METHOD OF IMPROVING ENVIRONMENTAL STRETCH CRACK RESISTANCE OF RPET WITHOUT SOLID STATING

PROBLEM TO BE SOLVED: To obtain an article which has environmental stretch crack resistance, color and organoleptic properties comparable to that of a virgin PET, from reclaimed polyethylene terephthalate (RPET) without solid-phase polymerization. SOLUTION: A blend of RPET without solid-phase polyme...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	FARHA SAID, THARMAPURAM SRIRAM R
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING GRANULES OR PREFORMS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain an article which has environmental stretch crack resistance, color and organoleptic properties comparable to that of a virgin PET, from reclaimed polyethylene terephthalate (RPET) without solid-phase polymerization. SOLUTION: A blend of RPET without solid-phase polymerization and an amount of polyethylene naphthalate (PEN) and/or naphthalene dicarboxylate (NDC) less than about 10 wt.% is used as at least one layer of the article, such as a container or a preform for blow molding the container, having an inner layer of a thermoplastic material. A small amount of PEN and/or NDC is added. COPYRIGHT: (C)2005,JPO&NCIPI