US 9,808,963 B2
Method for recycling plastic materials
Klaus Feichtinger, Linz (AT); Manfred Hackl, Linz-Urfahr (AT); and Gerhard Wendelin, Linz (AT)
Assigned to EREMA ENGINEERING RECYCLING MASCHINEN UND ANLAGEN GESELLSCHAFT M.B.H., Anselfden (AT)
Appl. No. 13/264,818
Filed by Klaus Feichtinger, Linz (AT); Manfred Hackl, Linz-Urfahr (AT); and Gerhard Wendelin, Linz (AT)
PCT Filed Apr. 14, 2010, PCT No. PCT/AT2010/000105
§ 371(c)(1), (2), (4) Date Dec. 21, 2011,
PCT Pub. No. WO2010/118447, PCT Pub. Date Oct. 21, 2010.
Claims priority of application No. A 599/2009 (AT), filed on Apr. 17, 2009.
Prior Publication US 2012/0091609 A1, Apr. 19, 2012
Int. Cl. B29B 17/00 (2006.01); B02C 23/00 (2006.01); B29B 17/04 (2006.01); B29C 47/00 (2006.01); B29C 47/08 (2006.01); B29C 47/60 (2006.01); B29C 47/64 (2006.01); B29B 13/02 (2006.01); B29B 13/10 (2006.01); C08J 11/06 (2006.01); B29B 17/02 (2006.01); B29C 47/10 (2006.01); B29C 47/68 (2006.01); B29C 47/72 (2006.01); B29C 47/76 (2006.01); B29K 105/26 (2006.01)
CPC B29B 17/0036 (2013.01) [B29B 13/022 (2013.01); B29B 13/10 (2013.01); B29B 17/0026 (2013.01); B29B 17/02 (2013.01); B29B 17/04 (2013.01); B29B 17/0412 (2013.01); B29C 47/0004 (2013.01); B29C 47/0011 (2013.01); B29C 47/0054 (2013.01); B29C 47/0871 (2013.01); B29C 47/0884 (2013.01); B29C 47/605 (2013.01); B29C 47/6018 (2013.01); B29C 47/6037 (2013.01); B29C 47/64 (2013.01); C08J 11/06 (2013.01); B29B 2017/0224 (2013.01); B29B 2017/048 (2013.01); B29C 47/0021 (2013.01); B29C 47/0026 (2013.01); B29C 47/10 (2013.01); B29C 47/68 (2013.01); B29C 47/725 (2013.01); B29C 47/76 (2013.01); B29C 2791/006 (2013.01); B29K 2105/26 (2013.01); Y02W 30/523 (2015.05); Y02W 30/62 (2015.05); Y02W 30/622 (2015.05); Y02W 30/625 (2015.05)] 9 Claims
OG exemplary drawing
 
1. A system for recycling a material, comprising:
(a) at least one reprocessing unit, configured to form a reprocessed material by heating and mixing the material while retaining a particulate and flowable form of the material;
(b) at least one melting unit configured to form a melt by melting the reprocessed material at least to a point where filtration of the melt is possible;
(c) at least one filtration unit configured to filter the melt to form a filtered melt;
(d) at least one homogenization unit configured to homogenize the filtered melt, wherein the homogenization unit comprises first and second homogenizers, wherein the first homogenizer comprises a Maddock shearing element, wherein the second homogenizer comprises a cylindrical rotatable body having an outer surface with a plurality of projections, wherein the first homogenizer receives the filtered melt and generates a first homogenized melt, and wherein the second homogenizer receives the first homogenized melt and generates a second homogenized melt;
(e) at least one degassing unit configured to degas the second homogenized melt to form a degassed melt; and
(f) at least one member of the group consisting of:
at least one discharge unit configured to discharge the degassed melt from the system to form a discharged melt; and
at least one subsequent processing unit configured to process the degassed melt to form a processed melt,
wherein the reprocessing, melting, filtration, homogenization, degassing, and discharge or subsequent processing units are serially connected in the above order,
wherein the temperatures of each of the first and second homogenized melts are equal to or greater than the highest temperature of the temperatures of the reprocessed material, the melt, the filtered melt, the degassed melt, and the discharged or processed melt.