Dow Global Technolgoies LLC

Rohm and Haas Company

Keran Lu

Arkady L Krasovskiy

Scott T Matteucci

Kefu Sun

Yijian Lin

Jeffrey E Bonekamp

Mridula Babli Kapur

Alexander Williamson

Todd A Hogan

Jose Eduardo Ruiz

Ronald Wevers

Yushan Hu

Robert L Sammler

Harpreet Singh

Siddharth Ram Athreya

John L Sugden

Michelle Gallagher

Robert DJ Froese

Jerzy Klosin

Colin Li Pi Shan

Daniel J Arriola

Cornelis F J Den Doelder

David T Gillespie

Colin LiPiShan

Robert D J Froese

Stephanie M Whited

Andrew T Heitsch

Tian Lan

Teresita Kashyap

Laura Nunez

Todd O Pangburn

Luca Martinetti

Jianbo Hou

Rachel Em Brooner

Russell T Cooper

Cornelis Fj Den Doelder

Fengyi Zhang

Jeff Bonekamp

Mubashir Qamar Ansari

Embodiments of this disclosure are directed to ethylene-based polymers. The ethylene-based polymers are polymerized units derived from ethylene, diene, and optionally one or more C-Cα-olefins. The ethylene-based polymer includes a melt strength greater than negative 17 times the log base 10 of the melt index plus 25 ((MS)>−17*log (MI)+25). In the equation, MS is the melt strength in cN and MI is the melt index in g/10 min according to ASTM D1238. The ethylene-based polymer also includes an average g' that is greater than 0.70. The average g′ is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector.

Long-chain branched ethylene-based polymers

The disclosure are directed to a process for polymerizing ethylene-based polymers. The process includes polymerizing ethylene and optionally one or more (C-C)α-olefin monomer, and at least one diene, in the presence of at least one multi-chain catalyst and at least one single-chain catalyst. The process may include a solvent. The multi-chain catalyst in the process includes a plurality of polymerization sites. Long-chain branched polymers are synthesized by connecting the two polymer chains of the multi-chain catalyst with the diene, the joining of the two polymer chains being performed in a concerted manner during the polymerization. The ethylene-based polymers are produced and include at least two molecular weight polymer fractions. The multi-chain catalyst produces the high molecular weight fraction, which is the long-chain branched polymer.

Process for producing long-chain branched ethylene-based polymers

An injection molded cap or closure having a weld line, wherein the injection molded cap or closure is formed from an ethylene-based resin comprising a high molecular weight component and a low molecular weight component.

Injection molded caps or closures, and methods thereof

Embodiments of this disclosure are directed to ethylene-based polymers. The ethylene-based polymer are polymerized units derived from ethylene, diene, and optionally, one or more C3-C12 α-olefins. The ethylene-based polymer includes a melt viscosity ratio (V0.1/V100) at 190 C greater than 20. The V0.1 is the viscosity of the ethylene-based polymer at 190 C at a frequency of 0.1 radians/second, and the V100 is the viscosity of the ethylene-based polymer at 190 C at a frequency of 100 radians/second. Additionally, the ethylene-based polymer includes an average g greater than 0.86, where the average g′ is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector.

The present disclosure provides a fiber and fabrics made therefrom. In an embodiment, a fiber is provided and includes an odor control composition. The odor control composition includes (A) from 85 wt % to 99.5 wt % of an olefin-based polymer and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes: (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide.

Fiber with odor control component

A composition for odor control includes (A) from 85 wt % to 99.5 wt % of an olefin-based compound and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes a blend of (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide. The composition has a methyl mercaptan odor suppression value of greater than 45% as measured in accordance with ASTM D5504-12.

Composition for odor suppression

The present disclosure provides a film. In an embodiment, a multilayer film is provided and includes (A) a seal layer, (B) a barrier layer, and (C) an odor control layer. The odor control layer includes an odor control composition containing (A) from 85 wt % to 99.5 wt % of an olefin-based polymer and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes a blend of: (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide. The composition has a methyl mercaptan odor suppression value of greater than 45% as measured in accordance with ASTM D5504-12.

Odor-managed ostomy film

The present disclosure provides a plastic living hinge. The plastic living hinge includes a blend containing (A) an ethylene-based polymer; and (B) a composite component selected from the group consisting of a block composite, a crystalline block composite, and a combination thereof.

Plastic living hinges with block composite polymer

The present disclosure provides a composition. In an embodiment, the composition includes (A) from 85 wt % to 99 wt % of an olefin-based polymer and (B) from 15 wt % to 1 wt % of an odor suppressant. The odor suppressant is a blend of (i) particles of zinc oxide, and (ii) zinc ionomer. The zinc oxide particles have a D50 particle size from 100 nm to 3000 nm, a surface area from 1 m/g to 9 m/g, and a porosity less than 0.020 m/g. The composition has a methyl mercaptan odor suppression value of less than 70 at 3 days as measured in accordance with ASTM D5504-12.

The present disclosure provides a film. In an embodiment, a film for suppressing odors is provided and includes a composition of (A) from 85 wt % to 99 wt % of a thermoplastic polymer and (B) from 15 wt % to 1 wt % of an odor suppressant. The odor suppressant is a blend composed of (Bi) particles of zinc oxide and (Bii) zinc ionomer. The zinc oxide particles (Bi) have a D50 particle size from 100 nm to 3000 nm, a surface area from 1 m/g to 9 m/g, and a porosity less than 0.020 m/g. The composition has a methyl mercaptan odor suppression value less than 70 at 3 days exposure to methyl mercaptan as measured in accordance with ASTM D5504-12.

Film for odor suppression

The present disclosure provides a plastic living hinge. The plastic living hinge includes a blend containing (A) an ethylene-based polymer; (B) a propylene-based polymer; and (C) a composite component selected from the group consisting of a block composite, a crystalline block composite, and a combination thereof.

A molded article formed from a polymer composition, the polymer composition consisting essentially of: an ethylene homopolymer or ethylene/alpha-olefin copolymer; greater than 20 ppm of a fluoropolymer; and optionally, up to 5 wt. % of one or more of processing aids, acid neutralizers, stabilizers, phosphites, antioxidants, metal de-activators, pigments or colorants, or fillers; wherein the molded article exhibits an oxygen transmission rate [OTR, (cc*mm)/(m*day*atm)]&#x2264;&#x2212;3181 (cc*mm)/g*m*day*atm)&#xd7;[Density, g/cc]+3077, (cc*mm)/(m*day*atm).

Molded articles and methods thereof

Growing community of inventors

Lake Jackson, TX, United States of America

Keran Lu