How Nylon is made
WHAT IS NYLON 6,6? Image
WHAT IS NYLON 6,6? Number

WHAT IS NYLON 6,6?

Nylon 6,6 (also known as polyamide 66, or PA66) is the resulting combination of two starting materials that, under pressure and heat, join to form a chain called a polymer that INVISTA's customers use to manufacture goods.

INVISTA'S ROLE IN NYLON 6,6 Image
INVISTA'S ROLE IN NYLON 6,6 Number

INVISTA'S ROLE IN NYLON 6,6

At INVISTA, we make nylon 6,6, from these two starting materials: adipic acid (AA) and hexamethylene diamine (HMD), which INVISTA specializes in making.

MAKING ADN - OUR PROCESS Image
MAKING ADN - OUR PROCESS Number

MAKING ADN - OUR PROCESS

In order to make HMD, we first need to make a critical ingredient called adiponitrile (ADN). Our proprietary ADN process creates better product yields utilizing less energy than today's competing technologies.

MAKING HMD Image
MAKING HMD Number

MAKING HMD

Next, we have a process for creating HMD by utilizing catalysts to hydrogenate ADN into HMD - the first six-carbon molecule in nylon 6,6.

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CREATING SALT Number

CREATING SALT

We then take our HMD and mix it with adipic acid, or the next six-carbon molecule in nylon 6,6. This creates a salt solution in water.

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APPLYING PRESSURE

The salt is then subjected to high heat and pressure, and we vent the water, which allows the molten polyamide chains to lengthen and strengthen.

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MAKING PELLETS

Finally, we extrude these molten polyamides into a cool water trough, where they solidify and are then sent to a cutter to be processed into nylon 6,6 pellets.

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HOW NYLON 6,6 IS UTILIZED

These nylon 6,6 pellets are then re-melted and spun into fiber or molded into durable plastic parts that can handle high temperatures and chemical exposure.

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WHO WE SUPPLY NYLON 6,6 Number

WHO WE SUPPLY NYLON 6,6

In addition to the HMD and adipic acid we sell our global customers, we also sell our nylon 6,6 pellets directly to downstream manufacturers.

WHAT IT ALL MEANS FOR YOU Image
WHAT IT ALL MEANS FOR YOU Number

WHAT IT ALL MEANS FOR YOU

In molded thermoplastic applications, nylon 6,6 makes its way into many of the products you rely on every day - like car parts, electrical connectors and appliances.