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1. WO2022164518 - POLYETHYLENE COMPOSITIONS, FILMS, AND ARTICLES

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Publication Number WO/2022/164518
Publication Date 04.08.2022
International Application No. PCT/US2021/062637
International Filing Date 09.12.2021
IPC
B32B 27/32 2006.1
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
27Layered products essentially comprising synthetic resin
32comprising polyolefins
C08L 23/08 2006.1
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
CPC
B32B 2250/03
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
2250Layers arrangement
033 layers
B32B 2250/24
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
2250Layers arrangement
24All layers being polymeric
B32B 2250/242
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
2250Layers arrangement
24All layers being polymeric
242All polymers belonging to those covered by group B32B27/32
B32B 2270/00
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
2270Resin or rubber layer containing a blend of at least two different polymers
B32B 2307/30
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
2307Properties of the layers or laminate
30having particular thermal properties
B32B 2307/31
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
2307Properties of the layers or laminate
30having particular thermal properties
31Heat sealable
Applicants
  • DOW GLOBAL TECHNOLOGIES LLC [US]/[US]
Inventors
  • BISWAS, Sanjib
  • DEGROOT, Jacquelyn A.
  • DEMIRORS, Mehmet
  • SPIEKERMANN, Erica
  • NAUMOVITZ, John A.
  • GINGER, Douglas S.
  • MEKAP, Dibyaranjan
Agents
  • LINK, J. Jason
Priority Data
63/141,51626.01.2021US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) POLYETHYLENE COMPOSITIONS, FILMS, AND ARTICLES
(FR) COMPOSITIONS DE POLYÉTHYLÈNE, FILMS ET ARTICLES
front page image
Abstract
(EN) Embodiments of a polyethylene composition are provided, which may include a first polyethylene fraction comprising at least one peak in a temperature range of from 40C to 75C in an elution profile via improved comonomer composition distribution (iCCD) analysis method, where a first polyethylene area fraction is an area in the elution profile from 40C to 75C, and where the first polyethylene fraction area comprises from 45% to 65% of the total area of the elution profile; and a second polyethylene fraction comprising at least one peak in a temperature range of from 85C to 110C in the elution profile, where a second polyethylene area fraction is an area in the elution profile from 85C to 110C, and where the second polyethylene fraction area comprises from 15% to 35% of the total area of the elution profile, wherein the polyethylene composition has a density of 0.905 g/cm3 to 0.918 g/cm3, a melt index (I2) of 0.7 g/10 minutes to 3.5 g/10 minutes, and wherein the composition has a melt index ratio ( I10/I2) that meets the following equation: I10/I2 < 7.0 - 1.2 log (I2).
(FR) Les modes de réalisation de la présente invention concernent une composition de polyéthylène qui peut comprendre une première fraction de polyéthylène comprenant au moins un pic dans une plage de température allant de 40 °C à 75 °C dans un profil d'élution par l'intermédiaire d'un procédé d'analyse de distribution de composition de comonomère améliorée (iCCD), une première fraction de zone de polyéthylène étant une zone dans le profil d'élution de 40 °C à 75 °C, et la première zone de fraction de polyéthylène représentant de 45 % à 65 % de la surface totale du profil d'élution ; et une seconde fraction de polyéthylène comprenant au moins un pic dans une plage de température allant de 85 °C à 110 °C dans le profil d'élution, une seconde fraction de surface de polyéthylène étant une zone dans le profil d'élution de 85 °C à 110 °C, et la seconde zone de fraction de polyéthylène représentant de 15 % à 35 % de la surface totale du profil d'élution, la composition de polyéthylène ayant une densité de 0,905 g/cm3 à 0,918 g/cm3, un indice de fusion (I2) de 0,7 g/10 minutes à 3,5 g/10 minutes, et la composition ayant un rapport d'indice de fluidité (I10/I2) qui satisfait à l'équation suivante : I10/I2 < 7,0 - 1,2 log (I2).
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