Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2008-10-29
2010-11-30
Jagannathan, Vasu (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C528S361000, C524S081000, C524S401000, C524S413000, C524S437000, C524S444000, C524S445000, C524S495000, C524S496000, C524S494000
Reexamination Certificate
active
07842760
ABSTRACT:
The present invention provides a liquid-crystalline polyester blend, which is obtained by combining a liquid-crystalline polyester (A) and a liquid-crystalline polyester (B) such that the ratio by weight of (A)/(B) is 99/1 to 80/20:liquid-crystalline polyester (A) which consists of aromatic oxycarbonyl repeating units, aromatic dioxy repeating units and aromatic dicarbonyl repeating units, and contains 40-80 mol % of the repeating unit represented by formula (I) based on the total repeating units constituting the liquid-crystalline polyester (A);liquid-crystalline polyester (B) which comprises repeating units represented by formulae (I) and (II), wherein the molar proportion of the total amount of the repeating units represented by formulae (I) and (II) based on the total amount of the repeating units constituting the liquid-crystalline polyester (B) is greater than or equal to 90 mol % and the molar proportion of the repeating units represented by formulae (I) to (II) is from 10/90 to 50/50.The liquid-crystalline polyester blend of the present invention exhibits excellent dielectric properties in high frequency regions as well as good impact strength and molding processability.
REFERENCES:
patent: 4161470 (1979-07-01), Calundann
patent: 7531222 (2009-05-01), Terada et al.
patent: 2003/0008979 (2003-01-01), Suenaga et al.
patent: 2004/0044169 (2004-03-01), Yokota et al.
patent: 2007/0010647 (2007-01-01), Ueno et al.
patent: 2007/0102667 (2007-05-01), Terada et al.
Asahara Motoki
Fujiwara Hisanari
Kato Hiroyuki
Terada Hiroaki
Yonezawa Satoru
Jagannathan Vasu
Sheh Anthony H
Sughrue & Mion, PLLC
Ueno Fine Chemicals Industry, Ltd.
LandOfFree
Liquid-crystalline polyester blend does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid-crystalline polyester blend, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid-crystalline polyester blend will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4186900