Exxonmobil Chemical Patents Inc.

Kimari T M Slaughter

Andy Haishung Tsou

Yong Yang

Bethany M Welke

Sudhin Datta

Antonios K Doufas

Hamidreza Khakdaman

Ron Walker

Alexander I Norman

Krishnan Anantha Narayana Iyer

Hillary L Passino

Sebastian Vasquez

Lynette E Home-Campbell

Dinara R Sunagatullina

This invention relates to a thermoplastic vulcanizate having excellent elongation comprising an isotactic polypropylene matrix phase in which a cross-linked ethylene-propylene-diene terpolymer (EPDM) is dispersed, the vulcanizate comprising the reaction product of:

Compatibilized thermoplastic vulcanizate compositions

Stable star-structured functional polyolefins and methods of making them, the functional polyolefins comprising a polyolefin bound at any position along its chain length to at least one nucleophile-containing silane of the following formula: wherein Y is a di- or trivalent linker group selected from heteroatoms, C1 to C10 alkylenes, and other groups disclosed herein; Nu is a nucleophilic atom or unsaturation group; R5 is selected from hydrogen, and C1 to C10 alkyls, and other groups as disclosed herein; X is a divalent group selected from linear and branched alkylenes and heteroatom-alkylenes, and other groups as disclosed herein; and PO is a polyolefin having a weight average molecular weight of at least 400 g/mole; with the proviso that at least one of R1, R2, and R3 is selected from the same or different functional polyolefin moieties. Star-structured functional polyolefins are useful as filler dispersive additives in tire formulations and processing aids.

Stable star-structured functional polyolefins

In an embodiment, a monolayer, sealable film includes polyethylene; and between about 0.2 wt % and about 10 wt % of a branched cyclic olefin copolymer (bCOC) comprising: between about 50 wt % to about 98 wt % ethylene; and between about 2 wt % and about 50 wt % cyclic olefin derived monomer units. In another embodiment, a receptacle for containing organic material (such as food), gas, and/or fluent material includes a storage zone; a sealing zone extending around at least a portion of the storage zone; and a film structure having an exterior surface and a storage side surface facing the storage zone, wherein the film structure comprises a gas barrier film, comprising: polyethylene; and between about 0.2 wt % and about 10 wt % of a branched cyclic olefin copolymer (bCOC) comprising: between about 50 wt % and about 98 wt % ethylene; and between about 2 wt % and about 50 wt % cyclic olefin derived monomer units.

Polyethylene and cyclic olefin copolymer blend compositions with oxygen barrier properties and articles made therefrom

A composite comprising a polyethylene and within a range from 1 wt % to 25 wt % of at least one cyclic-olefin copolymer by weight of the composition, where the polyethylene may have a density of at least 0.90 g/cm, and where the cyclic-olefin copolymer has a glass transition temperature (Tg) of at least 30&#xb0; C. Disclosed also is the feature of orienting the composite to form an oriented article, wherein the article comprises rods having an average length of at least 1 &#x3bc;m, and at least 5 nm in average diameter.

Polyethylene compositions comprising cyclic-olefin copolymers

Growing community of inventors

Baytown, TX, United States of America

Kimari T M Slaughter