G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/00 (2006.01) B29C 55/00 (2006.01) B29C 55/04 (2006.01) B29D 11/00 (2006.01) G02B 5/02 (2006.01)
Patent
CA 2566964
A method of making an optical film (120) comprises heating the optical film comprising greater than or equal to 80 wt.% polycarbonate to a sufficient temperature to stretch the optical film, wherein the weight percent is based on a total weight of the optical film; and stretching the optical film, wherein a resulting stretched optical film has a linear coefficient of thermal expansion (CTE) measured in a direction parallel to a stretching direction of less than or equal to 50 x 10-6 cm/cm/~C.
Un procédé de production d'un film optique (120) consiste à chauffer le film optique renfermant au moins 80 % en poids de polycarbonate, à une température suffisante pour étirer le film optique , le pourcentage en poids étant basé sur le poids total du film optique; puis on étire le film optique de sorte que le film optique étiré résultant présente un coefficient linéaire de dilatation thermique mesuré dans une direction parallèle à la direction d'étirement, qui soit inférieur ou égal à 50 x 10?-6¿ cm/cm/·C.
Ambrose Nickey
Hay Grant
Herrmann Eugene David
Kumar Karkala Arun
Peters Philip Matthew
Company General Electric
Craig Wilson And Company
Sabic Innovative Plastics Ip B.v.
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