General Electric Company

John A Rock

Norman E Durfee, Jr

L Joseph Male

Fred F Holub

Robert Russell Gallucci

Daniel W Fox

Visvaldis Abolins

Harold F Giles, Jr

Clayton B Quinn

Willem F Borman

Robert O Johnson

Polymer blends contain a polyphenylene ether and a siloxane-polyetherimide copolymer. These blends exhibit good ductility, good injection moldability, very low flammability and high impact strengths.

Polyphenylene ether/siloxane polyetherimide copolymer

Polyphenylene ether- polyamide compositions having improved resistance to water absorption and swell are provided by incorporating therein a phenolic compound.

Polyetherimide-polyamide compositions

Flame resistant polymer blends contain a polyetherimide and an impact strength-enhancing amount of a siloxane-polyetherimide copolymer. These blends exhibit high impact strengths, good blow-moldability and injection moldability, amenability to thermoforming and very low flammability. The blends are particularly suited to the manufacture of aircraft cabin interior components.

Flame resistant polyetherimide resin blends

Flame resistant polymer blends contain a polyetherimide and an impact strength-enhancing amount of a siloxane-polyetherimide copolymer and a solvent resistance-enhancing amount of a polycarbonate. These blends exhibit excellent impact strengths, high heat distortion temperatures, good solvent resistance, and amenability to blow-molding, injection molding and thermoforming operations. The blends are particularly suited to the manufacture of aircraft cabin interior components.

The present invention relate to a ternary polymer blend containing in admixture (a) a polyetherimide; (b) a polyphenylene ether; and (c) a block copolymer of a vinyl aromatic compound and an alkene compound. These ternary blends exhibit high glass transition temperatures and excellent flexural properties.

Flame retardant ternary blends of polyetherimide, polyphenylene ether

Disclosed are blends of (a) a polyetherimide and (b) a liquid crystal polymer. The liquid crystal polymer is an aromatic copolyester which exhibits melt anisotropy. The blends exhibit a higher heat distortion temperature higher flexural modulus and specific gravity over the polyetherimide component alone and have a higher tensile strength than that associated with the liquid crystal polymer alone.

Polyetherimide-liquid crystal polymer blends

The present invention relates to ternary polymer blends containing (a) a polyetherimide, (b) a rubber modified vinyl aromatic polymer, and (c) a polyphthalate carbonate. The blends have excellent high temperature properties, improved impact resistance values and have excellent flexural values.

Ternary polymer blends containing a polyetherimide, a polyphthalate

A polymer blend containing a polycarbonate and a siloxane-polyetherimide copolymer. The blends of the invention have improved impact strength, particularly thick section impact strength, over the unmodified polycarbonates. In addition the blends have good physical properties, relatively low flammability and are resistant to environmental stress cracking and crazing.

Polycarbonate-siloxane polyetherimide copolymer blends

Nonmetallic bearing compositions contain a polyetherimide resin and, as a modifier, a fluoropolymer, such as polytetrafluoroethylene. The present compositions can be fabricated into a variety of shapes by injection molding, and have excellent wear resistance, load-bearing capabilities, and low coefficients of friction without the use of external lubrication.

Polyetherimide bearing compositions

Ternary polymer blends contain (a) a polyetherimide, (b) a polycarbonate and (c) a minor amount of an acrylic rubber interpolymer composite. These blends are characterized by high impact strengths and advantageous processing temperatures.

Impact modified polyetherimide-polycarbonate blends

Polyamide-polyetherimide blends containing from 5% to 39% by weight of polyetherimide have been found to have improved mold shrinkage and water absorption characteristics.

Polyetherimide-polyamide blends

Flame retardant polyetherimide/polycarbonate blend are prepared by incorporating therein a flame retarding modifier therefor selected from the group consisting of brominated polystyrenes and a mixture thereof with an acrylic rubber composite interpolymer.

Flame retardant polyetherimide-polycarbonate blends

A shaped article of an aromatic carbonate polymer and a polyester derived from cyclohexanedimethanol and a mixture of iso- and terephthalic acids.

Shaped article obtained from a carbonate-polyester composition

A thermoplastic molding composition comprising a chlorine containing bisphenol polycarbonate and a polyester derived from a cyclohexanedimethanol.

Thermoplastic molding composition

The melt elasticity of high molecular weight linear polyesters is enhanced by adding a minor proportion of an organic polyepoxide, and heating the resulting mixture. The products of the process are suitable for injection or extrusion blow molding and blown film extrusion.

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Becket, MA, United States of America

John A Rock