Canadian Plastics

Machine compounds and molds long-fibre filled parts

A new machine combines in-line compounding with injection molding to make long glass-fibre filled parts in a one-step process. The technology is a result of a joint development project between Husky I...

January 1, 2001   Canadian Plastics



A new machine combines in-line compounding with injection molding to make long glass-fibre filled parts in a one-step process. The technology is a result of a joint development project between Husky Injection Molding Systems (Bolton, ON) and Werner & Pfleiderer. The machine, which operates like a standard injection system, results in longer fibre lengths in parts than pre-compounded resins can achieve, increasing mechanical performance properties. It also reduces costs by integrating compounding and injection processes. Husky recently introduced a 300-tonne injection machine equipped with a Werner & Pfleiderer ZSK40 twin-screw extruder. The machine was used to produce a 30 percent glass-filled polypropylene plate with a fibre length of up to 20 mm.

Catalyst technology set to enhance gas-phase PE throughput

Nova Chemicals Corporation has successfully transferred its Advanced Sclairtech Ziegler-Natta (Z-N) catalyst to its Unipol gas-phase polyethylene plant in Joffre, AB. Trials have shown the Novacat T catalyst formulation is a direct and superior replacement for conventional Z-N catalysts in commercial-scale production plants, according to president, Nova Chemicals Olefins/Polyolefins business Dan Boivin.

Novacat T catalyst technology will be available to selected licensees. The catalyst is available to produce Z-N resins with narrow or broader molecular weight distributions. Initial results indicate hexene film resins produced with the catalyst are fully competitive with benchmark hexene film resins.

Advertisement


Print this page

Related Stories

Leave a Reply

Your email address will not be published. Required fields are marked *

*