Selective separation of used fragmented polymeric materials...

Details Selective separation of used fragmented polymeric materials... Selective separation of used fragmented polymeric materials...

2004-12-08

2010-10-05

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Process of treating scrap or waste product containing solid...

C521S040500, C521S041000, C521S046000, C521S047500, C521S048000, C528S480000, C528S50200C, C528S50200C, C241S019000, C241S022000, C209S132000, C209S142000, C209S162000, C209S172500, C209S724000

Reexamination Certificate

active

07807727

ABSTRACT:
The invention relates to a method for selectively separating mixed synthetic organic materials such as filled or non-filled polymers and/or copolymers that are wastes, particularly used, for recycling in order to upgrade them. These synthetic organic materials result from the destruction by crushing of automobiles and durable consumer goods that have reached the end of their serviceable lives. Said selective separation method acts by separating these materials with regard to a density threshold selected in a dense medium consisting of separating fluid liquid suspensions composed of powdery particles dispersed in an aqueous phase. These suspensions are stabilized by using a dynamic stabilizing means at a density threshold value selected for causing the selective separation of a determined fraction from the mixture of the used materials to be separated.

REFERENCES:
patent: 3857489 (1974-12-01), Valentyik et al.
patent: 4504643 (1985-03-01), Boutin et al.
patent: 5653867 (1997-08-01), Bassam et al.
patent: 5738222 (1998-04-01), Allies et al.
patent: 6335376 (2002-01-01), Arola et al.
patent: 6460788 (2002-10-01), de Feraudy
patent: 2003/0027877 (2003-02-01), Pomykala et al.
patent: 4334570 (1995-04-01), None
patent: 19964175 (2001-12-01), None
patent: 0918606 (1999-06-01), None
patent: WO 2004/009200 (2004-01-01), None
Dreiringer et al, “Wiederaufbereitungs-Anlage Fuer PVC-Folien”, KunststoffBerater, Kunststoff Verlag. Isemhagen, DE, vol. 38, No. 6, Jun. 1, 1993, p. 26-30.

Affiliated with

Also associated with

Rating

Selective separation of used fragmented polymeric materials... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selective separation of used fragmented polymeric materials..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective separation of used fragmented polymeric materials... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4207869