Liquid crystal polymer film and laminate comprising the same
a liquid crystal polymer and laminate technology, applied in the field of polymer film for a laminate, can solve the problems of affecting the subsequent lamination process, affecting the peeling strength, and reducing the peeling strength, and achieve the effect of enhancing the peeling strength
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preparation example 1
[0029]A mixture of 6-hydroxy-2-naphthalenecarboxylic acid (700 g), 4-hydroxybenzoic acid (954 g), acetyl anhydride (1085 g), and sodium phosphite (1.3 g) was charged into a 3-liter autoclave and stirred for acetylation at 160° C. for about 2 hours under nitrogen atmosphere at normal pressure. Subsequently, the mixture was heated to 320° C. at a rate of 30° C. per hour, and then under this temperature condition, the pressure was reduced slowly from 760 torr to 3 torr or below, and the temperature was increased from 320° C. to 340° C. Afterwards, the stirring power and the pressure were increased, and steps of discharging polymers, drawing strands, and cutting strands into pellets were conducted to obtain an LCP resin having a melting point about 265° C. and a viscosity about 60 pascal-seconds (Pa·s) measured at 300° C. (hereinafter referred to as @300° C.).
preparation example 2
[0030]A mixture of 6-hydroxy-2-naphthalenecarboxylic acid (440 g), 4-hydroxybenzoic acid (1145 g), acetyl anhydride (1085 g), and sodium phosphite (1.3 g) was charged into a 3-liter autoclave and stirred for acetylation at 160° C. for about 2 hours under nitrogen atmosphere at normal pressure. Subsequently, the mixture was heated to 320° C. at a rate of 30° C. per hour, and then under this temperature condition, the pressure was reduced slowly from 760 torr to 3 torr or below, and the temperature was increased from 320° C. to 340° C. Afterwards, the stirring power and the pressure were increased, and steps of discharging polymers, drawing strands, and cutting strands into pellets were conducted to obtain an LCP resin having a melting point about 305° C. and a viscosity about 40 Pa·s @300° C.
preparation example 3
[0031]A mixture of 6-hydroxy-2-naphthalenecarboxylic acid (540 g), 4-hydroxybenzoic acid (1071 g), acetyl anhydride (1086 g), sodium phosphite (1.3 g), and 1-methylimidazole (0.3 g) was charged into a 3-liter autoclave and stirred for acetylation at 160° C. for about 2 hours under nitrogen atmosphere at normal pressure. Subsequently, the mixture was heated to 320° C. at a rate of 30° C. per hour, and then under this temperature condition, the pressure was reduced slowly from 760 torr to equal to or less than 3 torr or below, and the temperature was increased from 320° C. to 340° C. Afterwards, the stirring power and the pressure were increased, and steps of discharging polymers, drawing strands, and cutting strands into pellets were conducted to obtain an LCP resin having a melting point about 278° C. and a viscosity about 45 Pa·s @300° C.
[0032]LCP Film
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Abstract
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