Exxonmobil Chemical Patents Inc.

Mcneil-ppc, Inc.

Exxonmobil Technology and Engineering Company

Jennifer J Austin

James Norris Coffey

Jurgen J M Schroeyers

Jurgen J Schroeyers

Shawn W Mowry

Jean-Roch H Schauder

Ranjan Tripathy

Sunny Jacob

Shmuel Dabi

Galen Charles Richeson

Jan Kalfus

Eugene R Uhl

John F Poccia, Iii

Caol P Huff

Joseph M Delucia

Giriprasath Gururajan

Yann Devorest

Luis A Sotomayor

Galen C Richeson

Madelyn Bekker

Lauren P Bram

Alexandra K Valdez

Adam P Hamilton

Ronald G White

Paul Hamilton

Jurgen JM Schroeyers

The present invention is related to adhesive compositions comprising about 50 to about 80 wt % of a polymer blend of at least two different propylene-based polymers, wherein the polymer blend has a melt viscosity of about 100 to about 6,000 cP and adhesive compositions comprising about 30 to about 60 wt % of a polymer blend of at least two different propylene-based polymers, wherein the polymer blend has a melt viscosity of about 6,000 cP to about 60,000 cP. When subjected to Temperature Rising Elution Fractionation, the polymer blend exhibits a first fraction that is soluble at &#x2212;15&#xb0; C. in xylene, the first fraction having an isotactic (mm) triad tacticity of about 70 mol % to about 90 mol %; and a second fraction that is insoluble or less soluble than the first fraction at &#x2212;15&#xb0; C. in xylene, the second fraction having an isotactic (mm) triad tacticity of about 85 mol % to about 98 mol %.

High polymer load polyolefin adhesive compositions

The present invention is related to an adhesive composition comprising a 30-80 wt % polymer blend and 2 to about 20 wt % of an oil. The blend has a first and second propylene-based polymer, both different homopolymers of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin.

Propylene-based polymers and plasticizers for use in adhesive compositions

The present invention is related to an article comprising a substrate, having at least one propylene terpolymer comprising propylene derived units, one or more dienes, and an alpha-olefin content of less than about 35 wt % of the propylene terpolymer; and an adhesive composition, having about 20 to about 80 wt % of a polymer blend comprising a first propylene-based polymer, that is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin, and a second propylene-based polymer, that is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer; and wherein the adhesive composition is applied to the substrate at temperature of less than about 150&#xb0; C.

Polyolefin adhesive compositions for elastic applications

The present invention is related to adhesive composition, having a polymer blend comprising a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin, and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer; wherein the polymer blend has a melt viscosity, measured at 190&#xb0; C. and determined according to ASTM D-3236, of about 1,000 cP to about 5,000 cP; a propylene polymer; and wherein the adhesive composition is substantially free of a functionalized polyolefin, wherein the functionalized polyolefin is selected from at least one of a maleic anhydride-modified polypropylene and a maleic anhydride-modified polypropylene wax.

Adhesive compositions made from propylene-based polymers and crystalline C2/C3 homopolymer

The present invention is related to a polymer blend, having a melt viscosity at 190&#xb0; C. of 3,000 cP to 12,000 cP, and one or more tackifiers, having a softening point of 80&#xb0; C. to 145&#xb0; C., an aromaticity of 3 mol % to 11 mol % aromatic protons, and a Cloud Point of &#x2212;10&#xb0; C. to 15&#xb0; C. for use in an adhesive composition. The polymer blend includes a first propylene-based polymer and a different second propylene-based polymer, both selected from a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin.

Adhesive compositions for nonwoven applications

The invention relates to an heat-activated fabric comprising a polymer blend of 70 to 100 wt % of a polymer blend component and 0 to 30 wt % of a propylene polymer, wherein the polymer blend component comprises a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin, wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the polymer blend component has a MFR of greater than or equal to 20 g/10 min to less than 10,000 g/10 min; and wherein the propylene polymer has a MFR of greater than or equal to 20 g/10 min to less than 5,000 g/10 min.

Heat-activated fabrics made from blends containing propylene-based polymers

The invention relates to a fiber comprising a blend of 10-50 wt % of a polymer blend modifier and 50-90 wt % of a propylene-based elastomer; 5-50 wt % of a propylene-modifier and 50-95 wt % of a propylene-based elastomer; and 5-35 wt % of a polymer blend modifier and 65-95 wt % of a propylene-modifier. The polymer blend modifier has a first propylene-based polymer and a different second propylene-based polymer that is a propylene homopolymer or a copolymer of propylene and ethylene and a Cto Calpha-olefin. The propylene-modifier is a propylene homopolymer or a copolymer of propylene with 0.5-4 wt % ethylene or Cto Calpha-olefins. The propylene-based elastomer is propylene and 5-25 wt % of one or more Cto C-Calpha-olefins and has a triad tacticity greater than 90% and a heat of fusion less than 75 J/g.

Polymer compositions and nonwoven materials prepared therefrom

The present invention is related to an adhesive composition, wherein the adhesive composition comprises a polymer blend comprising a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin, and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a Cto Calpha-olefin; wherein the second propylene-based polymer is different than the first propylene-based polymer, and wherein the polymer blend has a melt viscosity, measured at 190&#xb0; C. and determined according to ASTM D-3236, of about 1,000 cP to about 10,000 cP; and one or more tackifiers.

Adhesive compositions made from propylene-based polymers for elastic attachments

The present invention is related to adhesive compositions comprising a polymer blend of at least two different propylene-based polymers and one or more tackifiers. The polymer blend has a melt viscosity of about 900 cP to about 19,000 cP. When subjected to Temperature Rising Elution Fractionation, the polymer blend exhibits a first fraction that is soluble at &#x2212;15&#xb0; C. in xylene, the first fraction having an isotactic (mm) triad tacticity of about 70 mol % to about 90 mol %; and a second fraction that is insoluble or less soluble than the first fraction at &#x2212;15&#xb0; C. in xylene, the second fraction having an isotactic (mm) triad tacticity of about 85 mol % to about 98 mol %. The tackifier has a softening point, as determined by ASTM E-28, of about 85 to about 135&#xb0; C. and an aromaticity of about 2 to about 12 mol % aromatic protons.

Tackified polyolefin adhesive compositions

Growing community of inventors

The Woodlands, TX, United States of America

Jennifer J Austin