Posts Tagged ‘food packaging’

Polypropylene

Definition Polypropylene is a thermoplastic material resulting from the polymerization of the propylene by catalysts. Polypropylene may also be called Polypropene. Polypropylene is usually represented by PP. Comments Polypropylene belongs to the olefins family as a polyolefins together with the Polyethylene. The Polypropylene is a polymer produced from the propylene monomer by catalytic polymerization. Because of […]

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Polyurethane

Definition: “Polyurethane“, like all plastics, is a polymer made by reacting diisocyanates (MDI and/or TDI) with a range of Polyols. Depending on the desired end product, chemical formulations may contain other ingredients such as catalysts, blowing agents and possibly flame retardants. Comments: Polyurethanes were invented back in the 1930s by Professor Dr. Otto […]

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