What is "polybutene"

n. (context chemistry English) Any of a range of polymers of isobutene, used as adhesives and in rubber products

n. a polymer of butylene; used in lubricants and synthetic rubber [syn: polybutylene]

Polybutene and polyisobutylene are liquid oligomers widely used as plasticizers for high-molecular weight polymers, such as polyethylene, and as carriers and lubricants. They are not to be confused with the high molecular weight polymer polybutene-1.