Most bottle caps for single-use bottles are made from high-density polyethylene (HDPE). When an HDPE cap is tightened on a bottle, plastic from the cap’s “ceiling” squishes against the lip ...

The West Sacramento, Calif.-based company, a pioneer in the development of PET caps, is in talks with many different firms, ...

John Sugden, Dow application technology leader for rigid packaging, talked about bimodal HDPE for use in aseptic and hot-fill bottles. In hot fill, the plastic bottle expands after filling.

Colour-coded bottle ... white in 331 Waitrose shops. It was done with the help of dairy company Muller, which purchases a fifth of all milk produced on farms across the UK. The red cap is ...