Dow Global Technolgoies LLC

The Dow Chemical Company

Ddp Specialty Electronic Materials Us, LLC

Bruce A King

Mehmet Demirors

Daniel J Murray

William Gerald Stobby

John Wesley Hull, Jr

Ted A Morgan

Bruce P Thill

David Bruce Gorman

Anteneh Z Worku

Inken Beulich

David R Wilson

William Jack Kruper, Jr

Ravi B Shankar

H Craig Silvis

Ray E Drumright

Stephen F Hahn

Chun S Wang

William J Kruper

Erin B Vogel

Stéphane Costeux

Shari Kram

Ronald B Leng

Michael O Myers

Mark William Beach

Kshitish A Patankar

Sheila M Tinetti

Hyun K Jeon

Michelle L Hudack

Mercedes R Galobardes

John R Schroeder

Vinod K Berry

Terry L Gehrman

Ing Feng Hu

Mark W Beach

Daniel Joseph Murray

Jr John Wesley Hull

Ted Andrew Morgan

Terry Lee Gerhman

A polymeric foam article with a polymer matrix defining multiple cells therein has a polymer component with a first polymer that is a polyhedral oligomeric silsesquioxane grafted polymer that has a weight-average molecular weight of two kilograms per mole or higher and 200 kilograms per mole or lower.

Polyhedral oligomeric silsesquioxane grafted polymer in polymeric foam

Butadiene polymers are brominated using a quaternary ammonium or quaternary phosphonium tribromide as the brominating agent. The bromination is performed in a solvent mixture than contains at least one polyhalogenated alkane and at least one monohalogenated alkane. The process proceeds easily under mild conditions and allows high conversions to be achieved easily.

Process for brominating butadiene polymers using mixed solvents

Brominated and epoxidized organic compounds are useful flame retardants for polymers such as polystyrene. The organic compounds contain both bromine and oxirane groups, and have molecular weights of at least 1500. The brominated and epoxidized organic compounds can be prepared by sequentially brominating and epoxiding (in either order) a starting compound that contains multiple non-conjugated carbon-carbon double bonds.

Brominated and epoxidized flame retardants

Certain brominated polymers compounds are effective FR additives for combustible organic polymers. These FR additives include: i) a copolymer having styrene and 2,3-dibromopropylmaleimide repeating units; ii) a brominated polyester having aliphatically bound bromine; iii) an allyl ether of a ring-brominated novolac resin; iv) a 3-bromo-2-hydroxypropyl ether of a novolac resin; v) a 2,3-dibromopropyl ether of a cresol novolac resin; and vi) a brominated ROMP polymer or copolymer.

Brominated polymers as FR additives and polymer systems containing same

Butadiene copolymers are brominated using certain quaternary ammonium tribromides as the brominating agent. The bromination process proceeds easily under mild conditions, and produces a brominated product that has excellent thermal stability.

Process for brominating butadieneninyl aromatic copolymers

Butadiene copolymers are brominated in solution using bromine as the brominating agent. The bromination is conducted in the presence of an excess of an aliphatic alcohol, relative to the amount of bromine that is used. The bromination proceeds rapidly at mild conditions, and is selective in that only aliphatic carbon-carbon double bonds are brominated, and unwanted bromination at tertiary carbon atoms is largely or completely avoided. The resulting brominated polymers are characterized in having very good thermal stability.

Process for brominating butadiene/vinyl aromatic copolymers

Phosphorus-sulfur compounds have flame retardant activity in organic polymer systems. The phosphorus-sulfur compounds can be represented by the structure: wherein X is oxygen or sulfur, T is a covalent bond, oxygen, sulfur or nitrogen, provided that at least one of X and T is sulfur, each X' is independently oxygen or sulfur, each m is independently zero or 1 when X&#x2032; is oxygen and zero, 1 or 2 when X&#x2032; is sulfur, n is at least 1 and preferably at least 2, each R is independently an unsubstituted or inertly substituted hydrocarbyl group or the R groups together form an unsubstituted or inertly substituted divalent organic group and A is an organic linking group.

Phosphorus-sulfur FR additives and polymer systems containing same

A thermally stable brominated butadiene copolymer, such as brominated styrene/butadiene block copolymer, brominated random styrene/butadiene copolymer or brominated styrene/butadiene graft copolymer, preparation of the brominated butadiene copolymers, use of the brominated butadiene copolymers as a flame retardant additive and polymeric compositions, both foamed and non-foamed, that incorporate a flame-retarding amount of brominated butadiene copolymer.

Brominated butadiene/vinyl aromatic copolymers, blends of such copolymers with a vinyl aromatic polymer and polymeric foams formed from such blends

Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymers are prepared by a novel process, and are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymer

An improved resinous blend having good impact properties and solvent resistance comprising an aromatic carbonate polymer, a polyacetal and a thermoplastic polyurethane.

Blends of carbonate polymer polyacetal and compatibilizer

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Midland, MI, United States of America

Bruce A King