Akzo Nobel N.v.

Akzo N.v.

Icl-ip America Inc.

University of Massachusetts

Supresta LLC

Supresta U.S. LLC

Sophia Dashevsky

Ki-Soo Kim

Stanley W Palmaka

Danielle Angrand Bright

Sergei Vladimirovich Levchik

Andrew M Piotrowski

Johst H Burk

Eric W Burkhardt

Jian-Lin Liu

Robert W Lenz

John Tomko

Alan M Aaronson

Edward D Weil

Qiang Yao

Simon W Kantor

Johannes A Juijn

Mark Buczek

Claude B Peterson

Thomas F McCarthy

Leonardus A Busscher

Anantha N Desikan

Roy L Johnston

Antoon Ten Kate

Yingzhong Guo

A monohydroxy cyclic phosphonate substantially free of polyhydroxy phosphonate is employed as a reactive flame retardant in flexible polyurethane.

Monohydroxy cyclic phosphonate substantially free of polyhydroxy phosphonate, process for making same and flame retardant flexible polyurethane foam obtained therefrom

A flexible polyurethane foam-forming composition and the flexible polyurethane foam obtained therefrom contain, as flame-retardant additive, a halogen-free phosphonate compound which is substantially unreactive for isocyanate, contains at least about 5 weight percent phosphorus, has an acid value of about 2 mg KOH/g or less, a volatility as measured by thermogravimetric analysis not exceeding a 5.0 percent weight loss at a temperature of about 150&#xb0; C., and a weight average molecular weight of from about 200 to about 2000.

Flame-retardant flexible polyurethane foam

A crude phosphate ester product can be purified by first washing it with chelating agent composition (such as a dilute acidic solution) and then, preferably, water, drying the resulting product, and then treating the resulting product with an acid scavenger, as exemplified by an epoxy-containing compound, such as 3,4-epoxy cyclohexyl methyl-3,4-epoxy cyclohexyl carboxylate.

Process for purification of phosphate esters

Epoxy resins that are suitable for forming epoxy laminates that meet a UL-94 rating of V-0 comprise a hydroxy-terminated oligomeric phosphonate comprising the repeating structure &#x2014;OP(&#x2550;O)(R)OArylene-, where R is alkyl, as a flame retardant.

Oligomeric, hydroxy-terminated phosphonates

Epoxy-stabilized polyphosphate compositions

A polymer composition, which is useful as a surfactant, formed by the reaction of an alkylene oxide (such as ethylene oxide), carbon dioxide, and a monocarboxylic acid chain terminator, such as one containing a fatty alkyl group.

Monocarboxylic acid-terminated polymers of carbon dioxide and an

The thermostability of an aromatic polyphosphate composition an be improved by the addition of an effective amount of a hydroxy-terminated aromatic polyphosphate composition for such.

Thermostability enhancement of polyphosphate flame retardants

The disclosure teaches a blend of a predominant amount of a polyphosphate flame retardant and an effective amount of a liquid crystalline additive for viscosity reduction and compatibilization when blended with a thermoplastic polymer, as compared to use of just the polyphosphate flame retardant alone. The polyphosphate can comprise resorcinol bis(diphenyl phosphate) and/or its higher oligomers. The liquid can be a liquid crystalline segmented block copolymer or a liquid crystalline oligomer.

Blend of polyphosphate flame retardant and liquid crystalline additive

A single phase, compatiblized blend comprising a polycarbonate resin, a polyester resin, and no more than about 5%, by weight of the combined weight of polycarbonate and polyester, of a liquid crystalline additive as a compatibilizer.

Compatibilized blend of polycarbonate, polyester and liquid crystalline

A lubricant composition for an internal combustion engine contains a lubricant basestock and an effective amount for antiwear properties of an oligomer containing at least one mesogenic segment and at least one flexible segment. The oligomer can have a centrally disposed flexible segment, e.g., derived from a polyalkylene glycol such as polypropylene glycol, with mesogenic segments as end caps or it can contain alternating flexible and mesogenic segments, e.g., comprising a repeat unit comprising aromatic ester groups and at least one linear polyalkylene spacer. The oligomer preferably has a molecular weight of from about 1,000 to about 4,000 and is present at from about 0.1% to about 3%, by weight of the basestock.

Lubricant containing oligomer with flexible and mesogenic segments

The reaction of methyl p-hydroxybenzoate and a .alpha.,.omega.-alkanediol, in the presence of a transesterification catalyst, such as a metal alkoxide and/or metal acetate, can be used to synthesize an .alpha.,.omega.-bis(p-hydroxybenzoyloxy)alkane monomer.

Synthesis of .alpha., .omega.-bis(p-hydroxybenzoyloxy) alkane

Blends can be formed which comprise a flexible coil polymer substrate, e.g., of a poly(alkylene terephthalate), and a thermotropic, essentially liquid crystalline oligomer which comprises aromatic units and at least one linear polyalkylene spacer. These blends can be used to form fibers or molded articles.

Blend of flexible coil polymer and themotropic liquid crystalline

Blends of a poly(ethylene terephthalate) matrix and a thermotropic liquid crystalline segmented block copolymer comprising rod (e.g., aromatic ester mesogen units containing flexible alkylene spacers) and flexible coil polymer blocks of poly(butylene terephthalate) can be used as molding compositions or in the formation of fibers and films.

Blend of polyethylene terephthalate matrix and thermotropic liquid

Thermotropic liquid crystalline poly(ester-amide) compositions are disclosed which comprise a bis(4-carbonyl phenylene) terephthalate unit and a unit derived from an N-substituted hydrocarbylenediamine (e.g., one derived from an N,N-dialkylalkylene).

Thermotropic liquid crystalline poly(ester-amides)

Preblends with improved interfacial adhesion, capable of later melt blending, can be formed by heating, above their glass transition temperatures but below their melting temperatures, a flexible coil polymer, to serve as the matrix, and a lesser amount of a block copolymer of a thermotropic liquid crystal polymer and a flexible coil polymer.

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Fair Lawn, NJ, United States of America

Sophia Dashevsky