Activation of polyethylene terephthalate materials for improved bonding to adhesives

A method for the activation of polyethylene terephthalate materials such as tire yarns is provided whereby the adhesion of the material to an adhesive is enhanced. The material is activated by means of an electron beam to promote free radical formation, which free radicals are permitted to form carb...

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Bibliographische Detailangaben
Hauptverfasser:	GILLBERG-LAFORCE, GUNILLA E
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A method for the activation of polyethylene terephthalate materials such as tire yarns is provided whereby the adhesion of the material to an adhesive is enhanced. The material is activated by means of an electron beam to promote free radical formation, which free radicals are permitted to form carboxyl and hydroxyl functionalities under ambient conditions. Such functionalities improve the adhesion with a suitable adhesive such as an epoxy or isocyanate adhesive which is reactive to carboxyl or hydroxyl functionalities and which may be applied to the material before or after activation thereof.