Meanings and history of the name Greer : | Edit. Greer is of Latin origin and it is used mainly in English. The name Greer means 'watchful'. Also Watcher, Watchful, Alert, Guardian.The girl name Greer is pronounced 'GRIHR' 1 syll. gree(r), gr-e-er.reer is of Latin origin and it is used mainly in English. The name Greer means 'watchful'. Also Watcher, Watchful, Alert, Guardian. The girl name Greer is pronounced 'GRIHR' 1 syll. gree(r), gr-e-er.
Noun. 1. polypropylene-a polymer of propylene used as a thermoplastic molding material. polypropene. plastic-generic name for certain synthetic or semisynthetic materials that can be molded or extruded into objects or films or filaments or used for making e.g. coatings and adhesives.oun. 1. polypropylene-a polymer of propylene used as a thermoplastic molding material. polypropene. plastic-generic name for certain synthetic or semisynthetic materials that can be molded or extruded into objects or films or filaments or used for making e.g. coatings and adhesives.
An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids. In 2013, the global market for polypropylene was about 55 million metric tons.hen the methyl groups in a polypropylene chain exhibit no preferred orientation, the polymers are called atactic. Atactic polypropylene is an amorphous rubbery material. It can be produced commercially either with a special type of supported Ziegler-Natta catalyst or with some metallocene catalysts.