The properties of polypropylene(PP) by equal channel angular extrusion(ECAE) processing were investigated.

研究了模压成型聚丙烯（ PP）经等通道转角挤压（ ECAE）加工后的性能。

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They also produce "hybrid" resins of polypropylene that are stronger and more durable, for use in cars or children's toys.

他们还生产聚丙烯“混合”树脂。这种产品更坚固耐用，适用于汽车或儿童玩具。

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Creating plastics that are biodegradable is important, Scheer says, because just 3.5 per cent of polypropylene plastic in the United States gets recycled.

舍尔说，生产生物可降解塑料很重要，因为在美国，只有3.5%聚丙烯塑料得到回收利用。

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Dow Chemical Co. started selling a new plastic last year, the first novel version of polypropylene in 30 years.

FORBES: Upstart Symyx is shaking up the stodgy chemicals industry.

It consists of a mesh of polypropylene (the stuff used to make Astroturf) sandwiched between layers of nonwoven polyester.

FORBES: Magazine Article

Sapir stopped work on the plant, prompting MOR to reassign the processing of polypropylene to another MOR unit working under an Inteco agreement.

FORBES: The Boomerang Effect