Liquid-crystalline polymer blend and composition comprising the same
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United States of America Patent
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May 12, 2009
Grant Date -
May 10, 2007
app pub date -
Oct 27, 2006
filing date -
Oct 28, 2005
priority date (Note) -
Expired
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Abstract
The present invention provides a liquid-crystalline polymer blend which is obtained by combining liquid-crystalline polymer (A) which has a modulus of elongation of 20-32 GPa and a melting point measured by differential scanning calorimeter of 250-330° C. and liquid-crystalline polymer (B) which has a melting point measured by differential scanning calorimeter of equal to or higher than 190° C. and lower than 250° C., wherein the weight ratio of said liquid-crystalline polymer (A) to said liquid-crystalline polymer (B) is in the range of from 50:50 to 90:10. The liquid-crystalline polymer blend and the liquid-crystalline polymer blend composition comprising the same exhibit good mechanical properties such as modulus of elongation and good molding processability at low temperatures. The liquid-crystalline polymer blend and the liquid-crystalline polymer blend composition of the present invention are suitable for producing welded articles with high joint strength.
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