The Dow Chemical Company

Dow Global Technolgoies LLC

Kyle G Kummer

Michael E Rowland

Yunwa Wilson Cheung

Kim Louis Walton

Hongyu Chen

Pak-Wing Steve Chum

Shih-Yaw Lai

Morgan Mark Hughes

Haiyang Yu

Stephen R Betso

Morris S Edmondson

Robert R Turley

Robert R Blanchard

Kevin W McKay

Lawrence T Kale

Edwin R Feig

Xiaolian Hu

James J Hill

Charles F Diehl

Wenbin Liang

Jeffrey C Munro

Yong Chen

Lisa S Madenjian

Wanfu Ma

Jose M Rego

David Wang

Yunma Wilson Cheung

A composition comprising at least the following components: A) an olefin multi-block copolymer; and B) a silicone rubber that comprises pendant vinyl groups, and optionally comprises terminal vinyl groups.

Olefin multi-block copolymer / silicone rubber compositions and foams formed from the same

A composition comprising at least the following: A) an olefin multi-block copolymer; B) a silicone rubber; C) a tackifier.

Olefin multi-block copolymer / silicone rubber / tackifier compositions and foams

A filled polymer composition comprises (i) an ethylene/&#x3b1;-olefin interpolymer, and (ii) a filler. The ethylene/&#x3b1;-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block interpolymer has a number of unique characteristics disclosed here. The filled polymer compositions provided herein, in certain embodiments, have relatively higher heat resistance and improved noise, vibration and harshness properties and can be used in automotive floorings, roofings, wire and cable coating applications.

Filled polymer compositions made from interpolymers of ethylene/&#x3b1;-olefins and uses thereof

The subject invention is directed to a rheology-modified ethylene polymer having less than 0.5 weight percent gel, a composition distribution breadth index (CDBI) greater than 50 percent, and a molecular weight distribution (M /M ) of less than 4.0, which is characterized as having improved rheological performance and/or melt strength attributes relative to the unmodified polymer. The subject invention is further directed to polymer blends which comprise the rheology-modified polymers, and to a process for preparing the rheology-modified polymers.

Rheology-modified polyolefins

The subject invention is directed to a rheology-modified ethylene polymer having less than 0.5 weight percent gel, a composition distribution breadth index (CDBI) greater than 50 percent, and a molecular weight distribution (M.sub.w /M.sub.n) of less than 4.0, which is characterized as having improved rheological performance and/or melt strength attributes relative to the unmodified polymer. The subject invention is further directed to polymer blends which comprise the rheology-modified polymers, and to a process for preparing the rheology-modified polymers.

Formulated compositions having good uncured ('green') and cured physical properties are disclosed. The compositions comprise at least one substantially linear ethylene/C.sub.3 -C.sub.20 .alpha.-olefin copolymer, or alternately, at least one linear ethylene/C.sub.5 -C.sub.20 .alpha.-olefin copolymer. The compositions are easily molded and have particular utility in making wire and cable coatings.

Formulated ethylene/.alpha.-olefin elastomeric compounds

Substantially linear ethylene polymers, e.g., polyethylenes prepared by constrained geometry catalysis (substantially linear ethylene), which are grafted with one or more unsaturated organic compounds containing both ethylenic unsaturation and a carbonyl group, e.g., maleic anhydride, exhibit desirable adhesive properties. These graft-modified substantially linear ethylene polymers also impart desirable compatibility and impact properties to various thermoplastic polymer blends.

Graft-modified substantially linear ethylene polymers and methods for

Graft-modified, substantially linear ethylene polymers and methods for

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Lake Jackson, TX, United States of America

Kyle G Kummer