Compounding : Plastics Technology

PT ZONE: Compounding

PolyOne Sells PVC Resin Business, Forms New Sheet Division
Spartech is now a newly formed business segment called Designed Structures and Solutions (DDS). More (+)

Improving Twin-Screw Compounding Of Reinforced Polyolefins
Compounders face a number of processing challenges when incorporating a high loading of low-bulk-density mineral filler into polyolefins. Here are some possible solutions. More (+)

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MOST RECENT CONTENT: Compounding

Mitsui to Boost PP Compounding to Meet U.S. Automotive Demand
2/26/2013Plastics Technology

Japan’s Mitsui Chemicals, Inc. (U.S. office in Rye Brook, N.Y.) has augmented its expansion plans for production of PP automotive compounds and TPOs in the U.S. by an additional 30 million lb/yr through its affiliate, Advanced Composites, Inc., Sidney, Ohio.

Lots of News in Engineered Compounding
1/29/2013Plastics Technology

Three companies, two of them domestic masterbatch suppliers, and one a German compounder, recently made new moves in engineered compounds for the U.S. market.•Americhem expands: Color and additive concentrate producer Americhem Inc., Cuyahoga Falls, Ohio, has acquired Infinity Compounding, LLC of Swedesboro, N.J.

Coperion Bought by Owner of K-Tron
11/3/2012Plastics Technology

It has been a big month for plastics machinery acquisitions.

KraussMaffei Group Sold to Investors
11/3/2012Plastics Technology

In late September, Onex Corp., a Toronto-based private-equity firm, agreed to acquire the KraussMaffei Group of Germany for around $735 million from Madison Capital, which had owned KraussMaffei since 2006.

First Twin-Screw Lab Line Dedicated to Devol
10/1/2012Plastics Technology

What’s believed to be the one and only twin-screw laboratory line to perform direct devolatilization is open for trial runs.

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OVERVIEW:
Compounding

In compounding, various materials are mixed and melted—generally in an extruder of some type—then pelletized. This pelletized material is subsequently processed into a finished or semi-finished part by either molding or extrusion. Most compounding is done on twin-screw extruders of either co-rotating or counter-rotating design. Other types of equipment, such as ingle-screw extruders, kneaders and mixers, can also used to compound materials. From this zone you will be able to navigate to more specific information on single- and multiple-screw compounding.

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