Featured Articles

Rewriting valve gate rules, doubling production

By PlasticsToday Staff
Published: August 25th, 2010

Mold Hotrunner Solutions (MHS) introduces Rheo-Pro iVG, an innovation the company claims is the world’s most compact back-to-back valve gate hot runner system. The new iVG is the first and only internal valve gate on the market, claims MHS. Its patented design completely “rewrites the rules” of valve gating technology and opens up endless new possibilities for high-cavity stack molds, swivel molds, and multi-material injection molds.

Slim blowmolded pack innovates way through postal regulations

By Matt Defosse
Published: August 25th, 2010

A plastic package for sending mail-order vitamins and similar products through standard letter post, rather than the more expensive parcel post, has been introduced. The blowmolded HDPE package, with its width-to-depth ratio of more than 4:1, created a significant technical challenge for the processor, RPC Containers.

LyondellBasell expands rotomolding offerings

By MPW Staff
Published: August 25th, 2010

LyondellBasell (Rotterdam, Netherlands) has launched two new pre-colored rotational molding resins that provide good cold-temperature impact performance and environmental stress-cracking resistance. The Lupolen 3621 M RM Black and Lupolen 4021 K RM Black high-density polyethylene (HDPE) compounds are suited for industrial fuel tanks, technical parts, and underground waste and sewage systems. The company noted that next to natural, black is the most commonly used color in rotomolding applications.

Processors join forces to tilt at offshore wind energy project

By MPW Staff
Published: August 24th, 2010

Two plastics processors with plenty of "green cred" filed a joint petition to stop construction of an offshore wind energy facility. The clash in Rhode Island has made allies of the two processors, Toray Plastics and PolyTop, as well as a local environmental group, the Rhode Island chapter of the Conservation Law Foundation, which also has filed an appeal to halt building of the new site.

Chinese coal-to-olefins plant uses Dow Unipol for PP production

By PlasticsToday Staff
Published: August 24th, 2010

The first plant in China to manufacture polypropylene (PP) from coal-generated olefins will utilize Dow's Unipol gas-phase process. The China Shenhua Coal to Liquid and Chemical Baotou Coal Chemical Co.'s Shenhua Baotou Coal Chemicals business started up the 300,000-tons/yr PP facility in early August. Located in the Inner Mongolia Autonomous Region, the plant uses gasification technology to convert coal into a synthesis gas or syngas. That syngas is used to produce methanol, which is transformed into PP building blocks, olefins.

JM Eagle forms strategic pipe partnership

By MPW Staff
Published: August 24th, 2010

JM Eagle, the world’s leading manufacturers of plastic pipe used in infrastructure projects globally, announced that it has entered into an agreement with Contech Construction Products that allows end users across the country access to Eagle Corr PE™. This partnership ties directly into JM Eagle’s strategic mix of customers and enhances its nationwide footprint for this line of products.

TPE North American resin pricing, August 16-20: PE, PP largely stable, film-grade PE remains tight

By PlasticsToday Staff
Published: August 24th, 2010

Overview: The spot resin market was noticeably slower this past week as transacted volumes dropped after several weeks of heightened activity, according to spot-trading platform, The Plastics Exchange (TPE). Most grades of polyethylene (PE) and polypropylene (PP) again saw stable prices, although film-grade PE continues to climb amid tight supplies. Overall resin demand remained strong, but buyers seemed unwilling to chase higher-priced offers.

Supplier confidence still positive, auto suppliers still skeptical

By PlasticsToday Staff
Published: August 24th, 2010

According to the quarterly SupplierBusiness Confidence Index released on Aug. 23, suppliers to the automotive industry continue to be concerned about the long-term strength of the recovery and its stability, in spite of industry growth. Overall though, positive trends remain in place among suppliers, with all four elements of the index—New Orders, Production Volumes, Inventory levels and Employment—scoring over 50, suggesting they are in an upward trend.

Anchors aweigh: Sales gather steam for custom molder

By MPW Staff
Published: August 23rd, 2010

The plastics processing industry in the U.S. remains under pressure by most accounts, but there's been a definite uptick for many, among them Anchor Plastics. The small custom molder has rebounded hard from last year's drop in sales and is looking to hire.

Tips of the trade: Purging troubleshooting for injection molding

By John Pizzo
Published: August 23rd, 2010

New to purging compounds? Or an old hand but know you could use a refresher? Here some best practices or troubleshooting tips beyond the set of basic purging procedures.

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