Als wärmeschrumpfbares Schrumpfetikett geeignete Harzzusammensetzung und Folie, die diese enthält

• Main Authors: KANAI, GEN, TAYANO, TAKAO, SEZUME, TADASHI
• Format: Patent
• Language: German
• Published: 02.06.2005
• Edition: 7
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A resin composition for heat-shrinkable polypropylene shrink label, comprises: from 50 to 95% by weight of a crystalline propylene- alpha -olefin random copolymer mainly comprising propylene, the copolymer satisfying the following requirements (1) to (3); and from 5 to 50% by weight of an alicyclic hydrocarbon resin having a softening temperature of not lower than 110 DEG C: Requirement (1): The copolymer exhibits a melt flow rate of from 0.5 to 10 g/10 min at a temperature of 230 DEG C and a load of 2.16 kg; Requirement (2) : The copolymer exhibits a main fusion peak temperature (Tp) of from 100 DEG C to 140 DEG C as determined by means of a differential scanning calorimeter (DSC); and Requirement (3) : The copolymer exhibits T50 of not higher than 125 DEG C with the proviso that T50 is a temperature ( DEG C) at which an amount of heat of fusion calculated from a lower temperature side is 50% of DELTA Hm supposing that DELTA Hm is the total amount of heat of fusion of the copolymer as determined by DSC.