Ferroelectric, liquid-crystalline polymers, a process for their

Details Ferroelectric, liquid-crystalline polymers, a process for their Ferroelectric, liquid-crystalline polymers, a process for their

1990-12-27

1993-07-13

Stoll, Robert L.

Compositions

Liquid crystal compositions

25229965, 25229966, 25229967, 526313, 526323, 526326, 526328, 528192, 528194, C09K 1920, C09K 1912, C08F12214, C08G 6302

Patent

active

052270904

ABSTRACT:
Ferroelectric, liquid-crystaline polymers contain repeating units of the formula (I) ##STR1## in which the symbols have the following meanings: B=a group having at least one chiral center, of the formula ##STR2## in which R.sup.6, R.sup.7 and R.sup.8 are identical or different and are H, CH.sub.3, OCH.sub.3, F, Cl or Br, and at least one of the groups R.sup.6, R.sup.7 and R.sup.8 must be H and X=H, F, Cl or Br and R.sup.9 =H or C.sub.1 -C.sub.10 -alkyl,

REFERENCES:
patent: 4818807 (1989-04-01), Morita et al.
patent: 4844835 (1989-07-01), Uchida et al.
patent: 4904065 (1990-02-01), Yuasa et al.
patent: 4995705 (1991-02-01), Yoshinaga et al.

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