Abstract: The present invention discloses an optically active cyanobiphenyl compound represented by the following general formula: ##STR1## wherein, R is ##STR2## X is hydrogen atom or chlorine atom: when X is hydrogen atom, R.sub.1 is normal alkyl having from 1 to 11 carbon atoms and when X is chlorine atom, R.sub.1 is hydrogen atom or normal alkyl having from 1 to 11 carbon atoms; n is 3 to 5; Y is --CH.sub.2 --or --CO--; and * represents an asymmetric carbon atom.

Abstract: This invention relates to new compounds WF 2015 A and B which have immunosuppressing activity and antitumor activity, to a process for producing WF 2015 A and B by culturing a WF 2015 A and/or B-producing strain belonging to the genus Scolecobasidium in a nutrient medium, and to a pharmaceutical composition comprising the same.

Abstract: Poly-2,2,6,6-tetramethyl piperidyl amino spiro glycol ether-1,3,5-triazines are provided having the formula: ##STR1## in which: R is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms, hydroxyalkyl having from two to about six carbon atoms; epoxyalkyl having from three to about eight carbon atoms; alkylaryl having from seven to about eighteen carbon atoms; acyl having from two to about eight carbon atoms; and oxyl;each of R.sub.1 and R.sub.2 is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms; and alkylene forming a heterocyclic ring including the nitrogen atom in the ring and having from four to seven carbon atoms and no or one oxygen atom; andn is a number from 2 to about 40 representing the average number of units enclosed by the brackets;and synthetic resin compositions containing the same as light stabilizers.

Abstract: An optically active ester compound is provided represented by the following general formula: ##STR1## wherein R.sub.1 is a normal alkyl group having from 6 to 18 carbon atoms; m is zero or one, n is zero or one, and m+n is one or two; X is --CO--O-- or --O--CO--; p is 3 to 6; Y is a hydrogen atom or chlorine atom; R.sub.2 is hydrogen or a normal alkyl group having from 1 to 11 carbon atoms but may be a hydrogen atom only when Y is a chlorine atom; and *C represents an asymmetric carbon atom. The ester compound of the present invention is useful as a ferroelectric liquid crystal compound.

Abstract: The present invention discloses an optically active cyanobiphenyl compound represented by the following formula and nematic liquid crystal composition comprising thereof. ##STR1## wherein, m is 2 or 3; n is 2 when m is 2 and n is one when m is 3; and * represents an asymmetric carbon atom.

Abstract: The present invention discloses an optically active pyrimidine compound represented by the following general formula: ##STR1## wherein m is 3 to 14n is 4 to 18; p is 3 to 5; and*C represents an asymmetric carbon atom.The pyrimidine compound of the present invention is a liquid crystal compound useful as an electrooptic element wherein the response of the ferroelectric liquid crystal to an electric field is utilized.

Abstract: The present invention discloses an optically active pyrimidine compound represented by the following general formula: ##STR1## wherein, a is 2 or 3, b is 2 or 3 and a+b=5; m is 4 to 18; and C represents an asymmetric carbon atom.The pyrimidine compound of the present invention is a liquid crystal compound useful as an electrooptic element wherein the response of the ferroelectric liquid crystal to an electric field is utilized.

Abstract: The present invention discloses an optically active pyrimidine compound represented by the following general formula: ##STR1## wherein m is 1 to 12;n is 4 to 18; and*C represents an asymmetric carbon atom.The pyrimidine compound of the present invention is a liquid crystal compound useful as an electrooptic element wherein the response of the ferroelectric liquid crystal to an electric field is utilized.

Abstract: Poly-2,2,6,6 tetramethyl piperidyl amino spiro glycol ether-1,3,5-triazines are provided having the formula: ##STR1## in which: R is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms, hydroxyalkyl having from two to about six carbon atoms; epoxyalkyl having from three to about eight carbon atoms; alkylaryl having from seven to about eighteen carbon atoms; acyl having from two to about eight carbon atoms; and oxyl;each of R.sub.1 and R.sub.2 is selected from the group consisting of hydrogen, alkyl having from one to about eighteen carbon atoms; and alkylene forming a heterocyclic ring including the nitrogen atom in the ring and having from four to seven carbon atoms and no or one oxygen atom; andn is a number from 2 to about 40 representing the average number of units enclosed by the brackets; and synthetic resin compositions containing the same as light stabilizers.

Abstract: A chiral phenylether compound having the formula ##STR1## wherein X is a halogen atom; m is an integer from 3 to 5, n is an integer from 3 to 12 and * designates an asymmetric carbon is disclosed. The chiral phenylether compounds are useful to prepare chiral smectic phase pyrimidine phenylether liquid crystal compounds of the formula. ##STR2## The reaction is carried by reacting (I) with butylithium, dissolving in ether and reacting with a 1-bromoalkane to yield (IV). Compounds (IV) are particularly well suited to broaden the useful temperature range of ferroelectric liquid crystal materials.

Abstract: N,N',N"-tris((2,2,6,6-tetramethyl-4-piperidyl)triazinyl) undecane triamines are provided having the formula: ##STR1## wherein: X is selected from the group consisting of ##STR2## in which: R is selected from the group consisting of hydrogen; oxyl O'; alkyl having from one to about eighteen carbon atoms; hydroxyalkyl having from two to about eight carbon atoms; epoxyalkyl having from three to about eight carbon atoms; alkaryl having from seven to about twelve carbon atoms; and acyl having from one to about eight carbon atoms;Y is O or NR.sub.2 ;R.sub.1 is alkyl having from one to about six carbon atoms; andR.sub.2 is hydrogen or alkyl having from one to about eighteen carbon atoms;as well as stabilizer compositions and stabilized synthetic polymer compositions containing the same having improved resistance to deterioration upon exposure to light.

Abstract: Thermosetting synthetic resin lacquer compositions having improved light stability are provided comprising a thermosetting synthetic resin and an alkylidene bis(benzotriazolyl phenol) having the formula (I): ##STR1## wherein: R.sub.1 is hydrogen or alkyl having from one to about twelve carbon atoms;R.sub.2 is alkyl having from one to about twelve carbon atoms or arylalkyl having from seven to about sixteen carbon atoms;X is selected from the group consisting of hydrogen, halogen, alkyl having from one to about twelve carbon atoms, aryl having from six to ten carbon atoms, arylalkyl having from seven to about sixteen carbon atoms, alkoxy having from one to about twelve carbon atoms, aryloxy having from six to ten carbon atoms; and arylalkoxy having from seven to about sixteen carbon atoms.

Abstract: Alkylidene bisphenol phosphites and phosphates having 2,2,6,6-tetramethyl piperidinyl groups are provided having the formula: ##STR1## wherein: R.sub.1 is alkyl having from one to about twelve carbon atoms;R.sub.2, R.sub.3 and R.sub.4 are each selected from the group consisting of hydrogen and alkyl having from one to about twelve carbon atoms;m is 0 or 1;n is 0 or 1;X is selected from the group consisting of ##STR2## wherein: R.sub.5 is selected from the group consisting of hydrogen, oxyl O.sup.2, alkyl having from one to about twelve carbon atoms; arylalkyl having from seven to about eighteen carbon atoms; 2,3-epoxypropyl, acyl having from one to about eight carbon atoms and ##STR3## in which R.sub.6 is selected from the group consisting of hydrogen, alkyl having from one to about twelve carbon atoms and phenyl, and Y.sub.1 is selected from the group consisting of hydrogen; acyl having from one to about twelve carbon atoms; and ##STR4## Z.sub.1 is selected from the group consisting of ##STR5## wherein R.

Abstract: Thermosetting synthetic resin lacquer compositions are provided having improved resistance to deterioration when exposed to ultraviolet light, comprising a 1-phenoxycarbonyl-2,2,6,6-tetramethylpiperidyl compound.

Abstract: Polyhydric alcohol ethers of 2,2,6,6-tetramethyl-4-piperidone ketals are provided, having the formula: ##STR1## wherein: R is selected from the group consisting of hydrogen, alkyl having from one to about eight carbon atoms, and alkyleneoxyalkylene, each alkylene having from two to about eight carbon atoms;R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about four carbon atoms;R.sub.2 is selected from the group consisting of hydrogen; oxyl O; alkyl, hydroxy alkyl and epoxyalkyl having from one to about eighteen carbon atoms; acyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eighteen carbon atoms; phenyl; phenalkyl and alkylphenyl having from seven to about twenty-four carbon atoms; andn is a number from 3 to 6as well as synthetic resin compositions having an improved resistance to deterioration and containing such compounds.

Abstract: N,N,N-tris(2,2,6,6-tetramethyl-4-piperidone ketal)-1,3,5-triazines are provided, having the formula: ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen and alkyl having from one to about four carbon atoms; andR.sub.2 is selected from the group consisting of hydrogen; oxyl O; alkyl, hydroxy alkyl and epoxyalkyl having from one to about eighteen carbon atoms; alkanoyl having from one to about eighteen carbon atoms; cycloalkyl having from three to about eighteen carbon atoms; phenyl; phenalkyl and alkylphenyl having from seven to about twenty-four carbon atoms; as well as synthetic resin compositions having an improved resistance to deterioration and containing such compounds.

Abstract: Copolymer light stabilizers are provided having at least one 2,2,6,6-tetraalkyl piperidyl group in the molecule and a molecular weight within the range from about 1000 to about 20,000, that are copolymers of a maleic or fumaric acid ester containing a 2,2,6,6-tetraalkyl piperidyl group in the alcohol group of the formula: ##STR1## wherein ##STR2## R.sub.2 is alkyl or R.sub.1 ; X is ##STR3## R.sub.6 is lower alkyl; R.sub.3 is hydrogen or alkyl;R.sub.4 is hydrogen or methyl;R.sub.5 is alkylene;Y is ##STR4## R.sub.7 is alkylene; and at least one monomer selected from the group consisting of aliphatic carboxylic acid vinyl ester having from two to eight carbon atoms; alkyl vinyl ethers having from one to eighteen carbon atoms; triallyl isocyanurate; pinene; and tricyclo-(5.2.1.0.sup.2.6)-decene-3; and synthetic resin compositions having improved light stability comprising per 100 parts by weight of resin from 0.001 to 5 parts by weight of the polymeric light stabilizer.

Abstract: Bis(2,2,6,6-tetramethylpiperidyl-1,3,5-triazinyl)-spirodiamines and spiroglycol ethers are provided, having the formula: ##STR1##

Abstract: Tetra-2,2,6,6-tetramethyl-4-piperidinyl)-3-methyl-5-(1',2'-biscarboxylate)- ethyl-cyclohexane or 3-cyclohexene-1,2-dicarboxylates are provided having the formula (I) or (II): ##STR1## wherein: R.sub.1 is selected from the group consisting of hydrogen, --O, alkyl, hydroxy alkyl and epoxyalkyl having from one to about eighteen carbon atoms, acyl having from one to about eighteen carbon atoms, cycloalkyl having from three to about eighteen carbon atoms; phenyl; phenalkyl and alkylphenyl having from seven to about twenty-four carbon atoms;R.sub.2 is lower alkyl having from one to about six carbon atoms; andX is selected from the group consisting of: ##STR2## as well as stabilized synthetic resin compositions comprising such piperidinyl compounds.

Abstract: Poly(piperidylamine) alkanes represented by the Formula (I) or (II): ##STR1## and synthetic resin compositions having improved resistance to deterioration by light containing such compounds.