P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for prepari

Details P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for prepari P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for prepari

1975-10-03

1977-04-12

Padgett, Benjamin R.

Compositions

Liquid crystal compositions

260465D, 350160LC, C09K 334, G02F 113

Patent

active

040174166

ABSTRACT:
Novel nematic liquid crystal compounds having a broad nematic temperature range and a positive dielectric anisotropy by themselves, that is, p-cyanophenyl 4-alkyl-4'-biphenylcarboxylates wherein the alkyl is a straight chain alkyl group having 4-8 carbon atoms or a branched alkyl group having 4-7 carbon atoms and having methyl group as branched group, and a method for preparing the same are provided. Further, novel nematic liquid crystal compositions having a broader nematic temper range i.e. a sufficiently lower nematic limit and a sufficiently higher upper nematic limit is provided by using said compounds.

REFERENCES:
patent: 3923857 (1975-12-01), Doller et al.
patent: 3925238 (1975-12-01), Gavrilovic
patent: 3947375 (1976-03-01), Gray et al.
patent: 3952046 (1976-04-01), Scherrer et al.
Morrison; R. T. & Boyd; R. N., Organic Chemistry, Allyn & Bacon, Inc., Boston, pp. 440-441, 444-445, 474, 622 (1959).

Affiliated with

Also associated with

Rating

P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for prepari does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for prepari, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for prepari will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1280352