Non-rigid propylene resin composition

Non-rigid propylene resin composition

A soft propylene resin composition comprises: (a) a block (I) comprising a stereoblock propylene polymer (A) containing a chain of propylene units formed by head to tail bonding and containing an isotactic block; and (b) a block (II) comprising a copolymer of at least propylene and ethylene. Indepen...

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Hauptverfasser: SATOU NAOMASA, SHIMIZU FUMIHIKO, TAKAYANAGI KENJIROU, YAMADA FUMIYOSHI, XIN BRUCE
Format: Patent
Sprache:eng
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CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator SATOU NAOMASA
SHIMIZU FUMIHIKO
TAKAYANAGI KENJIROU
YAMADA FUMIYOSHI
XIN BRUCE
description A soft propylene resin composition comprises: (a) a block (I) comprising a stereoblock propylene polymer (A) containing a chain of propylene units formed by head to tail bonding and containing an isotactic block; and (b) a block (II) comprising a copolymer of at least propylene and ethylene. Independent claims are also included for: (a) a soft propylene resin composition comprising essentially soft propylene resin particles with 10-300 MPa tensile elastic modulus (according to JIS K 7113), 70-100% bulk average light transmittance (JIS K 7105), 100-165[deg]C peak temperature measured by DSC, and at least 0.3 g/cm 3> density (JIS K 7365); and (b) a soft propylene resin composition having a stereoblock structure and comprising essentially soft propylene resin particles with at least 0.3 g/cm 3> density (according to JIS K 7365).
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Non-rigid propylene resin composition
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