Sabic Innovative Plastics IP B.v.

General Electric Company

General Electric Corporation Gmbh

Peter Hendrikus Vollenberg

Shreyas Chakravarti

Parminder Agarwal

Kenneth F Miller

Dhaval Shah

Safwat Ebeid Tadros

Eugene Pauling Boden

Brian Lee Lawrence

Jan Henk Kamps

Edward Kung

John Brian McDermott

Michael Teruki Takemori

Hongtao Shi

Steven James Montgomery

Rodney Fonseca

Huiping Zhang

Lina Prada

Robert A Fisher

Songping Liao

Jon Walter Thompson

Rodney W Fonseca

Charles Chambers

The present invention provides methods for controlling the optical properties of a light transmissive article. The method includes identifying a target window in an Abbe diagram comprising reference polymeric materials. The method further includes selecting a first polymeric material from the reference polymeric materials and compounding the first polymeric material with a stable UV chromophore to provide a first polymer composition. The method further includes transforming the first polymer composition to provide the light transmissive article, wherein the light transmissive article has an Abbe number and a refractive index which falls within the target window. Light transmissive articles prepared using the above methods are also provided.

Light transmissive articles and methods thereof

A composition comprising from 10 to 90 weight percent of a copolyetherester elastomer comprising: a modified, random polybutylene terephthalate copolymer block that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate, polyethylene terephthalate copolymers, and combinations thereof; and that contains at least one residue derived from the polyethylene terephthalate component; and a polyalkylene oxide copolymer block that is derived from the polyethylene terephthalate component and a polyalkylene oxide glycol, and that contains polyalkylene oxide and at least one residue derived from the polyethylene terephthalate component; from 10 to 90 weight percent of a polycarbonate; and from 0 to 60 weight percent of a polyester.

Elastomer blends containing polycarbonates and copolyetheresters derived from polyethylene terephthalate, method of manufacture, and articles therefrom

A composition, comprising a blend of 10 to 45 weight percent of a polyester selected from the group consisting of poly(ethylene terephthalate), poly(butylene terephthalate), poly(1,4-cyclohexyldimethylene cyclohexyl dicarboxylate), or a combination comprising at least one of the foregoing; and 55 to 90 weight percent of a poly(ester-ether)copolymer, each based on the total weight of the polyester and the poly(ester-ether)copolymer; wherein the poly(ester-ether)copolymer comprises units derived from terephthalic or a chemical equivalent thereof, units derived from butane diol or a chemical equivalent thereof, and 25 to 65 weight percent of units derived from poly(oxytetramethylene)glycol or a chemical equivalent thereof, based on the weight of the copolymer; wherein the composition retains at least 50% of at least one of tensile strength, modulus, stress at maximum strain, or the elongation at break is larger than 150% after being exposed to a temperature of 140&#xb0; C. for 70 hours, as measured by ASTM D-638.

Polyester blends, methods of making, and articles formed therefrom

A composition comprising a polysiloxane polycarbonate block copolymer; a cycloaliphatic polyester; and a polycarbonate that is different from the polycarbonate block copolymer, having a weight average molecular weight of less than about 20,000 Daltons. The compositions have high flow at low temperatures and good impact properties. The compositions are useful for the manufacture of components for handheld electronic devises such as cellular telephones.

Polyester-polycarbonate compositions, methods of manufacture, and methods of use

Elastomer blends of polyesters and copolyetheresters derived from polyethylene terephthalate, method of manufacture, and articles therefrom

A method for manufacturing a film or sheet comprises deforming a polymeric alloy at a temperature effective to impart to the deformed alloy a birefringence retardation of greater than or equal to about 750 nanometers. A method eliminating comets and veins in an optical film or sheet comprises annealing the film or sheet to a temperature greater than the lowest glass transition temperature of the polymeric resins contained in the alloy. A composition comprises a first polymeric resin in an amount of about 1 to about 99 wt %; and a second polymeric resin in an amount of about 1 to about 99 wt %, wherein the polymeric resins are blended with a deforming force effective to produce a polymeric alloy having a birefringence retardation of greater than or equal to about 750 nanometers.

Polymeric blends for optical devices and method of manufacture thereof

A method for manufacturing a film or sheet comprises deforming a polymeric alloy at a temperature effective to impart to the deformed alloy a birefringence retardation of greater than or equal to about 350 nanometers. A method of substantially eliminating comets and veins in an optical film or sheet comprises annealing the film or sheet comprising a polymeric alloy to a temperature proximate to a glass transition temperature of a polymeric resin contained in the alloy. A composition comprises a first polymeric resin in an amount of about 1 to about 99 wt %; and a second polymeric resin in an amount of about 1 to about 99 wt %, wherein the polymeric resins are treated with a deforming force or with an energy effective to produce a polymeric alloy having a birefringence retardation of greater than or equal to about 350 nanometers or with a birefringence retardation of less than or equal to about 150 nanometers.

A resin composition with laser marking properties comprises a polyester thermoplastic resin, a sufficient amount of channel black carbon pigment for forming a dark background coloration wherein said channel black carbon pigment decomposes in laser struck areas whereby light colored markings are obtained on the dark background.

Composition for laser marking

A reinforced polyester molding composition which, based on the weight of the total composition, comprises a polyester resin and glass fibers, wherein said glass fibers have a bimodal cross sectional area wherein one fiber type is selected to improve impact strength and the other fiber type is selected to improve warpage.

Glass filled polyester molding composition

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Evansville, IN, United States of America

Peter Hendrikus Vollenberg