding. One was recently introduced by Extrude to Fill LLC, Loveland, CO (www.extrudetofill.com), which melts plastic … Continue reading

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Unusual ‘Extrusion’ Molding Is Commercial

By Jan H. Schut Low-shear, low pressure “extrusion” molding machines developed by Extrude to Fill LLC, Loveland, CO (www.extrudetofill.com), a 2014 start-up, have been commercially molding tiny acoustic parts since 2015. Extrude to Fill’s process melts plastic without motion using … Continue reading

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New Shapes for Conformal Cooling

Conformal cooling channels in injection molds have been built by additive manufacturing, or 3-D printing, developmentally since the late 1990s using successive thin layers of metal. Continue reading

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