Polypropylene (PP) was discovered and developed by two Italian chemists, Giulio Natta and Karl Ziegler, in the mid-1950s. Both chemists independently developed catalysts that enabled the polymerization of propylene into a crystalline polymer structure, which they termed polypropylene.

Karl Ziegler, a German chemist, developed a catalyst system known as the Ziegler-Natta catalyst. This catalyst revolutionized polymerization processes by enabling the production of polypropylene and other polymers with specific stereochemical structures and properties.

The circle mold is a kind of product of injection molds, perfect for making beautiful cake or candies with standard dimensions. The plastic injection round cake mold allows you to cut, emboss and press out sugar paste decorations. It’s non-adhesion surface, easy to clean, easy to keep. Due to the outer end-to-end welded seam, your creation is perfectly shaped and flawless, as the interior surface is smooth. EX Mold Technology is a leading plastic injection mould manufacture in China, produce high quality circle molds for cake making, adopt stainless steel as material, after double-sided hot pressing, the mold is solid and durable, and can be reused for more than 10 times. We adopt CAD/CAM/CAE to design all the mould combine our advanced technology. Buy plastic injection circle cake mold at cheap price from EX Mold Technology to make your product more unique and compelling!

Above are examples such as icing nozzles for decorating a cake, cable clips for electrical applications and components for barriers including an overmoulded cap with TPE.

For their groundbreaking work on polypropylene, Karl Ziegler and Giulio Natta were awarded the Nobel Prize in Chemistry in 1963. Their discoveries paved the way for the commercialisation of polypropylene, which has become one of the most widely used thermoplastics globally, finding applications in packaging, textiles, automotive components, and various other industries.

Giulio Natta, an Italian chemist, used Ziegler’s catalyst to further develop and refine the polymerization process. Natta’s work with Ziegler’s catalyst led to the discovery of isotactic polypropylene, a highly crystalline form of the polymer that exhibits excellent mechanical and thermal properties.

If you have an injection moulding project and are considering using Polypropylene, please get in touch with our technical team on 01280 706335 for a free consultation!

Welcome to BPY Plastics Ltd, your one-stop shop for all your injection moulding needs! As a leading supplier in the industry, we offer a wide range of products and services to meet our customers' needs. Our commitment to quality and innovation has earned us a reputation for excellence.