Compositions – Radioactive compositions – Nuclear reactor fuel
Patent
1983-10-14
1987-11-03
Gron, Teddy S.
Compositions
Radioactive compositions
Nuclear reactor fuel
2522995, 25229963, 25229966, 2522996, 350350R, 558419, 558421, G02F 113, C09K 1930, C07C12164
Patent
active
047040050
ABSTRACT:
Compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently straight-chain C.sub.1 -C.sub.12 -alkyl or when positioned on an aromatic ring R.sup.1 and R.sup.2 may also independently be straight-chain C.sub.1 -C.sub.12 -alkoxy, or one of R.sup.1 and R.sup.2 may also be a group of the formula: ##STR2## X.sup.1 and X.sup.2 are independently single covalent bonds or one of X.sup.1 and X.sup.2 may also be --CH.sub.2 CH.sub.2 --; rings A.sup.1 and A.sup.2 are independently 1,4-phenylene or, when X.sup.1 or X.sup.2 is --CH.sub.2 CH.sub.2 --, rings A.sup.1 and A.sup.2 may also independently be trans-1,4-cyclohexylene; and R.sup.3 is straight-chain C.sub.1 -C.sub.12 -alkyl or when positioned on an aromatic ring R.sup.3 may also be straight-chain C.sub.1 -C.sub.12 -alkoxy. Their manufacture and use in liquid crystalline mixtures are described.
REFERENCES:
patent: 4279770 (1981-07-01), Inukai et al.
patent: 4368135 (1983-01-01), Osman
patent: 4393258 (1983-07-01), Sato et al.
patent: 4400293 (1983-08-01), Romer et al.
patent: 4415470 (1983-11-01), Eidenschink et al.
patent: 4439015 (1984-03-01), Rich et al.
patent: 4460770 (1984-07-01), Petrzilka et al.
patent: 4479885 (1984-10-01), Mukoh et al.
patent: 4514317 (1985-04-01), Tuong et al.
patent: 4556745 (1985-12-01), Carr et al.
Osman et al., "Stable Liquid Crystals with Large Negative Dielectric Anisotropy-III", Mol Cryst. Liq. Cryst., 82 (Letters), 339-344 (Feb. 1983).
Boller Arthur
Petrzilka Martin
Schadt Martin
Gron Teddy S.
Hoffmann-La Roche Inc.
Johnston George W.
Leon Bernard S.
Saxe Jon S.
LandOfFree
Dicyano compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dicyano compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dicyano compounds will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1671961