Dow Global Technolgoies LLC

Dow Brasil Indú´stria E Comércio De Produtos Químicios Ltda.

Eva-Maria Kupsch

Cornelis F J Den Doelder

Yifan Y Dong

Teresa Plumley Karjala

Rajen M Patel

Kim Louis Walton

Brian W Walther

Gary Robert Marchand

Otto J Berbee

Colin Li Pi Shan

Yushan Hu

Stefan Hinrichs

Ashish Batra

Jozef Van Dun

Barry Alan Morris

Didem Oner-Deliormanli

Stefan Ultsch

Jong Young Lee

Rajesh P Paradkar

Carmelo Declet Perez

Marlos Giuntini De Oliveira

Sylvie Vervoort

Nhi T Y Dang

Edward L Lee

Varun Thakur

Jouko Vyoerykkae

Bernard A Fehr

Burcak Conley

Jozef J Van Dun

Cornelis FJ Den Doelder

Embodiments of this disclosure include polymer blends comprising at least 90% by weight low density polyethylene (LDPE) polymer; and from 1% to 10% by weight ethylene acrylate copolymer. The ethylene acrylate copolymer is the polymerized reaction product of: at least 50% by wt. ethylene, based on the total weight of the monomers present in the ethylene acrylate copolymer; from 2% to 40% by wt. alkyl acrylate, based on the total weight of the monomers present in the ethylene acrylate copolymer; and from 0 to 20 wt. % of monocarboxylic acid monomer, based on the total weight of the monomers present in the ethylene acrylate copolymer.

Neck-in suppression for tubular LDPE based polymers for extrusion coating at medium and high line speed

Polymer blends, films, and coated substrates that include the polymer blends. The polymer blends include at least 90% by weight low density polyethylene polymer and from 1 to 10% by weight ionomer. The LDPE polymer has a melt index (I)from 2 g/10 mins to 6 g/10 mins, and a molecular weight distribution from 5 to 11 as determined by a conventional gel permeation chromatography method. The ionomer includes an ethylene acid copolymer, in which from 15% to 70% of acid groups are neutralized by sodium cation based on the total number of acid groups in the acid copolymer. The ethylene acid copolymer is the polymerized reaction product of: at least 50% by wt. ethylene, from 2 wt. % to 40 wt. % of monocarboxylic acid monomer, and from 0 to 20 wt. % of alkyl acrylate, based on the total wt. % of the monomers present in the ethylene acid copolymer.

Low density polyethylene with enhanced hot tack strength and adhesion-to-metal by the addition of ionomers

A polyethylene homopolymer comprising the following properties: a) a melt index (I2) from 1.0 to 3.5 dg/min; b) a Mw(abs) versus I2 relationship: Mw(abs)&#x2265;A+B(I2), where A=3.20&#xd7;10g/mole, and B=&#x2212;8.00&#xd7;10(g/mole)/(dg/min); c) a Mw(abs) versus I2 relationship: Mw(abs)&#x2264;C+D(I2), where C=3.90&#xd7;10g/mole, and D=&#x2212;8.00&#xd7;10(g/mole)/(dg/min).

Low density ethylene-based polymers for low speed extrusion coating operations

A process for producing an ethylene-based polymer comprises polymerizing, by the presence of at least one free-radical initiator and using a high pressure tubular polymerization process, a reaction mixture containing ethylene and at least one CTA system comprising one or more CTA components to produce the ethylene-based polymer. The free-radical initiator is dissolved in a solvent comprising a saturated hydrocarbon to form an initiator solution which is added to the polymerization using an initiator feed line to an initiator injection pump. At least 50 wt % of the solvent has i) a dry point of less than or equal to 160&#xb0; C. and ii) an initial boiling point of greater than or equal to 100&#xb0; C. The polymerization process has a ratio of inlet pressure to first peak temperature of less than or equal to 9 Bar/&#xb0; C. At least one CTA make-up stream is fed into the polymerization process, wherein less than or equal to 30 wt % of the at least one CTA make-up stream comprises one or more saturated hydrocarbon CTA(s) with a maximum carbon atom number of 6 per molecule.

Methods for producing low volatile tubular low density ethylene-based polymers for clean extrusion coating processing

The invention provides a film comprising at least two layers, a first layer and a second layer; and wherein the first layer is formed from a first composition comprising a polyester and/or a polylactic acid; and wherein the second layer is formed from a second composition comprising at least the following: A) a functionalized ethylene-based polymer, and B) at least one ethylene/alkylacrylate copolymer.

Films containing functional ethylene-based polymer compositions

The present disclosure provides a composition. In an embodiment, the composition includes A) an ethylene/acrylate interpolymer or an ethylene/acetate interpolymer; B) an ethylene/&#x3b1;-olefin multi-block copolymer; and C) a flame retardant. In an embodiment, the ethylene/acrylate interpolymer is a functionalized ethylene/acrylate interpolymer. The present composition exhibits improved dirt pick-up resistance.

Polymeric formulation with dirt pick-up resistance

Disclosed are multilayer structures comprising a polyolefin layer, a tie layer and a barrier layer wherein the tie layer is a formulation comprising a crystalline block copolymer composite (CBC) comprising i) an ethylene polymer (EP) comprising at least 90 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 90 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB).

Multilayered polyolefin-based films

Growing community of inventors

Horgen, Switzerland

Eva-Maria Kupsch