Sabic Global Technologies B.v.

General Electric Company

Sabic Innovative Plastics IP B.v.

Jos Arie Van Den Bogerd

Johannes De Brouwer

Paulus Johannes Maria Eijsbouts

Hatem Abdallah Belfadhel

Rein Mollerus Faber

Josephus Hubertus Cornelius Maria Dekkers

Thomas L Evans

Christopher Luke Hein

Christianus J J Maas

Peter Anthony DiMattia

Katherine Campbell Glasgow

Adam Zerda

Gautam Chatterjee

Dibakar Dhara

Christianus Johannes Jacobus Maas

Jan-Willem Goedmakers

Estelle Cheret

Antoinette Van Bennekom

Eelco Van Hamersveld

Jan Willem Goedmakers

Reimor Mollerus Faber

Marinus Emmanuel Johannes Dekkers

In some embodiments, a method of making a polycarbonate composition comprises: polymerizing by an interfacial polymerization, reactants comprising a starting material comprising a bisphenol-A to form a bisphenol-A polycarbonate, wherein the bisphenol-A has a purity of greater than or equal to 99.65 wt % and a sulfur content of less than or equal to 2 ppm. The polycarbonate composition has a free hydroxyl content of less than or equal to 150 ppm, and wherein a molded article of the polycarbonate composition has transmission level greater than or equal to 90.0% at 2.5 mm thickness as measured by ASTM D1003-00 and a yellow index (YI) less than or equal to 1.5 as measured by ASTM D1925.

Polycarbonate compositions having enhanced optical properties, methods of making and articles comprising the polycarbonate compositions

In some embodiments, a composition includes: a conversion material and a bisphenol-A polycarbonate; wherein a molded article of the bisphenol-A polycarbonate has a transmission level of greater than or equal to 90.0% at a thickness of 2.5 mm as measured by ASTM D1003-00; and wherein the molded article comprises an increase in the yellow index of less than 2 during 2,000 hours of heat aging at 130&#xb0; C.; and wherein the conversion material comprises a yellow conversion material, a green conversion material, a red conversion material, or a combination comprising at least one of the foregoing.

Polycarbonate compositions containing conversion material chemistry and having enhanced optical properties, methods of making and articles comprising the same

In some embodiments, a composition comprises a bisphenol-A polycarbonate, wherein a molded article of the composition has transmission level greater than or equal to 90.0% at 2.5 mm thickness as measured by ASTM D1003-00 and a yellow index (YI) less than or equal to 1.5 as measured by ASTM D1925.

In some embodiments, a composition comprises a bisphenol-A polycarbonate, wherein a molded article of the bisphenol-A polycarbonate has transmission level greater than or equal to 90.0% at 2.5 mm thickness as measured by ASTM D1003-00 and a yellow index (YI) less than or equal to 1.5 as measured by ASTM D1925. In some embodiments, light emitting device comprises: a lighting element located in a housing. The housing is formed from a plastic composition comprising: the polycarbonate composition and a conversion material. After the conversion material has been exposed to an excitation source, the conversion material has a luminescence lifetime of less than 10seconds when the excitation source is removed.

A composition is disclosed, comprising a polycarbonate resin, an inorganic infrared shielding additive, and carbon black, wherein an article prepared from the composition has the inorganic infrared shielding additive present at about 0.01 to about 1.0 grams per square meter, and carbon black present at about 0.001 to about 2.0 grams per square meter. The article prepared from the composition meets at least one scale requirement for European Norm EN 169 and/or EN 171, and is useful for preparing infrared shielding protective eyewear with low haze.

Polycarbonate compositions having infrared absorbance, method of manufacture, and articles prepared therefrom

A method comprising treating an article with steam, wherein the article comprises a composition comprising an amount of a polysiloxane-polycarbonate copolymer effective to provide thermal and hydrolytic stability to the article for at least 15 cycles, wherein each cycle comprises 20 minutes of contact with steam at 100&#xb0; C., at atmospheric pressure. The articles are of utility in a wide variety of applications such as food service and medical applications.

Methods of sterilizing polycarbonate articles and methods of manufacture

Disclosed herein is multilayered sheet comprising a core layer comprising a thermoplastic polymer and an IR absorbing additive; wherein the IR absorbing additive is a metal oxide; and a first cap layer comprising a thermoplastic polymer and an electromagnetic radiation absorbing additive; wherein a surface of the first cap layer is disposed upon and in intimate contact with a surface of the core layer. Disclosed herein too is a method for manufacturing a multilayered sheet comprising melt blending a composition comprising a thermoplastic polymer and an IR absorbing additive to produce a core layer; melt blending a composition comprising a thermoplastic polymer and an ultraviolet radiation absorber to produce a first cap layer; combining the core layer with the first cap layer in such a manner that the cap layer is disposed upon and in intimate contact with a surface of the core layer.

Multilayered articles and method of manufacture thereof

Disclosed herein is a multilayered sheet comprising a core layer comprising a thermoplastic polymer and an IR absorbing additive; a first cap layer comprising a thermoplastic polymer and an electromagnetic radiation absorbing additive; wherein a surface of the first cap layer is disposed upon and in intimate contact with a surface of the core layer. Disclosed herein too is a method for manufacturing a multilayered sheet comprising melt blending a composition comprising a thermoplastic polymer and an IR absorbing additive to produce a core layer; melt blending a composition comprising a thermoplastic polymer and an ultraviolet radiation absorber to produce a first cap layer; combining the core layer with the first cap layer in such a manner that the cap layer is disposed upon and in intimate contact with a surface of the core layer.

Growing community of inventors

Tholen, Netherlands

Jos Arie Van Den Bogerd