Patent ID: 7641814
Filing Date: 2010-01-05
Classification: B32B,C08G,C09K,Y10T

Abstract:
1. A film or sheet comprising a barrier resin wherein the outside surface of the film or sheet demonstrates a root mean square value for surface roughness in the range of about 0.7 μm or less, when measured using an optical profilometer at a field of view of 0.72×0.54 mm and with a data density of 640 pixels in the horizontal direction and 480 pixels in the vertical direction and the barrier resin comprising an LCP, which comprises or is produced from a polymer comprising repeat units of the formulae —C(O)—R 1 —C(O)— (formula I); —O—R 2 —O— (formula II); —O—R 4 —O— (formula V); —O—Ar—C(O)— (formula IIIA); and —O—NPh—C(O)— (formula IIIB) wherein LCP is liquid crystalline polymer; Ar is an arylene group; NPh is a naphthylene group, from 90 to 100 mole percent of R from 90.0 to 100 mole percent of R each R formula V is about 1 to about 3 mole % of the total of formula I %; the molar ratio of formula I to the sum of formula II and formula V is about 1:1; and the total amount of the repeat unit (formula I+formula V) plus the repeat unit (formula I+formula II) is from about 25 to about 35 mole % of the LCP; the amount of formula IIIA is from about 45 to about 55 mole % of the LCP; and the amount of formula IIIB is from about 15 to about 25 mole % of the LCP.