EP 4288260 A1 20231213 - METHOD FOR PRODUCING AN RPET PLASTIC MATERIAL FOR USE IN A THIN WALL INJECTION MOLDING PROCESS AND HOLLOW BODY PRODUCED IN THE THIN WALL INJECTION MOLDING PROCESS
Title (en)
METHOD FOR PRODUCING AN RPET PLASTIC MATERIAL FOR USE IN A THIN WALL INJECTION MOLDING PROCESS AND HOLLOW BODY PRODUCED IN THE THIN WALL INJECTION MOLDING PROCESS
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES RPET-KUNSTSTOFFMATERIALS ZUR VERWENDUNG IN EINEM DÜNNWAND-SPRITZGUSSVERFAHREN UND IM DÜNNWAND-SPRITZGUSSVERFAHREN HERGESTELLTER HOHLKÖRPER
Title (fr)
PROCÉDÉ DE PRODUCTION D'UN MATÉRIAU PLASTIQUE À BASE DE PET RECYCLÉ DESTINÉ À ÊTRE UTILISÉ DANS UN PROCÉDÉ DE MOULAGE PAR INJECTION À PAROI MINCE ET CORPS CREUX PRODUIT DANS LE PROCÉDÉ DE MOULAGE PAR INJECTION À PAROI MINCE
Publication
Application
Priority
- CH 1172021 A 20210208
- CH 0707362021 A 20211217
- EP 2022052961 W 20220208
Abstract (en)
[origin: WO2022167679A1] The invention relates to a method, in which a starting material for injection molding having a viscosity of between 0.50 and 0.7 dl/g is produced with the aid of Chain Breaker from a recycled post-consumer PET having a viscosity of between 0.72 and 0.86 dl/g to ASTM D4603 and a copolymer fraction of at most approximately 3%. In the method, the comminuted and dried PET material is melted and decontaminated to such a degree that it is suitable for applications in the food sector and the consumer goods sector. A Chain Breaker is added to the rPET material in the melt of the recycling extruder and/or preferably in the melt of the injection unit in order to reduce viscosity and to enrich the PET with copolymers.
IPC 8 full level
B29B 17/00 (2006.01); B29B 17/02 (2006.01); B29B 17/04 (2006.01); B29C 49/00 (2006.01); B29C 49/04 (2006.01); B29K 67/00 (2006.01); B29L 31/00 (2006.01)
CPC (source: EP US)
B29B 9/10 (2013.01 - US); B29B 17/0042 (2013.01 - EP); B29B 17/02 (2013.01 - US); B29C 45/0001 (2013.01 - US); B29C 48/022 (2019.02 - EP); B29D 22/003 (2013.01 - US); B29B 17/02 (2013.01 - EP); B29B 17/04 (2013.01 - EP); B29B 2017/0015 (2013.01 - EP US); B29B 2017/0255 (2013.01 - EP); B29B 2017/0268 (2013.01 - EP); B29B 2017/0286 (2013.01 - US); B29B 2017/042 (2013.01 - EP); B29C 48/09 (2019.02 - EP); B29C 48/287 (2019.02 - EP); B29C 48/69 (2019.02 - EP); B29C 48/76 (2019.02 - EP); B29C 49/0005 (2013.01 - EP); B29C 49/04 (2013.01 - EP); B29C 2045/0091 (2013.01 - US); B29K 2067/003 (2013.01 - EP US); B29K 2105/0094 (2013.01 - US); B29K 2105/26 (2013.01 - EP US); B29L 2031/7158 (2013.01 - EP); Y02W 30/62 (2015.05 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022167679 A1 20220811; EP 4288260 A1 20231213; MX 2023008392 A 20230803; US 2024100742 A1 20240328
DOCDB simple family (application)
EP 2022052961 W 20220208; EP 22708433 A 20220208; MX 2023008392 A 20220208; US 202218264748 A 20220208