PET bottle recycling

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...

Reexamination Certificate

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Details

C521S040000, C521S040500, C521S045000, C521S045500, C528S480000, C528S499000, C528S50200C, C241S024100, C241S024150, C241S029000, C241S038000, C241S043000

Reexamination Certificate

active

07973092

ABSTRACT:
A method for reprocessing used PET bottles having the steps of shredding the bottles to form plastic flakes, sorting the plastic flakes according to at least one criterion into at least two partial quantities, and performing an individual processing treatment including a decontamination treatment. The device permits performing the method whereby it is possible to separate the plastic flakes produced from the threaded part of a PET bottle, these flakes being more difficult to purify, from the lighter plastic flakes from the wall of the bottle, which have a thin wall and are easier to purify, and treating them further in separate reprocessing steps.

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http://www.wipo.int/pct/en/texts/pdf/ispe.pdf#page=76 p. 78, 10.14.

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