Dow Global Technolgoies LLC

Applied Materials, Inc.

University of Minnesota

Rohm and Haas Company

Jeffrey C Munro

Kim Louis Walton

Srinivas D Nemani

Jeffrey Morris Cogen

Edmund M Carnahan

Gary Robert Marchand

Colin Li Pi Shan

Morgan Mark Hughes

Marc Andrew Hillmyer

Lixin Sun

Paul J Brigandi

Marlon E Menezes

Henry Martinez

Abhijit Basu Mallick

Haiyang Yu

Yushan Hu

Raymond Lynn Laakso, Jr

Kaoru Aou

Endre Szuromi

Xiaolin C Chen

DongQing Li

Hong Yang

Lisa S Madenjian

Dmitry Lubomirsky

Ellie Y Yieh

Bharat Indu Chaudhary

Wei Zhang

Christopher Dennis Bencher

Zheng Yuan

Peter N Nickias

Young Seen Lee

Pradeep Jain

Philip P Fontaine

Ralph Craig Even

Liang Chen

Vijay Parihar

Yi Zheng

Scott T Matteucci

Leonardo C Lopez

Carlos Alfonso Cruz

David M Pearson

Tao Han

Colin LiPiShan

Xiaosong Wu

Ashish Batra

Laura Bauerle Weaver

Brad C Bailey

Manish Talreja

Michael S Paquette

Matthew D Christianson

Santosh S Bawiskar

Rogelio Gamboa

Carl N Iverson

Alec Y Wang

Andrew J Young

Mary Ann Jones

Robert Thomas Johnston

Juan C Tuberquia

Jose Manu Rego

Shawn D Feist

Linlin Wang

Robert Scott Moglia

Kyle G Kummer

Hang Wu

Hien Q Do

Johnathan E Delorbe

Jihean Lee

Sherrika D Daniel

Dana R Breed

Susan R Gill

James Hemphill

Megan Matta

Justin M Virgill

Robert F Wendel

Edward E Lafleur

Jose Rego

Robert Johnston

Dana Breed

The present disclosure relates to unsaturated polyolefins and processes for preparing the same. The present disclosure further relates to curable formulations comprising the unsaturated polyolefins that show improved crosslinking.

Curable compositions comprising unsaturated polyolefins

A crosslinkable polyolefin composition comprising an ethylene/alpha-olefin copolymer elastomer having a melt index from 0.6 to 6.2 grams per 10 minutes, a crosslinking effective amount of an alkenyl-functional monocyclic organosiloxane, and from 0.29 to 0.44 wt % of an organic peroxide; products made therefrom; methods of making and using same; and articles containing same.

Polyolefin composition

Provided is a method of making a polymeric composition comprising

Process for preparing crosslinked polyolefin particles

The present disclosure relates to a catalyst system for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first olefin polymerization procatalyst, (B) a second olefin polymerization procatalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by procatalyst (A) under equivalent polymerization conditions, (C) an activator, and (D) a chain shuttling agent.

Catalyst system for multi-block copolymer formation

Semi-crystalline, thermoplastic polyolefin block copolymers comprising: (A) A first polyolefin A block comprising isotactic poly(1-butene) (iPB); (B) A polyolefin B block comprising an ethylene and/or alpha-olefin/1-butene copolymer or terpolymer; and (C) A second polyolefin A block comprising isotactic poly(1-butene) (iPB); the A and B blocks bonded to one another to form a block copolymer in which the first and second polyolefin A blocks are joined to and separated by the polyolefin B block. In one embodiment the polyolefin block copolymer is a BAB block copolymer.

Semi-crystalline thermoplastic block copolymers

A composition comprising the following: A) coated polymer particles, and wherein the polymer particles are formed from a first composition comprising an ethylene-based polymer that comprises the following properties: a density from 0.854 to 0.860 g/cc, and a melt index (I2) from 4.0 to 15.0 g/10 min; and wherein the polymer particles comprise a coating on at least a portion of the total surface of the polymer particles, and wherein the coating is formed from a powder composition comprising at least one inorganic powder, and at least one organic powder selected from a metal stearate and/or a polymer powder, and wherein the weight ratio of the total amount of the inorganic powder to the total amount of the organic powder is from 3.0 to 50.0; B) optionally, a propylene-based polymer.

Compositions containing coated polymer particles and TPO compositions formed from the same

Embodiments of the present disclosure are directed to multimodal elastomers produced by olefin polymerization with a mixed catalyst system, specifically, a constrained geometry catalyst and a biphenyl phenol catalyst. The multimodal elastomers may be incorporated as impact modifiers in thermoplastic olefins.

Mixed catalyst systems for producing multimodal elastomers

A formulation of a poly(propylene-co-ethylene) elastomer copolymer and a poly(ethylene-co-1-octene) block copolymer; a method of making the formulation; a manufactured article comprising or made from the formulation; and a method of using the manufactured article.

Formulation of elastomer copolymer and block copolymer

A composition comprising (A) from 30 wt % to 70 wt % of a propylene component including at least one propylene based polymer having a propylene content of at least 70.0 wt %, based on the total weight of the propylene based polymer, and a melt flow rate from 1.0 g/10 min to 100.0 g/10 min (ASTM D-1238 at 230&#xb0; C., 2.16 kg); (B) from 1 wt % to 20 wt % of an ethylene component including at least one ethylene based polymer having an ethylene content of at least 85.0 wt %, based on the total weight of the ethylene based polymer, and a melt index from 0.1 g/10 min to 50.0 g/10 min (ASTM D-1238 at 190&#xb0; C., 2.16 kg); (C) from 1 wt % to 40 wt % of an olefin block copolymer; and at least one of (D) from 1 wt % to 40 wt % of a polyolefin elastomer and (E) from 1 wt % to 30 wt % of a filler.

Thermoplastic polyolefin blends having improved low temperature impact performance

A process to produce a polyolefin reactive telechelic pre-polymer comprising reacting alkyl-cis-cyclooctene, and optionally cis-cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions to form a dicarbamate telechelic unsaturated polyolefin pre-polymer is provided.

Process to produce a polyolefin reactive telechelic pre-polymer

A painted article includes a primer layer between a substrate and a paint layer, of which the substrate is the product of a substrate forming composition including an olefin block copolymer and a polypropylene polymer having a density from 0.89 g/cmand 0.92 g/cm. The substrate is free of (1) phthalate-based plasticizer, (2) halogen-containing polymer, and (3) leachable, small polymeric units derived from styrene monomer.

Painted polyolefin articles

Embodiments relate to a high melt flow thermoplastic polyolefin composition and of a method of preparing a high melt flow thermoplastic polyolefin composition, in which the composition includes from 5 wt % to 45 wt % of a modifier including a blend of from 5 wt % to 40 wt % of a block composite and from 60 wt % to 95 wt % of a polyolefin copolymer, based on a total weight of the modifier, and from 30 wt % to 95 wt % of a polypropylene polymer base that has a melt flow rate of at least 40 g/10 min. The high melt flow thermoplastic polyolefin composition has a blended melt flow rate of at least 25 g/10 min and an MFR ratio is less than 2.0, the MFR ratio being a ratio of the melt flow rate of the polypropylene polymer base to the blended melt flow rate of the high melt flow thermoplastic polyolefin composition.

High melt flow thermoplastic polyolefins with modifier

A process to produce an ionomer comprising reacting alkyl-cis-cyclooctene and cis-cyclooctene in a mole ratio from 1:0 to 0:1, in the presence of a difunctional chain transfer agent under ring opening metathesis polymerization conditions to form an unsaturated polyolefin reactive telechelic pre-polymer; hydrogenating the unsaturated polyolefin reactive telechelic pre-polymer to produce a hydrogenated polyolefin reactive telechelic pre-polymer; reacting the hydrogenated polyolefin reactive telechelic pre-polymer with at least one compound according to the formula aM+b(R), wherein M is a metal, x is a charge of M, R is an alkyl, aryl, oxide, or fatty acid, y is a charge of R, a and b are integers of at least 1, and ax+by=0, to form an ionomer is provided. Further provided are ionomers produced thereby.

Process to produce polyolefin ionomers and ionomers produced thereby

Growing community of inventors

Bellaire, TX, United States of America

Jeffrey C Munro