BR9815526A - Heat sealable multi-layer film, pouch and bag making process - Google Patents

Heat sealable multi-layer film, pouch and bag making process

Info

Publication number
BR9815526A
BR9815526A BR9815526-1A BR9815526A BR9815526A BR 9815526 A BR9815526 A BR 9815526A BR 9815526 A BR9815526 A BR 9815526A BR 9815526 A BR9815526 A BR 9815526A
Authority
BR
Brazil
Prior art keywords
film
volume
ethylene
total
layer
Prior art date
Application number
BR9815526-1A
Other languages
Portuguese (pt)
Inventor
Benjamin Andrew Smillie
Original Assignee
Du Pont Canada
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Du Pont Canada filed Critical Du Pont Canada
Publication of BR9815526A publication Critical patent/BR9815526A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Abstract

"FILME MULTI-CAMADAS SELáVEL A QUENTE, BOLSA E PROCESSO PARA A FABRICAçãO DE BOLSAS". A presente invenção refere-se à utilização de um filme multi-camadas selável a quente para a fabricação de bolsas para conter materiais fluidos, que se apresentam em forma tubular e possuem extremidades seladas transversalmente a quente, com o mencionado filme compreendendo pelo menos uma camada compreendendo cerca de 10% em volume da estrutura geral do filme, sendo fabricado a partir de um copolímero de etileno-estireno obtido pela utilização de um processo de polimerização de catalisador de sítio único e uma ou mais das seguintes camadas: (a) pelo menos um interpolímero selecionado a partir de interpolímeros de etileno e uma ou mais <244>-olefinas C~ 3~-C~ 20~ fabricadas através de processos de polimerização utilizando catalisador de sítio único, catalisador que não seja de sítio único e misturas de tais catalisadores, bem como suas ligas, possuindo os mencionados interpolímeros densidade na faixa de cerca de 0,87 a 0,940 g/cc e um índice de fusão de cerca de 0,2 a 20 dg/minuto, compreendendo cerca de 10 a 90% em volume da estrutura total do filme; (b) pelo menos uma camada de barreira selecionada a partir de polímeros de nylon compreendendo cerca de 5 a 30% em volume da estrutura total do filme; polímeros de tereftalato de polietileno compreendendo cerca de 5 a 15% em volume da estrutura total do filme; nylon amorfo compreendendo cerca de 5 a 30% em volume da estrutura total; álcool vinil etileno compreendendo cerca de 5 a 25% em volume da estrutura total do filme; (c) pelo menos uma camada compreendendo cerca de 5 a 15% em volume da estrutura total do filme e selecionada a partir de polímero etileno vinil acetato, copolímeros de ácido etileno, ionómeros ou copolímeros de etileno funcionalizados por anidrido; e (d) pelo menos um homopolímero de etileno de alta pressão."MULTI-LAYER FILM HOT SELECTABLE, PURSE AND PROCESS FOR THE PRODUCTION OF POCKETS". The present invention relates to the use of a heat-sealable multi-layer film for the manufacture of bags to contain fluid materials, which are in tubular form and have ends transversely heat sealed, with said film comprising at least one layer comprising about 10% by volume of the general structure of the film, being manufactured from an ethylene-styrene copolymer obtained by using a single site catalyst polymerization process and one or more of the following layers: (a) at least an interpolymer selected from ethylene interpolymers and one or more <244> -C ~ 3 ~ -C ~ 20 ~ olefins manufactured using polymerization processes using single site catalyst, non-single site catalyst and mixtures of such catalysts, as well as their alloys, with the aforementioned interpolymers having a density in the range of about 0.87 to 0.940 g / cc and a melting index of about from 0.2 to 20 dg / minute, comprising about 10 to 90% by volume of the total structure of the film; (b) at least one barrier layer selected from nylon polymers comprising about 5 to 30% by volume of the total film structure; polyethylene terephthalate polymers comprising about 5 to 15% by volume of the total film structure; amorphous nylon comprising about 5 to 30% by volume of the total structure; ethylene vinyl alcohol comprising about 5 to 25% by volume of the total structure of the film; (c) at least one layer comprising about 5 to 15% by volume of the total film structure and selected from ethylene vinyl acetate polymer, ethylene acid copolymers, ionomers or anhydride functionalized ethylene copolymers; and (d) at least one high pressure ethylene homopolymer.

BR9815526-1A 1997-05-02 1998-04-29 Heat sealable multi-layer film, pouch and bag making process BR9815526A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US4551797P 1997-05-02 1997-05-02
US6466298A 1998-04-23 1998-04-23
PCT/CA1998/000424 WO1998050230A1 (en) 1997-05-02 1998-04-29 Ethylene/styrene polymer sealant layer for use in liquid packaging

Publications (1)

Publication Number Publication Date
BR9815526A true BR9815526A (en) 2002-02-05

Family

ID=26722873

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9815526-1A BR9815526A (en) 1997-05-02 1998-04-29 Heat sealable multi-layer film, pouch and bag making process

Country Status (4)

Country Link
EP (1) EP0977666A1 (en)
BR (1) BR9815526A (en)
CA (1) CA2288865A1 (en)
WO (1) WO1998050230A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7700707B2 (en) 2002-10-15 2010-04-20 Exxonmobil Chemical Patents Inc. Polyolefin adhesive compositions and articles made therefrom
JP4972284B2 (en) 2002-10-15 2012-07-11 エクソンモービル・ケミカル・パテンツ・インク Multiple catalyst systems for olefin polymerization and polymers produced therefrom
US8697164B2 (en) 2011-04-18 2014-04-15 Dole Fresh Vegetables, Inc. Commercial lettuce packaging in the field
JP6153927B2 (en) * 2011-06-30 2017-06-28 デュポン テイジン フィルムズ ユー．エス．リミテッド パートナーシップ Dimensionally stable multilayer polyester film

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE248060T1 (en) * 1993-06-24 2003-09-15 American Nat Can Co MULTI-LAYER STRUCTURES MADE OF SINGLE-SITE CATALYZED POLYMERS
US5658625A (en) * 1994-05-25 1997-08-19 W.R. Grace & Co.-Conn. Film containing alpha-olefin/vinyl aromatic copolymer

Also Published As

Publication number Publication date
WO1998050230A1 (en) 1998-11-12
CA2288865A1 (en) 1998-11-12
EP0977666A1 (en) 2000-02-09

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A,6A,7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1832 DE 14/02/2006.