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1. WO2013009511 - POLYETHYLENE BLEND COMPOSITION SUITABLE FOR BLOWN FILM, METHOD OF PRODUCING THE SAME, AND FILMS MADE THEREFROM

Publication Number WO/2013/009511
Publication Date 17.01.2013
International Application No. PCT/US2012/045218
International Filing Date 02.07.2012
IPC
C08L 23/08 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
04Homopolymers or copolymers of ethene
08Copolymers of ethene
C08J 5/18 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
CPC
B32B 1/02
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1Layered products having a general shape other than plane
02Receptacles ; , i.e. rigid containers; , e.g. tanks
C08J 2323/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2323Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
04Homopolymers or copolymers of ethene
08Copolymers of ethene
C08J 2423/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2423Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
04Homopolymers or copolymers of ethene
06Polyethene
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
C08L 2203/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2203Applications
16used for films
C08L 2207/066
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2207Properties characterising the ingredient of the composition
06Properties of polyethylene
066LDPE (radical process)
Applicants
  • DOW GLOBAL TECHNOLOGIES LLC [US]/[US] (AllExceptUS)
  • EFFLER, Lawrence J. [US]/[US] (UsOnly)
  • SAVARGAONKAR, Nilesh R. [US]/[US] (UsOnly)
  • DEMIRORS, Mehmet [NL]/[US] (UsOnly)
  • BENSASON, Selim [TR]/[CH] (UsOnly)
  • KARJALA, Teresa P. [US]/[US] (UsOnly)
  • BUNKER, Gregory [US]/[US] (UsOnly)
  • SERRAT, Cristina [AR]/[US] (UsOnly)
  • WANG, Jian [CN]/[US] (UsOnly)
Inventors
  • EFFLER, Lawrence J.
  • SAVARGAONKAR, Nilesh R.
  • DEMIRORS, Mehmet
  • BENSASON, Selim
  • KARJALA, Teresa P.
  • BUNKER, Gregory
  • SERRAT, Cristina
  • WANG, Jian
Agents
  • ASHBURG, Ray
Priority Data
61/505,86908.07.2011US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POLYETHYLENE BLEND COMPOSITION SUITABLE FOR BLOWN FILM, METHOD OF PRODUCING THE SAME, AND FILMS MADE THEREFROM
(FR) COMPOSITION DE TYPE MÉLANGE DE POLYÉTHYLÈNES CONVENANT AU SOUFFLAGE DE FILMS, SON PROCÉDÉ DE PRODUCTION, ET FILMS OBTENUS À PARTIR DE CELLE-CI
Abstract
(EN)
The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film according to the present invention comprises the melt blending product of: (a) less than or equal to 4 percent by weight of a low density polyethylene (LDPE) having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 6 to 10; (b) 90 percent or greater by weight of a heterogeneous linear low density polyethylene (hLLDPE) having a density in the range of from 0.917 to 0.950 g/cm3, and a melt index (I2) in the range of from 0.1 to less than or equal to 5 g/10 minutes; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; and (e) optionally one or more antioxidants. When the polyethylene blend-composition is formed into a film via blown film process, the output rate is improved at least 6 percent relative to a similar linear low density polyethylene.
(FR)
Cette invention concerne une composition de type mélange de polyéthylènes convenant au soufflage de films, son procédé de production, et les films obtenus à partir de celle-ci. La composition de type mélange de polyéthylènes convenant au soufflage de films selon la présente invention comprend le produit de type mélange fondu constitué de : (a) une quantité inférieure ou égale à 4 % en poids de polyéthylène basse densité (LDPE) ayant une densité dans la plage de 0,915 à 0,935 g/cm3, un indice à l'état fondu (I2) compris entre une valeur supérieure à 0,8 et une valeur inférieure ou égale à 5 g/10 minutes, et une distribution des poids moléculaires (Mw/Mn) dans la plage de 6 à 10 ; (b) 90 % en poids ou plus d'un polyéthylène basse densité linéaire de type hétérogène (hLLDPE) ayant une densité dans la plage de 0,917 à 0,950 g/cm3, et un indice à l'état fondu (I2) compris entre 0,1 et une valeur inférieure ou égale à 5 g/10 minutes ; (c) éventuellement un agent de neutralisation à base d'hydrotalcite ; (d) éventuellement un ou plusieurs agents de nucléation ; et (e) éventuellement un ou plusieurs antioxydants. Quand la composition de type mélange de polyéthylènes selon l'invention est transformée en film par un procédé de soufflage de film, la vitesse de sortie est améliorée d'au moins 6 % par rapport à un polyéthylène basse densité linéaire similaire.
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