Expandable alpha-olefin copolymer granules - having improved shelf life

Olefin polymer granules, which are capable of being foamed by dielectric heating, comprise a) particles of a copolymer formed from 70-95 wt. % 2-6C alpha-olefin and 30-5 wt. % 3-8C alpha, beta-monoethylenically unsatd. carboxylic acid, and b) 2-25 wt.%, based on copolymer, of satd. perchlorofluoroca...

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Bibliographische Detailangaben
1. Verfasser:	RUBENS, LOUIS CHARLES, MIDLAND, MICH. (V.ST.A.)
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Olefin polymer granules, which are capable of being foamed by dielectric heating, comprise a) particles of a copolymer formed from 70-95 wt. % 2-6C alpha-olefin and 30-5 wt. % 3-8C alpha, beta-monoethylenically unsatd. carboxylic acid, and b) 2-25 wt.%, based on copolymer, of satd. perchlorofluorocarbon. Pref. the compsn., in which the copolymer is prepd. from ethylene and acrylic acid, contains excess NH3 and a thermosensitive nitrogenic releasing agent (e.g. p, p'-oxybisbenzenesulphonyl hydrazide) in order to improve foaming.