Method for treating extremely small particles of...

Details Method for treating extremely small particles of... Method for treating extremely small particles of...

2005-08-09

2009-08-25

Boykin, Terressa M (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

C241S019000, C241S023000, C241S024160, C241S028000, C264S176100, C264S219000, C528S271000, C528S272000, C528S480000, C528S50200C

Reexamination Certificate

active

07579431

ABSTRACT:
A method for treating extremely small particles of recycled polyethylene terephthalate comprises providing a quantity of RPET particles having an average mean particle size ranging from about 0.0005 inch to about 0.05 inch in diameter, heating the RPET particles to a temperature sufficient to cause at least a portion of the RPET particles to adhere to one another, and forming the adhered RPET particles into pellets, said pellets having substantially the same average surface-to-volume ratio as the bulk, un-adhered RPET particles.

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patent: 2004/0049062 (2004-03-01), Bijl et al.
patent: 10349269 (2000-05-01), None

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