The Dow Chemical Company

Dow Global Technolgoies LLC

Dupont Dow Elastomers Inc.

H.b. Fuller Licensing & Financing Inc.

Kimberly-clark Worldwide, Inc.

Bp Chemicals Limited

Dow Europe S.a.

Osborne K. Mckinney

David C. Kelley

Deepak R. Parikh

Lawrence T. Kale

Sharon L. Baker

Pradeep Jain

Deepak R Parikh

Michael K Laughner

Martin J Guest

Brian W S Kolthammer

Stephen R Betso

Rajen M Patel

David C Kelley

Malcolm F Finlayson

Robert S Cardwell

Lawrence T Kale

Thoi H Ho

Gary Robert Marchand

George W Knight

Walter Werner Schmiegel

Steven Richard Oriani

Raymond Lynn Laakso, Jr

Osborne K McKinney

Larry Alan Meiske

Antonio Batistini

Peter Anthony Fox

Steven M Ueligger

Carlos Gilberto Ortiz

Debra J Mangold

Larry Duane Cady

Wasif K Ahmed

Sharon L Baker

Ralph E Guerra

Craig C Garrison

Teresa Plumley Karjala

H Craig Silvis

Selim Yalvac

Morgan Mark Hughes

Susan Elaine Shawver

Mark S Kroll

Jay Sheldon Shultz

David B Malcolm

Kenneth B Stewart

Paul Windsor Estey

David R Speth

Kenneth Bradley Close

David Jon Baer

Thomas J McKeand

C Allen Smith

Richard C Beck

Yuh-Chin Hwang

Michael S Keehr

Don J Germano

James C Stevens

David R Wilson

William L Bunnelle

Jeffrey S Lindquist

Pak-Wing Steve Chum

Peter N Nickias

Kalyan Sehanobish

Jasson T Patton

Daniel D VanderLende

Brian W Kolthammer

Laura Bauerle Weaver

Seema V Karande

Thomas F Kauffman

Ronald P Markovich

Morris S Edmondson

Cynthia L Rickey

Eugene R Simmons

Lee Spencer

Peter Remmers

Thomas H Quinn

James R Bethea

Harald Werenicz

Ian M Munro

Mark G Katsaros

Thomas Wittkopf

Kevin W McKay

Philip Howard

Keith C Knutson

Janelle C Cameron

Henry George Heck

Gerhard Voss

Thomas J McKeand, Jr

William R Van Volkenburgh

Beth M Eichler-Johnson

Robert G Polance, Ii

Kevin P Peil

Christopher James Frye

Jimmy D Allen

Timothy E Clayfield

Stanley W Smith

Michael Francis Martin

Peter J Maddox

S Roy Partington

Peter S Williams

J Mark Winter

M Stephen Edmondson

Christian Daniel

Wendy Hoenig

Klye G Kummer

Wasif Ahmed Khan

Osborne K Mckinney

A nonwoven web made from a polymeric fiber blend comprising at least one elastomeric polyolefin and at least one nonelastomeric polyolefin useful as the elastic base sheet for a nonwoven laminate is disclosed. Preferably, the polymeric blend will comprise a nonelastomeric resin in the range of from about 10 to about 90 percent by weight, and an elastomeric resin of from about 90 to about 10 percent by weight. The elastomeric polyolefin will have a density of less than about 0.885 g/cmand the nonelastomeric polyolefin will have a density of at least about 0.890 g/cm. In one particular embodiment, the polymeric blend may comprise about 50 percent to about 90 percent by weight of a narrow molecular weight distribution polyethylene and about 50 percent to about 10 percent by weight of a nonelastomeric polyolefin such as a linear low density polyethylene.

Laminates of elastomeric and non-elastomeric polyolefin blend materials

Shear-thinning ethylene/&#x3b1;-olefin and ethylene/&#x3b1;-olefin/diene monomer interpolymers that do not include a traditional branch-inducing monomer such as norbornadiene are prepared at an elevated temperature in an atmosphere that has little or no hydrogen using a constrained geometry complex catalyst and an activating cocatalyst.

Shear thinning ethylene/&#x3b1;-olefin interpolymers and their preparation

Olefinic interpolymer compositions comprising the olefinic interpolymer, residuals from a transition metal catalyst and boron containing activator package, and a charge dissipation modifier and methods for making them. The compositions have dissipation factors that are at least 50% less than the corresponding olefinic interpolymer compositions which have not been treated with charge dissipation modifiers. The compositions are useful in wire and cable applications.

Charge dissipation modifiers for olefinic interpolymer compositions

Disclosed are adhesives and processes for preparing the same, comprising at least one first homogeneous ethylene/&#x3b1;-olefin interpolymer, and optionally at least one tackifier, and optionally at least one plasticizer. The claimed adhesives are useful as adhesives such as are employed in various applications, such as in masking tape, clear office tape, labels, decals, bandages, decorative and protective sheets (such as shelf and drawer liners), floor tiles, sanitary napkin/incontinence device placement strips, sun control films, the joining of gaskets to automobile windows, packaging, bookbinding, construction of nonwoven articles, and insulation bonding.

Adhesives comprising olefin polymers

A new process of interpolymerizing ethylene interpolymer products having improved properties, such as increased onset of crystallization temperature, is disclosed. Preferably, the process comprises interpolymerizing a first homogeneous ethylene/alpha-olefin interpolymer and at least one second homogeneous ethylene/alpha-olefin interpolymer using at least two constrained geometry catalysts having different reactivities such that the first ethylene/alpha-olefin interpolymer has a narrow molecular weight distribution (NMWD) with a very high comonomer content and relatively high molecular weight and the second ethylene/alpha-olefin interpolymer has a NMWD with a low comonomer content and a molecular weight lower than that of the first interpolymer. The resultant first homogeneous interpolymer is combined with the resultant second homogeneous interpolymer in appropriate weight ratios resulting in the desired finished polymer structure. The first interpolymer and the second interpolymer can be polymerized in a single reactor or they can be polymerized in separate reactors operated in parallel or series.

Ethylene interpolymer polymerizations

Process for making a non-pourable ultra-low molecular weight ethylene polymer composition and blends thereof. Such polymer compositions tend to have longer lamella and a greater degree of crystalline organization than corresponding higher molecular weight materials at an equivalent density.

Process for making ultra-low molecular weight ethylene polymers and blends thereof

A nonwoven web made from a polymeric fiber blend comprising at least one elastomeric polyolefin and at least one nonelastomeric polyolefin useful as the elastic base sheet for a nonwoven laminate is disclosed. Preferably, the polymeric blend will comprise a nonelastomeric resin in the range of from about 10 to about 90 percent by weight, and an elastomeric resin of from about 90 to about 10 percent by weight. The elastomeric polyolefin will have a density of less than about 0.885 g/cm and the nonelastomeric polyolefin will have a density of at least about 0.890 g/cm . In one particular embodiment, the polymeric blend may comprise about 50 percent to about 90 percent by weight of a narrow molecular weight distribution polyethylene and about 50 percent to about 10 percent by weight of a nonelastomeric polyolefin such as a linear low density polyethylene.

Shear-thinning ethylene/&agr;-olefin and ethylene/&agr;-olefin/diene monomer interpolymers that do not include a traditional branch-inducing monomer such as norbornadiene are prepared at an elevated temperature in an atmosphere that has little or no hydrogen using a constrained geometry complex catalyst and an activating cocatalyst.

Shear thinning ethylene/&agr;-olefin interpolymers and their preparation

Ethylene-based polymer blends having an MWD of at least about 2 are made in a single reactor using a mixed constrained geometry catalyst (CGC) system. The process comprises the steps of contacting under polymerization conditions and in a single reaction vessel (i) ethylene, (ii) at least one C -C &agr;-olefin, (iii) optionally, at least one polyene, and (iv) a mixed CGC system.

Process for preparing in a single reactor polymer blends having a broad molecular weight distribution

A hot melt adhesive composition comprising a) from about 5 wt-% to about 50 wt-% of at least one homogeneous linear or substantially linear ethylene/alpha-olefin interpolymer characterized as having a density from 0.850 to 0.965 g/cm ; b) from about 1 wt-% to about 40 wt-% of at least one block copolymer; and c) from about 10 wt-% to about 75 wt-% of at least one tackifying resin wherein said adhesive does not fail cohesively.

Hot melt adhesive composition comprising homogeneous ethylene interpolymer and block copolymer

Ethylene, an &agr;-olefin and, optionally, a diene monomer are polymerized in a process comprising the step of contacting (1) ethylene, (2) at least one C -C aliphatic &agr;-olefin, (3) optionally, at least one C -C diene, (4) a catalyst comprising (a) a metallocene complex, and (b) an activator, and (5) a solvent. The process is conducted in either a single reactor or in multiple reactors, the latter configured either in series or parallel. Solvent is removed from the polymer stream in an anhydrous, first stage solvent recovery operation such that the solids concentration of the product stream is increased by at least 100 percent. Additional solvent is removed in an anhydrous, second stage solvent recovery operation from the product of the first stage solvent recovery operation such that the solids concentration of the product stream is in excess of 65 weight percent.

Metallocene-catalyzed process for the manufacture of EP and EPDM polymers

Growing community of inventors

Lake Jackson, TX, United States of America

Deepak R Parikh