POLYOLEFIN-BASED ELASTIC FILM STRUCTURES, LAMINATES AND METHODS THEREOF

A stretch-modified elastomeric multilayer film comprising a core layer comprising a first propylene/alpha-olefin copolymer, wherein the first propylene/alpha-olefin copolymer comprises at least 50 wt. % propylene, has a melt flow rate (230C/2.16 Kg) from 0.1 g/10 min to 35 g/10 min, and has a crysta...

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Bibliographic Details
Main Authors Degroot Jacquelyn A, Wevers Ronald, Chang Andy C
Format Patent
LanguageEnglish
Published 31.08.2017
Subjects
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
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Summary:A stretch-modified elastomeric multilayer film comprising a core layer comprising a first propylene/alpha-olefin copolymer, wherein the first propylene/alpha-olefin copolymer comprises at least 50 wt. % propylene, has a melt flow rate (230C/2.16 Kg) from 0.1 g/10 min to 35 g/10 min, and has a crystallinity in the range of from at least 1 percent by weight to 40 percent by weight, and at least one outer layer independently comprising a second propylene/alpha-olefin copolymer and from 2.5 to 30 wt. % of an antiblock agent, wherein the second propylene/alpha-olefin copolymer comprises at least 50 wt. % propylene, has a melt flow rate (230C/2.16 Kg) from 0.1 g/10 min to 35 g/10 min, and has a crystallinity in the range of from at least 1 percent by weight to 40 percent by weight, wherein the crystallinity of the first propylene/alpha-olefin copolymer is equal to or greater than the crystallinity of the second propylene/alpha-olefin copolymer.
Bibliography:Application Number: US201515509235