noun
- Plural of polypropylene; thermoplastic polymers made from propylene monomers, widely used in packaging, automotive parts, and consumer products.
Usage: technical; material science
Examples
- The factory produces several grades of polypropylenes for different industrial applications.
- Polypropylenes are commonly used in food containers because they are lightweight and durable.
- Different polypropylenes have varying melting points and flexibility properties.
- The automotive industry relies on polypropylenes for interior trim and bumper components.
- Polypropylenes can be recycled and are marked with the number 5 on plastic products.