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Tyco Adhesives Launches Custom Coating Division

Tyco Adhesives Launches Custom Coating Division

Turnkey coating services from Tyco Adhesives allow OEMs to outsource a challenging process.

Tyco Adhesives (Norwood, MA; www.tycoadhesives.com) has announced the inauguration of a custom coating division that will provide OEMs, converters, and suppliers with turnkey coating services. OEMs currently coating products in-house can now outsource what is traditionally a challenging process, according to the company, while leveraging the expertise of a 50-year-old tape and adhesives supplier.

Tyco Adhesives has experience in a broad range of applications from relatively simple to more complex, multiple-pass processes. Rubber, acrylic, and silicone-based adhesive systems are specialties.

The firm implements a complete product design program in order to optimize the conversion process and performance of the end product. Factors taken into account include customer specifications, endurance expectations, environmental conditions, processing parameters, and intended use of the product. A comprehensive test protocol and trial program allows a seamless transition to production, according to the company.—K.M.

Low-Temperature Process Developed for Titanium Nitride Production

Chemists at the University of Edinburgh in Scotland (www.ed.ac.uk) have
developed a method to produce titanium nitride at lower temperatures than are
currently the norm. The energy-efficient process may lead to a reduction in
the production costs of medical implants, according to the researchers.

Titanium nitride is used to coat hip replacements and other implants as well
as a host of nonmedical products. Production of the material typically requires
temperatures between 800° and 900°C and costly high-vacuum equipment,
because the rate of reaction between titanium and nitrogen is very slow at lower
temperatures. An electrochemical process that uses liquid ammonia as a solvent
has enabled Edinburgh's team of researchers to cause a reaction at temperatures
ranging from –78° to 25°C. While electrochemical methods of production
have been attempted before, Colin Pulham of the university's department of chemistry
says the Edinburgh model is successful for two reasons: potassium amide has
been added to the ammonia, and researchers have devised an innovative processing
method.

"Most of the routes for [titanium nitride] production require high temperatures
and expensive equipment, so there are significant energy and capital costs,"
says Pulham. "There are also drawbacks if you want to make precision tools,
because the high temperatures cause them to deform. Our process offers an alternative
low-temperature route for nitriding titanium-coated components, with no need
for subsequent reheating," he adds.

The technology is available for licensing, and the university is currently
seeking collaborative agreements with industrial partners. If you are interested
in learning more, e-mail Ronald Kerr at the university's communications and
public affairs office at [email protected].

Norbert Sparrow

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