Translucent Propylene-Based Elastomeric Compositions

A composition is described in one aspect as comprising one or more propylene-alpha-olefin terpolymers; wherein the propylene-alpha-olefin terpolymer(s) possess a melting temperature (Tm) within the range of from less than 105° C., and a heat of fusion (Hf) within the range of from less than 75 J/g;...

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Bibliographische Detailangaben
Hauptverfasser:	LAWRENCE GARY K, JACOB SUNNY, BLOK EDWARD JOHN, RAULIE RALPH E
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A composition is described in one aspect as comprising one or more propylene-alpha-olefin terpolymers; wherein the propylene-alpha-olefin terpolymer(s) possess a melting temperature (Tm) within the range of from less than 105° C., and a heat of fusion (Hf) within the range of from less than 75 J/g; one or more polyolefin(s); and oil; wherein fillers are present, if at all, at a level that maintains a Haze value of 65% or less for the composition. The terpolymer in one embodiment is a polymer comprising at least 65 wt %, by weight of the terpolymer, of propylene-derived units, within the range of from 5 to 35 wt % of ethylene or other alpha-olefin and a diene such as ethylidiene norbornene, and in certain embodiments having a Mooney Viscosity (ML(1+4)@125° C.) within the range of from 10 to 50 (ASTM D1646). The compositions can be cured to form transparent or translucent articles such as sheets that are also flexible.