General Electric Company

Other

Sabic Innovative Plastics IP B.v.

Emine Elif Gurel

Grant Hay

John Frederick Graf

Marshall Gordon Jones

Steven Alfred Tysoe

Kevin Patrick Capaldo

Adel Fawzy Bastawros

Masako Yamada

Karkala Arun Kumar

Ashwit Dias

Gheorghe Cojocariu

Todd Morris Loehr

Philip Matthew Peters

Christopher A Coenjarts

Shixiong Zhu

Robert Russell Gallucci

James Alan Mahood

Jianbo Di

Cristina Cojocariu

David L Hartter

Joseph A Riello, Jr

Gareth Charles Riggs

Ronald Basham

Anshu S Ghosal

Kevin P Capaldo

Marshall Gorden Jones

A copolycarbonate is discloses, comprising units of the formula (1) wherein 70 to 99.5 mole percent of the total number of Rgroups are derived from a dihydroxy compound of formula (2) wherein Rand Rare each independently a halogen or a Calkyl group, Ris a methyl or a phenyl group, and c is independently 0 to 4; and 0.5 to 30 mole percent of the total number of Rgroups are derived from a dihydroxy compound of formula (3)HO&#x2014;R&#x2014;OH&#x2003;&#x2003;(3)wherein at least 60% of the Rgroups are aromatic, and the dihydroxy compound of formula (3) is not the same as the dihydroxy compound of formula (2), and wherein the copolycarbonate has a glass transition temperature of 250&#xb0; C. or higher.

High glass transition temperature copolycarbonates, methods of manufacture, and uses thereof

Disclosed herein are light diffusing films, methods of making the same and articles using the same. In one embodiment, a light diffusing film is formed from a composition comprising: a polycarbonate, phosphite stabilizer, epoxy stabilizer, hindered phenol stabilizer, and light diffusing particles having a refractive index of about 1.3 to about 1.7. The film comprises a hiding power of 0 to about 0.5. In one embodiment, a method for producing a film comprises combining a polycarbonate, a phosphite stabilizer, an epoxy stabilizer, and light diffusing particles to form a combination, and forming the combination into the film.

Light diffusing films, methods of making the same, and articles using the same

A light-diffusing film comprises about 90 wt. % to about 99.999 wt. % polycarbonate, wherein the polycarbonate comprises a yellowness index of about 0.8 to about 1.5 as measured in accordance with ASTM E313-73 (D1925); about 0.001 wt. % to about 3 wt. % light-diffusing particles; wherein weight percents are based on a total weight of the light-diffusing film; and wherein the light-diffusing film comprises a light transmission of about 45% to about 65% as measured in accordance with ASTM D1003-00, and a hiding power of 0 to about 0.5.

Light-diffusing films, backlight display devices comprising the light-diffusing films, and methods of making the same

A light collimating and diffusing film and a method for making the film are provided. The film includes a plastic layer having a first side and a second side opposite the first side and at least a first peripheral edge. The first side has a first textured surface, wherein between 7 to 20 percent of slope angles on the first textured surface proximate a first axis has a value between zero and five degrees. The first axis is substantially parallel to the first peripheral edge. The plastic layer collimates light propagating therethrough.

Light collimating and diffusing film and system for making the film

A film comprising in admixture a thermoplastic resin component comprising a thermoplastic resin component and a glass having a refractive index within 0.04 of the thermoplastic resin component, wherein the film has a haze of less than about 20%, total transmittance of greater than about 70%, and a coefficient of thermal expansion of about 20 to about 80 um/m/&#xb0; C. measured over a temperature range of 20 to 70&#xb0; C. The films are of particular utility in optical applications such as light diffuser films.

Transparent films, compositions, and method of manufacture thereof

Growing community of inventors

Evansville, IN, United States of America

Emine Elif Gurel