SILANE GRAFTED POLYTHYLENE WITH A REDUCED LEVEL OF EXTRACTABLE METHANOL

A hydrophobic molecular sieve having a pore size of about 5A can be blended into a silane grafted crosslinkable polyethylene to reduce the level of extractable methanol present in articles made with such polymeric compositions after crosslinking. The molecular sieve apparently acts to "lock-up&...

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Bibliographische Detailangaben
1. Verfasser:	CARL M. MAHABIR
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	BLASTING CHEMISTRY COMPOSITIONS BASED THEREON ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING 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 THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WEAPONS
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Beschreibung
Zusammenfassung:	A hydrophobic molecular sieve having a pore size of about 5A can be blended into a silane grafted crosslinkable polyethylene to reduce the level of extractable methanol present in articles made with such polymeric compositions after crosslinking. The molecular sieve apparently acts to "lock-up" the methanol generated as a by-product of the crosslinking reaction without compromising the desirable chemical or physical properties of articles that are manufactured with the crosslinked polyethylene. Se describe un tamiz molecular hidrofóbico que tiene un tamaño de poro de aproximadamente 5 Å, que puede ser mezclado en un polietileno reticulable injertado con silano, para reducir el nivel de metanol extraíble presente en los artículos elaborados con tales composiciones poliméricas, después de la reticulación. El tamiz molecular aparentemente actúa para "asegurar" el metanol generado como un sub- producto de la reacción de reticulación, sin comprometer las propiedades químicas o físicas de los artículos que son fabricados con el polietileno reticulado.