Abstract: A process for preparing a disazo dye represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, a halogen atom, a nitro group, a trifluoromethyl group, a lower alkoxycarbonyl group or a lower alkylsulfonyl group, R.sup.3 represents a lower alkyl or allyl group which may optionally have a substituent or substituents, and R.sup.4 represents a lower alkyl or allyl group having a substituent or substituents, which comprises diazotizing an amine represented by the following formula: ##STR2## wherein R.sup.1 and R.sup.2 are the same as defined above, and coupling the diazotized product with a bis(N,N-di-substituted anilino)methane represented by the following formula: ##STR3## wherein R.sup.3 and R.sup.4 are the same as defined above.

Abstract: A process of crosslinking a silicone rubber using a combination of an aroyl peroxide and a solid peroxydicarbonate as crosslinking agent. The present process is attended with rapid crosslinking and results in products having favorable end properties, especially with regard to the absence of blooming.

Abstract: A reactive phthalocyanine dye having a specific substituent capable of dyeing cellulose fibers or a mixed fibers of polyester fibers and cellulose fibers to provide Turkish blue-dyed fibers excellent in color fastness to light and color fastness to washing is disclosed, which is represented by general formula [I] ##STR1##

Abstract: An optical recording medium in which recording and/or reproducing is made by the state changes of material owing to laser beams, comprising an indophenol-group dye supported on a substrate.

Abstract: A reactive monoazo dyestuff of the general formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 each represents substituted or unsubstituted alkyl, cyclohexyl, aralkyl or substituted or unsubstituted aryl, Z represents hydrogen, chlorine, methyl or acylamino, (A) represents substituted or unsubstituted alkylene, (B) represents oxygen or --NH--, X represents fluorine or chlorine, and Y represents --NR.sup.4 R.sup.5 or --OR.sup.6 wherein R.sup.4, R.sup.5 and R.sup.6 each represents hydrogen, substituted or unsubstituted alkyl, alkenyl, cyclohexyl, aryl or aralkyl, or --NR.sup.4 R.sup.5 represents a 5- or 6-membered nitrogen-containing heterocyclic ring formed by combining R.sup.4 and R.sup.5.

Abstract: A perinone compound represented by the formula ##STR1## wherein R represents arylene; R and R', which may be the same or different, each represents alkoxyalkyl, hydroxyalkyl, N,N-dialkylaminoalkyl, cycloalkyl or aralkyl; and X represents oxygen or sulfur. The perinone compound fluoresces a yellowish green to orange color and is useful as a fluorescent dye or dyestuff.

Abstract: A disazo reaction dyestuff for cellulose fibers which is of the formula: ##STR1## wherein D is a residue of a monoazo dye, R.sup.1 is hydrogen or lower alkyl, and X is a group: ##STR2## wherein R.sup.2 and R.sup.3 are each hydrogen, methyl, methoxy or --SO.sub.3 M, Y is an aromatic or aliphatic divalent residue and M is hydrogen or an alkali metal.

Abstract: A sheet for sublimation transfer recording which is characterized by being composed of a base coated with an ink for sublimation heat-sensitive transfer and further coated with a heat-resistant resin such as a water-soluble cellulose type derivative, e.g., methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose or hydroxybutylmethyl cellulose. The obtained recording has good definition and shows no abrasion staining in the non-printed part of the image receiving body, and peeling-off of the recording sheet from the image receiving body is easy.

Abstract: Reactive azo dyes represented by the general formula (I) or (II): ##STR1## wherein M is a hydrogen atom or an alkali metal, R.sup.1 is a hydrogen atom, a chlorine atom, a lower alkyl group, a lower alkoxy group, a nitro group or a carboxyl group, R.sup.2 and R.sup.8 are a lower alkyl group, a lower alkoxy group or a sulfonic acid group, R.sup.3, R.sup.7 and R.sup.9 are a hydrogen atom, a lower alkyl group, a lower alkoxy group, an acetylamino group or a sulfonic acid group, R.sup.4 and R.sup.5 are a hydrogen atom, a methyl group, a methoxy group or a sulfonic acid group, R.sup.6 is a hydrogen atom, a lower alkyl group, a lower alkoxy group or a sulfonic acid group, Z.sup.1 is a chlorine atom, a fluorine atom, an aliphatic or an aromatic amino residual group, a methoxy group or a phenoxy group, Z.sup.2 is the same one as Z.sup.1 when Z.sup.3 is ##STR2## Z.sup.2 is a chlorine atom or a fluorine atom when Z.sup.

Abstract: There is herein, disclosed a dye laser including a container for a dye solution and a pumping energy source coupled thereto, said dye solution containing a perimidone dye formula (I): ##STR1## wherein R.sup.1 is a hydrogen atom, an alkyl group, a trifluoromethyl group, an alkoxycarbonyl group, an alkoxycarbonylalkyl group, an aralkyl group or a phenyl group; R.sup.2 is an optionally substituted alkoxycarbonyl group, a cyclohexyloxycarbonyl group, tetrahydrofurfuryloxycarbonyl group, an aryloxycarbonyl group, a benzyloxycarbonyl group, an acyl group, a cyano group or an optionally substituted carbamoyl group; R.sup.3 and R.sup.4 which may be the same or different are each a hydrogen atom, an alkyl group, an alkoxyalkyl group, an aralkyl group or an aryl group.

Abstract: This invention relates to thiazoleazophenylaminoethyl carbonyloxy-C.sub.8 -C.sub.10 -alkyl compounds useful as dyes for polyester fibers represented by the formula: ##STR1## wherein X represents hydrogen, chlorine, methyl, methoxy or ethoxy; Y represents methyl, acetylamino or propionylamino; and R.sup.1 represents C.sub.8 -C.sub.10 alkyl.

Abstract: Reactive pyridone azo dyestuffs of the general formula [I]: ##STR1## wherein D represents ##STR2## represents phenylene optionally substituted by lower alkyl, lower alkoxy, trifluoromethyl or halogen, ##STR3## represents phenylene optionally substituted by lower alkyl, lower alkoxy, halogen or acetylamino,--A--represents --CH.sub.2 --, --C.sub.2 H.sub.4 --, --OC.sub.2 H.sub.4 --, ##STR4## --SO.sub.2 NHC.sub.2 H.sub.4 --or --SO.sub.2 C.sub.2 H.sub.4 --, --X represents hydrogen, lower alkyl, lower alkoxy, nitro, trifluoromethyl or halogen,--Y represents alkyl, aryl or aralkyl optionally substituted by lower alkoxy or phenoxy,--Z--represents a connecting group of --O--or --S--,--V represents --CN or --CONH.sub.2,--W represents a 6-membered nitrogen-containing heterocyclic ring having at least one active halogen atom, andn represents 0 or 1.These reactive pyridone azo distuffs give dyeings which are yellowish to reddish orange in color which have excellent light fastness.

Abstract: A DC power cable includes a conductor and an insulation of a thermoplastic resin formed around the conductor. The insulation contains carbon black in an amount of about 0.2 to about 5% of the total weight of the thermoplastic resin and the carbon black, and the ratio of mineral oil absorption (cc/100 g) to specific surface (m.sup.2 /g) in the carbon black is not less than 0.7. The carbon black has the hydrogen content of not more than 0.6% by weight. The specific surface is measured by BET equation. The carbon black has a particle size of 10 to 100 nm.

Abstract: This invention relates to disazo dyestuffs for cellulose or cellulose-containing fibers represented by the formula: ##STR1## wherein R.sup.1 represents a hydrogen atom, a nitro group, a halogen atom, an alkyl group of 1 or 2 carbon atoms or an acetylamino group; R.sup.2 and R.sup.3 each represents a hydrogen atom, an alkyl group of 1 or 2 carbon atoms, and alkoxy group or an acetylamino group; Y.sup.1 and Y.sup.2 each represents a hydrogen atom or an alkyl group, and alkenyl group, a cyclohexyl group, an aryl group or an aralkyl group which group ma optionally be substituted by cyano, hydroxyl, lower alkoxy or dialkylamino, or NY.sup.1 Y.sup.2 represents a 5-membered or 6-membered nitrogen-containing heretocyclic ring formed by combination of Y.sup.1 and Y.sup.2, and the total carbon atoms in Y.sup.1 and Y.sup.2 is 18 or less.

Abstract: The transfer recording method which comprises heating a transfer sheet having a color material layer containing a sublimable dye on a base according to the image information received, thereby subliming said sublimable dye and transfer recording it on an image receiving layer of a recording sheet, a transfer recording method which is characterized by that the image receiving layer of the recording sheet contains a compound capable of reacting with the sublimable dye contained in the color material layer of the transfer sheet.

Abstract: A monoazo dye for synthetic fibers, particularly polyester fibers, which can dye the fiber clear blue with excellent fastness to sublimation, fastness to light, resistance for after finish and alkali discharge.

Abstract: Monoazo dyes for dyeing polyester fibers represented by the formula: ##STR1## wherein D represents a substituted or unsubstituted thiazolyl, benzothiazolyl, thiadiazolyl or pyridyl group, X represents a hydrogen atom, a chlorine atom, a methyl group, a methoxy group or an acylamino group, Y represents a hydrogen atom, a chlorine atom, a methyl group, an alkoxy group or an alkoxyalkyl group, R.sup.1 represents a hydrogen atom, a substituted or unsubstituted alkyl, alkenyl or aryl group, and R.sup.2 represents a phenoxymethyl group, a phenoxyethyl group, a benzyl group or a tetrahydrofurfuryl group.Fibers which can be dyed with the azo dyes of the present invention include polyester fibers such as polyethylene terephthalate, a polycondensate between terephthalic acid and 1,4-bis (hydroxymethyl) cyclohexane or the like and blended or mixed fibers of the above-described polyester fibers with natural fibers such as cotton, silk or wool.

Abstract: Diaminopyridine-based azo dyes for cellulose-containing fibers, represented by the following formula: ##STR1## and the other is hydrogen, phenyl, benzyl, allyl, or alkyl which are unsubstituted or substituted by hydroxyl or lower alkoxy(whereinA is methylene, ethylene, propylene, or 1,3-butylene;n is 0 or 1;Y.sup.1 and Y.sup.2, which are the same or different, are hydrogen, alkyl, alkenyl, cyclohexyl, aryl, or aralkyl which are unsubstituted or substituted by cyano, hydroxy, lower alkoxy, or dialkylamino, or Y.sup.1 and Y.sup.2 together form a 5- or 6-membered heterocyclic ring (NY.sup.1 Y.sup.2) containing one nitrogen, the total number of carbon atoms of Y.sup.1 and Y.sup.2 being 18 or less;R.sup.1 is nitro, cyano, methylsulfonyl, phenylsulfonyl, mono-lower alkylaminosulfonyl, di-lower alkylaminosulfonyl, acetyl, or benzoyl;R.sup.2 and R.sup.3, which are the same or different, are hydrogen, trifluoromethyl, halogen, or cyano;R.sup.

Abstract: This invention relates to an anthraquinone dyestuff for cellulose containing fibers represented by the formula: ##STR1## wherein R.sup.1 represents amino or hydroxyl, R.sup.2 represents hydrogen, chlorine, bromine, cyano or --SO.sub.2 R wherein R represents methyl, ethyl or phenyl, R.sup.3 and R.sup.4 each represents hydrogen, amino, hydroxyl, nitro, chlorine or bromine, Y represents a connecting group consisting of --O-- or --S--, one of X.sup.1 and X.sup.2 is hydrogen and the other is a group of the formula: ##STR2## wherein --Z-- represents a connecting group consisting of --O-- or --S--, --W.sup.1 represents phenyl or --NR.sup.6 R.sup.7, R.sup.5 represents hydrogen, methyl, ethyl, methoxy, ethoxy, chlorine or bromine, R.sup.6 and R.sup.7 each represents hydrogen or alkyl, alkenyl, cyclohexyl, aryl or aralkyl which may optionally be substituted by lower alkoxy, or NR.sup.6 R.sup.7 represents a 5-membered or 6-membered nitrogen-containing heterocyclic ring formed by combination of R.sup.6 and R.sup.

Abstract: A monoazo dyestuff mixture which comprises 90-30% by weight of a monoazo dyestuff of the general formula [II]: ##STR1## wherein R.sup.2 is C.sub.3-6 alkyl, C.sub.