Polymerizable compounds and their polymers

Details Polymerizable compounds and their polymers Polymerizable compounds and their polymers

2007-01-02

2007-01-02

Wu, Shean C. (Department: 1756)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

C428S001200, C428S001300, C428S001310, C252S299010, C252S299610, C252S299620, C252S299630, C252S299660, C252S299670, C548S526000, C570S128000, C570S138000, C570S183000

Reexamination Certificate

active

10752295

ABSTRACT:
A compound represented by formula (1) or (2) and a polymer obtained by polymerizing the compound are provided:wherein Rais one of the groups represented by Formulas (3-1) to (3-5); Rbis hydrogen, halogen, or a side chain such as —CN, —NCO, —NCS or alkyl having a carbon number of 1 to 20; A is a cyclic diyl group such as 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl, bicyclo[2.2.2]oct-1,4-diyl or bicyclo[3.1.0]hex-3,6-diyl, wherein at least one A is substituted 1,4-phenylene represented by Formula (4-1) or (4-2); Z is a single bond or a bonding group such as alkylene having a carbon number of 1 to 20; Rcis hydrogen, halogen, —CF3or alkyl having a carbon number of 1 to 5; m is an integer of 1 to 6, and q is 0 or 1.

REFERENCES:
patent: 5622648 (1997-04-01), Parri et al.
patent: 5863457 (1999-01-01), Hasebe et al.
patent: 6844032 (2005-01-01), Miyazawa et al.
patent: 2005/0213009 (2005-09-01), Yanai et al.
patent: 2005/0224757 (2005-10-01), Syundo et al.
patent: 07-017910 (1995-01-01), None
patent: 09-316032 (1997-09-01), None
patent: 2003-128665 (2003-05-01), None
English abstract for JP 2003-128665.

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