Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Reexamination Certificate
2011-01-04
2011-01-04
Visconti, Geraldina (Department: 1795)
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
C252S299010, C430S020000, C349S117000, C428S001100
Reexamination Certificate
active
07862745
ABSTRACT:
The present invention provides a liquid crystalline polyester composition comprising (A) a liquid crystalline polyester having a solubility parameter σAof from 13 (cal/cm3)1/2to 13.5 (cal/cm3)1/2and (B) a polyhydric alcohol fatty acid ester having a solubility parameter σBof from 9 (cal/cm3)1/2to 9.5 (cal/cm3)1/2, wherein the component (B) is contained in the amount of from 0.1 to 1 parts by weight on the basis of 100 parts by weight of the component (A). The composition has a good mold releasing property to dies in a melt molding at the time of producing a molded article by melt molding the composition and providing a molded article with sufficiently reduced blisters.
REFERENCES:
patent: 5409979 (1995-04-01), Nakai
patent: 3459768 (2003-08-01), None
patent: 2004-83870 (2004-03-01), None
patent: 2006-117736 (2006-05-01), None
Fedors, “A Method for Estimating Both the Solubility Parameters and Molar Volumes of Liquids,”Polymer Engineering and Science, Feb. 1974, vol. 14, No. 2, pp. 147-154.
Harada Hiroshi
Tano Daisuke
Foley & Lardner LLP
Sumitomo Chemical Company Limited
Visconti Geraldina
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