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Engineering Resins 1 Jul 2001

Polymers as Additives

A pinch of one resin can teach another one new tricks. Take a look at the promising results with four novel property enhancers for thermoplastics and thermosets.

Engineering Resins 1 Jun 2001

Plastics That Conduct Heat

Helping electronics, lighting, and car engines keep cool are some new roles for hermoplastics that are formulated to replace metal or ceramic.

Commodity Resins 1 Apr 2001

Metallocene PP & PE Weld Strongly to Each Other

Multilayer film applications such as packaging and diapers are just two areas that could benefit from spot welding (instead of gluing) polyethylene to polypropylene. Normally these two resins show poor adhesion to each other. But two years of research at the University of Minnesota in Minneapolis and at ExxonMobil Chemical in Houston show that metallocene-catalyzed polyolefins can weld to each other with bond strengths much greater than are possible with conventional Ziegler-Natta catalyzed polyolefins.

Injection Molding 1 Feb 2001

Rapid Prototyping: Pretty Soon, You Won't Be Able To Get Along Without It

Bigger, faster, more accurate machines and more durable materials threaten to make "RP" indispensable for product and tool development. Molders also find RP models aid accurate price quoting. Next up: ‘rapid manufacturing' of production parts.

Additives 1 Dec 2000

Materials

To succeed in Detroit, it’s not enough for polypropylene-based TPO elastomers to be low-cost, lightweight, easily processable, and recyclable. They also have to look good for the life of the vehicle.

Postprocessing 1 Oct 2000

What's New in Printing & Decorating

New systems to process mixed plastic waste and to upgrade it with fiberglass or wood flour were prominent at last June’s show in Chicago. Single-shaft rotary grinders made a strong showing as newer alternatives to conventional granulators and shredders.

Additives 1 Jul 2000

Get the Right Additives for mLLDPE Film

Since the advent of metallocene-catalyzed plastomer and LLDPE film resins, improving processability while retaining their inherently high physical and optical properties has been an industry target.

1 Jun 2000

RIM & Urethanes

Improved designs of high- and low-pressure metering systems will be displayed at NPE 2000. Look also for new CO2 blending systems and an upgraded pentane mixing system.

Additives 1 Jul 1999

Stretch Tio2

With prices going up and up, and supplies getting snugger, it's time to re-examine the available extender pigments that can make TiO2 go further.

1 Jun 1999

Nanocomposites--A Little Goes A Long Way

From auto parts to barrier packaging, the race is on to commercialize nano-clay thermoplastic composites. Just a pinch of these infinitesimally small particles can dramatically raise mechanical, thermal, barrier, and flame-retardant properties.

1 Feb 1999

Easy-Sealing Plastomers Get Stiffer & Tougher

If you're looking for a film resin with the outstanding heat-sealability of metallocene plastomers but with higher stiffness for easier converting, you may want to try the new Mxsten CV family of linear hexene copolymers resins from Eastman Chemical Co., Kingsport, Tenn.