Akzo Nobel N.v.

Akzo N.v.

Stauffer Chemical Company

World Properties, Inc.

University of Massachusetts

Ki-Soo Kim

Sophia Dashevsky

Stanley W Palmaka

Scott S Simpson

Johst H Burk

Jian-Lin Liu

Jason Hoffman

Jagadish C Goswami

Siegfried Altscher

Robert W Lenz

Michael E St Lawrence

Arthur J Yu

Alan M Aaronson

Anthony L DiSalvo

Simon W Kantor

Johannes A Juijn

Claude B Peterson

Eva J Herscovici

Saroj Kumar Roy

Leonardus A Busscher

Thomas F McCarthy

Roy L Johnston

Articles are disclosed, comprising a polymer foam layer having a first surface and an opposite second surface; a plurality of cells between the first surface and the opposite second surface of the polymer foam layer, wherein the thickness of the polymer foam layer between the first surface and the opposite second surface is 1.0 to 1.5 times the average height of the plurality of cells; and a plurality of electrically conductive particles aligned into a plurality of columns that essentially continuously span the foam between the first surface and the opposite second surface of the polymer foam layer. The foams are useful as gaskets for electromagnetic shielding, grounding pads, battery contact conductive spring elements, and the like.

Conductive polymer foams, method of manufacture, and uses thereof

Articles are disclosed, comprising a polymer foam layer having a first surface and an opposite second surface; a plurality of cells between the first surface and the opposite second surface of the polymer foam layer, wherein the thickness of the polymer foam layer between the first surface and the opposite second surface is 1.0 to 1.5 times the average height of the plurality of cells; and a plurality of magnetic, electrically conductive particles aligned into a plurality of mutually isolated chains that essentially continuously span the foam between the first surface and the opposite second surface of the polymer foam layer. The foams are useful as gaskets for electromagnetic shielding, grounding pads, battery contact conductive spring elements, and the like.

A process to produce a liquid crystalline polymer film comprises electrostatically depositing a fine powder of liquid crystalline polymer resin onto a carrier and fusing the deposited fine powder to form a liquid crystalline polymer film that is isotropic in the x-y plane. The electrostatic deposition of the resin particles results in a substantially random molecular alignment of the liquid crystalline polymer. The carrier can comprise an all metal foil, a metal foil laminate, a polymer film material, or a release material.

Electrostatic deposition of high temperature, high performance liquid crystalline polymers

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 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)

Polyketone polymers can be stabilized and rendered more processable by the inclusion of a liquid crystalline diglycidyl compound, e.g., the diglycidyl ether of a 1,4-bis(p-hydroxybenzoyloxy) cyclohydrocarbon.

Liquid crystalline epoxy resin as additive for polyketone polymers

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.

Forming preblend of flexible coil polymer and block copolymer of

A single reactor process for formation of block copolymers comprising aromatic ester mesogenic units containing flexible alkane spacers and polyester flexible coil units in the main chain thereof which comprises reacting an .alpha.,.omega.-bis(hydroxybenzoyloxy) alkane monomer with an aromatic acid chloride in the presence of a functionalized flexible coil oligomer under temperature conditions in which an acid chloride-terminated bis(hydroxyalkyl terephthalate) oligomer was first formed at a first, lower temperature and the block copolymer was then formed at a second, higher temperature by reacting this oligomer with the functionalized flexible coil oligomer.

Synthesis of block liquid crystal copolymer

A single reactor process for formation of block copolymers comprising aromatic ester mesogenic units containing flexible alkane spacers and polyester flexible coil units in the main chain thereof which comprises:

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Katonah, NY, United States of America

Ki-Soo Kim