NPE ’12: Invista unveils new high-heat resistant resin

05 April 2012 03:14  [Source: ICIS news]

ORLANDO, Florida (ICIS)--Invista Engineering Polymers has unveiled a new resin for use in high-temperature applications, especially automotive, a company executive said on Wednesday.

“As a result of the automotive sector’s efforts to improve fuel efficiency through light weighting, we are seeing increasing use of applications such as turbo-charged engines, which require greater temperature resistance,” said Kurt Burmeister, Invista executive vice president for engineering polymers, at the release of the company’s new TORZEN Marathon PA66 resin.

Burmeister was speaking during a presentation at the National Plastics Exposition (NPE) in Orlando.

Conventional PA66 -- or nylon 6,6 (polyamide 6,6) -- resins cannot be used in applications that need continuous heat up to about 180°C, said Burmeister.

“Given the limitations of conventional PA66, other polymers, such as higher temperature polyamides (PPA) and polyphenylene sulfides (PPS), are generally used,” he said.

However, the company’s new TORZEN Marathon resin “expands the application space for PA66 to a continuous use of heat of 210°C, while maintaining a peak temperature of 240°C to 250°C”, Burmeister added.

“This new technology enables [customers] to use tools that are already cut for PA66 and offers a 40% to 50% improvement in flow versus conventional PA66 resins,” he said.

While the product’s “PA66 backbone is still the same… minimising surface oxidation is the key to enhancing the life of the polymer”, said Vikram Gopal, Invista’s global director, engineering polymers technology and product marketing, on the sidelines of NPE.

According to the company, TORZEN Marathon resin retains around 90% of its tensile strength after 1,000 hours at 210°C, a 70-80% improvement over conventional PA6 and PA66 resins, which retain around 50%.

In addition to automotive applications, the new resin is also targeted at the electrical and electronics segments.  

The four-day NPE is sponsored by the Society of the Plastics Industry (SPI) and runs through Thursday.

Read John Baker’s Chemicals and Innovation blog

By: Ivan Lerner
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