IMPROVED MULTILAYER BLOWN FILMS

Coextruded multilayer blown films are produced comprising: a core layer comprising at least one random polypropylene copolymer; at least one skin or intermediate layer adjacent to said core layer; wherein the coextruded multilayer film has at least 30% higher machine direction tear, at least 30% imp...

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1. Verfasser:	DANIEL J. FALLA
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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creator	DANIEL J. FALLA
description	Coextruded multilayer blown films are produced comprising: a core layer comprising at least one random polypropylene copolymer; at least one skin or intermediate layer adjacent to said core layer; wherein the coextruded multilayer film has at least 30% higher machine direction tear, at least 30% improved tear ratio (machine direction tear divided by transverse direction tear) and at least 10% lower film haze, relative to a similar multilayer film comprising at least one impact polypropylene copolymer in the core layer. Se describen películas sopladas en multicapas coextruidas que comprenden: una capa de núcleo que comprende por lo menos un copolímero de polipropileno aleatorio; por lo menos una capa de forro o intermedia adyacente a la capa de núcleo; en donde la película en multicapas coextruida tiene por lo menos 30% de desgarramiento en dirección de la máquina más alto, por lo menos 30% de proporción de desgarramiento mejorado (desgarramiento en dirección de la máquina dividido por el desgarramiento en dirección transversal) y por lo menos 110% de turbidez de película más bajo, en relación con una película en multicapas similar que comprende por lo menos un copolímero de polipropileno de impacto en la capa de núcleo.
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FALLA</creatorcontrib><description>Coextruded multilayer blown films are produced comprising: a core layer comprising at least one random polypropylene copolymer; at least one skin or intermediate layer adjacent to said core layer; wherein the coextruded multilayer film has at least 30% higher machine direction tear, at least 30% improved tear ratio (machine direction tear divided by transverse direction tear) and at least 10% lower film haze, relative to a similar multilayer film comprising at least one impact polypropylene copolymer in the core layer. Se describen películas sopladas en multicapas coextruidas que comprenden: una capa de núcleo que comprende por lo menos un copolímero de polipropileno aleatorio; por lo menos una capa de forro o intermedia adyacente a la capa de núcleo; en donde la película en multicapas coextruida tiene por lo menos 30% de desgarramiento en dirección de la máquina más alto, por lo menos 30% de proporción de desgarramiento mejorado (desgarramiento en dirección de la máquina dividido por el desgarramiento en dirección transversal) y por lo menos 110% de turbidez de película más bajo, en relación con una película en multicapas similar que comprende por lo menos un copolímero de polipropileno de impacto en la capa de núcleo.</description><language>eng ; spa</language><subject>AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; PERFORMING OPERATIONS ; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE ; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR ; SHAPING OR JOINING OF PLASTICS ; TRANSPORTING ; WORKING OF PLASTICS ; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151012&DB=EPODOC&CC=MX&NR=2015009120A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20151012&DB=EPODOC&CC=MX&NR=2015009120A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DANIEL J. 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Se describen películas sopladas en multicapas coextruidas que comprenden: una capa de núcleo que comprende por lo menos un copolímero de polipropileno aleatorio; por lo menos una capa de forro o intermedia adyacente a la capa de núcleo; en donde la película en multicapas coextruida tiene por lo menos 30% de desgarramiento en dirección de la máquina más alto, por lo menos 30% de proporción de desgarramiento mejorado (desgarramiento en dirección de la máquina dividido por el desgarramiento en dirección transversal) y por lo menos 110% de turbidez de película más bajo, en relación con una película en multicapas similar que comprende por lo menos un copolímero de polipropileno de impacto en la capa de núcleo.</abstract><oa>free_for_read</oa></addata></record>
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language	eng ; spa
recordid	cdi_epo_espacenet_MX2015009120A
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subjects	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
title	IMPROVED MULTILAYER BLOWN FILMS
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