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1. WO2016081568 - SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

Publication Number WO/2016/081568
Publication Date 26.05.2016
International Application No. PCT/US2015/061288
International Filing Date 18.11.2015
IPC
B29B 9/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9Making granules
02by dividing preformed material
06in the form of filamentary material, e.g. combined with extrusion
B29B 17/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
17Recovery of plastics or other constituents of waste material containing plastics
04Disintegrating plastics
B29C 47/40 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
08Component parts, details or accessories; Auxiliary operations
36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
38using screws
40using at least two intermeshing screws
B29C 47/92 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
08Component parts, details or accessories; Auxiliary operations
92Measuring, controlling or regulating
CPC
B29B 17/0042
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
17Recovery of plastics or other constituents of waste material containing plastics;
0026by agglomeration or compacting
0042for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
B29B 2009/165
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9Making granules
16Auxiliary treatment of granules
165Crystallizing granules
B29B 7/42
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
7Mixing; Kneading
30continuous, with mechanical mixing or kneading devices
34with movable mixing or kneading devices
38rotary
40with single shaft
42with screw or helix
B29B 7/485
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
7Mixing; Kneading
30continuous, with mechanical mixing or kneading devices
34with movable mixing or kneading devices
38rotary
46with more than one shaft
48with intermeshing devices, e.g. screws
485with three or more shafts provided with screws
B29B 7/488
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
7Mixing; Kneading
30continuous, with mechanical mixing or kneading devices
34with movable mixing or kneading devices
38rotary
46with more than one shaft
48with intermeshing devices, e.g. screws
488Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
B29B 7/726
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
7Mixing; Kneading
30continuous, with mechanical mixing or kneading devices
58Component parts, details or accessories; Auxiliary operations
72Measuring, controlling or regulating
726Measuring properties of mixture, e.g. temperature or density
Applicants
  • MOHAWK INDUSTRIES, INC. [US]/[US]
Inventors
  • CLARK, Thomas R.
Agents
  • BRIENT, Scott E.
Priority Data
14/546,84718.11.2014US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT
(FR) SYSTÈMES ET PROCÉDÉS DE FABRICATION DE FILAMENT CONTINU GONFLANT
Abstract
(EN) A method of recycling PET into PET nurdles, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into PET nurdles. In various embodiments, the polymer melt is formed into PET nurdles using any suitable technique such as, for example, any suitable strand pelletizing or melt pelletizing techniques.
(FR) L'invention concerne un procédé de recyclage de PET en granulés de PET, qui comprend les étapes consistant à : (A) broyer des bouteilles en PET recyclées en un groupe de flocons ; (B) laver les flocons ; (C) identifier et éliminer les impuretés, y compris les flocons impurs, dans le groupe de flocons ; (D) faire passer le groupe de flocons dans une extrudeuse MRS (système multirotatif) tout en maintenant la pression dans la partie MRS de l'extrudeuse MRS en dessous d'environ 18 millibars ; (E) faire passer le polymère en fusion obtenu à travers au moins un filtre ayant une classification en micron inférieure à environ 50 microns ; et (F) former le polymère recyclé en granulés de PET. Dans divers modes de réalisation, le polymère en fusion est formé en granulés de PET au moyen d'une technique appropriée quelconque comme, par exemple, des techniques appropriées quelconques de granulation à jonc ou de granulation en fusion.
Latest bibliographic data on file with the International Bureau