The Dow Chemical Company

Dow Global Technolgoies LLC

Calvin P Esneault

Ricardo Fuentes, Jr

Gary K Lund

Rajen M Patel

Brian W Walther

Raymond Lynn Laakso, Jr

Thoi H Ho

Pak-Wing Steve Chum

Charles F Diehl

Stephen F Hahn

Larry Alan Meiske

Selim Bensason

Jodi M Mecca

Rexford Allison Maugans

Morris S Edmondson

Gary D Parsons

Jerry L Hahnfeld

Hong Peng

Robert J Donald

James E Pate, Iii

Leonie K Walsh

Laura M Phipps

Nathan A Malowinski

Timothy J Pope

Hoang Pham

Compositions comprising hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, pultruded articles, fibers, coated articles, injection molded articles and blow or rotational molded articles.

Compositions comprising hydrogenated block copolymers and end-use applications thereof

The present invention relates to a fiber produced form a composition comprising at least one hydrogenated block copolymer and, optionally, at least one other polymer selected from the group consisting of a reactive tailored liquid polyurethane, an elastomeric or sulfonated ethylene/vinyl aromatic interpolymer, an elastomeric ethylene/C -C &agr;-olefin interpolymer, an C -C &agr;-olefin/conjugated diene interpolymer, an elastic polypropylene polymer, an enhanced polypropylene polymer, an elastomeric thermoplastic polyurethane, an elastic copolyester, a partially hydrogenated block copolymer, an elastic polyamide, a hydroxyl functionalized polyether (or polyetheramine), a styrene/conjugated diene interpolymer, and an elastomeric metallocene-catalyzed synthetic polymer or a blend or formulated system thereof.

Hydrogenated block copolymers having elasticity and articles made therefrom

A thermoplastic elastomeric blend composition comprising: (A) from 99 to 1 weight percent of a styrenic block copolymer; and (B) from 1 to 99 weight percent of an interpolymer of .alpha.-olefin and (1) at least one aliphatic .alpha.-olefin and (2)at least one vinylidene aromatic monomer or (2) at least one hindered aliphatic vinylidene monomer or (3) a combination of at least one vinylidene aromatic monomer and at least one hindered aliphatic vinylidene monomer, and fabricated articles made from such composition.

Blends of elastomer block copolymer and aliphatic

A process is provided for metallating ethylene polymers which have polymerized therein a minor amount of nonconjugated diene. Metallation is accomplished with a blend of three metallating reagents: (a) an alkyllithium compound; (b) a potassium alkoxide; and (c) a chelating tertiary diamine. The metallated polymers so prepared may be reacted with one or more anionically polymerizable monomers to form graft polymers or with a reagent such as carbon dioxide to form a functionalized polymer. When the anionically polymerizable monomer has two or more polymerizable sites, the metallated polymer is reacted with a modifying compound such as alpha-methylstyrene before it is reacted with the monomer(s). Certain of the graft polymers behave as thermoplastic elastomers whereas others are thermoplastic. The blend of metallating reagents may be used with any polymer having partial or complete unsaturation.

Process for metallating nonconjugated diene-containing ethylene polymers

A process is provided for metallating crystalline ethylene polymers which have polymerized therein a minor amount of at least one nonconjugated diene and, optionally, a minor amount of at least one 1-olefin. Metallation is accomplished with an alkyllithium compound and at least one activating reagent after a slurry of the copolymer in a nonreactive, saturated, nonpolar hydrocarbon solvent is first heated to a temperature greater than 80.degree. Centigrade to provide the polymer with an expanded settling volume greater than its original settling volume. Metallation may be accomplished either at that temperature or at a lower temperature following cooling of the slurry. The activating reagents include potassium alkoxides, and chelating tertiary diamines. The metallated polymers so prepared may be reacted with (a) one or more anionically polymerizable monomers to form graft polymers or (b) a reagent such as carbon dioxide to form a functionalized polymer.

Process for metallating crystalline ethylene-nonconjugated diene

Olefins or mixtures thereof are polymerized in the presence of the product resulting from heating in an inert hydrocarbon diluent a mixture of (A) an organomagnesium material, (B) essentially anhydrous carbon dioxide, (C) a reducing halide source and (D) a transition metal compound.

Polymerization of olefins in presence of a catalyst prepared from

A catalyst for polymerizing olefins is the product resulting from mixing in an inert hydrocarbon diluent a mixture of (A) an organomagnesium material, (B) an organic hydroxyl-containing material, (C) a reducing halide source and (D) a transition metal compound.

Catalyst prepared from organomagnesium compound, organic

A catalyst for polymerizing olefins is the product resulting from heating in an inert hydrocarbon diluent a mixture of (A) an organomagnesium material, (B) essentially anhydrous carbon dioxide, (C) a reducing halide source and (D) a transition metal compound.

Catalyst prepared from organomagnesium compound, carbon dioxide

A catalyst for polymerizing olefins is the product resulting from a mixture of (A) an organomagnesium material, (B) essentially anhydrous carbon dioxide, (C) a reducing halide source and (D) the reaction product or complex resulting from admixing a transition metal compound and an organozinc compound.

Catalyst prepared from organomagnesium compound, carbon dioxide,

Olefins are polymerized in the presence of, as a catalyst therefor, the catalytic reaction product resulting from admixing

Process for polymerizing olefins in the presence of a catalyst prepared

Olefins are polymerized in the presence of (I) solid supported catalysts which are prepared by (A) reacting in the presence of a diluent such as n-hexane a mixture of (1) the reaction product of (a) an organomagnesium compound such as dibutyl magnesium and (b) a diol such as 1,8-octanediol and (2) a transition metal halide such as titanium tetrachloride and (B) recovering the solid precipitate such as by decanting and (C) washing the solid with a solvent such as n-hexane and (II) a suitable activating agent. The resultant polymers have a relatively broad molecular weight distribution.

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Calvin P Esneault