PROPYLENE RANDOM COPOLYMER AND ITS LAMINATED FILM

PURPOSE: To obtain a propylene random copolymer having excellent blocking resistance and very scarcely deteriorates in low-temperature heat sealability even when subjected to a corona discharge treatment and is also excellent in transparency and to obtain its laminated film. CONSTITUTION: This copol...

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Bibliographic Details
Main Authors EI NAOFUMI, SADATOSHI HAJIME, SATO ATSUSHI
Format Patent
LanguageEnglish
Published 09.07.1996
Edition6
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING-UP
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Summary:PURPOSE: To obtain a propylene random copolymer having excellent blocking resistance and very scarcely deteriorates in low-temperature heat sealability even when subjected to a corona discharge treatment and is also excellent in transparency and to obtain its laminated film. CONSTITUTION: This copolymer is one comprising a proplyene component and a 4-10C α-olefin component and having the following properties: the content of the α-olefin component is 6-40wt.%, the intrinsic viscosity [η] as measured in tetralin at 135 deg.C is in the range: 0.45<=[η]<=0.5dl/g, and the relationship: Tm<=140-35.693×log10 (CXS) may hold (Tm is the melting point as measured with a differential scanning calorieter, and CXS is the content of xylene-solubles at 20 deg.C; and a laminated film comprising this copolymer.
Bibliography:Application Number: JP19950017657