PROPYLENE POLYMER COMPOSITION HAVING IMPROVED SMELL

PROPYLENE POLYMER COMPOSITION HAVING IMPROVED SMELL

PURPOSE:The titled composition having extremely weak smell obtained by blending a crystalline propylene polymer with a phenolic or phosphorous ester antioxidant and a metal compound capable of reducing carbonyl. CONSTITUTION:(A) 100pts.wt. crystalline propylene polymer podwer (single polymer, propyl...

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Bibliographische Detailangaben
1. Verfasser: OSEGAKI KIMIHO
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Zusammenfassung:PURPOSE:The titled composition having extremely weak smell obtained by blending a crystalline propylene polymer with a phenolic or phosphorous ester antioxidant and a metal compound capable of reducing carbonyl. CONSTITUTION:(A) 100pts.wt. crystalline propylene polymer podwer (single polymer, propylene-ethylene random or block copolymer) is blended with (B) 0.005- 1pt.wt. preferably 0.02-0.5pt.wt. phenolic or phosphorous ester antioxidant (2,6- di-t-butyl-p-cresol, etc. dissolved in solvent such as water, methanol, etc.) and (C) 0.001-0.3pt.wt. preferably 0.001-0.2pt.wt. metal compound (LiAlH4, NaBH4, NaOC2H5, etc.) capable of reducing carbonyl, kneaded in a molten state by an extruder, pelletized, and molded.